Krishnagiri Air Quality Index (AQI) & Air Pollution Today

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

Krishnagiri AQI Right Now

88

Category: Satisfactory

Dominant Pollutant: pm10

PM2.5: 50.74 µg/m³

PM10: 87.48 µg/m³

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

Krishnagiri Pollutant Levels

PollutantConcentration
PM2.550.74 µg/m³
PM1087.48 µg/m³
O₃ (Ozone)17.93 µg/m³
NO₂14.03 µg/m³
SO₂4.08 µg/m³
CO672.75 µg/m³

Health Advisory — Krishnagiri

Satisfactory: Minor breathing discomfort to sensitive people.

Health Impact — Krishnagiri

Cigarette Equivalent: Breathing this air is equivalent to smoking 2.3 cigarettes per day (based on current PM2.5 levels).

Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.26 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).

Health Recommendations for Krishnagiri

  • 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 Krishnagiri Air Quality

Krishnagiri's air quality is shaped by its dual identity as a granite extraction zone and agricultural trade center. The surrounding hills host numerous granite quarries whose blasting operations, stone cutting, and polishing activities generate significant dust emissions that drift into the urban area, particularly during dry months. The transport of granite blocks and finished products on heavy trucks adds to road dust and diesel emissions. The town's location on the busy NH-44 corridor means constant commercial vehicle traffic connecting Bangalore and Chennai, with diesel emissions contributing substantially to PM2.5 levels year-round.

Winter months bring the worst air quality as temperature inversions trap quarry dust, vehicle emissions, and smoke from biomass burning in surrounding villages. During the mango season from March to June, processing units operate intensively for pulp extraction, drying, and packaging, adding to local emissions through diesel generator use and truck traffic as produce heads to export markets. Summer heat mobilizes dust from quarry operations and dried-up water bodies around the reservoir area. The monsoons provide relief by settling dust and reducing quarrying activity, though humidity can create hazy conditions. The ongoing demand for granite in construction markets ensures year-round quarrying pressure on air quality.

Primary Pollution Sources

  • Granite quarrying and processing
  • Vehicular emissions on NH-44
  • Mango processing units
  • Construction dust
  • Diesel generators

Geography: District headquarters known as the mango capital of India, situated on the Bangalore-Chennai highway with significant granite quarrying and mango export industry.

Peak pollution months: November, December, January, February

Frequently Asked Questions — Krishnagiri

How do granite quarries affect Krishnagiri's air quality?

Granite quarrying involves rock blasting, heavy machinery operation, stone cutting, and polishing that generate substantial fugitive dust emissions, while transportation of granite on trucks adds road dust and diesel pollution.

Does mango processing impact Krishnagiri's air pollution?

During the mango season, processing units for pulp, juice, and dried fruit operate intensively, using diesel generators for power and creating truck traffic for transporting fresh and processed mangoes, contributing to seasonal emission spikes.

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