Agua 1 Agua potable 1 Bromide 1 Bromuro 1 Calidad del agua Contaminacin̤ 1 Drinking water 1 больше ... Environment 1 Environmental impact 1 Environmental pollution 1 Estados Unidos 1 Gas de esquistos 1 Gas natural Impacto ambiental 1 Medio ambiente 1 Metano 1 Methane 1 Natural gas 1 Perforacin̤ de pozos 1 Qum̕ica del agua 1 Shale gas 1 United States 1 Water 1 Water chemistry 1 Water quality 1 Well drilling 1 меньше ...