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Live air quality data

Cleanest air for outdoor sport

449 ski resorts and coastal spots scored by long-term health impact. Updated every 6 hours from Open-Meteo.

How we score air quality

Every pollutant adds to the score. More pollution always means a higher number. Each pollutant contributes a different amount based on its long-term health impact. The points below show how much each adds when at its WHO 2021 guideline limit:

PM2.59 pts · Fine particles. Strongest link to mortality.
NO₂5 pts · Traffic and combustion gas.
O₃3 pts · Ozone. Higher at altitude and coast.
PM102 pts · Coarse dust and pollen.
SO₂1 pt · Industrial emissions.

PM2.5 and PM10 use a non-linear curve (steeper at low concentrations, reflecting GBD GEMM evidence). NO₂, O₃ and SO₂ scale linearly. All pollutants at their WHO limit = 20 (the Excellent boundary). Sources: WHO 2021 Air Quality Guidelines, GBD 2019, Burnett et al. 2018.

449 locations
#1Treble Cone
New Zealand · Mountain
2
Excellent
PM2.5
0.8
PM10
1.1
NO2
0.3
O3
40.0
SO2
0.0
#2Sälen
Sweden · Mountain
3
Excellent
PM2.5
1.0
PM10
1.5
NO2
0.4
O3
54.0
SO2
0.1
#3Sun Valley
United States · Mountain
3
Excellent
PM2.5
0.9
PM10
1.0
NO2
2.9
O3
47.0
SO2
0.2
#4Vallnord Pal Arinsal
Andorra · Mountain
3
Excellent
PM2.5
0.6
PM10
0.7
NO2
0.2
O3
53.0
SO2
0.0
#5Vemdalen
Sweden · Mountain
3
Excellent
PM2.5
0.9
PM10
1.7
NO2
0.3
O3
64.0
SO2
0.1
#6Big Bear Mountain
United States · Mountain
3
Excellent
PM2.5
0.6
PM10
0.7
NO2
1.7
O3
61.0
SO2
0.3
#7Åre
Sweden · Mountain
3
Excellent
PM2.5
0.8
PM10
1.3
NO2
0.2
O3
66.0
SO2
0.0
#8Breckenridge
United States · Mountain
3
Excellent
PM2.5
0.4
PM10
0.5
NO2
0.8
O3
80.0
SO2
0.1
#9Cardrona
New Zealand · Mountain
3
Excellent
PM2.5
1.2
PM10
1.6
NO2
0.9
O3
38.0
SO2
0.0
#10Coronet Peak
New Zealand · Mountain
3
Excellent
PM2.5
1.3
PM10
1.8
NO2
0.7
O3
45.0
SO2
0.1
#11Formigal-Panticosa
Spain · Mountain
3
Excellent
PM2.5
1.2
PM10
1.7
NO2
0.2
O3
56.0
SO2
0.0
#12Salla
Finland · Mountain
3
Excellent
PM2.5
1.1
PM10
2.2
NO2
0.5
O3
56.0
SO2
0.1
#13Geilo
Norway · Mountain
3
Excellent
PM2.5
1.2
PM10
1.4
NO2
0.5
O3
53.0
SO2
0.0
#14Hemsedal
Norway · Mountain
3
Excellent
PM2.5
0.9
PM10
1.2
NO2
0.4
O3
53.0
SO2
0.0
#15Keystone
United States · Mountain
3
Excellent
PM2.5
0.4
PM10
0.5
NO2
0.8
O3
80.0
SO2
0.1
#16Kvitfjell
Norway · Mountain
3
Excellent
PM2.5
1.3
PM10
1.5
NO2
1.1
O3
54.0
SO2
0.1
#17Lake Louise
Canada · Mountain
3
Excellent
PM2.5
0.7
PM10
0.7
NO2
1.4
O3
60.0
SO2
0.0
#18Mt Hutt
New Zealand · Mountain
3
Excellent
PM2.5
1.5
PM10
2.0
NO2
0.9
O3
38.0
SO2
0.0
#19Myrkdalen
Norway · Mountain
3
Excellent
PM2.5
1.1
PM10
2.0
NO2
0.6
O3
54.0
SO2
0.0
#20Norefjell
Norway · Mountain
3
Excellent
PM2.5
1.0
PM10
1.2
NO2
0.7
O3
55.0
SO2
0.0
#21Ohau Snow Fields
New Zealand · Mountain
3
Excellent
PM2.5
1.6
PM10
2.2
NO2
0.7
O3
38.0
SO2
0.0
#22Oppdal
Norway · Mountain
3
Excellent
PM2.5
1.1
PM10
1.5
NO2
1.0
O3
54.0
SO2
0.1
#23Queenstown/Remarkables
New Zealand · Mountain
3
Excellent
PM2.5
1.3
PM10
1.8
NO2
0.7
O3
45.0
SO2
0.1
#24Snowshoe
United States · Mountain
3
Excellent
PM2.5
0.6
PM10
0.6
NO2
1.7
O3
55.0
SO2
1.5
#25Thredbo
Australia · Mountain
3
Excellent
PM2.5
1.4
PM10
1.8
NO2
1.3
O3
41.0
SO2
0.1
#26Thulusdhoo
Maldives · Coastal
3
Excellent
PM2.5
1.5
PM10
2.3
NO2
0.8
O3
35.0
SO2
0.9
#27Winter Park
United States · Mountain
3
Excellent
PM2.5
0.4
PM10
0.6
NO2
1.0
O3
77.0
SO2
0.1
#28Ylläs
Finland · Mountain
3
Excellent
PM2.5
1.2
PM10
2.1
NO2
0.5
O3
60.0
SO2
0.1
#29Perisher
Australia · Mountain
3
Excellent
PM2.5
1.4
PM10
1.8
NO2
1.3
O3
41.0
SO2
0.1
#30Grandvalira
Andorra · Mountain
3
Excellent
PM2.5
0.7
PM10
0.9
NO2
0.2
O3
54.0
SO2
0.0
#31Rincón
Puerto Rico · Coastal
3
Excellent
PM2.5
1.1
PM10
1.6
NO2
0.2
O3
40.0
SO2
0.3
#32North Malé Atoll
Maldives · Coastal
3
Excellent
PM2.5
1.5
PM10
2.3
NO2
0.8
O3
35.0
SO2
0.9
#33Arapahoe Basin
United States · Mountain
3
Excellent
PM2.5
0.4
PM10
0.5
NO2
0.8
O3
80.0
SO2
0.1
#34Aspen
United States · Mountain
3
Excellent
PM2.5
0.6
PM10
0.7
NO2
1.2
O3
71.0
SO2
0.2
#35Nias (Sorake)
Indonesia · Coastal
4
Excellent
PM2.5
2.1
PM10
2.6
NO2
0.5
O3
61.0
SO2
0.4
#36Bad Gastein
Austria · Mountain
4
Excellent
PM2.5
1.9
PM10
2.7
NO2
0.5
O3
73.0
SO2
0.1
#37Passo Tonale
Italy · Mountain
4
Excellent
PM2.5
1.2
PM10
1.5
NO2
0.4
O3
71.0
SO2
0.1
#38Sauze d'Oulx
Italy · Mountain
4
Excellent
PM2.5
1.6
PM10
2.1
NO2
0.6
O3
70.0
SO2
0.2
#39St. Anton
Austria · Mountain
4
Excellent
PM2.5
1.7
PM10
2.2
NO2
0.4
O3
76.0
SO2
0.1
#40Vogel
Slovenia · Mountain
4
Excellent
PM2.5
2.0
PM10
2.8
NO2
0.9
O3
68.0
SO2
0.1
#41Canazei/Val di Fassa
Italy · Mountain
4
Excellent
PM2.5
1.2
PM10
1.9
NO2
0.5
O3
77.0
SO2
0.1
#42Alta Badia
Italy · Mountain
4
Excellent
PM2.5
1.4
PM10
1.8
NO2
0.7
O3
74.0
SO2
0.1
#43Banff Sunshine Village
Canada · Mountain
4
Excellent
PM2.5
1.1
PM10
1.1
NO2
3.5
O3
58.0
SO2
0.2
#44Levi
Finland · Mountain
4
Excellent
PM2.5
1.2
PM10
2.3
NO2
0.9
O3
60.0
SO2
0.1
#45Bardonecchia
Italy · Mountain
4
Excellent
PM2.5
1.5
PM10
2.0
NO2
0.4
O3
79.0
SO2
1.2
#46Big White
Canada · Mountain
4
Excellent
PM2.5
1.3
PM10
1.4
NO2
3.5
O3
44.0
SO2
0.4
#47Bormio
Italy · Mountain
4
Excellent
PM2.5
1.2
PM10
1.5
NO2
0.4
O3
74.0
SO2
0.1
#48Cauterets
France · Mountain
4
Excellent
PM2.5
2.0
PM10
2.3
NO2
0.3
O3
57.0
SO2
0.3
#49Cortina d'Ampezzo
Italy · Mountain
4
Excellent
PM2.5
1.2
PM10
1.7
NO2
0.4
O3
74.0
SO2
0.1
#50Crested Butte
United States · Mountain
4
Excellent
PM2.5
0.9
PM10
1.1
NO2
0.7
O3
79.0
SO2
0.1
#51Kronplatz/Plan de Corones
Italy · Mountain
4
Excellent
PM2.5
1.5
PM10
2.2
NO2
1.0
O3
70.0
SO2
0.1
#52Bocas del Toro
Panama · Coastal
4
Excellent
PM2.5
2.7
PM10
4.0
NO2
0.3
O3
52.0
SO2
0.3
#53Lahinch
Ireland · Coastal
4
Excellent
PM2.5
2.3
PM10
3.8
NO2
0.6
O3
54.0
SO2
0.2
#54Les Arcs
France · Mountain
4
Excellent
PM2.5
1.8
PM10
2.2
NO2
0.4
O3
69.0
SO2
0.1
#55Livigno
Italy · Mountain
4
Excellent
PM2.5
1.0
PM10
1.5
NO2
0.2
O3
77.0
SO2
0.1
#56Nassfeld
Austria · Mountain
4
Excellent
PM2.5
1.8
PM10
2.3
NO2
0.7
O3
70.0
SO2
0.0
#57Ruka
Finland · Mountain
