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Air quality basics

AQI, readings and what they mean.

102 answers

What is AQI?+

A single index summarising pollutant levels. Below 50 is good; above 150 is unhealthy for everyone.

Is indoor air really worse?+

Often, yes — indoor air can hold cooking smoke, dust and VOCs at higher concentrations than outside.

Why does my reading differ from the city AQI?+

City stations measure outdoor air at one point. Your room reflects your own sources, ventilation and filtration.

Where can I see live AQI here?+

The live AQI panel on this site shows readings for your location and major Indian cities.

What is the air like in Delhi?+

Delhi sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in New Delhi?+

New Delhi sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Noida?+

Noida sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Gurugram?+

Gurugram sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Ghaziabad?+

Ghaziabad sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Faridabad?+

Faridabad sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Mumbai?+

Mumbai sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Navi Mumbai?+

Navi Mumbai sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Thane?+

Thane sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Pune?+

Pune sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Bengaluru?+

Bengaluru sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Chennai?+

Chennai sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Hyderabad?+

Hyderabad sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Kolkata?+

Kolkata sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Ahmedabad?+

Ahmedabad sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Surat?+

Surat sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Jaipur?+

Jaipur sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Lucknow?+

Lucknow sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Kanpur?+

Kanpur sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Patna?+

Patna sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Ranchi?+

Ranchi sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Bhopal?+

Bhopal sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Indore?+

Indore sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Nagpur?+

Nagpur sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Chandigarh?+

Chandigarh sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Ludhiana?+

Ludhiana sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Amritsar?+

Amritsar sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Varanasi?+

Varanasi sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Agra?+

Agra sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Meerut?+

Meerut sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Kochi?+

Kochi sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Coimbatore?+

Coimbatore sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Visakhapatnam?+

Visakhapatnam sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Bhubaneswar?+

Bhubaneswar sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Guwahati?+

Guwahati sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

What is the air like in Dehradun?+

Dehradun sees seasonal swings — worst through winter and dust events, better after sustained rain. Check the live AQI page for the current reading.

Is PM2.5 counted in AQI?+

Yes, PM2.5 is one of the core AQI pollutants and usually the one driving high Indian readings.

Is PM10 counted in AQI?+

Yes, PM10 is one of the core AQI pollutants and usually the one driving high Indian readings.

Is ultrafine 0.3-micron particles counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but ultrafine 0.3-micron particles still affects the air you breathe indoors.

Is construction dust counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but construction dust still affects the air you breathe indoors.

Is road dust counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but road dust still affects the air you breathe indoors.

Is house dust counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but house dust still affects the air you breathe indoors.

Is dust-mite debris counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but dust-mite debris still affects the air you breathe indoors.

Is pollen counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but pollen still affects the air you breathe indoors.

Is mould spores counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but mould spores still affects the air you breathe indoors.

Is pet dander counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but pet dander still affects the air you breathe indoors.

Is pet hair counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but pet hair still affects the air you breathe indoors.

Is cooking smoke counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but cooking smoke still affects the air you breathe indoors.

Is deep-fry odours counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but deep-fry odours still affects the air you breathe indoors.

Is tadka smoke counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but tadka smoke still affects the air you breathe indoors.

Is incense smoke counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but incense smoke still affects the air you breathe indoors.

Is mosquito-coil smoke counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but mosquito-coil smoke still affects the air you breathe indoors.

Is candle soot counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but candle soot still affects the air you breathe indoors.

Is cigarette smoke counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but cigarette smoke still affects the air you breathe indoors.

Is vehicle exhaust counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but vehicle exhaust still affects the air you breathe indoors.

Is diesel soot counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but diesel soot still affects the air you breathe indoors.

Is industrial haze counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but industrial haze still affects the air you breathe indoors.

Is stubble-burning smoke counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but stubble-burning smoke still affects the air you breathe indoors.

Is firecracker smoke counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but firecracker smoke still affects the air you breathe indoors.

Is paint fumes counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but paint fumes still affects the air you breathe indoors.

Is new-furniture off-gassing counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but new-furniture off-gassing still affects the air you breathe indoors.

Is formaldehyde counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but formaldehyde still affects the air you breathe indoors.

Is cleaning-product fumes counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but cleaning-product fumes still affects the air you breathe indoors.

