Muslim student leader shot dead in broad daylight; CM calls for peace

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.

Rajghat, Feb 23: The maternal uncle of Dr Kafeel Khan, who was recently arrested for allegedly making inflammatory statements during anti-CAA protests, was shot dead in front of his house at Bankatichak in Rajghat area, police said on Sunday.

Dr Nusratullah Warsi aka Dada (55), a property dealer, was shot dead on Saturday night at about 10:45 pm and an FIR against two people was filed in this connection on a written complaint of his family members.

According to police, it appears to be a case of murder due to monetary and property dispute and they are searching for both the accused.

Dr Kafeel Khan, suspended doctor of Gorakhpur BRD Medical College, was last month arrested under charges of giving a provocative speech during a protest against the CAA and NRC at Aligarh Muslim University and was later charged with the National Security Act.

Warsi on Saturday evening had gone to his lawyer Siraj Tariq's house, a few metres away from his own house, and was returning home on foot when a man shot him in his head, killing him on the spot.

"On the written complaint of family members, case of murder against one Imammuddin and Anil Sonkar has been registered and police has initiated probe and is searching for both the accused. Police met the women in their house and is interrogating them," Circle Officer VP Singh said.

Prima facie it appears to be a case of property and money dispute, he said, adding, three teams have been constituted to investigate the case and soon the accused will be caught.

Dr Kafeel Khan had last month raised apprehension in a Mumbai court about being killed in an "encounter" by the Uttar Pradesh police after claiming that he had been "falsely" implicated in the case by them.

The paediatrician had come to the limelight in 2017 when a controversy broke out after the death of over 60 children in less than a week at the BRD Medical College in Gorakhpur in Uttar Pradesh, where he was posted.

New Delhi, Feb 10: Former Jammu and Kashmir chief minister Omar Abdullah's sister on Monday moved the Supreme Court to challenge his detention under the Public Safety Act.

Senior advocate Kapil Sibal, appearing for the petitioner, mentioned the matter for urgent listing before a bench headed by Justice N V Ramana.

Sibal told the bench that they have filed a habeas corpus petition challenging the detention of Abdullah under the PSA and the matter should be heard this week.

The bench agreed for urgent listing of the matter.