According to a report conducted by IQAir, a Swiss organisation that tests air quality standards based on the concentration of lung-damaging airborne particles known as PM2.5, New Delhi holds the position for the world's most polluted city for the third year in a row in 2020.
Here's the air quality improvements across major cities in 2020 compared to 2019 include Beijing (-11%), Chicago (-13%), Delhi (-15%), London (-16%), Paris (-17%) and Seoul (-16%)
According to Avinash Chanchal, Climate Campaigner, Greenpeace India, this is to be seen that lockdowns resulted in temporary improvements in air quality in many areas but Delhi not leaving the place of world's most polluted city.
He suggests that Governments must prioritise renewable energy sources such as wind and solar, as well as low-cost, carbon-neutral, and affordable transportation, to see significant, long-term changes in air quality. Accelerating the transition to renewable energy and clean transportation not only saves lives, but it also decreases healthcare costs significantly.
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