4
Excellent
PM2.5
1.5
PM10
3.0
NO2
0.3
O3
65.0
SO2
0.2
#58Saalbach-Hinterglemm
Austria · Mountain
4
Excellent
PM2.5
1.7
PM10
2.7
NO2
0.8
O3
73.0
SO2
0.1
#59Saint-Lary-Soulan
France · Mountain
4
Excellent
PM2.5
1.6
PM10
1.9
NO2
0.3
O3
57.0
SO2
0.1
#60Siargao/Cloud 9
Philippines · Coastal
4
Excellent
PM2.5
1.4
PM10
1.9
NO2
0.5
O3
67.0
SO2
0.6
#61Simeulue
Indonesia · Coastal
4
Excellent
PM2.5
2.7
PM10
2.9
NO2
2.7
O3
36.0
SO2
0.4
#62Steamboat
United States · Mountain
4
Excellent
PM2.5
1.3
PM10
2.0
NO2
1.2
O3
69.0
SO2
0.1
#63Trysil
Norway · Mountain
4
Excellent
PM2.5
1.1
PM10
2.1
NO2
1.5
O3
58.0
SO2
0.1
#64Unstad
Norway · Coastal
4
Excellent
PM2.5
1.1
PM10
2.2
NO2
0.5
O3
80.0
SO2
0.1
#65Vail
United States · Mountain
4
Excellent
PM2.5
1.0
PM10
1.3
NO2
2.4
O3
69.0
SO2
0.2
#66Val Thorens
France · Mountain
4
Excellent
PM2.5
2.0
PM10
2.4
NO2
0.5
O3
69.0
SO2
0.7
#67Voss
Norway · Mountain
4
Excellent
PM2.5
1.8
PM10
2.9
NO2
2.2
O3
52.0
SO2
0.2
#68Whitewater
Canada · Mountain
4
Excellent
PM2.5
1.2
PM10
1.2
NO2
2.4
O3
63.0
SO2
0.4
#69Wolf Creek
United States · Mountain
4
Excellent
PM2.5
1.0
PM10
2.0
NO2
0.3
O3
87.0
SO2
0.2
#70Zermatt
Switzerland · Mountain
4
Excellent
PM2.5
1.3
PM10
1.8
NO2
0.3
O3
73.0
SO2
0.1
#71La Grave
France · Mountain
4
Excellent
PM2.5
1.8
PM10
2.2
NO2
0.3
O3
64.0
SO2
1.3
#72Puy-Saint-Vincent
France · Mountain
4
Excellent
PM2.5
1.1
PM10
1.4
NO2
0.3
O3
71.0
SO2
0.1
#73Risoul
France · Mountain
4
Excellent
PM2.5
1.3
PM10
1.7
NO2
0.3
O3
73.0
SO2
0.1
#74Madonna di Campiglio
Italy · Mountain
4
Excellent
PM2.5
1.9
PM10
2.9
NO2
0.6
O3
68.0
SO2
0.1
#75Nendaz
Switzerland · Mountain
4
Excellent
PM2.5
1.8
PM10
2.3
NO2
0.6
O3
76.0
SO2
0.1
#76Cervinia
Italy · Mountain
4
Excellent
PM2.5
1.1
PM10
1.8
NO2
0.2
O3
71.0
SO2
0.1
#77Selva Val Gardena
Italy · Mountain
4
Excellent
PM2.5
1.3
PM10
2.1
NO2
0.8
O3
74.0
SO2
0.1
#78Serfaus-Fiss-Ladis
Austria · Mountain
4
Excellent
PM2.5
1.6
PM10
2.2
NO2
0.7
O3
71.0
SO2
0.1
#79Sölden
Austria · Mountain
4
Excellent
PM2.5
1.6
PM10
2.1
NO2
0.3
O3
69.0
SO2
0.1
#80Verbier
Switzerland · Mountain
4
Excellent
PM2.5
1.7
PM10
2.2
NO2
0.6
O3
75.0
SO2
0.1
#81Arosa Lenzerheide
Switzerland · Mountain
4
Excellent
PM2.5
1.6
PM10
2.3
NO2
0.6
O3
77.0
SO2
0.3
#82Crans-Montana
Switzerland · Mountain
4
Excellent
PM2.5
1.7
PM10
2.1
NO2
0.3
O3
72.0
SO2
0.1
#83Panorama
Canada · Mountain
4
Excellent
PM2.5
1.9
PM10
1.9
NO2
2.7
O3
59.0
SO2
0.2
#84Val d'Isère
France · Mountain
4
Excellent
PM2.5
1.7
PM10
2.0
NO2
0.3
O3
68.0
SO2
0.1
#85Hoddevik
Norway · Coastal
4
Excellent
PM2.5
1.4
PM10
3.2
NO2
2.4
O3
55.0
SO2
0.2
#86Boracay
Philippines · Coastal
4
Excellent
PM2.5
2.2
PM10
2.7
NO2
0.9
O3
56.0
SO2
2.7
#87Baler
Philippines · Coastal
4
Excellent
PM2.5
2.6
PM10
4.3
NO2
0.5
O3
42.0
SO2
0.3
#88Eoropie
United Kingdom · Coastal
4
Excellent
PM2.5
2.0
PM10
5.8
NO2
2.1
O3
55.0
SO2
0.1
#89Arabba-Marmolada
Italy · Mountain
4
Excellent
PM2.5
1.3
PM10
1.9
NO2
0.6
O3
76.0
SO2
0.1
#90Sainte-Foy-Tarentaise
France · Mountain
4
Excellent
PM2.5
1.8
PM10
2.2
NO2
0.4
O3
69.0
SO2
0.1
#91Riksgränsen
Sweden · Mountain
4
Excellent
PM2.5
1.0
PM10
2.2
NO2
0.3
O3
70.0
SO2
0.2
#92Hintertux Glacier
Austria · Mountain
4
Excellent
PM2.5
2.0
PM10
2.6
NO2
0.7
O3
70.0
SO2
0.1
#93Serre Chevalier
France · Mountain
4
Excellent
PM2.5
1.3
PM10
1.6
NO2
0.3
O3
75.0
SO2
1.2
#94Pamporovo
Bulgaria · Mountain
5
Excellent
PM2.5
3.2
PM10
3.4
NO2
1.5
O3
51.0
SO2
0.2
#95Wengen-Grindelwald
Switzerland · Mountain
5
Excellent
PM2.5
2.7
PM10
4.3
NO2
0.7
O3
74.0
SO2
0.1
#96Whiteface
United States · Mountain
5
Excellent
PM2.5
2.6
PM10
2.7
NO2
0.9
O3
73.0
SO2
0.3
#97Avoriaz
France · Mountain
5
Excellent
PM2.5
2.7
PM10
3.2
NO2
0.6
O3
72.0
SO2
0.1
#98Lech-Zürs
Austria · Mountain
5
Excellent
PM2.5
2.3
PM10
2.8
NO2
0.4
O3
74.0
SO2
0.1
#99Champéry
Switzerland · Mountain
5
Excellent
PM2.5
2.4
PM10
2.7
NO2
0.7
O3
74.0
SO2
0.1
#100Monterosa Ski
Italy · Mountain
5
Excellent
PM2.5
2.3
PM10
2.7
NO2
0.4
O3
70.0
SO2
0.1
#101Adelboden-Lenk
Switzerland · Mountain
5
Excellent
PM2.5
3.0
PM10
4.4
NO2
0.4
O3
72.0
SO2
0.1
#102Cerro Catedral
Argentina · Mountain
5
Excellent
PM2.5
3.0
PM10
3.3
NO2
0.3
O3
73.0
SO2
0.5
#103Cabarete
Dominican Republic · Coastal
5
Excellent
PM2.5
3.8
PM10
5.3
NO2
0.9
O3
55.0
SO2
1.2
#104Bude Summerleaze
United Kingdom · Coastal
5
Excellent
PM2.5
3.0
PM10
7.1
NO2
0.7
O3
60.0
SO2
0.1
#105Bundoran
Ireland · Coastal
5
Excellent
PM2.5
2.8
PM10
5.7
NO2
1.2
O3
54.0
SO2
0.1
#106Cairngorm
United Kingdom · Mountain
5
Excellent
PM2.5
2.7
PM10
4.5
NO2
2.7
O3
50.0
SO2
0.1
#107Camel Estuary
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
6.8
NO2
1.0
O3
59.0
SO2
0.2
#108Alpbach
Austria · Mountain
5
Excellent
PM2.5
2.1
PM10
3.2
NO2
1.2
O3
74.0
SO2
0.1
#109Caswell Bay
United Kingdom · Coastal
5
Excellent
PM2.5
2.8
PM10
10.8
NO2
0.8
O3
63.0
SO2
0.2
#110Chapel Porth
United Kingdom · Coastal
5
Excellent
PM2.5
3.2
PM10
7.1
NO2
0.8
O3
60.0
SO2
0.2
#111Constantine Bay
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
8.3
NO2
0.7
O3
62.0
SO2
0.2
#112Courchevel
France · Mountain
5
Excellent
PM2.5
2.3
PM10
2.7
NO2
0.5
O3
70.0
SO2
0.2
#113Crantock
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
6.3
NO2
1.0
O3
56.0
SO2
0.2
#114Easkey
Ireland · Coastal
5
Excellent
PM2.5
2.7
PM10
5.7
NO2
1.2
O3
59.0
SO2
0.2
#115Exe Estuary
United Kingdom · Coastal
5
Excellent
PM2.5
3.0
PM10
5.1
NO2
1.9
O3
55.0
SO2
0.2
#116La Plagne
France · Mountain
5
Excellent
PM2.5
2.5
PM10
3.1
NO2
0.6
O3
71.0
SO2
0.1
#117Folgaria
Italy · Mountain
5
Excellent
PM2.5
2.8
PM10
3.7
NO2
1.7
O3
75.0
SO2
0.1
#118Glencoe Mountain
United Kingdom · Mountain
5
Excellent
PM2.5
2.4
PM10
3.5
NO2
4.2
O3
47.0
SO2
0.2
#119Gwithian
United Kingdom · Coastal
5
Excellent
PM2.5
3.3
PM10
6.7
NO2
1.1
O3
56.0
SO2
0.2
#120Hafjell
Norway · Mountain
5
Excellent
PM2.5
2.2
PM10
3.2
NO2
4.5
O3
56.0
SO2
0.3
#121Harlyn Bay
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
8.3
NO2
0.7
O3
62.0
SO2
0.2
#122Hochzillertal-Kaltenbach
Austria · Mountain
5
Excellent
PM2.5
2.0
PM10
3.1
NO2
0.6
O3
75.0
SO2
0.1
#123Aarhus
