Cherthala Air Quality Index (AQI) & Air Pollution Today

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

Cherthala AQI Right Now

69

Category: Satisfactory

Dominant Pollutant: pm10

PM2.5: 21.1 µg/m³

PM10: 68.07 µg/m³

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

Cherthala Pollutant Levels

PollutantConcentration
PM2.521.1 µg/m³
PM1068.07 µg/m³
O₃ (Ozone)30.08 µg/m³
NO₂8.67 µg/m³
SO₂0.92 µg/m³
CO801.74 µg/m³

Health Advisory — Cherthala

Satisfactory: Minor breathing discomfort to sensitive people.

Health Impact — Cherthala

Cigarette Equivalent: Breathing this air is equivalent to smoking 1 cigarettes per day (based on current PM2.5 levels).

Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.07 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).

Health Recommendations for Cherthala

  • General Population: Acceptable air quality. Unusually sensitive people should limit prolonged outdoor exertion.
  • Elderly: Minor breathing discomfort is possible.
  • Children: Should be fine outdoors with normal activities.
  • Lung Disease Patients: Consider reducing prolonged outdoor exertion.

Understanding Cherthala Air Quality

Cherthala, situated along Kerala's coastline in Alappuzha district, benefits from the natural air-cleaning power of Arabian Sea marine winds and Kerala's exceptional annual rainfall. The district's core industries - coir, backwater fishing, small industry - generate localised emissions, but Kerala's coastal and plantation landscape provides natural ventilation and moisture that limit pollutant accumulation.

During the dry summer months (March–May), when the northeast monsoon has retreated and the southwest monsoon has yet to arrive, reduced winds allow vehicle exhaust, coir processing dust, fishing harbour emissions to accumulate slightly. PM2.5 may reach 40–60 µg/m³ during this brief window. The sea breeze - particularly the strong onshore flow during the southwest monsoon (June–September) - effectively dilutes vehicle exhaust and dust emissions, keeping Cherthala's air quality significantly better than inland north Indian cities of comparable size.

The southwest monsoon (June–September), delivering 2,000–3,000 mm of rainfall across Alappuzha district, provides thorough ambient pollutant washout and is the cleanest air period. The northeast monsoon (October–December) brings another 400–600 mm, further maintaining good air quality into early winter. December through February offers crisp conditions with moderate humidity. Cherthala's proximity to the Vembanad Lake backwaters ensures that near-surface humidity remains relatively high even during dry spells, which helps suppress fine dust particles compared to arid climate cities.

Primary Pollution Sources

  • Vehicle exhaust
  • Coir processing dust
  • Fishing harbour emissions
  • Road dust
  • Waste burning
  • Small industry exhaust

Geography: Alappuzha district on Vembanad lake shoreline; coir weaving tradition; backwater fishing community; coastal strip

Peak pollution months: March, April, May

Frequently Asked Questions — Cherthala

What is the best time of year for air quality in Cherthala?

The southwest monsoon (June–September) delivers the best air quality in Cherthala, with heavy rainfall washing out all particulate matter and suppressing dust. The northeast monsoon (October–December) maintains good conditions into early winter. March and April mark the relatively higher-pollution summer period when vehicle exhaust and dust are at their seasonal peak, but even then Cherthala's AQI remains substantially better than Indo-Gangetic cities.

How do local industries in Cherthala affect its AQI?

Cherthala's main industries - coir, backwater fishing, small industry - contribute vehicle exhaust and related emissions, but Alappuzha district benefits from Kerala's consistent tropical rainfall (2,000+ mm/year) and sea or mountain breeze ventilation that limit industrial impact on citywide AQI. The district lacks the large-scale heavy industry found in north Indian cities, meaning that vehicle exhaust and road dust remain the dominant everyday pollution sources rather than industrial stack emissions.

Air Quality in Nearby Cities