Source: wikimedia
A large part of Mumbai's economy is thrives on its waters bodies which are an important transit point for trade and also a major source of livelihood for fishermen. However, what's ironic is that a major part of water pollution in Mumbai can be credited to none other than the Mumbaikars themselves.
Every year, Mumbai immerses over 1.5 lakh Ganesha idols as a part of the festivities during their major festival, Ganesh Chaturthi. This in turn leads to a lot of water pollution owing to the harmful chemical paints and plaster of paris which the idols are made up of.
Source: sankashti