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Smog in Shanghai, China

Oceania

NO2 levels largely decreased over Australia and New Zealand, which is associated with environmental regulations on NOx emissions, such as from cars.  Large decreases occurred over many countries, such as the U.S., in Western Europe, and Japan, for the same reason.

City Country Region 2021 Average NO2 Change (%) Uncertainty (±%)
Adelaide

Australia

Oceania 1.014e+15 -29.7936 7.59
Auckland

New Zealand

Oceania 8.458e+14 -28.2548 7.95
Bayswater

Australia

Oceania 2.233e+15 -3.70568 10.54
Brisbane

Australia

Oceania 1.633e+15 -32.6780 5.47
Darwin

Australia

Oceania 7.185e+14 -13.8635 15.68
Hobart

Tasmania

Oceania 4.248e+14 -0.102607 11.39
Liddell

Australia

Oceania 2.304e+15 -11.1921 9.31
Loy Yang A

Australia

Oceania 2.063e+15 -40.3994 7.51
Melbourne

Australia

Oceania 2.151e+15 -46.3131 8.76
Perth

Australia

Oceania 1.102e+15 -19.7524 7.66
Sydney

Australia

Oceania 2.465e+15 -34.2222 5.62
Wellington

New Zealand

Oceania 6.839e+14 3.20903 8.38