NEW DELHI: Delhi’s air quality has been oscillating between good and satisfactory categories for the past one week, making it one of the longest spells of clean air in the national capital this year, authorities said on Friday.The authorities have attributed increased rainfall with approaching western disturbance as the main reason behind the improvement in air quality. According to the Centre-run System of Air Quality and Weather Forecasting (SAFAR), the overall air quality index (AQI) of Delhi was 44 on Friday which falls in good category, while the Central Pollution Control Board (CPCB) said the AQI was recorded in satisfactory category at 59. Also Read – After eight years, businessman arrested for kidnap & murderAn AQI between 0 and 50 is considered ‘good’, 51 and 100 ‘satisfactory’, 101 and 200 ‘moderate’, 201 and 300 ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’. The level of PM2.5 (particles in the air with a diameter of less than 2.5 micrometre) was recorded at 44 and the PM10 level was recorded at 21 on Friday, SAFAR said. The AQI was recorded at 69 on Tuesday, 63 on Wednesday and 75 on Thursday. Officials said it is the longest spell of clean air experienced by Delhiites this year. Also Read – Two brothers held for snatchingsThe air quality is predicted to be in good category for the next three days, according to SAFAR. “Overall air quality of Delhi is in good category. Wide spread rain helped to the sudden improvement of the air quality. Increased rain fall activity is likely in association with approaching western disturbance and monsoon low, fairly widespread to widespread rainfall and isolated heavy rain falls are expecting over the weekend,” it added. According to the CPCB, PM2.5 levels in the national capital dropped by 7.3 per cent in 2018 when compared to 2017 and by 14.8 per cent over 2016. Similarly reduction in PM10 levels in 2018 is 8.6 per cent over 2017 and 16.5 per cent over 2016.
The Canadian Press HALIFAX — Up to 700 Canadian Forces personnel will be fanning out across the Maritimes today to help restore electricity, clear roadways and evacuate residents in flooded areas following the wrath of Dorian.The former hurricane howled into Atlantic Canada yesterday as a ferocious post-tropical storm with wind gusts reaching nearly 150 kilometres an hour.In the Halifax area, which was among the hardest hit, the storm uprooted trees, ripped into roofs and pulled down powerlines, leaving hundreds of thousands of people in the dark.Nova Scotia Power said it had crews standing by ready to make repairs as soon as it was safe for them to do so.As the storm plowed into Prince Edward Island, about 50,000 homes and businesses were soon without power, as were another 74,000 in New Brunswick.Early this morning the west coast of Newfoundland and Labrador was bracing for heavy rain, strong winds, storm surges and large waves, however, Newfoundland Power said it was ready for the storm and would provided updates through an automated alert system.There have been no reports of injuries in the Maritimes linked to Dorian, but dramatic footage shared on social media showed a large crane swaying in the wind and collapsing into the side of an empty apartment building under construction in downtown Halifax.In the city’s south end, a roof was ripped off another apartment complex, while other images on social media showed scores of upended trees, a torn-up waterfront boardwalk, flooded streets and flying debris.The Canadian Red Cross opened three evacuation shelters in the Halifax region.As Dorian closed in on the Maritimes, it strengthened to become a Category 2 hurricane with sustained winds reaching 160 km/h. But it weakened by the time it came ashore near Sambro, N.S., at 7:15 p.m. and was downgraded to a post-tropical storm.Despite its downgrade, Dorian continued to produce hurricane-force winds well above 120 km/h.