Ranchi Air Quality Index (AQI) & Air Pollution Today

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

Ranchi AQI Right Now

115

Category: Moderate

Dominant Pollutant: pm10

PM2.5: 62.17 µg/m³

PM10: 121.34 µg/m³

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

Ranchi Pollutant Levels

PollutantConcentration
PM2.562.17 µg/m³
PM10121.34 µg/m³
O₃ (Ozone)35.87 µg/m³
NO₂7.7 µg/m³
SO₂2.09 µg/m³
CO275.76 µg/m³

Health Advisory — Ranchi

Moderate: Breathing discomfort to people with lungs, asthma and heart diseases.

Health Impact — Ranchi

Cigarette Equivalent: Breathing this air is equivalent to smoking 2.8 cigarettes per day (based on current PM2.5 levels).

Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.34 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).

Health Recommendations for Ranchi

  • General Population: People with respiratory or heart conditions should limit prolonged outdoor exertion.
  • Elderly: Reduce prolonged outdoor activities.
  • Children: Reduce prolonged outdoor play.
  • Lung Disease Patients: Avoid prolonged outdoor exertion.

Understanding Ranchi Air Quality

Ranchi, the capital of Jharkhand and historically known for its pleasant climate, sits atop the Chota Nagpur Plateau at approximately 650 metres elevation. This altitude historically made it a hill station retreat, but rapid urbanisation since Jharkhand's formation in 2000 has transformed the city and worsened its air quality. The Heavy Engineering Corporation (HEC) complex, a legacy public-sector heavy machinery manufacturer, adds to the industrial emission base.

Winter months (November–February) see the most significant AQI deterioration, with PM2.5 levels reaching 120–160 µg/m³. The plateau geography means cooler temperatures than lowland cities, creating strong nocturnal inversions that trap emissions in valleys between Ranchi's undulating terrain. Coal mining activity in the surrounding Ramgarh, Bokaro, and Hazaribagh belt generates fugitive dust and transport-related emissions on coal-laden trucks passing through or near the city.

The city's elevation provides meaningful advantages - stronger winds and better daytime mixing than Gangetic Plain cities keep peak pollution levels moderate by northern Indian standards. Ranchi receives good monsoon rainfall (~1,400 mm, June–September) that effectively cleanses the atmosphere, and the surrounding sal forest cover on the plateau provides natural filtration. The main challenges are localised: construction dust from rapid real-estate development, brick kiln clusters on the southern periphery, and an ageing vehicle fleet.

Primary Pollution Sources

  • Vehicle exhaust
  • Construction dust
  • Road dust
  • Industrial emissions (HEC, surrounding mining belt)
  • Domestic biomass burning
  • Brick kilns and stone crushing

Geography: Chota Nagpur Plateau at ~650 m elevation; forested terrain with mining hinterland, laterite soil, moderate climate moderated by altitude

Peak pollution months: November, December, January, February

Frequently Asked Questions — Ranchi

Does mining around Ranchi affect city air quality?

Yes - the Chota Nagpur Plateau is one of India's richest mineral belts. Coal mining in Ramgarh-Bokaro, iron ore in Singhbhum, and other mining activities generate fugitive dust and truck-related emissions that affect Ranchi's air, especially when winds carry dust from mining areas. However, the forested buffer between mines and city provides some filtration.

Is Ranchi's air quality better than other state capitals?

Yes - Ranchi's plateau elevation (~650 m), surrounding forest cover, and good monsoon rainfall give it better annual average AQI than most northern Indian state capitals. It is cleaner than Patna, Lucknow, or Raipur on an annual basis, though winter mornings can still hit Unhealthy levels.

Air Quality in Nearby Cities