Denmark · Coastal
5
Excellent
PM2.5
2.5
PM10
4.0
NO2
5.9
O3
54.0
SO2
0.5
#124Jasná
Slovakia · Mountain
5
Excellent
PM2.5
2.6
PM10
3.6
NO2
1.4
O3
62.0
SO2
0.2
#125Kitzbühel
Austria · Mountain
5
Excellent
PM2.5
2.6
PM10
4.2
NO2
1.4
O3
74.0
SO2
0.1
#126Kranjska Gora
Slovenia · Mountain
5
Excellent
PM2.5
2.4
PM10
3.3
NO2
0.9
O3
71.0
SO2
0.1
#127La Rosière
France · Mountain
5
Excellent
PM2.5
2.1
PM10
2.5
NO2
0.5
O3
71.0
SO2
0.1
#128Lacanau
France · Coastal
5
Excellent
PM2.5
2.8
PM10
7.0
NO2
0.3
O3
67.0
SO2
0.1
#129Arugam Bay
Sri Lanka · Coastal
5
Excellent
PM2.5
2.8
PM10
4.2
NO2
0.9
O3
66.0
SO2
0.3
#130Bull Bay
Jamaica · Coastal
5
Excellent
PM2.5
3.6
PM10
5.9
NO2
0.6
O3
50.0
SO2
0.8
#131San José del Cabo
Mexico · Coastal
5
Excellent
PM2.5
3.5
PM10
4.9
NO2
2.7
O3
36.0
SO2
0.6
#132Langland Bay
United Kingdom · Coastal
5
Excellent
PM2.5
2.8
PM10
10.8
NO2
0.8
O3
63.0
SO2
0.2
#133Les Deux Alpes
France · Mountain
5
Excellent
PM2.5
2.4
PM10
2.8
NO2
0.4
O3
66.0
SO2
1.0
#134Lusty Glaze
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
6.5
NO2
1.0
O3
60.0
SO2
0.2
#135Outer Banks
United States · Coastal
5
Excellent
PM2.5
2.8
PM10
2.8
NO2
0.8
O3
68.0
SO2
0.7
#136Menai Strait
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
5.3
NO2
0.7
O3
57.0
SO2
0.1
#137Méribel
France · Mountain
5
Excellent
PM2.5
2.2
PM10
2.5
NO2
0.4
O3
72.0
SO2
0.2
#138Nazaré
Portugal · Coastal
5
Excellent
PM2.5
2.5
PM10
6.1
NO2
0.7
O3
76.0
SO2
0.4
#139Nevis Range
United Kingdom · Mountain
5
Excellent
PM2.5
2.5
PM10
4.0
NO2
4.1
O3
45.0
SO2
0.5
#140Newquay/Fistral
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
8.1
NO2
0.7
O3
62.0
SO2
0.2
#141Obertauern
Austria · Mountain
5
Excellent
PM2.5
2.3
PM10
3.9
NO2
0.7
O3
72.0
SO2
0.1
#142Pavones
Costa Rica · Coastal
5
Excellent
PM2.5
2.9
PM10
3.9
NO2
0.4
O3
51.0
SO2
0.3
#143Perranporth
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
6.3
NO2
1.0
O3
56.0
SO2
0.2
#144Pichilemu
Chile · Coastal
5
Excellent
PM2.5
2.8
PM10
3.0
NO2
1.3
O3
73.0
SO2
6.1
#145Polzeath
United Kingdom · Coastal
5
Excellent
PM2.5
3.1
PM10
6.8
NO2
1.0
O3
59.0
SO2
0.2
#146Porthmeor
United Kingdom · Coastal
5
Excellent
PM2.5
3.4
PM10
7.3
NO2
1.0
O3
59.0
SO2
0.2
#147Portrush
United Kingdom · Coastal
5
Excellent
PM2.5
3.7
PM10
6.3
NO2
2.9
O3
43.0
SO2
0.4
#148Punta de Mita
Mexico · Coastal
5
Excellent
PM2.5
2.5
PM10
3.2
NO2
2.9
O3
47.0
SO2
1.7
#149Putsborough
United Kingdom · Coastal
5
Excellent
PM2.5
2.7
PM10
10.7
NO2
0.4
O3
62.0
SO2
0.1
#150Rest Bay
United Kingdom · Coastal
5
Excellent
PM2.5
2.9
PM10
9.0
NO2
0.6
O3
62.0
SO2
0.1
#151Santa Teresa
Costa Rica · Coastal
5
Excellent
PM2.5
3.2
PM10
4.2
NO2
0.8
O3
65.0
SO2
1.5
#152Saunton Sands
United Kingdom · Coastal
5
Excellent
PM2.5
2.7
PM10
10.7
NO2
0.4
O3
62.0
SO2
0.1
#153Sayulita
Mexico · Coastal
5
Excellent
PM2.5
2.5
PM10
3.2
NO2
2.9
O3
47.0
SO2
1.7
#154Sennen Cove
United Kingdom · Coastal
5
Excellent
PM2.5
3.3
PM10
8.2
NO2
1.5
O3
55.0
SO2
0.3
#155Sierra Nevada
Spain · Mountain
5
Excellent
PM2.5
2.5
PM10
4.9
NO2
0.5
O3
74.0
SO2
0.4
#156Strandhill
Ireland · Coastal
5
Excellent
PM2.5
2.7
PM10
5.5
NO2
1.2
O3
59.0
SO2
0.2
#157Telluride
United States · Mountain
5
Excellent
PM2.5
1.3
PM10
2.8
NO2
0.5
O3
92.0
SO2
0.1
#158Tiree
United Kingdom · Coastal
5
Excellent
PM2.5
3.3
PM10
8.1
NO2
0.7
O3
50.0
SO2
0.1
#159Torres
Brazil · Coastal
5
Excellent
PM2.5
3.6
PM10
5.5
NO2
0.9
O3
57.0
SO2
0.2
#160Val di Fiemme
Italy · Mountain
5
Excellent
PM2.5
1.9
PM10
2.5
NO2
1.0
O3
78.0
SO2
0.2
#161Warth-Schröcken
Austria · Mountain
5
Excellent
PM2.5
2.3
PM10
2.8
NO2
0.4
O3
74.0
SO2
0.1
#162Whistler
Canada · Mountain
5
Excellent
PM2.5
2.0
PM10
2.0
NO2
7.4
O3
46.0
SO2
0.5
#163Widemouth Bay
United Kingdom · Coastal
5
Excellent
PM2.5
3.0
PM10
6.0
NO2
1.3
O3
57.0
SO2
0.1
#164Woolacombe
United Kingdom · Coastal
5
Excellent
PM2.5
2.7
PM10
10.7
NO2
0.4
O3
62.0
SO2
0.1
#165Madesimo
Italy · Mountain
5
Excellent
PM2.5
1.8
PM10
2.6
NO2
3.4
O3
73.0
SO2
0.1
#166Stubai Glacier
Austria · Mountain
5
Excellent
PM2.5
2.0
PM10
3.0
NO2
1.0
O3
72.0
SO2
0.1
#167Courmayeur
Italy · Mountain
5
Excellent
PM2.5
2.2
PM10
2.7
NO2
1.0
O3
73.0
SO2
0.1
#168Les Saisies
France · Mountain
5
Excellent
PM2.5
2.8
PM10
3.2
NO2
0.9
O3
72.0
SO2
0.1
#169Valloire
France · Mountain
5
Excellent
PM2.5
2.6
PM10
3.2
NO2
0.6
O3
80.0
SO2
3.2
#170Zell am See/Kaprun
Austria · Mountain
5
Excellent
PM2.5
2.0
PM10
2.9
NO2
1.0
O3
78.0
SO2
0.1
#171Mayrhofen
Austria · Mountain
5
Excellent
PM2.5
2.0
PM10
3.1
NO2
0.6
O3
75.0
SO2
0.1
#172Gstaad
Switzerland · Mountain
5
Excellent
PM2.5
3.0
PM10
4.5
NO2
0.6
O3
73.0
SO2
0.1
#173Les Menuires
France · Mountain
5
Excellent
PM2.5
2.2
PM10
2.5
NO2
0.4
O3
72.0
SO2
0.2
#174Schladming-Dachstein
Austria · Mountain
5
Excellent
PM2.5
2.3
PM10
3.3
NO2
0.7
O3
72.0
SO2
0.1
#175Morzine
France · Mountain
5
Excellent
PM2.5
2.7
PM10
3.2
NO2
0.6
O3
72.0
SO2
0.1
#176Falls Creek
Australia · Mountain
5
Excellent
PM2.5
3.1
PM10
3.9
NO2
4.2
O3
31.0
SO2
0.6
#177Mt. Buller
Australia · Mountain
5
Excellent
PM2.5
3.3
PM10
4.7
NO2
3.3
O3
26.0
SO2
0.3
#178Garmisch-Partenkirchen
Germany · Mountain
5
Excellent
PM2.5
2.5
PM10
3.4
NO2
1.2
O3
75.0
SO2
0.1
#179Oberstdorf/Nebelhorn
Germany · Mountain
5
Excellent
PM2.5
2.6
PM10
3.4
NO2
0.6
O3
73.0
SO2
0.1
#180Santa Cruz
Portugal · Coastal
5
Excellent
PM2.5
2.5
PM10
6.2
NO2
0.6
O3
80.0
SO2
0.2
#181Lanuza
Philippines · Coastal
5
Excellent
PM2.5
3.7
PM10
3.8
NO2
4.2
O3
14.0
SO2
0.8
#182Playa Grande
Costa Rica · Coastal
5
Excellent
PM2.5
3.0
PM10
4.0
NO2
0.8
O3
53.0
SO2
0.6
#183Nosara
Costa Rica · Coastal
5
Excellent
PM2.5
3.6
PM10
4.3
NO2
1.0
O3
61.0
SO2
1.2
#184Maresias
Brazil · Coastal
5
Excellent
PM2.5
2.5
PM10
2.9
NO2
0.7
O3
90.0
SO2
0.8
#185Santa Catalina
Panama · Coastal
5
Excellent
PM2.5
2.5
PM10
3.2
NO2
0.5
O3
63.0
SO2
0.2
#186Narvikfjellet
Norway · Mountain
5
Excellent
PM2.5
1.8
PM10
3.1
NO2
1.9
O3
75.0
SO2
0.3
#187Cerro Castor
Argentina · Mountain
5
Excellent
PM2.5
3.1
PM10
4.5
NO2
0.2
O3
49.0
SO2
0.0
#188Mount Parnassos
Greece · Mountain
5
Excellent
PM2.5
2.6
PM10
3.2
NO2
1.1
O3
68.0
SO2
0.5
