The quality of air in the national capital has seen a drastic improvement. This was recently recorded on Friday which was also followed by heavy rains which lashed most parts of the city. People residing near the IGI Airport were among the ones enjoying the best air quality.
Air currently consists of a particulate matter with a diameter of 2.5 and 10 micron which is very small to be filtered out of the body, plummeted to 18, and 31 micrograms per cubic which has made the air in the city pretty pleasant.
The Air Quality Weather Forecasting and Research system categorizes the quality of air in 0-50 range as good, in the range of 51-100 as satisfactory, 101-200 as moderate, 201-300 as poor, 301-400 as very poor and that above 400 as severe.
The air quality index is marked at 45 under the ‘good’ category.
The capital has witnessed and enjoyed the cleanest air of the year with the overall air quality remaining at 42 in March when a nation-wide lockdown was imposed.
The data on the Central Pollution Control Board’s website by the 36 air quality monitoring stations depict that the quality of air near Delhi Technical University (DTU) is still in the ‘poor’ category and is at 251 micrograms per cubic.
Among all monitoring stations, the AQI at 21 stations out of them, which includes IGI Airport and JNU is in the ‘good’ category. Five stations recorded ‘satisfactory’ air quality, this includes the one near ITO. Delhi’s Bawana station area recorded a ‘moderate’ air quality. The other Four stations show no data.
The Ministry of Earth Sciences introduced the research system which reports that incessant rainfall is helping to clean the atmospheric pollutants through the washout process. “Under this favorable condition, AQI forecasted to stay at the lower end of the satisfactory to the good category for the next two days.”
Low lying areas have been inundated by the heavy rains on Thursday. It even threw traffic out of gear at several places. Heavy rains were also witnessed in the city a night prior.
India Meteorological Department, Ayanagar observatory recorded 99.2 mm rainfall, which is the maximum in the city. Safdarjung, Palam and, Ridge stations gauged 68 mm, 93.6 mm, and 84.6 mm precipitation.
A yellow alert has been issued for the next five days by the weather bureau. Heavy rain with lightning and thunderstorm will continue in Delhi due to the moisture incursion from the Arabian Sea and a line of low pressure passing near the city.
Air quality is continuing in the ‘good’ category in Pune, Mumbai, and Ahmedabad owing to the widespread rainfall and it is likely to stay good for the next two days ahead. Pune ranks at the top for the best AQI among the four cities.
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