Low-micron plastic bags are the biggest culprit
NAVI MUMBAI: Considering the problem of clogged drains that come with accumulation of plastic waste, the government banned the use, sale and manufacture of plastic bags of less than 50 microns and 8x12 inches (20cmx30cm) manufactured from polythene or polypropylene after the July 2006 Mumbai deluge.
While the satellite city did not face major problems during the 2006 deluge, except minor water loggings at certain areas for a few hours, authorities say that plastic still continues to get stuck in the drainages and regular clean-ups are required to be done to keep that in check.
“Of the 15- 20% of plastic waste found, only 9-10% turns out to be pure plastic which is recyclable in the form of granules to serve as a base material for any plastic. Non-recyclable plastic, largely comprising plastic bags under 50 microns, is a major concern. It is light weight, gets blown away easily and sticks to other green waste. And on top of it, such plastic is of no value, and ends up choking drains,” said Mohan Dagaonkar, city engineer.
“Frequent cleaning is the only solution to this menace. The civic body does regular drain clean- ups to ensure plastic waste does not choke drains and sewers,” he added.