#189Les Contamines-Montjoie
France · Mountain
6
Excellent
PM2.5
3.4
PM10
4.3
NO2
1.1
O3
70.0
SO2
0.2
#190Špindlerův Mlýn
Czech Republic · Mountain
6
Excellent
PM2.5
3.7
PM10
4.8
NO2
2.6
O3
57.0
SO2
0.8
#191The Lecht
United Kingdom · Mountain
6
Excellent
PM2.5
3.9
PM10
4.8
NO2
2.9
O3
49.0
SO2
0.1
#192Bansko
Bulgaria · Mountain
6
Excellent
PM2.5
4.9
PM10
5.2
NO2
2.2
O3
48.0
SO2
1.2
#193Le Grand-Bornand
France · Mountain
6
Excellent
PM2.5
3.8
PM10
4.6
NO2
1.0
O3
74.0
SO2
0.2
#194Kolašin 1600
Montenegro · Mountain
6
Excellent
PM2.5
4.2
PM10
5.3
NO2
0.7
O3
70.0
SO2
2.0
#195Białka Tatrzańska
Poland · Mountain
6
Excellent
PM2.5
4.1
PM10
5.3
NO2
2.1
O3
62.0
SO2
0.6
#196Bantham
United Kingdom · Coastal
6
Excellent
PM2.5
3.6
PM10
8.6
NO2
2.4
O3
52.0
SO2
0.2
#197Bigbury-on-Sea
United Kingdom · Coastal
6
Excellent
PM2.5
3.6
PM10
8.6
NO2
2.4
O3
52.0
SO2
0.2
#198Bracklesham Bay
United Kingdom · Coastal
6
Excellent
PM2.5
2.9
PM10
7.3
NO2
5.9
O3
58.0
SO2
0.1
#199Châtel
France · Mountain
6
Excellent
PM2.5
3.3
PM10
4.5
NO2
1.1
O3
75.0
SO2
0.1
#200Chichester Harbour
United Kingdom · Coastal
6
Excellent
PM2.5
2.9
PM10
7.3
NO2
5.9
O3
58.0
SO2
0.1
#201Dun Laoghaire
Ireland · Coastal
6
Excellent
PM2.5
3.6
PM10
6.4
NO2
2.5
O3
55.0
SO2
0.5
#202Fornells Bay
Spain · Coastal
6
Excellent
PM2.5
3.0
PM10
7.0
NO2
0.4
O3
76.0
SO2
0.1
#203Freshwater West
United Kingdom · Coastal
6
Excellent
PM2.5
3.6
PM10
13.1
NO2
1.8
O3
61.0
SO2
1.0
#204Les Gets
France · Mountain
6
Excellent
PM2.5
3.8
PM10
4.8
NO2
0.9
O3
70.0
SO2
0.1
#205Le Moule
Guadeloupe · Coastal
6
Excellent
PM2.5
6.2
PM10
10.9
NO2
0.1
O3
35.0
SO2
0.3
#206Praia do Guincho
Portugal · Coastal
6
Excellent
PM2.5
3.1
PM10
5.4
NO2
1.3
O3
80.0
SO2
0.3
#207Hayling Island
United Kingdom · Coastal
6
Excellent
PM2.5
3.1
PM10
8.0
NO2
7.2
O3
57.0
SO2
0.2
#208Hookipa
United States · Coastal
6
Excellent
PM2.5
4.3
PM10
7.3
NO2
0.8
O3
46.0
SO2
0.3
#209Annapolis
United States · Coastal
6
Excellent
PM2.5
2.8
PM10
3.0
NO2
4.7
O3
64.0
SO2
1.4
#210Jaws/Pe'ahi
United States · Coastal
6
Excellent
PM2.5
4.3
PM10
7.3
NO2
0.8
O3
46.0
SO2
0.3
#211Kiel
Germany · Coastal
6
Excellent
PM2.5
2.3
PM10
3.4
NO2
8.6
O3
57.0
SO2
0.5
#212Carcavelos
Portugal · Coastal
6
Excellent
PM2.5
2.9
PM10
6.3
NO2
1.9
O3
81.0
SO2
0.6
#213Avoca Beach
Australia · Coastal
6
Excellent
PM2.5
3.7
PM10
6.7
NO2
4.9
O3
55.0
SO2
2.5
#214La Union (San Juan)
Philippines · Coastal
6
Excellent
PM2.5
3.7
PM10
3.7
NO2
3.3
O3
50.0
SO2
1.8
#215Lake Garda
Italy · Coastal
6
Excellent
PM2.5
3.2
PM10
4.4
NO2
4.0
O3
78.0
SO2
0.1
#216Arrifana
Portugal · Coastal
6
Excellent
PM2.5
3.0
PM10
6.0
NO2
0.5
O3
76.0
SO2
0.5
#217Largs
United Kingdom · Coastal
6
Excellent
PM2.5
3.1
PM10
5.0
NO2
4.9
O3
48.0
SO2
0.2
#218Les Houches
France · Mountain
6
Excellent
PM2.5
3.4
PM10
4.3
NO2
1.1
O3
70.0
SO2
0.2
#219Llandegfedd Reservoir
United Kingdom · Coastal
6
Excellent
PM2.5
4.0
PM10
6.3
NO2
2.5
O3
51.0
SO2
0.4
#220Llangennith
United Kingdom · Coastal
6
Excellent
PM2.5
3.3
PM10
11.3
NO2
0.6
O3
60.0
SO2
0.1
#221Mount Maunganui
New Zealand · Coastal
6
Excellent
PM2.5
4.9
PM10
6.0
NO2
5.9
O3
15.0
SO2
0.1
#222Baleal
Portugal · Coastal
6
Excellent
PM2.5
2.9
PM10
6.3
NO2
0.8
O3
78.0
SO2
0.3
#223Megève
France · Mountain
6
Excellent
PM2.5
3.5
PM10
4.6
NO2
1.1
O3
72.0
SO2
0.2
#224Barra de la Cruz
Mexico · Coastal
6
Excellent
PM2.5
4.7
PM10
5.6
NO2
0.9
O3
54.0
SO2
0.4
#225Brimms Ness
United Kingdom · Coastal
6
Excellent
PM2.5
3.6
PM10
6.5
NO2
2.5
O3
57.0
SO2
0.2
#226Mont-Sainte-Anne
Canada · Mountain
6
Excellent
PM2.5
3.4
PM10
3.4
NO2
4.4
O3
58.0
SO2
1.3
#227Newgale
United Kingdom · Coastal
6
Excellent
PM2.5
3.8
PM10
11.9
NO2
1.0
O3
60.0
SO2
0.3
#228Peniche/Supertubos
Portugal · Coastal
6
Excellent
PM2.5
2.9
PM10
6.3
NO2
0.8
O3
78.0
SO2
0.3
#229Porthleven
United Kingdom · Coastal
6
Excellent
PM2.5
3.4
PM10
9.3
NO2
1.5
O3
56.0
SO2
0.2
#230Praa Sands
United Kingdom · Coastal
6
Excellent
PM2.5
3.4
PM10
9.3
NO2
1.5
O3
56.0
SO2
0.2
#231Pwllheli
United Kingdom · Coastal
6
Excellent
PM2.5
3.3
PM10
11.6
NO2
0.5
O3
62.0
SO2
0.1
#232Saint-Gervais
France · Mountain
6
Excellent
PM2.5
3.4
PM10
4.3
NO2
1.1
O3
70.0
SO2
0.2
#233Sinaia
Romania · Mountain
6
Excellent
PM2.5
3.4
PM10
3.7
NO2
4.7
O3
56.0
SO2
0.1
#234Snowbasin
United States · Mountain
6
Excellent
PM2.5
3.0
PM10
3.8
NO2
3.8
O3
70.0
SO2
0.3
#235Snowbird
United States · Mountain
6
Excellent
PM2.5
3.1
PM10
4.0
NO2
3.6
O3
78.0
SO2
0.2
#236Tramore
Ireland · Coastal
6
Excellent
PM2.5
3.7
PM10
12.7
NO2
0.4
O3
64.0
SO2
0.1
#237Mont Tremblant
Canada · Mountain
6
Excellent
PM2.5
4.3
PM10
4.3
NO2
1.1
O3
61.0
SO2
0.9
#238Weymouth & Portland
United Kingdom · Coastal
6
Excellent
PM2.5
4.1
PM10
9.1
NO2
3.6
O3
55.0
SO2
0.2
#239Whitesands Bay
United Kingdom · Coastal
6
Excellent
PM2.5
3.7
PM10
14.4
NO2
0.7
O3
62.0
SO2
0.2
#240Zakopane/Kasprowy Wierch
Poland · Mountain
6
Excellent
PM2.5
4.0
PM10
5.1
NO2
1.5
O3
62.0
SO2
0.5
#241SkiWelt Wilder Kaiser
Austria · Mountain
6
Excellent
PM2.5
3.1
PM10
4.8
NO2
1.8
O3
73.0
SO2
0.1
#242Villars-Gryon
Switzerland · Mountain
6
Excellent
PM2.5
3.9
PM10
5.4
NO2
1.2
O3
73.0
SO2
0.1
#243Flaine
France · Mountain
6
Excellent
PM2.5
4.1
PM10
5.6
NO2
1.2
O3
71.0
SO2
0.2
#244Inch Beach
Ireland · Coastal
6
Excellent
PM2.5
3.8
PM10
9.0
NO2
0.5
O3
53.0
SO2
0.0
#245Praia do Amado
Portugal · Coastal
6
Excellent
PM2.5
3.0
PM10
7.7
NO2
0.5
O3
82.0
SO2
0.4
#246Popoyo
Nicaragua · Coastal
6
Excellent
PM2.5
5.0
PM10
7.1
NO2
0.7
O3
43.0
SO2
5.3
#247Lagos
Portugal · Coastal
6
Excellent
PM2.5
3.1
PM10
5.7
NO2
0.7
O3
78.0
SO2
0.6
#248Manorbier
United Kingdom · Coastal
6
Excellent
PM2.5
3.5
PM10
13.3
NO2
0.6
O3
61.0
SO2
0.1
#249Machrihanish
United Kingdom · Coastal
6
Excellent
PM2.5
3.6
PM10
7.3
NO2
4.9
O3
51.0
SO2
0.3
#250Elands Bay
South Africa · Coastal
6
Excellent
PM2.5
4.1
PM10
6.2
NO2
0.5
O3
55.0
SO2
0.5
#251Alta
United States · Mountain
6
Excellent
PM2.5
3.1
PM10
4.0
NO2
3.6
O3
78.0
SO2
0.2
#252Gudauri
Georgia · Mountain
6
Excellent
PM2.5
3.9
PM10
4.6
NO2
1.5
O3
70.0
SO2
0.4
#253Corralco
Chile · Mountain
6
Excellent
PM2.5
3.4
PM10
