India, Oct. 21 -- Haze enveloped parts of Delhi on Wednesday, October 21, amid worsening air quality in the national capital. The AQI in Delhi was recorded at 227 at 7:05 am, according to an article reporting the data in the "poor" range. The Air Quality Early Warning System (AQEWS) had also predicted that the air quality in the region will remain poor in coming days.

The "poor" range for air quality index is 201 to 300. Prolonged exposure to contaminated air can result in difficulty breathing, especially in those with respiratory problems and other vulnerable groups.

The AQI in Delhi was recorded at 179 on Tuesday, October 20, falling in the "moderate" range. The increase in the index showed that air quality worsened. Poor air quality ...