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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.

Malappuram, Apr 11: Farmers in Malappuram district are facing problems in selling cucumbers and watermelons due to the drop in demand and prices in the market amid the nationwide COVID-19 lockdown.

"We have cultivated cucumbers for our Vishu festival in Kerala. In recent conditions, we are facing issues in selling our crops. In comparison to the previous years, we have a huge production this time," said Saifu, a farmer in the Malappuram district.

"We have also cultivated different kinds of watermelons here. The major issues that we are facing are the low prices and the lockdown," he added.

The nationwide COVID-19 lockdown was imposed by Prime Minister Narendra Modi form March 25 for 21 days as a precautionary measure against the spread of the virus.

According to the Union Ministry of Health and Family Welfare, the total number of positive COVID-19 cases in Kerala is 364. Till now, 123 people have either been cured or discharged, while two deaths have been reported.

The total number of positive coronavirus cases across the country are 7,529 including 6,634 active cases. So far, 652 patients have either been cured or discharged while 242 deaths have been recorded in the country, as per data provided by the Ministry of Health on Saturday evening.

New Delhi, Jun 15: With an increase of 11,502 cases in the past 24 hours, the COVID-19 count in India reached 3,32,424 on Monday, according to the Union Health and Family Welfare Ministry.

The spike is marginally lower than the highest-ever spike of 11,929 new cases the country registered a day earlier.

With 325 deaths being reported from across the country, the toll due to COVID-19 has now reached 9,520.

The COVID-19 count includes 1,53,106 active cases while 1,69,798 patients have been cured and discharged or migrated so far.

Maharashtra with 1,07,958 cases continues to be the worst-affected state in the country with 53,030 active cases while 50,978 patients have been cured and discharged in the state so far. 3,950 deaths have been reported due to the infection so far from Maharashtra.

It is followed by Tamil Nadu with 44,661 cases and the national capital with 41,182 confirmed cases.