Air turns ‘severe plus’; schools to go online except for Standard 10, 12
The toxic haze hanging over NCR for past few days intensified on Sunday and Delhi’s average Air Quality Index deteriorated to the season’s worst of 441 at 4pm, well into the ‘severe’ zone, compared to 419 a day earlier. By 6pm, it had surpassed 450, reaching the ‘severe plus’ category, prompting Commission for Air Quality Management to impose the fourth and most extreme stage of Graded Response Action Plan in NCR from 8am on Monday. CM Atishi posted: “Physical classes shall be discontinued for all students, apart from Class 10 & 12. All schools will hold online classes till further orders.” Grap-4 also gives an option to central and NCR govts to shift to work-from-home for employees. Air turns ‘severe plus’; schools to go online except for Standard 10, 12 TNN | Nov 18, 2024, 07.58 AM IST Air turns ‘severe plus’; schools to go online except for Standard 10, 12 NEW DELHI: The toxic haze hanging over NCR for past few days intensified on Sunday and Delhi’s average Air Quality Index deteriorated to the season’s worst of 441 at 4pm, well into the ‘severe’ zone, compared to 419 a day earlier. By 6pm, it had surpassed 450, reaching the ‘severe plus’ category, prompting Commission for Air Quality Management to impose the fourth and most extreme stage of Graded Response Action Plan in NCR from 8am on Monday. CM Atishi posted: “Physical classes shall be discontinued for all students, apart from Class 10 & 12. All schools will hold online classes till further orders.” Grap-4 also gives an option to central and NCR govts to shift to work-from-home for employees. Also read: Air quality in 'severe plus': GRAP-4 imposed in Delhi-NCR; what's allowed and what's not Sign of four: GRAP to squeeze Delhi further GRAP-IV is clamped when the poison in the air reaches "emergency' levels with AQI surpassing 450 (on a scale of 500). It primarily focuses on vehicular restrictions to reduce pollution. Under stage 4, entry of non-emergency trucks into Delhi has been barred for non-BS 6 compliant light commercial vehicles (LCVs) registered outside Delhi, and BS-4 and below diesel-operated medium and heavy goods vehicles in Delhi. The exemption earlier granted to construction and demolition (C&D) activities in linear public projects such as highways, roads, flyovers, over bridges, power transmission, and pipelines has now been removed. Central Pollution Control Board's data shows that the AQI rapidly surged through the day, as visibility remained poor. Delhi's AQI was 421 at 9am, which spiked to 452 at 6pm and further increased to 468 at 10pm. This was the fourth 'severe' day of the month. Before this, the AQI briefly remained in the 'severe plus' band on Nov 13 when it went up to 454 at 9pm. However, as CPCB considers the day's AQI at 4pm, Delhi on Sunday recorded an AQI of 441, the second highest this year after 447 on January 14. Anumita Roychowdhury, executive director, Research and Advocacy, Centre for Science and Environment (CSE), said, "This is happening because of the combined impact of the deepening of winter inversion and trapping of high local and regional pollution. We need urgent measures to slow down further loading of pollution from the key sources."
