Korba Air Quality Index (AQI) & Air Pollution Today

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

Korba AQI Right Now

99

Category: Satisfactory

Dominant Pollutant: pm10

PM2.5: 44.04 µg/m³

PM10: 98.79 µg/m³

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

Korba Pollutant Levels

PollutantConcentration
PM2.544.04 µg/m³
PM1098.79 µg/m³
O₃ (Ozone)4.3 µg/m³
NO₂9.3 µg/m³
SO₂59.77 µg/m³
CO355.37 µg/m³

Health Advisory — Korba

Satisfactory: Minor breathing discomfort to sensitive people.

Health Impact — Korba

Cigarette Equivalent: Breathing this air is equivalent to smoking 2 cigarettes per day (based on current PM2.5 levels).

Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.22 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).

Health Recommendations for Korba

  • 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 Korba Air Quality

Korba, often called India's power capital, hosts one of the densest clusters of coal-fired thermal power stations in the country. The NTPC Korba Super Thermal Power Station (2,600 MW), CSEB Hasdeo Thermal Power Station, and the BALCO aluminium smelter complex together create an industrial emission baseline that few Indian cities of comparable size can match. The surrounding Hasdeo coalfield - one of Chhattisgarh's richest - adds fugitive coal dust from open-cast mining operations, coal handling plants, and heavy truck traffic on mine-to-plant corridors.

Winter months (November–February) bring the worst air quality as temperature inversions trap power plant stack emissions, fly ash, and coal dust close to the ground across the Hasdeo valley. PM10 levels regularly exceed 200 µg/m³, with fly ash deposits visible on surfaces kilometres from the power plants. SO2 concentrations from coal combustion add to the pollution mix, creating a characteristic industrial haze that blankets the valley on calm winter mornings.

The monsoon season (June–September) provides significant relief with 1,300–1,500 mm of rainfall suppressing dust and diluting airborne pollutants. However, fly ash ponds and coal overburden dumps remain sources of wind-blown particulates even during drier months. The Hasdeo River, once the valley's lifeline, now receives thermal discharge and coal washery effluent, reflecting the environmental cost of Korba's role as a national energy hub.

Primary Pollution Sources

  • Thermal power plant emissions (NTPC, CSEB)
  • Coal mining dust
  • BALCO aluminium smelter emissions
  • Vehicle exhaust
  • Road dust
  • Fly ash from power plants

Geography: Hasdeo River valley in north-central Chhattisgarh; India's power capital with multiple thermal power stations, coal mines, and the BALCO aluminium complex

Peak pollution months: November, December, January, February

Frequently Asked Questions — Korba

Why is Korba called India's power capital?

Korba hosts multiple mega thermal power stations including NTPC Korba (2,600 MW), CSEB Hasdeo TPS, and the BALCO aluminium smelter with its captive power plant. Combined installed capacity exceeds 5,000 MW, making it one of India's largest power-generating clusters. This concentration of coal-fired generation is the primary driver of the city's air pollution.

How does coal mining affect Korba's air quality?

The Hasdeo coalfield surrounding Korba has extensive open-cast mines that generate fugitive dust from blasting, excavation, and coal transport. Thousands of coal trucks travel between mines and power plants daily, releasing coal dust along routes. Mine overburden dumps and coal stockpiles add wind-blown particulates, keeping PM10 elevated year-round.

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