The Commission for Air Quality Management (CAQM) invoked Stage III restrictions under the Graded Response Action Plan (GRAP) on Thursday due to a sharp deterioration in air quality in Delhi and the National Capital Region (NCR). This action was prompted by a significant rise in the Air Quality Index (AQI), which had already surged to 357 at 4 PM on January 9, following calm winds and dense fog.
The CAQM cited that the AQI, which stood at 297 on January 8, showed an alarming upward trend in recent days. The restrictions are part of ongoing efforts to curb pollution and ensure the safety of residents as the air quality continues to worsen.
In addition to the Stage III restrictions, the measures from Stage I and II of the revised GRAP will remain in effect, as the authorities continue to monitor and review the air quality across Delhi and NCR. The CAQM issued a request for citizens to strictly adhere to the citizen charter under the new restrictions, aimed at reducing exposure to harmful pollutants.
A Cold Wave and Dense Fog Add to Pollution Concerns
On Thursday, Delhi woke up to a layer of shallow fog, with residents facing a relentless cold wave. The minimum temperature was recorded at a chilling 5°C, while the maximum temperature was expected to reach around 21°C, according to the India Meteorological Department.
This combination of dense fog and low temperatures has further contributed to the worsening air quality. The weather conditions have led to a stagnation of pollutants in the atmosphere, making it harder for the air to clear and worsening the pollution levels.
Previous GRAP Measures and Supreme Court Directives
The CAQM had lifted Stage III restrictions earlier on January 5 after a period of improved air quality. However, as pollution levels have worsened, the restrictions have been reinstated. The Supreme Court had previously directed the CAQM to impose Stage III measures when the AQI crosses the 350 mark, and Stage IV measures when the AQI exceeds 400.
The Central Pollution Control Board (CPCB) classifies AQI levels as follows:
- 0-50: Good
- 51-100: Satisfactory
- 101-200: Moderate
- 201-300: Poor
- 301-400: Very Poor
- 400+: Severe
With the AQI reaching dangerous levels, authorities have urged residents to take necessary precautions, including avoiding outdoor activities and wearing masks when stepping outside.
Sources By Agencies