Rajya Sabha MP Sanjay Singh, suspect in 1988 Syed Modi murder, quits Cong to join BJP

New Delhi, Jul 22: With a spike of 37,724 cases and 648 deaths reported in the last 24 hours, the total number of COVID-19 cases in India stands at 11,92,915, according to the Union Ministry of Health and Family Welfare.

The total number of cases includes 4,11,133 active cases, 7,53,050 cured/discharged/migrated and 28,732 deaths, the Health Ministry informed.

Maharashtra remains the worst affected state with 3,27,031 cases and 12,276 deaths.
The second worst-hit state, Tamil Nadu has reported 1,80,643 COVID-19 cases so far while Delhi has reported 1,25,096 cases, according to the Ministry.

Other states that have witnessed a higher number of COVID-19 positive cases include, Andhra Pradesh with 58,668 cases, Karnataka with 71,069 while Telangana has reported 47,705 COVID-19 positive cases.

Meanwhile, as per the information provided by the Indian Council of Medical Research (ICMR), the total number of samples tested up to July 21 is 1,47,24, 546 including 3,43,243 samples tested yesterday.

Thiruvananthapuram, May 25: About 100 people, including a Magistrate and some police personnel, have been asked to go into quarantine after an accused, who was produced before a lower court here following his arrest, later testedpositive, officials said on Monday. The accused, who was arrested along with two others in connection with a case relating to illicit liquor transportation two days ago, had been shifted to thePoojapura central jail after he was remanded to judicial custody.

With his sample testing positive on Sunday, theman has been sent to a designated COVID-19 hospital. The Nedumangad court magistrate, before whom he was produced, 34 police personnel, including a circle inspector, who were on duty at the Venjaramoodu police station when the accused was broughtafter his arrest, some employees of a government hospital where his swab sample was taken and 12 officials of thePoojapura central jail have gone into quarantine, police sources said.

. Meanwhile, Malayalam film actor Suraj Venjaramoodu and Vamanapuram MLA D K Murali (CPI) are under self-imposed quarantineas they had attended a function in which the circle inspector had taken part.

Two days ago, a car in which illicit liqour was being transported had hit a policeman and sped away, but people managed to stop the vehicle and the three accused, who were in an inebriated state, were arrested, sources said.

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.