write a paragraph on delhi gasps for air in 150-200 words.
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For the fourth consecutive day on Sunday, Delhi’s air quality index (AQI) was in the severe zone with a value of 416, indicating a health hazard to all those who were exposed to such poor air. Crop stubble fires in the northern states contributed to 29% of Delhi’s PM 2.5 load according to estimates by System of Air Quality and Weather Forecasting and Research, Indian Institute of Tropical Meteorology.
The PM 2.5 concentrations touched 250 micrograms per cubic metres on Sunday, over four times the national ambient air quality standards and 25 times the World Health Organisation prescribed limit of 10 micrograms per cubic metres.
There were over 4,900 fire points in Punjab on Saturday and over 3,500 on Sunday, according to data with the ministry of earth sciences (MoES). The combination of smoke from crop fires and calm winds led to air quality deteriorating significantly. Farmer leaders said crop fires are likely to continue till November 15, by when harvesting will be completed. One of the reasons for the prolonged stubble fire period in Punjab is the shortage of farm labour who had moved back to their states during the national lockdown for Covid 19 pandemic.
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