3.9
NO2
0.2
O3
90.0
SO2
1.4
#254Glenshee
United Kingdom · Mountain
7
Excellent
PM2.5
4.9
PM10
6.4
NO2
4.5
O3
46.0
SO2
0.2
#255Loon Mountain
United States · Mountain
7
Excellent
PM2.5
4.7
PM10
4.8
NO2
1.2
O3
80.0
SO2
0.3
#256Poiana Brașov
Romania · Mountain
7
Excellent
PM2.5
5.4
PM10
6.2
NO2
4.5
O3
55.0
SO2
0.4
#257Solitude
United States · Mountain
7
Excellent
PM2.5
3.9
PM10
4.7
NO2
3.4
O3
76.0
SO2
0.2
#258Sugarloaf
United States · Mountain
7
Excellent
PM2.5
4.7
PM10
4.8
NO2
1.2
O3
76.0
SO2
1.1
#259Burnham-on-Crouch
United Kingdom · Coastal
7
Excellent
PM2.5
4.0
PM10
7.6
NO2
4.4
O3
59.0
SO2
0.3
#260Belmont
Australia · Coastal
7
Excellent
PM2.5
4.6
PM10
5.5
NO2
5.8
O3
51.0
SO2
1.9
#261Borovets
Bulgaria · Mountain
7
Excellent
PM2.5
6.2
PM10
7.1
NO2
1.5
O3
55.0
SO2
0.9
#262Anglet
France · Coastal
7
Excellent
PM2.5
5.1
PM10
8.3
NO2
2.3
O3
73.0
SO2
1.6
#263Capbreton
France · Coastal
7
Excellent
PM2.5
4.8
PM10
7.7
NO2
1.7
O3
71.0
SO2
1.6
#264Carsington Water
United Kingdom · Coastal
7
Excellent
PM2.5
4.6
PM10
7.3
NO2
9.0
O3
44.0
SO2
0.5
#265Cloudbreak
Fiji · Coastal
7
Excellent
PM2.5
6.2
PM10
9.8
NO2
0.8
O3
57.0
SO2
0.9
#266Deba
Spain · Coastal
7
Excellent
PM2.5
5.1
PM10
6.5
NO2
1.8
O3
72.0
SO2
2.0
#267Deer Valley
United States · Mountain
7
Excellent
PM2.5
3.9
PM10
4.7
NO2
3.4
O3
76.0
SO2
0.2
#268Filey
United Kingdom · Coastal
7
Excellent
PM2.5
4.6
PM10
7.9
NO2
6.0
O3
58.0
SO2
0.6
#269Garopaba
Brazil · Coastal
7
Excellent
PM2.5
5.3
PM10
7.5
NO2
1.6
O3
56.0
SO2
6.6
#270Jay Peak
United States · Mountain
7
Excellent
PM2.5
5.0
PM10
5.2
NO2
1.6
O3
70.0
SO2
0.4
#271Newport
United States · Coastal
7
Excellent
PM2.5
4.6
PM10
5.4
NO2
5.5
O3
75.0
SO2
0.7
#272Compton Bay
United Kingdom · Coastal
7
Excellent
PM2.5
3.5
PM10
8.1
NO2
6.1
O3
58.0
SO2
0.2
#273La Gravière
France · Coastal
7
Excellent
PM2.5
4.8
PM10
7.7
NO2
1.7
O3
71.0
SO2
1.6
#274La Rochelle
France · Coastal
7
Excellent
PM2.5
4.2
PM10
12.7
NO2
2.0
O3
73.0
SO2
0.2
#275Biarritz
France · Coastal
7
Excellent
PM2.5
4.7
PM10
7.1
NO2
3.3
O3
71.0
SO2
0.9
#276Anakao
Madagascar · Coastal
7
Excellent
PM2.5
5.2
PM10
7.4
NO2
0.5
O3
62.0
SO2
0.6
#277Laniakea
United States · Coastal
7
Excellent
PM2.5
6.0
PM10
10.4
NO2
0.2
O3
55.0
SO2
0.2
#278Les Cavaliers
France · Coastal
7
Excellent
PM2.5
4.8
PM10
7.7
NO2
1.7
O3
71.0
SO2
1.6
#279Bells Beach
Australia · Coastal
7
Excellent
PM2.5
6.5
PM10
10.8
NO2
1.3
O3
37.0
SO2
0.5
#280Máncora
Peru · Coastal
7
Excellent
PM2.5
6.3
PM10
10.2
NO2
0.4
O3
58.0
SO2
0.7
#281Margaret River
Australia · Coastal
7
Excellent
PM2.5
7.7
PM10
12.5
NO2
0.4
O3
37.0
SO2
0.1
#282Hossegor
France · Coastal
7
Excellent
PM2.5
4.8
PM10
7.7
NO2
1.7
O3
71.0
SO2
1.6
#283Narrabeen
Australia · Coastal
7
Excellent
PM2.5
4.2
PM10
5.6
NO2
10.5
O3
33.0
SO2
3.5
#284New Smyrna Beach
United States · Coastal
7
Excellent
PM2.5
4.3
PM10
5.5
NO2
1.0
O3
96.0
SO2
0.7
#285Oukaïmeden
Morocco · Mountain
7
Excellent
PM2.5
6.4
PM10
7.2
NO2
0.3
O3
67.0
SO2
0.7
#286Palma de Mallorca
Spain · Coastal
7
Excellent
PM2.5
4.0
PM10
5.5
NO2
4.2
O3
91.0
SO2
0.8
#287Park City
United States · Mountain
7
Excellent
PM2.5
3.9
PM10
4.7
NO2
3.4
O3
76.0
SO2
0.2
#288Pascuales
Mexico · Coastal
7
Excellent
PM2.5
5.2
PM10
5.5
NO2
4.4
O3
44.0
SO2
0.7
#289Pipeline
United States · Coastal
7
Excellent
PM2.5
6.0
PM10
10.4
NO2
0.2
O3
55.0
SO2
0.2
#290Pitsford Water
United Kingdom · Coastal
7
Excellent
PM2.5
4.2
PM10
6.5
NO2
8.8
O3
46.0
SO2
0.5
#291Restaurants (Namotu)
Fiji · Coastal
7
Excellent
PM2.5
6.2
PM10
9.8
NO2
0.8
O3
57.0
SO2
0.9
#292Saint-Leu
Réunion · Coastal
7
Excellent
PM2.5
6.6
PM10
11.0
NO2
2.2
O3
40.0
SO2
1.0
#293Sandsend
United Kingdom · Coastal
7
Excellent
PM2.5
4.6
PM10
6.2
NO2
6.7
O3
51.0
SO2
0.7
#294Seignosse
France · Coastal
7
Excellent
PM2.5
4.8
PM10
7.7
NO2
1.7
O3
71.0
SO2
1.6
#295Somo
Spain · Coastal
7
Excellent
PM2.5
4.3
PM10
6.5
NO2
2.7
O3
68.0
SO2
2.0
#296Sugarbush
United States · Mountain
7
Excellent
PM2.5
4.4
PM10
4.5
NO2
1.8
O3
76.0
SO2
0.4
#297Sunday River
United States · Mountain
7
Excellent
PM2.5
4.4
PM10
4.6
NO2
0.6
O3
81.0
SO2
0.2
#298Sunset Beach
United States · Coastal
7
Excellent
PM2.5
6.0
PM10
10.4
NO2
0.2
O3
55.0
SO2
0.2
#299Ubatuba
Brazil · Coastal
7
Excellent
PM2.5
4.2
PM10
5.4
NO2
0.7
O3
93.0
SO2
0.8
#300Waimea Bay
United States · Coastal
7
Excellent
PM2.5
6.0
PM10
10.4
NO2
0.2
O3
55.0
SO2
0.2
#301Whitstable
United Kingdom · Coastal
7
Excellent
PM2.5
4.0
PM10
7.5
NO2
4.4
O3
60.0
SO2
0.2
#302Wrightsville Beach
United States · Coastal
7
Excellent
PM2.5
5.7
PM10
5.7
NO2
1.3
O3
70.0
SO2
0.9
#303Zarautz
Spain · Coastal
7
Excellent
PM2.5
5.4
PM10
6.9
NO2
2.6
O3
73.0
SO2
2.0
#304Killington
United States · Mountain
7
Excellent
PM2.5
4.6
PM10
4.8
NO2
1.7
O3
75.0
SO2
0.3
#305Mammoth Mountain
United States · Mountain
7
Excellent
PM2.5
3.6
PM10
14.2
NO2
1.3
O3
77.0
SO2
0.1
#306Reykjanes Peninsula
Iceland · Coastal
7
Excellent
PM2.5
4.2
PM10
17.7
NO2
0.2
O3
86.0
SO2
4.5
#307Guéthary
France · Coastal
7
Excellent
PM2.5
5.4
PM10
8.3
NO2
2.5
O3
71.0
SO2
1.1
#308Pantín
Spain · Coastal
7
Excellent
PM2.5
4.0
PM10
9.7
NO2
1.3
O3
77.0
SO2
0.2
#309Playa Hermosa
Costa Rica · Coastal
7
Excellent
PM2.5
5.0
PM10
6.1
NO2
1.6
O3
69.0
SO2
3.1
#310Tofo
Mozambique · Coastal
7
Excellent
PM2.5
7.0
PM10
11.9
NO2
0.1
O3
52.0
SO2
0.8
#311Lobitos
Peru · Coastal
7
Excellent
PM2.5
5.4
PM10
8.4
NO2
0.4
O3
57.0
SO2
0.7
#312Ponta Preta
Cape Verde · Coastal
7
Excellent
PM2.5
6.2
PM10
10.4
NO2
0.3
O3
60.0
SO2
0.3
#313RED Mountain
Canada · Mountain
7
Excellent
PM2.5
4.3
PM10
4.4
NO2
6.6
O3
51.0
SO2
0.9
#314Kimmeridge Bay
United Kingdom · Coastal
7
Excellent
PM2.5
4.7
PM10
7.9
NO2
4.8
O3
51.0
SO2
0.2
#315Auli
India · Mountain
8
Excellent
PM2.5
4.2
PM10
7.6
NO2
2.9
O3
102.0
SO2
0.7
#316Bathsheba
Barbados · Coastal
8
Excellent
PM2.5
8.9
PM10
14.8
NO2
0.6
O3
41.0
SO2
0.8
#317Cayton Bay
United Kingdom · Coastal
8
Excellent
PM2.5
5.0
PM10
6.9
NO2
7.6
O3
53.0
SO2
1.1
#318El Palmar
Spain · Coastal
8
Excellent
PM2.5
5.8
PM10
8.7
NO2
1.9
O3
82.0
SO2
1.2
#319Grafham Water
United Kingdom · Coastal
8
Excellent
PM2.5
4.7
PM10
