Hello aspirant,

In order to be an environmental chemist, candidates must have completed B.SC in Chemistry or Polymer Chemistry as the optional main subject and Mathematics as one of the subjects in subsidiary with a minimum aggregate of 55% or B.SC Industrial Chemistry/B.SC Chemistry & Industrial Chemistry. So, yes you've to need to learn Mathematics in B.SC so as to become an environmental chemist. So prepare accordingly and try to score more marks in any PG exam applicable for pursuing M.SC in Environmental Chemistry.

Hope, it helps you.