Rahul Gandhi gets bail in RSS defamation case

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, Mar 23: The central government has asked state governments to take strict action against violators of the coronavirus lockdown being enforced in 80 districts across the country.

An official statement released on Monday said there will be a total lockdown in 80 districts where coronavirus cases have been reported. The shutdown will end on March 31.

Delhi's borders will remain sealed during the lockdown, but essential services related to health, food, water and power supply will continue, and 25 per cent of the DTC buses will run to transport people associated with essential services.

Prime Minister Narendra Modi earlier on Monday appealed to state governments to ensure that rules and regulations of the coronavirus lockdown are enforced as he noted that many people were not taking the measure seriously.

"Many people are still not taking the lockdown seriously. Please save yourself, save your family, follow the instructions seriously. I request state governments to ensure rules and laws are followed," he said in a tweet in Hindi.

Bijnor, Feb 6: Apprehensions over the Citizenship Amendment Act (CAA) and the National Register of Citizens (NRC) are now so strong that a team of economic enumerators were allegedly manhandled in Uttar Pradesh's Bijnor district and faced stiff resistance from the people.

A team of the economic census enumerators in Bijnor, on Wednesday, sent a letter to the District Magistrate narrating the difficulties they are facing in some parts "due to misinformation".

District magistrate Ramakant Pandey, when contacted, said that he had asked the department concerned to complete the work on time. "If teams are facing any problems, we will sort it out at once. No hurdle in economic census will be tolerated," he said.

According to District Economic and Statistics Officer, Harendra Malik: "Our teams are facing protests in minority-dominated areas as people are linking it to the NRC. Some team members were manhandled.

"We have now asked village heads and municipality chairmen to help our teams in the survey and convince the people. Our teams are trying to convince them that it is a routine work which is being carried out for years. It has nothing to do with the NRC or CAA."

He further said that they plan to hold a series of meetings with people's representatives, including village heads and chairmen, so that they could put an end to this confusion.

The seventh economic census was flagged off in Bijnor by District Magistrate Ramakant Pandey on January 6. There are around 3,000 enumerators and 569 supervisors engaged in the census being carried out under the supervision of economic and statistics department. It is expected to be completed by March 31.

The economic census is aimed at collecting data about the financial status of people engaged in unorganised sector.

Meanwhile, the areas where the enumerators are facing stiff resistance include Kalhari village in Najibabad block, Amipur Narain village in Mohammadpur Devmal block, Anisa Nangli village in Dwarka block and the Mirzapur Bella village in Jalilpur block.