7.4
NO2
9.9
O3
45.0
SO2
0.6
#320Hamble River
United Kingdom · Coastal
8
Excellent
PM2.5
4.0
PM10
8.4
NO2
12.9
O3
50.0
SO2
2.6
#321Jahorina
Bosnia and Herzegovina · Mountain
8
Excellent
PM2.5
6.7
PM10
8.9
NO2
0.9
O3
70.0
SO2
7.7
#322Auckland — Waitemata
New Zealand · Coastal
8
Excellent
PM2.5
7.5
PM10
10.8
NO2
6.3
O3
30.0
SO2
2.2
#323Joss Bay
United Kingdom · Coastal
8
Excellent
PM2.5
4.7
PM10
10.0
NO2
6.0
O3
65.0
SO2
0.3
#324Kopaonik
Serbia · Mountain
8
Excellent
PM2.5
6.7
PM10
9.4
NO2
2.0
O3
70.0
SO2
9.5
#325Lennox Head
Australia · Coastal
8
Excellent
PM2.5
8.5
PM10
10.9
NO2
3.3
O3
33.0
SO2
2.2
#326Noosa
Australia · Coastal
8
Excellent
PM2.5
8.2
PM10
11.4
NO2
1.3
O3
33.0
SO2
1.8
#327Cocoa Beach
United States · Coastal
8
Excellent
PM2.5
5.2
PM10
5.7
NO2
1.4
O3
100.0
SO2
0.9
#328Palisades Tahoe
United States · Mountain
8
Excellent
PM2.5
4.8
PM10
15.9
NO2
2.7
O3
84.0
SO2
0.9
#329Puerto Escondido
Mexico · Coastal
8
Excellent
PM2.5
6.9
PM10
7.1
NO2
2.3
O3
66.0
SO2
0.8
#330Rutland Water
United Kingdom · Coastal
8
Excellent
PM2.5
4.8
PM10
7.2
NO2
10.1
O3
44.0
SO2
0.6
#331Saltburn-by-the-Sea
United Kingdom · Coastal
8
Excellent
PM2.5
5.6
PM10
7.9
NO2
7.7
O3
51.0
SO2
0.5
#332Scarborough
United Kingdom · Coastal
8
Excellent
PM2.5
5.0
PM10
6.9
NO2
7.6
O3
53.0
SO2
1.1
#333Seaburn
United Kingdom · Coastal
8
Excellent
PM2.5
4.9
PM10
8.1
NO2
9.8
O3
47.0
SO2
0.6
#334Sopelana
Spain · Coastal
8
Excellent
PM2.5
6.2
PM10
8.4
NO2
5.0
O3
69.0
SO2
3.6
#335Teahupo'o
French Polynesia · Coastal
8
Excellent
PM2.5
7.5
PM10
13.1
NO2
0.1
O3
58.0
SO2
0.2
#336Tynemouth
United Kingdom · Coastal
8
Excellent
PM2.5
5.2
PM10
8.0
NO2
11.3
O3
44.0
SO2
0.7
#337Chamrousse
France · Mountain
8
Excellent
PM2.5
5.8
PM10
8.5
NO2
2.3
O3
73.0
SO2
0.6
#338Jeju Jungmun
South Korea · Coastal
8
Excellent
PM2.5
5.4
PM10
8.7
NO2
2.3
O3
88.0
SO2
2.0
#339Ichinomiya
Japan · Coastal
8
Excellent
PM2.5
5.1
PM10
8.1
NO2
5.3
O3
68.0
SO2
2.2
#340Tsurigasaki Beach
Japan · Coastal
8
Excellent
PM2.5
5.1
PM10
8.1
NO2
5.3
O3
68.0
SO2
2.2
#341Tamarin Bay
Mauritius · Coastal
8
Excellent
PM2.5
7.4
PM10
12.8
NO2
1.3
O3
42.0
SO2
1.2
#342Runswick Bay
United Kingdom · Coastal
8
Excellent
PM2.5
5.1
PM10
6.7
NO2
7.3
O3
52.0
SO2
0.5
#343Bakuriani
Georgia · Mountain
9
Excellent
PM2.5
8.3
PM10
13.5
NO2
1.5
O3
63.0
SO2
0.5
#344Furano
Japan · Mountain
9
Excellent
PM2.5
7.9
PM10
11.6
NO2
1.4
O3
66.0
SO2
0.6
#345Changbaishan/Wanda
China · Mountain
9
Excellent
PM2.5
6.6
PM10
8.4
NO2
1.6
O3
94.0
SO2
3.9
#346Angourie
Australia · Coastal
9
Excellent
PM2.5
9.2
PM10
10.8
NO2
2.9
O3
46.0
SO2
2.0
#347Columbia River Gorge
United States · Coastal
9
Excellent
PM2.5
8.2
PM10
8.4
NO2
10.5
O3
18.0
SO2
0.2
#348Fernando de Noronha
Brazil · Coastal
9
Excellent
PM2.5
10.5
PM10
17.9
NO2
0.0
O3
52.0
SO2
0.2
#349Hyères
France · Coastal
9
Excellent
PM2.5
6.6
PM10
10.3
NO2
2.0
O3
95.0
SO2
0.6
#350Getxo
Spain · Coastal
9
Excellent
PM2.5
6.4
PM10
8.8
NO2
7.9
O3
68.0
SO2
3.4
#351Chicama
Peru · Coastal
9
Excellent
PM2.5
9.9
PM10
17.6
NO2
0.4
O3
54.0
SO2
0.5
#352Medemblik
Netherlands · Coastal
9
Excellent
PM2.5
6.3
PM10
11.2
NO2
6.4
O3
76.0
SO2
0.3
#353Piha
New Zealand · Coastal
9
Excellent
PM2.5
9.1
PM10
14.1
NO2
3.2
O3
37.0
SO2
1.1
#354Mentawai Islands
Indonesia · Coastal
9
Excellent
PM2.5
8.1
PM10
9.6
NO2
0.3
O3
81.0
SO2
0.9
#355North Stradbroke Island
Australia · Coastal
9
Excellent
PM2.5
10.0
PM10
14.0
NO2
2.5
O3
38.0
SO2
1.6
#356San Sebastián
Spain · Coastal
9
Excellent
PM2.5
5.7
PM10
8.9
NO2
8.0
O3
69.0
SO2
2.5
#357Sandringham
Australia · Coastal
9
Excellent
PM2.5
7.9
PM10
12.0
NO2
7.4
O3
31.0
SO2
2.1
#358Taitung
Taiwan · Coastal
9
Excellent
PM2.5
7.0
PM10
9.8
NO2
5.7
O3
75.0
SO2
0.4
#359Tybee Island
United States · Coastal
9
Excellent
PM2.5
8.2
PM10
8.3
NO2
2.1
O3
74.0
SO2
1.1
#360Welsh Harp
United Kingdom · Coastal
9
Excellent
PM2.5
4.5
PM10
8.2
NO2
20.3
O3
37.0
SO2
1.2
#361Praia da Pipa
Brazil · Coastal
9
Excellent
PM2.5
8.2
PM10
12.7
NO2
0.6
O3
65.0
SO2
0.3
#362Huanchaco
Peru · Coastal
9
Excellent
PM2.5
8.5
PM10
15.1
NO2
1.3
O3
57.0
SO2
1.0
#363Troncones
Mexico · Coastal
9
Excellent
PM2.5
8.0
PM10
10.7
NO2
4.9
O3
58.0
SO2
14.7
#364Anchor Point
Morocco · Coastal
9
Excellent
PM2.5
8.1
PM10
13.3
NO2
0.6
O3
80.0
SO2
0.6
#365Las Leñas
Argentina · Mountain
10
Excellent
PM2.5
7.4
PM10
7.6
NO2
0.5
O3
121.0
SO2
1.8
#366Burleigh Heads
Australia · Coastal
10
Excellent
PM2.5
11.6
PM10
16.3
NO2
3.9
O3
34.0
SO2
2.1
#367Cannon Beach
United States · Coastal
10
Excellent
PM2.5
10.1
PM10
10.7
NO2
7.1
O3
30.0
SO2
0.9
#368El Sunzal
El Salvador · Coastal
10
Excellent
PM2.5
8.1
PM10
8.6
NO2
4.0
O3
79.0
SO2
3.9
#369El Tunco
El Salvador · Coastal
10
Excellent
PM2.5
8.1
PM10
8.6
NO2
4.0
O3
79.0
SO2
3.9
#370Erciyes
Turkey · Mountain
10
Excellent
PM2.5
10.9
PM10
14.0
NO2
0.4
O3
68.0
SO2
0.9
#371Portillo
Chile · Mountain
10
Excellent
PM2.5
8.9
PM10
9.5
NO2
0.4
O3
108.0
SO2
1.2
#372Florianópolis
Brazil · Coastal
10
Excellent
PM2.5
10.8
PM10
17.1
NO2
0.9
O3
71.0
SO2
1.4
#373Folly Beach
United States · Coastal
10
Excellent
PM2.5
10.5
PM10
10.6
NO2
2.6
O3
74.0
SO2
1.3
#374Imsouane
Morocco · Coastal
10
Excellent
PM2.5
9.9
PM10
16.0
NO2
0.4
O3
87.0
SO2
1.3
#375Kirra
Australia · Coastal
10
Excellent
PM2.5
11.6
PM10
16.3
NO2
3.9
O3
34.0
SO2
2.1
#376Itacaré
Brazil · Coastal
10
Excellent
PM2.5
12.0
PM10
20.3
NO2
0.1
O3
57.0
SO2
0.1
#377Hiriketiya
Sri Lanka · Coastal
10
Excellent
PM2.5
7.6
PM10
8.5
NO2
12.9
O3
46.0
SO2
1.2
#378Niijima
Japan · Coastal
10
Excellent
PM2.5
5.9
PM10
8.3
NO2
15.6
O3
56.0
SO2
5.6
#379Niseko
Japan · Mountain
10
Excellent
PM2.5
9.8
PM10
12.9
NO2
4.6
O3
70.0
SO2
0.3
#380Sidi Kaouki
Morocco · Coastal
10
Excellent
PM2.5
8.6
PM10
12.9
NO2
0.5
O3
89.0
SO2
2.8
#381Snapper Rocks
Australia · Coastal
10
Excellent
PM2.5
11.6
PM10
16.3
NO2
3.9
O3
34.0
SO2
2.1
#382Silver Star
Canada · Mountain
10
Excellent
PM2.5
8.9
PM10
8.9
NO2
11.1
O3
26.0
SO2
0.1
#383Salinas
Spain · Coastal
10
Excellent
PM2.5
6.0
PM10
8.6
NO2
13.0
O3
57.0
SO2
16.2
#384Popova Šapka
North Macedonia · Mountain
10
Excellent
PM2.5
8.7
PM10
11.0
NO2
3.6
