BJP condemns Pragya Thakur’s remarks on Godse, drops her from defence panel

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 12: The Supreme Court on Friday slammed the Delhi government on news reports showing deplorable condition of medical wards in Delhi, where dead bodies were not only in wards, but were also found in lobby and waiting areas.

The apex court termed the situation in Delhi "horrendous, horrific and pathetic". It slammed the Arvind Kejriwal-led Delhi government for its handling of dead bodies, terming it "very sorry state of affairs".

A bench of Justices Ashok Bhushan, SK Kaul and MR Shah took suo moto cognizance of the ill-treatment being meted out to Covid patients in hospitals and also the undignified way in which dead bodies of Covid patients were being handled.

Solicitor general Tushar Mehta, representing the Centre, said there was a case in Delhi where dead bodies were found alongside patients, who were undergoing treatment.

Justice Shah questioned Mehta, "So what have you done?"

The bench termed the situation in Delhi "horrendous, horrific and pathetic", and reproached the government for patients being placed alongside stacks of dead bodies in the hospitals. The bench noted that patients' families aren't even informed about deaths and in some cases, families haven't been able to attend the last rites, too.

The bench noted that there is a problem with the way the pandemic was being fought in the national capital.

"The number of tests conducted are low in Delhi compared to Chennai and Mumbaia...Why are tests so less in Delhi?" the bench said.

"Nobody should be denied testing onn technical reasons...simplify procedure so more and more can test for Covid," said the bench.

The top court pointed out that it is the duty of the state to conduct testing so that more people know about their health status.

The top court also noted that the situation is grim even in Maharashtra, Tamil Nadu and West Bengal.

May 7: Two people, including a child, were killed and nearly 70 hospitalised after a gas leak at a chemical plant in Andhra Pradesh's Visakhapatnam in the wee hours of Thursday, officials said.

People in Gopalapatnam area, where the chemical plant, LG Polymers, is located, complained of irritation in eyes, breathlessness, nausea and rashes on their bodies.

District Collector V Vinay Chand said two people were killed due to the gas leak, while some are in a critical condition.

Close to 70 people have been admitted to the King George Hospital after for treatment, he said.

TV channels showed people lying unconscious on roads.

Teams of the National Disaster Response Force (NDRF) have rushed to the spot.

Reports said the gas leak has been contained.

Chief Minister Y S Jagan Mohan Reddy enquired about the incident and directed the Visakhapatnam district collector to ensure proper medical care for the affected people.