Slow poison: 80% of New Delhi’s tap water has plastic toxins

The Economic Times, Himanshi Dhawan
October 16, 2017 ,New Delhi


NEW DELHI: More than 80% of New Delhi's tap water is contaminated by plastic microfibres, new research has shown. This is the third highest contamination rate in the world after the US (New York and Washington DC) and Beirut, Lebanon. These findings are part of a study conducted after testing 150 samples of tap water collected by news website Orb Media from five continents. 

Though many in Delhi's well-off circles do not use tap water for drinking, large swathes of the capital's population have no access to safe drinking water. 

Research found the US had the highest contamination at 94%. Plastic fibres were found in samples taken from various sites, including the Congress buildings and Trump Tower in New York. Beirut was marginally behind at 93% followed by India at 82%. European nations, including UK, Germany and France, had the lowest contamination rate of 72%. 

These microscopic fragments enter the water system in several ways, from synthetic fibre clothing, tyre dust and microbeads. Most of these are believed to originate from clothes, upholstery and carpets. Washing machines and dryers add to the problem. According to a Guardian report, a UK study found that each cycle of a washing machine could release more than 700,000 microscopic plastic particles.

Scientists suspect plastic can leach toxins once inside the human body. Sherri Ann Mason, an expert on plastic pollution at the State University of New York in Freedonia, who supervised Orb's study, said: ``We have enough data from looking at wildlife and the impact that it's having on wildlife to be concerned. If it's impacting them, then how do we think it's not going to somehow impact us?" 

Commenting on the extent of pollution, Mason told TOI that the findings had surprised her. "Study after study has indicated the contamination of every compartment of our environment. As plastic is so prominent in the world's water in general, I suppose I shouldn't have been surprised to find it in our drinking or tap water, but I thought with our filtration methods the particles would be removed." 

About 300 million tons of plastic is produced annually in the world. While scientists have focused their attention on oceans and rivers, studying plastic pollution's impact on marine life, seabirds and the human food chain, the effect of microplastic's presence in the human body has still not been researched enough. 

The latest study shows that both developed and developing economies appear to be battling with the problem. Mason said, ``I expected that developed nations would show less contamination than developing, but it was quite the opposite. I really think this is simply owing to the prominence of plastic pollution within the environment. As plastic is a ubiquitous contaminant we can't expect to be able to filter ourselves out of this problem.'' 



Location: New Delhi, Delhi, India

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