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New Delhi, Jul 18: The Covid-19 lockdown-led reduction in air pollution levels across five Indian cities, including Delhi and Mumbai, may have prevented about 630 premature deaths, and saved USD 690 million in health costs in the country, according to a new study.

Scientists, including those from the University of Surrey in the UK, assessed the levels of harmful fine particulate matter (PM2.5) from vehicles and other sources in five Indian cities -- Delhi, Mumbai, Kolkata, Chennai and Hyderabad -- since the beginning of the lockdown period.

The study, published in the journal Sustainable Cities and Society, compared these lockdown PM2.5 figures from 25 March up until 11 May, with those from similar periods of the preceding five years, and found that the measure reduced pollution levels in all these places.

According to the scientists, during this period, the levels of these harmful air pollutants reduced by 10 per cent in Mumbai, and by up to 54 per cent in Delhi.

"The percentage reduction for the other cities ranged from 24 to 32 per cent, which was slightly smaller than the measured values for Delhi and Mumbai," the scientists noted in the study.

"While the reduction in PM2.5 pollution may not be surprising, the size of the reduction should make us all take notice of the impact we have been having on the planet," said Prashant Kumar, a co-author of the study from the University of Surrey.

The scientists said these reductions in PM2.5 were comparable to those reported in other cities across the world, such as in Austria's capital Vienna (60 per cent), and Shanghai (42 per cent) in China.

They also calculated the monetary value of the reduced mortality due to air pollution and found that the lowered levels of PM2.5 may have saved 630 people from premature death, and USD 690 million in health costs in India.

Coronavirus India update: State-wise total number of confirmed cases, deaths on July 17

According to the researchers, the present lockdown situation offers observational opportunities regarding potential control systems and regulations for improved urban air quality.

They said an integrated approach might help in understanding the overall impacts of Covid-19 lockdown-style interventions and support the implementation of relevant policy frameworks.

"This is an opportunity for us all to discuss and debate what the 'new normal' should look like - particularly when it comes to the quality of the air we breathe," Kumar said.

India is among 58 nations, including 27 European Union members, who have moved a draft resolution demanding evaluation of the World Health Organisation (WHO)'s response towards the novel coronavirus pandemic.

The European Union-led draft resolution on global COVID-19 response is set to be tabled at the upcoming World Health Assembly on Monday.

The draft resolution demands initiation "at the earliest appropriate moment to review experience gained and lessons learned from the WHO-coordinated international health response to COVID-19".

"We are deeply concerned by the morbidity and mortality caused by COVID-19 pandemic, the negative impacts on physical and mental health and social well-being, the negative impacts on economy and society and the consequent exacerbation of inequalities within and between countries," read the draft.

"We express solidarity to all countries affected by the pandemic, as well as condolences and sympathy to all the families of the victims of COVID-19," it added.

The resolution says timelines are to be evaluated regarding "recommendations the WHO made to improve global pandemic prevention, preparedness, and response capacity".

The WHO on January 23 declare a global health emergency, but did not declare it and waited for a week for its director-general Tedros Adhanom Ghebreyesus to return from China.

By that time, COVID-19 cases increased 10 times and the virus entered 18 countries.

According to Health Policy Watch, till as late as February, the WHO did not support countries for imposing travel restrictions to China.

"When countries began evacuating their citizens from Wuhan, the COVID-19 epicentre, the WHO said it did not favour this step".

The WHO finally declared it a pandemic on March 11.

The global health body has come under criticism not just from the US for its response being "China-centric".

Rajghat, Feb 23: The maternal uncle of Dr Kafeel Khan, who was recently arrested for allegedly making inflammatory statements during anti-CAA protests, was shot dead in front of his house at Bankatichak in Rajghat area, police said on Sunday.

Dr Nusratullah Warsi aka Dada (55), a property dealer, was shot dead on Saturday night at about 10:45 pm and an FIR against two people was filed in this connection on a written complaint of his family members.

According to police, it appears to be a case of murder due to monetary and property dispute and they are searching for both the accused.

Dr Kafeel Khan, suspended doctor of Gorakhpur BRD Medical College, was last month arrested under charges of giving a provocative speech during a protest against the CAA and NRC at Aligarh Muslim University and was later charged with the National Security Act.

Warsi on Saturday evening had gone to his lawyer Siraj Tariq's house, a few metres away from his own house, and was returning home on foot when a man shot him in his head, killing him on the spot.

"On the written complaint of family members, case of murder against one Imammuddin and Anil Sonkar has been registered and police has initiated probe and is searching for both the accused. Police met the women in their house and is interrogating them," Circle Officer VP Singh said.

Prima facie it appears to be a case of property and money dispute, he said, adding, three teams have been constituted to investigate the case and soon the accused will be caught.

Dr Kafeel Khan had last month raised apprehension in a Mumbai court about being killed in an "encounter" by the Uttar Pradesh police after claiming that he had been "falsely" implicated in the case by them.

The paediatrician had come to the limelight in 2017 when a controversy broke out after the death of over 60 children in less than a week at the BRD Medical College in Gorakhpur in Uttar Pradesh, where he was posted.