Operational processes and production activities of man in the urban areas, industrial zones and craft villages cottage industry has arisen out of the solid waste and liquid under different. Wastewater is discharged into the environment after the process used in human activities, have been modified ingredients and contains many pollutants may be discharged nhiem.Nuoc mixture of water or liquids containing waste from households, schools, shopping centers or industrial with underground water sources, rainwater.
The livestock activities: fertilizer, animal urine, food scraps do not
handle their through put on lip School activities and other agricultural produce: Non
trusau, fertilizer tucac paddy fields, coconut, orchards, vegetables contain toxic chemicals
harmful pollution thegay groundwater and surface water.
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