Air quality in Trichy
How bad is the air in Trichy?
Trichy’s 2025 average of AQI 62 is Satisfactory on the CPCB scale, and the median day was 58. 7 days crossed 100 (Moderate or worse) and 1 crossed 200 (Poor or worse).
The peak was AQI 318 on 17 March 2025. Coarse dust (PM10) set the index on 75% of days.
When Trichy’s air is worst
March is the worst month at a mean of AQI 78; April the cleanest at ~47. A dry-season peak — dust and dispersion, not the northern winter smog.
Plan around the profile, not the average: a purifier sized for March covers the rest of the year with headroom, and windows can be opened in April.
Pollution in Trichy: what drives it
Across Tamil Nadu, the usual drivers of poor air are vehicle exhaust, construction dust, industrial emissions and waste burning. CPCB bulletins name coarse dust (PM10) as the prominent pollutant on 75% of 2025's days.
- vehicle exhaust
- construction dust
- industrial emissions
- waste burning
How Trichy compares
Among the 62 cities we map, Trichy has the 6th lowest annual AQI, against a median of 94 across those cities.
Elsewhere in Tamil Nadu, Chennai averaged AQI 80, Coimbatore 70, Salem 65 and Madurai 50.
See the full ranking on the India Air Quality Index by city.
Do you need an air purifier in Trichy?
Verdict
Not essential — Trichy's outdoor air stayed Satisfactory most of the year.
Only 7 of 287 bulletin days went above Satisfactory. Indoor sources (cooking, incense, dust, a busy road outside) can still justify a purifier for a nursery or an allergy household, and sizing still matters — see the calculator.
What actually works
- Size by volume, not the box. Coverage claims assume ~2 air changes an hour; a March night wants 5.
- Bedroom first. Eight closed-door hours a night is where a purifier makes its measurable difference.
- Watch the live number. On Good and Satisfactory days, ventilate; on Poor days, close up and run the unit at the speed that delivers its CADR.
06 · The other half
Water in Trichy
Groundwater near Trichy averages ~1119 mg/L TDS on CGWB monitoring — high on the BIS scale. The same government-data report, for what you drink.
Air
AQI 62
Satisfactory
Water
1119 mg/L
TDS · High
Trichy air — questions
What is the AQI in Trichy today?
Today's figure comes from CPCB's live station feed and is shown at the top of this page, updated hourly when the feed is reachable. For context, Trichy averaged AQI 62 across 2025 and peaked at 318 on 17 March 2025, so a single day's reading should be judged against that range.
How bad is air pollution in Trichy?
Trichy's 2025 average of AQI 62 sits in CPCB's "Satisfactory" band. 1 day was Poor, Very Poor or Severe, and 280 days were Good or Satisfactory, out of 287 bulletin days.
Which month has the worst air quality in Trichy?
March, with a monthly average of AQI 78 in 2025. April was the cleanest at ~47. The pattern follows local weather and the drivers below rather than the North Indian winter smog.
Is the air in Trichy safe to breathe?
On average, yes: an annual AQI of 62 is within the "Satisfactory" band, where CPCB expects only minor discomfort for sensitive people. Individual days still crossed into Moderate or worse 7 times in 2025, so sensitive groups should watch the daily number.
Do I need an air purifier in Trichy?
Not essential — Trichy's outdoor air stayed Satisfactory most of the year. Only 7 of 287 bulletin days went above Satisfactory. Indoor sources (cooking, incense, dust, a busy road outside) can still justify a purifier for a nursery or an allergy household, and sizing still matters — see the calculator.
Where does Trichy's air pollution come from?
Across Tamil Nadu, the usual drivers of poor air are vehicle exhaust, construction dust, industrial emissions and waste burning. CPCB bulletins name coarse dust (PM10) as the prominent pollutant on 75% of 2025's days.
Where does this air quality data come from?
From the Central Pollution Control Board's daily AQI bulletin, published at 4 PM as a 24-hour average for each city with continuous monitoring stations. This page aggregates 287 bulletin days for Trichy in 2025, drawn from 1 station. The live figure uses the same CPCB station network through the Government of India's open-data feed.
Air quality in other cities
Data sources
- CPCB Daily AQI Bulletin (4 PM, 24-hour average), 2025 — city-level National AQI, prominent pollutant and station counts
- CPCB National Air Quality Index (2014) — six-band scale used for all categories
- NAAQS 2009 (24-hour PM2.5 60 µg/m³, PM10 100 µg/m³) — the concentrations that mark the Satisfactory/Moderate boundary
- Live readings: CPCB real-time station feed via data.gov.in, refreshed hourly.
Primary dataset: Central Pollution Control Board (CPCB) National Air Quality Index, Government of India.
Disclaimer: Figures are city-level averages of the CPCB daily AQI bulletin for the year shown and may differ from the air at your address, which depends on traffic, construction and the nearest station. This page is general information, not medical advice; for respiratory or cardiac conditions consult a qualified professional. Any purifier guidance is general sizing advice, not a product recommendation.