Hello hello ,

As per your query , we all know that pollution is a unwanted waste of human origin released to air , land , water , and the ocean without regard for cost or consequence is an existential threat to human life , aquatic life and so on.

Now , come to the primary pollutants , it is formed directly from particular sources. Example are carbon monoxide , nitrogen oxide , and sulphur oxide.

Secondary pollutants are formed in the lower atmosphere by chemical reactions. The two examples are ozone and haze.

I hope this will be helpful for you.

Good luck!!