Cd 1 China 1 Hunan 1 Industria minera 1 Mining industry and finance 1 Pb 1 Zn 1 আরও ... accumulation 1 acumulacin̤ 1 cadmio 1 chemical speciation 1 contaminacin̤ 1 contamination environment 1 environmental impact 1 especiacin̤ qum̕ica 1 geoaccumulation index 1 heavy metals 1 impacto ambiental 1 medio ambiente 1 metales pesados 1 minera̕ 1 mining 1 n̕dice de geoacumulacin̤ 1 plomo 1 soil 1 suelos 1 zinc 1 কম ...