Archive · 13 Dec 2025
Air Quality Deteriorates in Bihar and Delhi
The air quality in seven cities of Bihar and several areas of Delhi, India, has become poor to severe.
In Bihar, Arrah has the worst air quality with an AQI of 266, while Patna has the lowest at 217.
Other cities like Bihar Sharif, Rajgir, Samastipur, Buxar, and Hajipur are also affected.
In Delhi, areas like Anand Vihar, ITO, and Akshardham have AQI levels crossing 400, which is categorized as 'severe'.
Experts say this is because of winds coming from nearby states and vehicular emissions.
The air quality index measures how clean or polluted the air is by looking at eight different pollutants.
The Bihar State Pollution Control Board and the Central Pollution Control Board are aware of the situation and have provided this information.
The Commission for Air Quality Management (CAQM) has set up an expert committee to develop strategies to curb air pollution caused by vehicular emissions in Delhi.
Air quality in seven Bihar cities deteriorated to 'poor' category on Friday.
Arrah recorded the highest AQI at 266, while Patna had the lowest at 217.
Other affected cities in Bihar include Bihar Sharif, Rajgir, Samastipur, Buxar, and Hajipur.
Delhi's air quality neared 'severe' category on Saturday with AQI levels crossing 400 in areas like Anand Vihar, ITO, and Akshardham.
The Commission for Air Quality Management (CAQM) set up an expert committee to curb vehicular emissions in Delhi.
- Who
- Residents of Bihar and Delhi
- What
- Air quality deterioration to 'poor' and 'severe' categories
- When
- Friday and Saturday
- Where
- Bihar and Delhi, India
- Why
- Northwesterly winds, calmer wind conditions, and vehicular emissions
Environmental Concerns
Government Response
Air Pollution
Environmental Concerns
Residents in Bihar and Delhi are experiencing poor to severe air quality, posing health risks.
Government Response
Government bodies like the CPCB and CAQM are monitoring the situation and taking measures to mitigate pollution.
- Cities Affected in Bihar
- Arrah, Bihar Sharif, Rajgir, Samastipur, Buxar, Hajipur, Patna
- Highest AQI in Bihar
- 266 (Arrah)
- Lowest AQI in Bihar
- 217 (Patna)
- AQI in Delhi
- 390-434 (Very Poor to Severe)
- Reason for Deterioration
- Northwesterly winds, calmer conditions, and vehicular emissions
- Pollutants Measured
- PM 2.5, PM 10, nitrogen oxides, sulphur dioxide, ozone, carbon monoxide, ammonia, lead
- Government Response
- CAQM sets up expert committee to curb vehicular emissions in Delhi
Sources
Air quality deteriorates in 7 Bihar cities; Arrah records highest AQI at 266
CAQM sets up panel to study how to curb vehicular emission in Delhi, report in 2 months
Delhi Wakes Up To Thick Layer Of Smog, Pollution Worsens As AQI Crosses 400 Mark In Several Areas
Heavy Smog Blankets Delhi As Air Quality Nears 'Severe', Airport Issues Advisory
