Question 1

What is the AQI in Salem today?

Accepted Answer

As of 2026-09-16T20:37:47.000Z, the Air Quality Index in Salem, Tamil Nadu is 29 on India's CPCB National AQI scale — category "Good". The dominant pollutant is Ozone, and PM2.5 measures 10 µg/m³ against the WHO 24-hour guideline of 15 µg/m³. Readings refresh every 15 minutes from OpenWeatherMap station data.

Question 2

Is the air in Salem safe to breathe right now?

Accepted Answer

Salem, Tamil Nadu is currently in the "Good" band at AQI 29 on India's CPCB scale. On that scale 0–50 is Good and 51–100 Satisfactory, both safe for everyone; 101–200 Moderate means people with asthma, or heart and lung conditions, should limit prolonged outdoor exertion; above 300 everyone should stay indoors and run an air purifier where possible.

Question 3

What is the PM2.5 level in Salem?

Accepted Answer

PM2.5 in Salem, Tamil Nadu currently measures 10 µg/m³. The WHO 24-hour guideline is 15 µg/m³ and India's national ambient standard is 60 µg/m³, so this reading is within both the WHO guideline and India's national standard. PM2.5 is fine particulate matter under 2.5 micrometres, small enough to reach deep into the lungs and cross into the bloodstream.

Question 4

What is the main air pollutant in Salem?

Accepted Answer

Ozone is currently driving the AQI in Salem, Tamil Nadu. The published index is the highest sub-index across all six tracked pollutants — PM2.5, PM10, ozone, NO₂, SO₂ and CO. PM2.5, fine particulate matter under 2.5 micrometres, is usually the driver in Indian cities, but dust as PM10 and summer ozone take over often enough to be worth checking.

Question 5

Is it safe to exercise outdoors in Salem?

Accepted Answer

On India's CPCB scale, outdoor exercise is fine for everyone below AQI 50. From 51–100 it is satisfactory, though sensitive groups should watch for symptoms. Above AQI 200 everyone should move workouts indoors. Salem, Tamil Nadu is at AQI 29 right now. Check the 4-day forecast on this page to find the cleanest window.

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