The air quality in Delhi improved marginally on Tuesday, showed real-time data by the System of Air Quality and Weather Forecasting and Research, or Safar. On Monday, the air quality was in the “severe” category while on Tuesday it was in the “very poor” category.
At 3 pm on Tuesday, Safar recorded the air quality index at 379 in Delhi. According to the Central Pollution Control Board, any reading of the air quality index or AQI above 100 on a scale of 500 is progressively unsafe for health.
Levels of the most dangerous particles, PM2.5, was 223 micrograms per cubic meter on Tuesday.
“Today’s share of crop residue burning is 30 per cent in PM2.5,” Safar said, according to ANI. “AQI is likely to improve further but remains in very poor category.”
Particulate matter smaller than 2.5 microns (or about a ten-thousandth of an inch) is particularly dangerous to human health. Such particles are small enough to travel deep into the respiratory system, potentially impairing lung function.
Air pollution in Delhi typically worsens in October and November due to farmers burning stubble in neighbouring states, unfavourable wind speed and emission of fumes by the local traffic in the city. Firecrackers ignited for Diwali add to the problem.
The Central Pollution Control Board on Monday issued a notification,…