General Chemistry Lecture 400 - Classification of Pollutants

Pollutants are claassified as primart pollutants and secondary pollutants. Those substances emitted from identifiable source like sulphur dioxide gas and nitrogen dioxide gas is known as primary pollutants. The substances derived from the primary pollutants by chemical reactions are called secondary pollutants.
Title: General Chemistry Lecture 400 - Classification of Pollutants
Instructor: Prof. I. Z. Khan
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