Embarrassment for Congress: Sharad Pawar backs Ramdev

New Delhi, Jul 19: With the highest single-day spike of 38,902 cases reported in the last 24 hours, India's total COVID-19 tally on Sunday reached 10,77,618, informed the Union Health and Family Welfare Ministry on Sunday.

The death toll has gone up to 26,816 with 543 fatalities reported in the last 24 hours.

The Health Ministry said the total number of cases includes 3,73,379 active cases and 6,77,423 patients have been cured/discharged/migrated.

Maharashtra remains the worst affected state with 3,00,937 cases reported until Saturday.
Meanwhile, as per the information provided by the Indian Council of Medical Research (ICMR), 1,34,33,742 samples have been tested for COVID-19 till July 18, of these 3,61,024 samples were tested yesterday.

Washington, Apr 23: Air pollution over northern India has plummeted to a 20-year-low for this time of the year, according to satellite data published by US space agency National Aeronautics and Space Administration (NASA).
The US space agency's satellite sensors observed aerosol levels at a 20-year low post the countrywide lockdown, implemented to slow the spread of the novel coronavirus.

"We knew we would see changes in atmospheric composition in many places during the lockdown," said Pawan Gupta, a Universities Space Research Association (USRA) scientist at NASA''s Marshall Space Flight Center. "But I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year," added Mr Gupta.

Acting Assistant Secretary of State for South and Central Asia Alice G Wells tweeted, "These images from NASA were taken each spring starting in 2016 and show a 20-year low in airborne particle levels over India. When India and the world are ready to work and travel again, let's not forget that collaborative action can result in cleaner air."

The data published with maps show aerosol optical depth (AOD) in 2020 compared to the average for 2016-2019. Aerosol optical depth is a measure of how light is absorbed or reflected by airborne particles as it travels through the atmosphere.

If aerosols are concentrated near the surface, an optical depth of 1 or above indicates very hazy conditions. An optical depth, or thickness, of less than 0.1 over the entire atmospheric vertical column is considered "clean." The data were retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite.

In the first few days of the lockdown, it was difficult to observe a change in the pollution signature. "We saw an aerosol decrease in the first week of the shutdown, but that was due to a combination of rain and the lockdown," said Mr Gupta.

Around March 27, heavy rain poured over vast areas of northern India and helped clear the air of aerosols. Aerosol concentrations usually increase again after such heavy precipitation.

"After the rainfall, I was really impressed that aerosol levels did not go up and return to normal. We saw a gradual decrease and things have been staying at the level we might expect without anthropogenic emissions," Mr Gupta said.

On March 25, the Indian government placed its 1.3 billion citizens under a strict lockdown to reduce the spread of COVID-19. The countrywide mandate decreased activity at factories and severely reduced car, bus, truck and airplane traffic. Every year, aerosols from anthropogenic (human-made) sources contribute to unhealthy levels of air pollution in many Indian cities.

Aerosols are tiny solid and liquid particles suspended in the air that reduce visibility and can damage the human lungs and heart.

In southern India though, the story is a little hazier. Satellite data show aerosol levels have not yet decreased to the same extent. In fact, levels seem to be slightly higher than in the past four years. The reasons are unclear but could be related to recent weather patterns, agricultural fires, winds or other factors.

"This a model scientific experiment," Robert Levy, program leader for NASA's MODIS aerosol products, said about the lockdown and its effects on pollution.

"We have a unique opportunity to learn how the atmosphere reacts to sharp and sudden reductions in emissions from certain sectors. This can help us separate how natural and human sources of aerosols affect the atmosphere," Mr Levy added.

New Delhi, Jun 6: With 9,887 new positive cases reported in the last 24 hours, India's COVID-19 count touched 2,36,657 on Saturday surpassing Italy's latest tally of over 2.34 lakh, taking India to the sixth spot among countries with the highest caseloads of the virus.

The Union Ministry of Health and Family Welfare (MoHFW) said that India registered a spike of 9887 new cases and 294 deaths in the past 24 hours taking the tally to 1,15,942 active cases and 6642 deaths.

Today's count was the highest single-day spike in the country, which has now overtaken Italy, according to the tally posted by the Johns Hopkins University which posted that globally the coronavirus had infected over 66.64 lakh people and claimed over 3.91 lakh lives so far.

In india, the MoHFW informed that 1,14,073 persons have been cured/discharged/migrated so far.

Maharashtra remains the worst-hit State as the total number of COVID-19 positive cases reached 80,229. While the total number of active cases in the state stands at 42,224.

In Tamil Nadu, 28,694 cases have been detected so far while Delhi has reported 26,334 coronavirus cases.