Nagapattinam Air Quality Index (AQI) & Air Pollution Today

Tamil Nadu, India — Real-time Air Quality Index (AQI) and PM2.5

Nagapattinam AQI Right Now

22

Category: Good

Dominant Pollutant: pm10

PM2.5: 10.27 µg/m³

PM10: 22.17 µg/m³

Last updated: 2026-03-24 — Data source: Google Air Quality API (NAQI). Live NAQI values load when you visit the page.

Nagapattinam Pollutant Levels

PollutantConcentration
PM2.510.27 µg/m³
PM1022.17 µg/m³
O₃ (Ozone)29.44 µg/m³
NO₂11.3 µg/m³
SO₂1.8 µg/m³
CO257.43 µg/m³

Health Advisory — Nagapattinam

Good: Minimal impact on health. Great day to be outdoors!

Health Impact — Nagapattinam

Cigarette Equivalent: Breathing this air is equivalent to smoking 0.5 cigarettes per day (based on current PM2.5 levels).

Health Recommendations for Nagapattinam

  • General Population: Air quality is satisfactory. Enjoy outdoor activities.
  • Elderly: No special precautions needed.
  • Children: Great day for outdoor play.
  • Lung Disease Patients: No restrictions on outdoor activities.

Understanding Nagapattinam Air Quality

Nagapattinam's air quality is heavily influenced by its coastal location along the Bay of Bengal. From June to September, southwest monsoon winds bring sea breezes that help disperse pollutants, maintaining relatively clean air. However, the northeast monsoon from October to December brings rainfall and occasional cyclonic disturbances, which can trap pollutants near the surface during non-rainy periods.

Post-monsoon months (November through February) see the worst air quality as paddy farmers in the surrounding Cauvery Delta burn crop residues after the kuruvai and samba harvests. Port activities intensify during these dry months, with diesel-powered fishing trawlers and cargo handling equipment contributing to particulate matter levels. Marine salt spray and road dust from unpaved areas near the fishing harbor add to the particulate load.

Summer months from March to May bring hot, dry conditions with temperatures exceeding 35°C. Coastal sea breezes provide moderate relief during afternoons, but mornings can see elevated PM2.5 from smoke from fish-drying operations and domestic biomass burning. The city's reconstruction after the 2004 tsunami has led to increased construction activity, adding dust pollution during dry periods.

Primary Pollution Sources

  • Marine port emissions
  • Fishing industry
  • Crop residue burning
  • Diesel generators
  • Road dust

Geography: Coastal port city on the Bay of Bengal, major fishing hub in the Cauvery Delta region.

Peak pollution months: November, December, January, February

Frequently Asked Questions — Nagapattinam

Why is air quality worse in Nagapattinam during winter months?

Winter months coincide with paddy stubble burning in the Cauvery Delta after harvest season, and atmospheric conditions trap pollutants closer to the ground. Port and fishing activities also peak during the dry season.

Does living near the coast in Nagapattinam mean better air quality?

Coastal areas generally benefit from sea breezes that disperse pollutants, but areas near the fishing harbor and port experience elevated emissions from diesel engines and fish-processing activities.

Air Quality in Nearby Cities