O3
71.0
SO2
9.2
#385Palandöken
Turkey · Mountain
11
Excellent
PM2.5
13.4
PM10
15.4
NO2
2.9
O3
57.0
SO2
1.7
#386El Confital
Spain · Coastal
11
Excellent
PM2.5
11.0
PM10
18.1
NO2
0.7
O3
86.0
SO2
0.6
#387Gran Canaria/El Confital
Spain · Coastal
11
Excellent
PM2.5
11.0
PM10
18.1
NO2
0.7
O3
86.0
SO2
0.6
#388Biscayne Bay
United States · Coastal
11
Excellent
PM2.5
12.0
PM10
17.6
NO2
4.1
O3
52.0
SO2
1.2
#389Lake Ontario — Kingston
Canada · Coastal
11
Excellent
PM2.5
11.9
PM10
12.0
NO2
3.6
O3
52.0
SO2
1.8
#390Santa Cruz
United States · Coastal
11
Excellent
PM2.5
10.9
PM10
14.8
NO2
9.7
O3
45.0
SO2
0.5
#391Tenerife
Spain · Coastal
11
Excellent
PM2.5
11.2
PM10
17.5
NO2
0.8
O3
89.0
SO2
0.9
#392Pacific City
United States · Coastal
11
Excellent
PM2.5
12.9
PM10
15.7
NO2
3.9
O3
35.0
SO2
1.2
#393Shipwreck Bay
New Zealand · Coastal
11
Excellent
PM2.5
13.7
PM10
22.8
NO2
0.1
O3
45.0
SO2
0.4
#394Montañita
Ecuador · Coastal
11
Excellent
PM2.5
11.8
PM10
19.8
NO2
1.1
O3
58.0
SO2
0.9
#395Valle Nevado
Chile · Mountain
12
Excellent
PM2.5
11.0
PM10
11.5
NO2
0.6
O3
122.0
SO2
5.5
#396El Quemao
Spain · Coastal
12
Excellent
PM2.5
12.9
PM10
21.1
NO2
0.2
O3
90.0
SO2
0.3
#397Fuerteventura/Cotillo
Spain · Coastal
12
Excellent
PM2.5
13.0
PM10
21.3
NO2
0.3
O3
88.0
SO2
0.4
#398Huntington Beach
United States · Coastal
12
Excellent
PM2.5
11.5
PM10
18.5
NO2
5.6
O3
83.0
SO2
0.9
#399La Parva
Chile · Mountain
12
Excellent
PM2.5
11.0
PM10
11.5
NO2
0.6
O3
122.0
SO2
5.5
#400La Santa
Spain · Coastal
12
Excellent
PM2.5
12.9
PM10
21.1
NO2
0.2
O3
90.0
SO2
0.3
#401Lanzarote/Famara
Spain · Coastal
12
Excellent
PM2.5
12.9
PM10
21.1
NO2
0.2
O3
90.0
SO2
0.3
#402Mavericks
United States · Coastal
12
Excellent
PM2.5
9.8
PM10
13.4
NO2
15.8
O3
52.0
SO2
0.8
#403Miyazaki
Japan · Coastal
12
Excellent
PM2.5
9.7
PM10
13.7
NO2
1.8
O3
133.0
SO2
2.8
#404Tanegashima
Japan · Coastal
12
Excellent
PM2.5
9.7
PM10
14.0
NO2
0.5
O3
136.0
SO2
2.9
#405The Wedge
United States · Coastal
12
Excellent
PM2.5
11.5
PM10
18.5
NO2
5.6
O3
83.0
SO2
0.9
#406Trestles
United States · Coastal
12
Excellent
PM2.5
13.8
PM10
23.3
NO2
0.6
O3
87.0
SO2
0.4
#407Weligama
Sri Lanka · Coastal
12
Excellent
PM2.5
8.2
PM10
9.4
NO2
20.4
O3
60.0
SO2
2.3
#408Aganoa
Samoa · Coastal
12
Excellent
PM2.5
14.0
PM10
24.0
NO2
0.0
O3
62.0
SO2
0.1
#409Ocean Beach SF
United States · Coastal
12
Excellent
PM2.5
9.8
PM10
13.4
NO2
15.8
O3
52.0
SO2
0.8
#410Izu Peninsula
Japan · Coastal
12
Excellent
PM2.5
9.8
PM10
13.2
NO2
14.1
O3
67.0
SO2
8.0
#411Dungeons
South Africa · Coastal
13
Excellent
PM2.5
12.8
PM10
17.6
NO2
12.0
O3
54.0
SO2
7.5
#412Krui
Indonesia · Coastal
13
Excellent
PM2.5
15.0
PM10
21.0
NO2
0.6
O3
76.0
SO2
3.2
#413Muizenberg
South Africa · Coastal
13
Excellent
PM2.5
12.8
PM10
17.6
NO2
12.0
O3
54.0
SO2
7.5
#414Table Bay
South Africa · Coastal
13
Excellent
PM2.5
12.8
PM10
17.6
NO2
12.0
O3
54.0
SO2
7.5
#415Teine
Japan · Mountain
13
Excellent
PM2.5
13.6
PM10
17.7
NO2
9.7
O3
58.0
SO2
3.7
#416Nihiwatu
Indonesia · Coastal
13
Excellent
PM2.5
15.7
PM10
18.9
NO2
2.5
O3
61.0
SO2
1.1
#417Kovalam
India · Coastal
13
Excellent
PM2.5
11.8
PM10
13.8
NO2
4.6
O3
108.0
SO2
3.1
#418Kommetjie
South Africa · Coastal
13
Excellent
PM2.5
12.8
PM10
17.6
NO2
12.0
O3
54.0
SO2
7.5
#419Kuta Lombok
Indonesia · Coastal
13
Excellent
PM2.5
16.8
PM10
22.5
NO2
1.4
O3
60.0
SO2
0.7
#420Kartalkaya
Turkey · Mountain
13
Excellent
PM2.5
16.1
PM10
19.9
NO2
0.8
O3
68.0
SO2
1.0
#421Desert Point
Indonesia · Coastal
14
Excellent
PM2.5
17.9
PM10
23.2
NO2
2.3
O3
59.0
SO2
1.2
#422Bolinas
United States · Coastal
14
Excellent
PM2.5
15.0
PM10
19.8
NO2
11.2
O3
51.0
SO2
0.2
#423Uludağ
Turkey · Mountain
15
Excellent
PM2.5
15.4
PM10
19.9
NO2
14.4
O3
62.0
SO2
5.6
#424The Cedars
Lebanon · Mountain
15
Excellent
PM2.5
16.8
PM10
21.8
NO2
7.7
O3
70.0
SO2
9.0
#425Saquarema
Brazil · Coastal
15
Excellent
PM2.5
16.0
PM10
17.0
NO2
1.7
O3
154.0
SO2
4.0
#426Sydney Harbour
Australia · Coastal
15
Excellent
PM2.5
12.9
PM10
16.3
NO2
24.5
O3
23.0
SO2
6.0
#427Varkala
India · Coastal
15
Excellent
PM2.5
17.3
PM10
18.9
NO2
8.6
O3
78.0
SO2
4.0
#428Lakey Peak
Indonesia · Coastal
16
Excellent
PM2.5
21.8
PM10
24.4
NO2
10.5
O3
35.0
SO2
2.5
#429Shonan
Japan · Coastal
16
Excellent
PM2.5
10.9
PM10
13.6
NO2
28.6
O3
51.0
SO2
14.3
#430Hakuba
Japan · Mountain
17
Excellent
PM2.5
19.9
PM10
20.0
NO2
14.4
O3
49.0
SO2
3.3
#431Madarao
Japan · Mountain
17
Excellent
PM2.5
22.7
PM10
23.0
NO2
12.3
O3
47.0
SO2
2.6
#432Bingin
Indonesia · Coastal
17
Excellent
PM2.5
23.1
PM10
29.0
NO2
6.6
O3
51.0
SO2
1.9
#433Padang Padang
Indonesia · Coastal
17
Excellent
PM2.5
23.1
PM10
29.0
NO2
6.6
O3
51.0
SO2
1.9
#434Myoko Kogen
Japan · Mountain
17
Excellent
PM2.5
22.7
PM10
23.0
NO2
12.3
O3
47.0
SO2
2.6
#435Naeba
Japan · Mountain
17
Excellent
PM2.5
22.7
PM10
23.0
NO2
12.3
O3
47.0
SO2
2.6
#436Mirleft
Morocco · Coastal
18
Excellent
PM2.5
21.3
PM10
86.8
NO2
0.4
O3
89.0
SO2
1.4
#437San Francisco Bay
United States · Coastal
19
Excellent
PM2.5
21.8
PM10
26.3
NO2
24.3
O3
24.0
SO2
0.3
#438Medewi
Indonesia · Coastal
19
Excellent
PM2.5
26.8
PM10
30.2
NO2
14.4
O3
29.0
SO2
3.5
#439Vaal Dam
South Africa · Coastal
19
Excellent
PM2.5
17.8
PM10
17.9
NO2
8.9
O3
167.0
SO2
33.3
#440Cimaja
Indonesia · Coastal
19
Excellent
PM2.5
28.3
PM10
31.8
NO2
14.2
O3
15.0
SO2
1.7
#441Gulmarg
India · Mountain
20
Excellent
PM2.5
26.5
PM10
29.2
NO2
15.3
O3
46.0
SO2
2.0
#442Blacks Beach
United States · Coastal
20
Excellent
PM2.5
16.2
PM10
21.1
NO2
41.1
O3
21.0
SO2
1.5
#443Shiga Kogen
Japan · Mountain
21
Good
PM2.5
26.6
PM10
26.7
NO2
23.8
O3
36.0
SO2
4.5
#444Dakar Yoff
Senegal · Coastal
23
Good
PM2.5
37.0
PM10
65.0
NO2
0.8
O3
76.0
SO2
1.7
#445Ngor/Ouakam
Senegal · Coastal
23
Good
PM2.5
37.0
PM10
65.0
NO2
0.8
O3
76.0
SO2
1.7
#446Dizin
Iran · Mountain
26
Good
PM2.5
19.0
PM10
26.1
NO2
44.7
O3
134.0
SO2
29.9
#447Keramas
Indonesia · Coastal
26
Good
PM2.5
39.5
PM10
42.8
NO2
22.3
O3
27.0
SO2
5.3
#448Muju Deogyusan
South Korea · Mountain
26
Good
PM2.5
16.2
PM10
17.3
NO2
73.4
O3
7.0
SO2
4.8
#449Baisha Bay
Taiwan · Coastal
32
Good
PM2.5
35.0
PM10
40.9
NO2
50.9
O3
84.0
SO2
19.0

