Every Indian mine operates under the National Ambient Air Quality Standards (NAAQS), 2009. Exceedances mean show-cause notices, stoppages, and community complaints.
The numbers that matter
- PM2.5: 60 µg/m³ (24-hour), 40 µg/m³ (annual)
- PM10: 100 µg/m³ (24-hour), 60 µg/m³ (annual)
- SO₂: 80 µg/m³ (24-hour); NO₂: 80 µg/m³ (24-hour)
Where mine dust comes from
- Haul roads — the single largest fugitive source
- Blasting — dust plumes that drift beyond the lease boundary
- Crushing and screening — point sources with high PM10 fractions
- Overburden dumps and stockpiles — wind erosion
Control measures that work
- Water sprinkling and chemical dust suppressants on haul roads
- Mist cannons at crushers and transfer points
- Blast design that minimises dust (correct stemming, delay timing)
- Green belts and windbreaks along the boundary
Monitoring is only half the job — prediction is the other half. Our AI digital twin forecasts PM2.5/PM10 before exceedances happen, so you act early instead of explaining late.