OBRA Obra CSE LAB STUDY Mercury in humans (n=3) Average mercury level Obra township ‘s Minamata Blood: 27.38 ppb Dalla Hair: 2.673ppm Cement Sonbhadra Nail: 0.0026 ppm Factory Singrauli, the powerhouse of India Obra Dam with massive coal reserves and many Maximum mercury level Obra TPP thermal power plants, should have Blood: 29.92 ppb been prosperous. But it is poor and Hair: 6.85 ppm TELGUDWA polluted. People complain of unex- Nail: 0.026 ppm Mercury standard plained ailments. Non-profit Centre for Science and Environment decided Soil SAMPLES STANDARD SOURCE to investigate and found that mer- Mercury: 0.42 ppm cury, a deadly toxin in coal, is slowly Blood 5.8 ppb United States Environment Protection Agency (USEPA) entering people’s homes, food, water and even body. Hair 6.0 ppm Health Department, Canada

Nail no standard

Water 0.001 ppm Bureau of Indian Standard (BIS)

Effluent 0.01 ppm Environment Protection Act, 1986

Soil no standard

Methyl Mercury standard

Fish 0.25 ppm Food Safety and Standard Authority of India (FSSAI)

Dibulganj Mercury in humans (n=5) UTTAR PRADESH Renuka river Average mercury level Blood: 32.412 ppb Sonbhadra Hair: 16.758 ppm Singrauli Nail: 0.418 ppm Maximum mercury level Blood: 61.47 ppb Hair: 31.32 ppm Nail: 2.09 ppm Anpara Murdhawa nallah Drinking water Soil Mercury : 0.026 ppm Mercury: 1.64 ppm Renukut Drinking water Hi Tech Soil Soil Hindalco Carbon Mercury: 1.75 ppm Mercury : 0.008 ppm Mercury: 10.09 ppm industries Kirwani Soil DUDHINAGAR Chilika Daad Mercury: 0.5 ppm Mercury in humans (n=8) Dibulganj Average mercury level SINGRAULI Turrapipri Blood: 25.9 ppb Aditya Birla Chemicals Limited Lanco township Hair: 4.0275 ppm ANPARA (Erstwhile Kannoria Chemicals) Nail: 1.2125 ppm Khairahi - Kirwani NCL Kakri Mines Renukut Garbandha Renu sagar TPP Mercury in humans (n=3) Maximum mercury level Kirwani Average mercury level Blood: 78.68 ppb Kakri township Dongiya nallah Blood: 66.68 ppb Hair: 30.66 ppm Hair: 1.806 ppm Nail: 1.215 ppm Khairahi Nail: 1.06 ppm Kushmaha Soil Dongiya Nallah Maximum mercury level Mercury: 1.75 ppm NCL Bina Mines Effluent Sample Blood: 113.48 ppb Mercury : 0.127 ppm Hair: 10.92 ppm Bina township Kushmaha Nail: 3.04 ppm Soil Chilika Daad GBPS (Near Dongiya Nallah) Soil NCL Khadia Mines Mercury: 0.57 ppm Mercury: 1.75 ppm Fish sample Gobind Ballabh Pant Sagar (GBPS) reservoir Methyl mercury : 0.447 ppm SHAKTI NAGAR LEGEND Shakthi Nagar TPP GBPS GBPS (Near Dongiya Nallah) Dam Vindhyanagar TPP (Near Balliya Nallah) Surface water sample Fish samples Methyl mercury level Mercury : 0.01 ppm River Balliya nallah Fish : 0.505 ppm Nallah Road

Ash dykes Industry WAIDHAN Mines Thermal Power Plants (TPP)