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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.

May 27: At a time when India is struggling with the deadly coronavirus, huge swarms of locusts in many states has bought nightmares to the farmers.

Experts warn of extensive crop losses if authorities fail to curb the fast-spreading swarms by June when monsoon rains spur rice, cane, corn, cotton, and soybean sowing.

Locusts entered India after traveling from Africa through Yemen, Iran and Pakistan.

After massive devastation in Pakistan, t swarms of locusts entered India through Rajasthan and Gujarat. The number is so large that the farmers and authorities are feeling helpless in tackling the threat.

The situation has become more alarming as the locusts is spreading across the country at an extremely fast rate. After badly affecting the crops in Rajasthan, Gujarat, Maharashtra, and Madhya Pradesh, the swarm of locust have now entered Uttar Pradesh.

In Rajasthan alone, the locust attack has damaged 5 lakh hectares of crop and nearly 17 districts of Madhya Pradesh have also seen their terror. Earlier from May 2019 to February 2020, too, the locust swarms entered India several times.

Speaking on the current situation, Dr Ram Pravesh, District Agricultural Officer, Agra, Uttar Pradesh said the Department of Agriculture is working with farmers in dealing with the situation. He urged the farmers to inform their Mandal Krishi Adhikari if they require any help.

India's largest-ever locust attack was in 1993 when more than three lakh hectares of cultivated land were completely destroyed.

Earlier in 2020, farmers salvaged their wheat and oilseed crops from a previous locust scourge.

New Delhi, June 21: Diesel prices rise to record high after 60 paise hike in rates, petrol up 35 paise; rates up by Rs 8.88 and Rs 7.97 in 15 days.

Petrol price in Delhi was hiked to Rs 79.23 per litre from Rs 78.88, while diesel rates were increased to Rs 78.27 a litre from Rs 77.67, according to a price notification of state oil marketing companies. 

In Bengaluru, petrol will be costlier by 37 paise at Rs 81.81 per litre, while diesel will cost 57 paise more per litre at Rs 74.43.

Rates have been increased across the country and vary from state to state depending on the incidence of local sales tax or VAT.

The 15th daily increase in rates since oil companies on June 7 restarted revising prices in line with costs after ending an 82-day hiatus in rate revision, has taken diesel prices to a new high. The petrol price too is at a two-year high.

Over 63 per cent of the retail selling price of diesel is taxes. Out of the total tax incidence of Rs 49.43 per litre, Rs 31.83 is by way of central excise and Rs 17.60 is VAT. 

Petrol in Mumbai costs Rs 86.04 per litre and diesel is priced at Rs 76.69.

Prior to the current rally, the peak diesel rates had touched was on October 16, 2018 when prices had climbed to Rs 75.69 per litre in Delhi. The highest-ever petrol price was on October 4, 2018 when rates soared to Rs 84 a litre in Delhi.

When rates had peaked in October 2018, the government had cut excise duty on petrol and diesel by Rs 1.50 per litre each. State-owned oil companies were asked to absorb another Re 1 a litre to help cut retail rates by Rs 2.50 a litre.

Oil companies had quickly recouped the Re 1 and the government in July 2019 raised excise duty by Rs 2 a litre.

The government on March 14 hiked excise duty on petrol and diesel by Rs 3 per litre each and then again on May 5 by a record Rs 10 per litre in case of petrol and Rs 13 on diesel. The two hikes gave the government Rs 2 lakh crore in additional tax revenues.

Oil PSUs Indian Oil Corp (IOC), Bharat Petroleum Corp Ltd (BPCL) and Hindustan Petroleum Corp Ltd (HPCL), instead of passing on the excise duty hikes to customers, adjusted them against the fall in the retail rates that was warranted because of a decline in international oil prices to two-decade lows.

International oil prices have since rebounded and oil firms are now adjusting retail rates in line with them.

In 15 days of hike, petrol price has gone up by Rs 7.97 per litre and diesel by Rs 8.88 a litre.