Published: Wed, December 26, 2018
Sci-tech | By April Francis

As air quality dips in Delhi, industries shut for three days

As air quality dips in Delhi, industries shut for three days

However, now with Delhi facing its worst pollution levels ever, a strict rule is required to curb the rising pollution levels. The index was 5000 sqm/second on Tuesday, the IITM had said.

Battling the year's worst spell of air pollution, the Supreme Court-mandated pollution watchdog EPCA on Monday ordered a shutdown of industrial units and halted construction activities in Delhi-NCR till December 26.

At least 30 areas in the national capital region recorded severe AQI levels.

"The ventilation index which allows dispersion (of pollutants) is extremely poor and it is expected that these conditions will prevail for the next two days", Lal said in the letter.

"Recovery got delayed mainly due to slowing of wind speed leading to persistence of fog which rapidly multiplied finer particles leading to rapid increase in PM2.5 and even PM1 (fine particulate matter in the air with a diameter of less than 1 micrometer)", the SAFAR said.

The air quality index value on Tuesday was recorded at 403, down from 448 on Monday. The directions came a day after the Central Pollution Control Board recommended these actions to combat the high pollution levels.

Instead of engaging in "false propaganda" about the quality of the city's schools and hospitals to further his political agenda in Haryana, the Delhi BJP on Tuesday said that Chief Minister Arvind Kejriwal should try to seek a solution to air pollution in the Capital. The PM 2.5 level may average above 400 and hit a high of 534 in some places, CPCB data showed.

The EPCA directed the traffic police to deploy special teams and ensure congestion-free traffic flow particularly in identified high traffic corridors.

In a health advisory, the SAFAR asked Delhiites not to rely on common dust masks for protection.

In the NCR, Faridabad, Ghaziabad and Noida recorded severe pollution while Gurgaon recorded "very poor" quality air.

Mr. Tiwari alleged that Mr. Kejriwal had made many poll promises to control pollution, including mechanical cleaning of roads, sprinkling of water, tree plantation, banning construction work and installing air purifiers, but the Delhi government had "failed" at fulfilling "any of them".

"The wind speed and ventilation index are highly unfavourable for dispersion of pollutants", it had said.

Vertical mixing in the room that is available for pollutants to disperse. "The AQI will go back to the very poor category by tonight for the next three days", it had said.

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