Air quality in Thrissur
How bad is the air in Thrissur?
Thrissur’s 2025 average of AQI 54 is Satisfactory on the CPCB scale, and the median day was 54. 0 days crossed 100 (Moderate or worse) and 0 crossed 200 (Poor or worse).
The peak was AQI 73 on 9 March 2025. Coarse dust (PM10) set the index on 82% of days.
When Thrissur’s air is worst
March is the worst month at a mean of AQI 64; June the cleanest at ~46. 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 June.
Pollution in Thrissur: what drives it
Across Kerala, the usual drivers of poor air are vehicle exhaust, construction dust and with monsoon washout and sea breeze keeping most months clean. CPCB bulletins name coarse dust (PM10) as the prominent pollutant on 82% of 2025's days.
- vehicle exhaust
- construction dust
- with monsoon washout and sea breeze keeping most months clean
How Thrissur compares
Among the 62 cities we map, Thrissur has the 4th lowest annual AQI, against a median of 94 across those cities.
Elsewhere in Kerala, Thiruvananthapuram averaged AQI 69.
See the full ranking on the India Air Quality Index by city.
Do you need an air purifier in Thrissur?
Verdict
Not essential — Thrissur's outdoor air stayed Satisfactory most of the year.
Only 0 of 314 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 Thrissur
Groundwater near Thrissur averages ~120 mg/L TDS on CGWB monitoring — excellent on the BIS scale. The same government-data report, for what you drink.
Air
AQI 54
Satisfactory
Water
120 mg/L
TDS · Excellent
Thrissur air — questions
What is the AQI in Thrissur 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, Thrissur averaged AQI 54 across 2025 and peaked at 73 on 9 March 2025, so a single day's reading should be judged against that range.
How bad is air pollution in Thrissur?
Thrissur's 2025 average of AQI 54 sits in CPCB's "Satisfactory" band. 0 days were Poor, Very Poor or Severe, and 314 days were Good or Satisfactory, out of 314 bulletin days.
Which month has the worst air quality in Thrissur?
March, with a monthly average of AQI 64 in 2025. June was the cleanest at ~46. The pattern follows local weather and the drivers below rather than the North Indian winter smog.
Is the air in Thrissur safe to breathe?
On average, yes: an annual AQI of 54 is within the "Satisfactory" band, where CPCB expects only minor discomfort for sensitive people. Individual days still crossed into Moderate or worse 0 times in 2025, so sensitive groups should watch the daily number.
Do I need an air purifier in Thrissur?
Not essential — Thrissur's outdoor air stayed Satisfactory most of the year. Only 0 of 314 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 Thrissur's air pollution come from?
Across Kerala, the usual drivers of poor air are vehicle exhaust, construction dust and with monsoon washout and sea breeze keeping most months clean. CPCB bulletins name coarse dust (PM10) as the prominent pollutant on 82% 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 314 bulletin days for Thrissur 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.