Health-weighted score from European AQI sub-indices via Open-Meteo. Last updated 12 October 2026 at 15:40

Frequently asked questions

How is the score calculated?

Each pollutant adds to the score independently based on its concentration relative to its WHO 2021 24-hour guideline and its long-term health impact. PM2.5 contributes the most (9 points at its WHO limit), followed by NO₂ (5), O₃ (3), PM10 (2), and SO₂ (1). PM2.5 and PM10 use a non-linear curve that is steeper at low concentrations, reflecting the GBD GEMM dose-response evidence. NO₂, O₃ and SO₂ scale linearly. All pollutants at their WHO limits totals 20, the Excellent boundary.

Why not use the standard European AQI?

The European AQI uses the single worst pollutant as the overall score. One elevated reading overrides everything else, which penalises mountain and coastal locations where ozone is naturally higher. It also uses older EU regulatory thresholds rather than the stricter WHO 2021 guidelines. Our additive model means every pollutant matters and more pollution always increases the score, with each pollutant contributing in proportion to its actual long-term health impact.

Where does the data come from?

Open-Meteo, which aggregates data from national air quality monitoring networks and atmospheric models. Readings are live and refreshed every 6 hours.

Why are mountain resorts generally cleaner?

Higher altitude means less traffic, no heavy industry and better atmospheric dispersion. Coastal spots benefit from onshore breezes that push pollutants inland. Both tend to score well compared to major cities.

What do PM2.5 and PM10 mean?

PM2.5 is particulate matter under 2.5 micrometres (fine particles from combustion, fires and exhaust). PM10 is under 10 micrometres (dust, pollen, construction). Both are measured in micrograms per cubic metre. The WHO guideline for PM2.5 is 15 µg/m³.

How does air quality affect outdoor sport?

During intense exercise you breathe 10 to 20 times more air than at rest. High PM2.5 can reduce lung function and trigger inflammation. For most people, a score under 40 poses negligible risk even during hard sessions.

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