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Delhi's air quality 'severe' due to dust storm in western India

Press Trust of India  |  New Delhi 

High levels in were mainly due to dust storms from Rajasthan, the Ministry said after air quality in deteriorated beyond "severe" level today and predicted that dusty conditions were likely to prevails over the next three days.

The ministry has also alerted major construction agencies, municipal corporations and Control Committee (DPCC) to ensure water sprinkling, and asked Delhi's to issue appropriate instructions in the matter to the agencies concerned.

The Central Control Board (CPCB) also convened an urgent meeting of the regarding implementation of (GRAP) today and issued necessary directions to contain local dust sources.

The air quality in Delhi deteriorated beyond the "severe" level because of a ground-level in western which increased coarser particles in the air, the Board data showed.

The CPCB data showed that the PM10 (particles with diameter less than 10mm) level was beyond "severe" at 778 in Delhi-area and 824 in Delhi particularly, leading to hazy conditions and limiting visibility.

The CPCB said the pollution of this season was very different from that of last year. In November last year, both PM2.5 and PM10 had spiked which was posing serious health hazard. However, the current increase in levels of pollution is mainly due to drastic increase in coarse particles in air which has caused a spike in PM10 level but PM2.5 is not as high as that of last year.

"The high pollution levels during this time of the year in Delhi are unusual and primarily due to dust storms from is facing extremely dry weather conditions, with high temperatures and wind speeds," a ministry statement said.

It said the wind direction in Delhi since June 10 has changed to West and North West and then since June 12 to West and South West, due to which hot air, along with dust from has started moving into Delhi.

According to the Meteorological Department (IMD), the current surface winds in Delhi are in the range of 5-6 m/sec and wind direction is West to South West, which is likely to continue over the next three days.

"Therefore, it is expected that dusty conditions will prevail in Delhi over the next three days. Major construction agencies, municipal corporations and Committee (DPCC) have been alerted to ensure water sprinkling, as required," it said.

The Ministry has requested the Chief Secretary, Delhi to issue appropriate instructions in the matter to the agencies concerned, it said.

"CPCB convened an urgent meeting of the regarding implementation of (GRAP) today and issued necessary directions to contain local dust sources. The has also recommended that public should avoid prolonged exposure," the Ministry said.

Gufran Beig, a at the Centre-run System of Air Quality and Weather Forecasting and Research institute, said the deteriorated the air quality in Delhi-

"There was a ground-level in the western part of the country that increased drastically coarser particles in the air, causing a spike in pollution levels in Delhi," he said.

According to CPCB, the air quality index at several places in Delhi crossed the 500-mark, with east Delhi's area recording an AQI of 891.

An AQI between 0-50 is considered Good, 51-100 Satisfactory, 101-200 Moderate, 201-300 Poor, 301-400 Very Poor, and 401-500 Severe.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Wed, June 13 2018. 22:15 IST
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