China moving ahead, talking about temples and mosques will waste our time: Ex-Navy chief

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.

Jaipur, Mar 11: A 85-year-old man in Jaipur, who had returned from Dubai on February 28, has tested positive for coronavirus, a state government official said on Wednesday.

He was found presumptive positive in the first test on Tuesday and hence, a second test was conducted with fresh samples, the reports of which arrived late Tuesday night, Additional Chief Secretary, Medical and Health, Rohit Kumar Singh, said.

“The man who travelled to Dubai has been tested positive for coronavirus. It has been confirmed now,” Singh said.

“We have also got the manifest of the Spicejet flight he took from Dubai to Jaipur and are doing due diligence on that,” the official said, adding that intense contact tracing was underway.

The man has been kept in isolation at the SMS Hospital here.

“The man came to the hospital on Monday with symptoms of the virus. After the first test, his wife and son too have been kept in isolation at the hospital. The two, however, do not have coronavirus affliction symptoms,” Singh said.

A total of 235 people who came in contact with the octogenarian and his family have already been traced and are being monitored, he said.

Other contacts are also being traced, Singh added.

An Italian couple, who tested positive for COVID-19 last week, are also admitted in the hospital but their condition is improving, he said.

May 30: A Delhi court on Saturday granted interim bail for 10 days to former municipal councillor from the Congress Ishrat Jahan, who has been booked under the stringent Unlawful Activities (Prevention) Act, to get married.

She has been booked under the anti-terror law in a case related to communal violence in northeast Delhi in February.

Additional Sessions Judge Dharmender Rana granted the interim relief from June 10 to June 19 to Jahan on furnishing two sureties of Rs 1 lakh.

The court directed her not to tamper with any evidence or influence the witnesses in the case.

According to the interim bail plea, filed through advocates S K Sharma and Lalit Valeecha, Jahan's marriage was fixed in 2018 for June 12, 2020.

The plea further said that Jahan would not tamper with any evidence or influence the witnesses if granted bail.

The petition, also filed through advocates Tushar Anand and Manu Prabhakar, claimed that Jahan has been falsely implicated in the case.

It alleged that upon bare perusal of the contents of the FIR, no incident of violence can be attributed to her and the wild and baseless allegations made against her were not only irresponsible and false, but also caused serious harm to her reputation.

Jahan, who is also an advocate, was only a supporter of ongoing peaceful protests and it was one of the fundamental rights of the citizens to protest and register their dissent against any unreasonable measure of the government, the plea said.

Besides Jahan, Jamia Millia Islamia University students Asif Iqbal Tanha, Gulfisha Khatoon, Jamia Coordination Committee members Safoora Zargar, Meeran Haider, president of Jamia Alumni Association Shifa-Ur-Rehman, suspended AAP councillor Tahir Hussain, activist Khalid Safi, JNU student Natasha Narwal and former student leader Umar Khalid have also been booked under the anti-terror law in the case.

The police had claimed in the FIR that Khalid and his associates had instigated people to start riots in the area and it was a "premeditated conspiracy".

Communal clashes had broken out in northeast Delhi on February 24 after violence between citizenship law supporters and protesters spiralled out of control, leaving at least 53 people dead and around 200 injured.