Sonbhadra Air Quality Index (AQI) & Air Pollution Today

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

Sonbhadra AQI Right Now

94

Category: Satisfactory

Dominant Pollutant: pm10

PM2.5: 33.15 µg/m³

PM10: 93.6 µg/m³

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

Sonbhadra Pollutant Levels

PollutantConcentration
PM2.533.15 µg/m³
PM1093.6 µg/m³
O₃ (Ozone)5.65 µg/m³
NO₂18.79 µg/m³
SO₂13.85 µg/m³
CO438.41 µg/m³

Health Advisory — Sonbhadra

Satisfactory: Minor breathing discomfort to sensitive people.

Health Impact — Sonbhadra

Cigarette Equivalent: Breathing this air is equivalent to smoking 1.5 cigarettes per day (based on current PM2.5 levels).

Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.15 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).

Health Recommendations for Sonbhadra

  • 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 Sonbhadra Air Quality

Sonbhadra sits in one of Uttar Pradesh's most heavily industrialised zones - Sonbhadra district - where thermal power plants, mining operations, and allied industries create persistent air quality challenges year-round.

Unlike the seasonal agricultural pollution pattern of other UP cities, Sonbhadra's industrial emissions are constant: coal fly-ash from thermal power plant fly-ash, coal mining dust, plus vehicular and construction activity, maintain elevated PM2.5 even in the monsoon months when rainfall would otherwise clear the air. The Son River valley and its reservoir act as a pollution corridor for stack emissions during winter inversions.

Winter inversions (November–February) compound the industrial baseline: cold dense air traps fly-ash, SO₂, and NOₓ close to ground level, creating episodes where AQI exceeds 300 µg/m³. The Son River (Rihand reservoir) basin's flat terrain amplifies this trapping effect. Summers bring partial relief as convective mixing lifts the pollution layer, but Sonbhadra remains one of UP's most chronically polluted cities due to its industrial intensity.

Primary Pollution Sources

  • Thermal power plant fly-ash
  • Coal mining dust
  • Aluminium smelter fumes
  • Vehicle exhaust
  • Stone quarry dust
  • Road dust

Geography: India's energy capital district; 5 major power plants within 50km radius; Rihand Dam reservoir; NTPC Rihand, Obra, Anpara plants; Hindalco Renusagar

Peak pollution months: November, December, January, February

Frequently Asked Questions — Sonbhadra

When is air quality worst in Sonbhadra?

Air quality in Sonbhadra is at its worst during November through February, when winter temperature inversions over the Gangetic Plain trap emissions from thermal power plant fly-ash, coal mining dust, and biomass burning near the surface. The combination of post-kharif agricultural burning (October–November), brick kiln activation, and cold inversion episodes creates PM2.5 readings that frequently exceed 150 µg/m³ and sometimes approach 300 µg/m³ during the most severe episodes.

What are the main air pollution sources in Sonbhadra?

Sonbhadra's main pollution sources are: thermal power plant fly-ash, coal mining dust, aluminium smelter fumes, vehicle exhaust. Like most Uttar Pradesh cities, the seasonal pattern is defined by agricultural burning cycles (kharif in October–November, rabi in April–May), year-round brick kiln operations during the dry season (October–April), and persistent biomass burning for domestic energy. The coal power (multiple NTPC plants) activities add a distinctive industrial or agricultural dimension specific to Sonbhadra.

Air Quality in Nearby Cities