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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.

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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.

New Delhi, Mar 25: The Congress said on Wednesday that it stood with Prime Minister Narendra Modi on his appeal for 21-day lockdown but was "deeply disappointed by the lack of coherent strategy" and demanded that Rs 7,500 should be transferred to every Jan Dhan, PM Kisan and pension account to tide over the nutrition needs for 21-days.
It also demanded that the Public Distribution System (PDS) ration should be given free.
In a series of tweets, Congress Communications in-charge Randeep Singh Surejwala said that the need of the hour was to implement 'Minimum Income Guarantee Scheme' (Nyay) mooted by the Congress and party leader Rahul Gandhi.
"Please transfer Rs 7,500 to every Jan Dhan, PM Kisan, and every pension account to tide over nutrition needs of 21 days and give free PDS ration. We will rise together as a nation and defeat COVID-19. We stand with lockdown but are deeply disappointed by the lack of coherent strategy or a clear 'way ahead' on your part," he said.
Surjewala asked what steps the government took despite an early warning about COVID-19 and sought details about isolation beds and ventilators available to people.
"Dear PM, India will adhere to the lockdown but what steps did the govt take to tackle the corona pandemic despite early warnings in Feb? When will doctors, nurses and health workers have adequate protection? How many 'isolation beds' and ventilators are available and where?" he said.
He asked how daily wagers and labourers will sustain during the 21-day lockdown.
"What's your plan to address the huge issue of bread and butter and livelihood for millions? How will daily wagers, labourers, MGNREGA workers, factory workers, unorganised workers, fishermen, farmers and farm labour sustain for 21 days?" he asked.
Surjewala said the crying need is to arm doctors, nurses and health workers with personal protection equipment and asked: "why are N-95 masks, Hazmat suits not available?"
"In March itself, India needs 7.25 lakh bodysuits, 60 lakh N-95 masks, 1 crore 3 ply masks? When will they be available?" he asked.
Surjewala said that the government banned the export of ventilators, respiratory devices and sanitisers only yesterday on March 24, "84 days after the spread of COVID-19."
"Is this your government's 'Modus operandi' to fight coronavirus? Too little, Too late!," he said.
Noting that two-thirds of the country's population is engaged in agriculture, he said that Prime Minister Modi did not refer to farmers during his address to the nation and demanded a moratorium on farmers' loans.
"Crop is ready for harvest in March itself. How will it be harvested and sold and who will buy at fair price? Indebtedness relief to farmers is the only way forward in these testing times. Please put a moratorium on farmers' loans and recoveries. Please ensure the procurement of crops at MSP. Let's not forget that farmers are the backbone of India's economy," he said.
Surjewala said the Prime Minister gave only four hours to prepare for 21-day lockdown.
"Did you think of over 5 lakh truck drivers, who are now stranded on roads? Did you think of millions of workers, who are stranded in cities away from home without food or money? What should they do," he asked.