Current Affairs


  1.   An analysis of Delhi’s air pollution and future trends says that 60 per cent of particulate matter pollution in Capital comes from neighbouring Haryana and Uttar Pradesh.
  2.  Even if Delhi adopts the cleanest-grade fuel available, ensures that power plants in the vicinity adopt stringent emission norms and maintains tidy pavements, pollution would persist well above the globally recommended safe levels unless the neighbouring States too adopt similarly stringent policies.
  3.  The States’ cooperation too would at best only halve Delhi’s pollution as the Capital’s geographical location and land-use patterns are such that a fixed mass of particulate matter will persist.
  4.  Delhi’s particulate matter pollution hovers between 300 and 900 microgram/ cubic metre, depending on the weather, which is way above the safe level of 40 microgram/cubic metre.
  5.  In their assessment, transport sector contributed nearly a fifth of the PM 2.5 — the ubiquitous residual particulate matter resulting from incomplete burning of matter — in Delhi. PM 2.5 is linked to respiratory diseases and cancer.
  6. Other key sources, in Delhi include the burning of biomass in cooking stoves, secondary inorganic aerosols from power plants and ammonia from agriculture.
  7.  The research identifies a range of measures including road paving to reduce dust emission, a rapid transition to clean cooking fuels in Delhi and neighbouring States and managing agriculture and municipal waste.
  8.  Even Pakistan is a contributor though there’s also pollution going out from India.
  9.  The study finds that nearly a fourth of the 15,000 tonnes of PM2.5 emitted annually is due to road dust and about 40 per cent due to power plants and residual and commercial combustion.
  10.  Delhi is among the world’s most polluted cities. In 2014, it was ranked the most polluted city globally in terms of PM 2.5, by the World Health Organisation.
  11.  In the latest WHO report, Delhi was toppled by Zabol, Iran. Gwalior and Allahabad, meanwhile, came a close second and third in terms of PM 2.5, while Patna and Raipur were ranked 6th and 7th respectively.