Minerals provide raw materials for heavy industry, energy generation, construction, and infrastructure, contributing roughly 2% to national Gross Value Added (GVA). However, when extraction occurs in ecologically fragile zones without adequate environmental controls, mining can generate significant environmental and social hazards.

Why Mining is Considered an Environmental Hazard

• Large-Scale Deforestation and Habitat Fragmentation: Opencast pits and overburden dumps clear forests, fragment wildlife corridors, and reduce biodiversity in mining belts (e.g., central Indian forests and the Western Ghats).
• Acid Mine Drainage (AMD) & Water Contamination: Exposure of sulfide-bearing minerals to air and water creates acidic runoff that leaches heavy metals (arsenic, lead, cadmium) into regional streams and groundwater tables.
• Land Subsidence and Slope Instability: Unregulated underground excavation and illegal rat-hole mining weaken subsurface rock strata, causing sinkholes, structural collapses, and slope failures.
• Severe Air Pollution: Blasting, heavy transport, mineral crushing, and uncovered tailing dumps generate high volumes of airborne particulate matter ($PM_{2.5}$ and $PM_{10}$), contributing to respiratory illnesses among nearby communities.
• Riverbed Degradation from Illegal Sand Mining: Excessive extraction of riverbed sand alters river gradients, destabilizes bridges, increases riverbank erosion, and harms riparian aquatic ecosystems.
• Displacement of Forest-Dwelling Communities: Mining projects in Fifth Schedule areas often lead to displacement of tribal populations and disruption of customary forest rights.

Remedial Measures to Reduce Mining Hazards

• 1. Sustainable Mine Closure Frameworks:
  • Mandate comprehensive progressive and final mine closure plans in project approvals, requiring backfilling of mined pits, topsoil preservation, and ecological regreening.
  • Repurpose closed opencast mines into community solar installations, groundwater recharge reservoirs, or ecological parks.
• 2. Star Rating of Mines:
  • Implement the Ministry of Mines’ Star Rating System to evaluate mining leases on scientific excavation, dust suppression, water recycling, and environmental compliance.
• 3. Community Welfare via District Mineral Foundation (DMF):
  • Utilize statutory contributions under the Pradhan Mantri Khanij Kshetra Kalyan Yojana (PMKKKY) to fund drinking water, healthcare, school education, and pollution mitigation in mining-affected villages.
• 4. Promoting Alternatives to Riverbed Sand:
  • Enforce strict satellite and drone surveillance along river basins, while promoting the use of Manufactured Sand (M-Sand) derived from crushed rock aggregate to reduce riverbed exploitation.
• 5. Deploying Advanced Pollution Abatement:
  • Mandate dust mist-cannons, mechanized vacuum sweepers, covered conveyor belts, and real-time online effluent monitoring at all processing sites.
• 6. Scientific Mine Tailings Management:
  • Use dry-stack tailings, neutralize acidic wastewater through biological treatment wetlands, and utilize fly-ash and slag for mine backfilling.

Mineral development must balance economic needs with environmental stewardship. Adopting cleaner extraction technologies, progressive rehabilitation, and community safeguards is essential to make mining sustainable.