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The latest evidence against diesel vehicles as the cause of dangerous levels of pollution in India’s capital Delhi should seal the case against the city’s old and polluting fleet. The most polluted city in the world recently turned fresh proof in a survey showing dangerous levels of very fine particulate matter in cleaner locations. Much smaller than the PM2.5 particles, the PM1 particulates refer to those particles smaller than a micrometre in size which can easily penetrate very deep into the lungs or enter the blood stream, damaging the inner walls of arteries and causing cardiovascular problems. Research is also suggesting their role in causing strokes…” International Business Times (UK). Read it on

World’s most polluted city Delhi now shows levels of ultra-fine particles