Compare Air Quality

Enter up to 4 cities to compare AQI side by side.

Separate city names with commas

Chongqing

PM2.595 µg/m³
PM1033 µg/m³
O₃11.8 ppm
NO₂17.4 ppb
SO₂4.1 ppb
CO10 ppm
Full details →

Chengdu

PM2.595 µg/m³
PM1033 µg/m³
O₃11.8 ppm
NO₂17.4 ppb
SO₂4.1 ppb
CO10 ppm
Full details →

Beijing

PM2.595 µg/m³
PM1034 µg/m³
O₃16.3 ppm
NO₂17 ppb
SO₂4.1 ppb
CO10 ppm
Full details →

Shanghai

PM2.595 µg/m³
PM1034 µg/m³
O₃16.3 ppm
NO₂17 ppb
SO₂4.1 ppb
CO10 ppm
Full details →

Cleanest air

Chongqing

AQI 95

Most polluted

Chongqing

AQI 95

Chongqing — Health Advice

Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

General Public: Air quality is acceptable for most people.
Children: Unusually sensitive children should limit prolonged outdoor play.
Heart Conditions: Unusually sensitive people should consider reducing exertion.

Chengdu — Health Advice

Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

General Public: Air quality is acceptable for most people.
Children: Unusually sensitive children should limit prolonged outdoor play.
Heart Conditions: Unusually sensitive people should consider reducing exertion.

Beijing — Health Advice

Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

General Public: Air quality is acceptable for most people.
Children: Unusually sensitive children should limit prolonged outdoor play.
Heart Conditions: Unusually sensitive people should consider reducing exertion.

Shanghai — Health Advice

Moderate

Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

General Public: Air quality is acceptable for most people.
Children: Unusually sensitive children should limit prolonged outdoor play.
Heart Conditions: Unusually sensitive people should consider reducing exertion.