Is damp musty odours counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but damp musty odours still affects the air you breathe indoors.

Is garbage odours counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but garbage odours still affects the air you breathe indoors.

Is airborne droplets counted in AQI?+

Not directly — AQI tracks a fixed set of pollutants, but airborne droplets still affects the air you breathe indoors.

Does AQI change while sleeping?+

Indoor readings typically rise while sleeping, which is exactly when running a higher fan speed pays off.

Does AQI change while working from home?+

Indoor readings typically rise while working from home, which is exactly when running a higher fan speed pays off.

Does AQI change during online classes?+

Indoor readings typically rise during online classes, which is exactly when running a higher fan speed pays off.

Does AQI change while cooking?+

Indoor readings typically rise while cooking, which is exactly when running a higher fan speed pays off.

Does AQI change just after cooking?+

Indoor readings typically rise just after cooking, which is exactly when running a higher fan speed pays off.

Does AQI change during a party?+

Indoor readings typically rise during a party, which is exactly when running a higher fan speed pays off.

Does AQI change while painting a room?+

Indoor readings typically rise while painting a room, which is exactly when running a higher fan speed pays off.

Does AQI change during renovation?+

Indoor readings typically rise during renovation, which is exactly when running a higher fan speed pays off.

Does AQI change in monsoon humidity?+

Indoor readings typically rise in monsoon humidity, which is exactly when running a higher fan speed pays off.

Does AQI change during Diwali week?+

Indoor readings typically rise during Diwali week, which is exactly when running a higher fan speed pays off.

Does AQI change during winter smog?+

Indoor readings typically rise during winter smog, which is exactly when running a higher fan speed pays off.

Does AQI change on a high-AQI day?+

Indoor readings typically rise on a high-AQI day, which is exactly when running a higher fan speed pays off.

Does AQI change when windows must stay open?+

Indoor readings typically rise when windows must stay open, which is exactly when running a higher fan speed pays off.

Does AQI change in a ground-floor flat on a main road?+

Indoor readings typically rise in a ground-floor flat on a main road, which is exactly when running a higher fan speed pays off.

Does AQI change in a top-floor flat?+

Indoor readings typically rise in a top-floor flat, which is exactly when running a higher fan speed pays off.

Does AQI change in an old building?+

Indoor readings typically rise in an old building, which is exactly when running a higher fan speed pays off.

Does AQI change in a newly built flat?+

Indoor readings typically rise in a newly built flat, which is exactly when running a higher fan speed pays off.

Does AQI change with a pet cat?+

Indoor readings typically rise with a pet cat, which is exactly when running a higher fan speed pays off.

Does AQI change with a pet dog?+

Indoor readings typically rise with a pet dog, which is exactly when running a higher fan speed pays off.

Does AQI change with two pets?+

Indoor readings typically rise with two pets, which is exactly when running a higher fan speed pays off.

Does AQI change with a newborn at home?+

Indoor readings typically rise with a newborn at home, which is exactly when running a higher fan speed pays off.

Does AQI change with elderly parents at home?+

Indoor readings typically rise with elderly parents at home, which is exactly when running a higher fan speed pays off.

Does AQI change in a shared flat?+

Indoor readings typically rise in a shared flat, which is exactly when running a higher fan speed pays off.

Does AQI change in a PG room?+

Indoor readings typically rise in a PG room, which is exactly when running a higher fan speed pays off.

Does AQI change while moving between homes?+

Indoor readings typically rise while moving between homes, which is exactly when running a higher fan speed pays off.

Does AQI change during a house move?+

Indoor readings typically rise during a house move, which is exactly when running a higher fan speed pays off.

Does AQI change in a smoking household?+

Indoor readings typically rise in a smoking household, which is exactly when running a higher fan speed pays off.

Does AQI change near a construction site?+

Indoor readings typically rise near a construction site, which is exactly when running a higher fan speed pays off.

Does AQI change near a busy junction?+

Indoor readings typically rise near a busy junction, which is exactly when running a higher fan speed pays off.

Does AQI change near a garbage point?+

Indoor readings typically rise near a garbage point, which is exactly when running a higher fan speed pays off.

Does AQI change during pollen season?+

Indoor readings typically rise during pollen season, which is exactly when running a higher fan speed pays off.

Does AQI change during a dust storm?+

Indoor readings typically rise during a dust storm, which is exactly when running a higher fan speed pays off.