Pollution by Dr. Seshagiri lays down a rationale for pollution control. The book covers all kinds of pollution: air, water, solid waste, and noise. Information is well supported by statistical data. A lovely book to look at with illustrations by many artists. A book for an age group of 12-14 they say, but a very good reminder for grown-ups. It warns that Ganga is not pure anymore. The situation hasn’t changed much since the book’s arrival.