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Nirmal
Friday, February 3, 2023

Delhi’s air is ‘severe’, but gripe III unlikely at present.

World NewsIndia NewsDelhi's air is 'severe', but gripe III unlikely at present.

As Delhi residents awoke to another relatively warm day, a drop in wind speed led to a sharp rise in pollution levels on Sunday, shrouding the city in a smoky haze that left people gasping for air. left and pushed the city’s Air Quality Index (AQI). “Severe” category.

According to a Central Pollution Control Board (CPCB) bulletin, the capital on Sunday recorded an AQI of 407 (severe) at 4 pm – the highest in 12 days, and faster than Saturday’s recording of 294 (in the “poor” category). There is a departure from .

Meanwhile, the city recorded a maximum temperature of 24 degrees Celsius on Sunday, three degrees above normal for this time of the year, while the minimum temperature settled at 8.2 degrees Celsius, which is normal. is one degree higher than

Despite the rise in pollution, the Commission for Air Quality Management (CAQM) in NCR and Adjacent Regions, after calling an emergency meeting earlier in the day, said it has taken measures under Phase-III of the Graded Response Action Plan. Decided not to. Grepp) as he said Sunday’s conditions were a “disruption” and forecasts showed air quality was likely to improve again from Monday. Experts have said that light rain forecast in the city between Tuesday and Thursday due to a Western Disturbance could further reduce pollution levels.

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“During the meeting, it was noted that this sudden and drastic drop in air quality parameters … which has led to Delhi’s overall AQI falling into the ‘severe’ category, is an anomaly as the overall AQI in the forecast was With immediate improvement forecast. Move to ‘very poor’ category from Sunday night,” CAQM said in a statement on Sunday. It added that according to dynamic models and weather and climate forecasts provided by the India Meteorological Department (IMD) and the Indian Institute of Tropical Meteorology (IITM), there was a strong indication that Delhi’s overall air quality was It will start to get better and bigger. Fluctuation between “poor” to “very poor” categories in coming days.

“Considering the above position, and after comprehensively assessing the air quality scenario and other relevant aspects, the Sub-Committee has decided that the ongoing measures to be implemented under Stage-I as well as Stage-II The measures will continue and it will not be considered necessary. Phase III at this time,” he added.

According to the categories defined under the new GRIP, Stage III should be used when the AQI is predicted to exceed 400, or has already crossed that threshold. However, the final decision on rollout is usually taken by the CAQM Subcommittee for Grap.

Under GRIP’s Stage-III, private construction activities in Delhi-NCR have been halted, while brick kilns and hot mix plants that are not running on clean fuel have also been shut down. Further, all stone crushers and mining or allied activities are stopped, if Stage-III is initiated. The Delhi government also has the power to ban BS-III petrol and BS-IV diesel vehicles from plying within the city.

CPCB defines AQI between 0-50 as “good”, between 51 and 100 as “satisfactory”, between 101 and 200 as “moderate”, between 201 and 300 as “poor”, between 301 and 400 as “very poor”. Classifies as and more than 400 as “severe”.

This is the third windy day in the capital this month — the AQI had soared to 434 and 407 on January 9 and 10, respectively. Delhi recorded three such days in November and two in December last year, while no severe wind days were recorded in October.

Phase III restrictions were in place in NCR between January 6 and 15, with CAQM enforcing them on January 6, when the AQI briefly touched 400. However, measures were lifted on 15 January, as Delhi’s AQI fell below 300.

However, the rise in pollution ended the game badly for Delhi residents who might have hoped to enjoy the outdoors on a relatively warm day after a chilly start to the year.

The respite from the severe cold is likely to continue for at least a few more days under the influence of another western disturbance, which is likely to bring rain after Tuesday, IMD officials said.

While rain was initially expected from Monday, the IMD has now predicted drizzle or very light rain in Delhi from January 24 to 26, with cold wave conditions till at least January 28. Not expected. The minimum temperature in the city is expected to be between 9°. A minimum of 10°C and 10°C by January 28, while a maximum of 22°C and 24°C will fluctuate.

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However, the mercury is expected to start falling again after January 28, IMD officials indicated.

Delhi’s year began with two cold waves – the first between January 5 and 9 and the second between January 16 and 18. However, the cold wave conditions subsided from January 19.

“We are seeing two back-to-back Western Disturbances in the region and while the impact of the first Western Disturbance has dissipated, this second Western Disturbance will affect most of the Northern Plains between January 24 and 26, with drizzle likely. “. An official of the Meteorological Department said that the intensity of rainfall is also expected to be less than earlier forecasts.

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