Bookings for select destinations in USA, Canada, UK and Europe under Phase3 of Vande Bharat Mission open

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.

Lucknow, May 25: Migrant workers who wish to return to their places of work after the lockdown is lifted, may no longer find the going easy now.

Uttar Pradesh Chief Minister Yogi Adityanath has said that his government will lay down stringent conditions for ensuring social security of workers from the state who are hired by other states.

"Other states will also need to seek permission from his government before engaging workers from UP," he said while addressing a webinar on Sunday.

The Chief Minister stated, "If any state wants manpower, the state government will have to guarantee social security and insurance of the workers. Without our permission they will not be able to take our people," he said.

He said all migrant workers who have returned to the state were being registered and their skills were being mapped by the administration. Any state or entity interested in hiring them will need to take care of their social, legal and monetary rights.

Speaking about the challenges his administration had faced during this crisis, the Chief Minister said, "When I talk of Uttar Pradesh, then it is natural to say that it is the state with the highest population. We have faced several challenges during the lockdown. At the beginning, migrant workers and labourers started coming to the state. We deployed 16,000 buses and within 24 hours, they were brought back to their home districts and arrangements were made to screen them."

Yogi Adityanath took a dig at the opposition leaders for the migrant crisis. "During the lockdown, if those who now raise slogans for the poor had honestly cared about workers, then migration could have been stopped. This did not happen. No facilities were given. At several places, electricity connections were cut, so people had to migrate." he said.

Legal experts, meanwhile said that requiring government permission for employing people could face a legal challenge as the Constitution guarantees the freedom of movement and residence and employment of workers.

"Article 19 (1)(D) guarantees freedom to move freely, and 19(1)(e) the freedom to settled in any part of the countryso the need for permission can be legally challenged," said a senior lawyer.

Tehran, May 17: As many as 310 Indian pilgrims departed from Tehran, Iran for New Delhi by Mahan Air on Saturday. The group hails from Ladakh and will later go home to Leh by special flights.

"A group of 310 Indian pilgrims, hailing from Ladakh, departed Tehran for New Delhi by Mahan Air tonight (16th May). 
Thereafter, they'll go home to Leh by special flights," Embassy of India in Iran wrote on Twitter.

On Saturday, Minister of Civil Aviation, Hardeep Singh Puri said that over 13,000 people have returned under the Vande Bharat repatriation mission till date.

"More than 13,000 people have already returned on various flights under Mission Vande Bharat so far. Today, 812 citizens have returned on Air India and AirIndia Express flights from Newark, London, Dubai and Abu Dhabi. More flights continue," Puri wrote on Twitter.

Vande Bharat Mission, which started on May 7 to bring back stranded Indian nationals back home from other countries, initiated its second phase of the operation from Saturday (May 16) by sending three Air India flights to Dubai and Abu Dhabi.

Under the second phase of Vande Bharat Mission a total of 149 flights, including feeder flights, will be operated to bring back Indians from 40 countries.