There was a partial improvement in air quality on Wednesday due to weather-friendly activities in the national capital. However, it remains in the 'bad' category. The Central Government's Air Quality Early Warning System in Delhi reported that the incidents of stubble burning (around 2,400) decreased in Punjab on Tuesday, but their number is still much higher and affecting the air quality of Delhi and Northwest India. Can.
Due to changing winds in Delhi, the share of stubble burning in pollution fell to 10 percent on Tuesday. Due to the increase in wind speed in Delhi, the air quality index (AQI) 279 was recorded at 10 am. The last 24-hour AQI was 302 in Delhi on Tuesday, while on Monday and Sunday it was recorded 293 and 364 respectively.
It is worth mentioning that AQI between 0 and 50 is 'good', between 51 and 100 is 'satisfactory', between 01 and 200 is 'moderate', between 201 and 300 is 'bad', between 301 and 400 is 'very bad' And between 401 and 500 is considered 'severe'. According to 'travel', the air quality monitoring agency of the Ministry of Earth Sciences, the share of stubble burning in Delhi's pollution was 16 percent on Monday, while on Sunday it was 40 percent, which is the highest this season. According to Safar, the share of burning stubble in Delhi's pollution was 32,19 and 36 percent respectively on Saturday, Friday, and Thursday.
Last year, stubble burning accounted for 44 percent of Delhi's pollution on November 1.
According to the Meteorological Department of India (IMD), Delhi will have a maximum wind speed of 15 km per hour on Wednesday.
The minimum temperature in Delhi was recorded at 10.6 degrees Celsius. Due to the slow speed of the winds and low temperatures, the polluting elements accumulate close to the surface, but the speed of the wind helps to scatter them.
According to Delhi's air quality early warning system, Delhi's ventilation index (rate and average speed of dissolution of objects in the air) will be 9,500 square meters per second on Wednesday, which is helpful for scattering pollutants.
It is noteworthy that adverse conditions arise for the scattering of pollutants when the ventilation index is 6,000 square meters per second and the wind speed is less than 10 kilometers per hour.