Delhi's air quality has deteriorated to "very poor" levels due to unfavorable weather conditions, according to monitoring agencies. The average air quality index stood at 313 on Sunday, worsening from 248 the previous day. The situation is expected to continue for the next few days due to a drop in temperature and emissions from stubble burning. Smoke from paddy straw burning accounted for 16% of Delhi's pollution on Sunday, with predictions of it increasing to 30-32% on Monday. Farm fires have been a major contributor to PM2.5 pollution in Delhi in previous years.
