Chromepet Air Quality Index (AQI) & Air Pollution Today

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

Chromepet AQI Right Now

79

Category: Satisfactory

Dominant Pollutant: pm10

PM2.5: 29.99 µg/m³

PM10: 78.26 µg/m³

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

Chromepet Pollutant Levels

PollutantConcentration
PM2.529.99 µg/m³
PM1078.26 µg/m³
O₃ (Ozone)2.04 µg/m³
NO₂10.1 µg/m³
SO₂1.68 µg/m³
CO456.48 µg/m³

Health Advisory — Chromepet

Satisfactory: Minor breathing discomfort to sensitive people.

Health Impact — Chromepet

Cigarette Equivalent: Breathing this air is equivalent to smoking 1.4 cigarettes per day (based on current PM2.5 levels).

Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.13 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).

Health Recommendations for Chromepet

  • 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 Chromepet Air Quality

Chromepet earned its name from the chromium-based leather tanning industry that once dominated this suburb, and though the sector has contracted, legacy tanneries still operate and emit chromium compounds, hydrogen sulfide, and other toxic chemicals into the air. Winter months (November-February) bring the worst air quality as atmospheric inversions trap these industrial emissions close to ground level, creating hazardous conditions for nearby residents. The characteristic odor of tannery operations-a mix of hydrogen sulfide and organic decomposition-becomes particularly noticeable during temperature inversions.

Beyond the tanneries, heavy vehicular traffic on the GST Road contributes significant PM2.5, NOₓ, and carbon monoxide. Industrial units processing leather and chemicals must handle volatile organic compounds (VOCs) and chromium dust, which can become airborne during material handling and processing. Occupational exposures in the tanning sector are well-documented health hazards, but residential populations also face elevated risks of respiratory and dermatological problems.

Summer months (April-June) see somewhat improved dispersion, but the heat intensifies odors from tannery wastewater and effluent storage. Construction dust from ongoing urbanization adds to the pollution burden year-round. Public health officials recommend avoiding prolonged outdoor exposure during pollution peaks and maintaining indoor air filtration, especially for vulnerable populations.

Primary Pollution Sources

  • Chrome tanning and leather processing emissions
  • Chromium and chemical fumes
  • Vehicle exhaust from GST Road
  • Industrial effluent evaporation
  • Construction dust

Geography: Southern Chennai suburb historically known for chrome tanning industries, positioned along the GST Road corridor with mixed industrial-residential character

Peak pollution months: November, December, January, February

Frequently Asked Questions — Chromepet

What specific pollutants are associated with Chromepet's tanning industry?

Chrome tanning operations emit chromium compounds (including hexavalent chromium), hydrogen sulfide gas, ammonia, volatile organic compounds, and various chemical fumes. These pose respiratory hazards and can have long-term health effects with chronic exposure.

Is it safe to live near tannery areas in Chromepet?

Residential areas near active tanneries face elevated health risks from air and water pollution. If living in these zones, use air purifiers indoors, avoid outdoor exercise during high pollution periods, and monitor AQI daily. Consider medical screening for respiratory and skin conditions.

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