agricultural air pollutant
durable organic pollutant pollution
Durability organic chlorine pollutant
Distribution uniformity of pollutant
discharging of pollutant in reservoir
discharge standard of pollutant
discharge pollutant loads
discharge of pollutant sources
discharge amount of the main pollutant
Direction of the pollutant source
degradation of pollutant
Dealing of pollutant discharge permit regime
Control of pollutant soure
Concentration variation of pollutant
Concentration of pollutant
concentration of main pollutant