Alarms of Pesticides
The water pollution is brought about by effluents from factories (the organic matter in such contaminated water is broken down by bacteria which consume oxygen and the oxygen demand is usually tested by ‘Biochemical Oxygen Demand’ or BOD test’). Some of which may have toxic substances like metallic zinc and copper, by crude oil mostly in seas and beaches, and pesticides. The pollution of soil is by all agents that pollute the water.
October 31 2008 11:15 am | Uncategorized
Leave a Reply
You must be logged in to post a comment.