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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, Jun 30: With a spike of 18,522 COVID-19 cases in the last 24 hours, India's coronavirus count now stand at 5,66,840, said the Union Health and Family Welfare Ministry on Tuesday.

According to the Ministry, 418 deaths due to COVID-19 were reported in the last 24 hours. The number of deaths in the country now stands at 16,893.

There are 2,15,125 active coronavirus cases in the country while the number of cured/discharged patients stands at 3,34,821 and one patient migrated.

As per the Ministry, Maharashtra is the worst-hit state with regard to the COVID-19 cases and has reported 1,69,883 cases, including 73, 313 active cases 88,960 cured/discharged patients and 7,610 fatalities.

Tamil Nadu has a total of 86,224 cases including 1,141 deaths. Delhi's COVID-19 count stands at 85,161 cases and 2,680 fatalities.

The total number of samples tested up to 29 June is 86,08,654 of which 2,10,292 samples were tested yesterday, informed the Indian Council of Medical Research.

Lucknow, Jan 12: The controversy over renowned Pakistani poet Faiz Ahmad Faiz's iconic poem 'Hum dekhenge' may have caused an upheaval in the literary world but it has also helped in resurrecting the famous poet for the young generations.

Students and young professionals are making a beeline for books on Faiz, his biography and his poems and book sellers are ordering supplies of Faiz books.

"Earlier, we sold hardly one book in a month or on Faiz but after the controversy, people are curious to know more about the poet and his poems. We have placed orders for the entire literary range on Faiz Ahmad Faiz," said a leading book seller in Hazratganj in Lucknow.

The bookseller said that the highest demand was for books written in Devnagri script.

"Not many in the young generation can read or write Urdu so they prefer Devnagri," the book seller said.

In Kanpur, most of the leading bookshops have already run out of stocks and book stalls in the ongoing Handloom Expo are drawing huge crowds for Faiz books.

Suchita Srivastava, B.Ed student in Kanpur said, "I have never been fond of Urdu poetry because I do not understand much of the language but after the controversy, I want to read poems of Faiz to understand what he wanted to say. I am taking help of Google to understand difficult words in Urdu."

Krishna Rao, another student at the Chandra Shekhar Azad University of Agriculture and Technology, said that since books on Faiz had been sold out, he had ordered a Kindle edition and was reading them.

"Reading his poems actually widens one's perspective of things and becomes even more precious if you take into account the time and context in which they were written," he said.