SC asks govt to explore feasibility of Japanese tech to fight air pollution

New Delhi, May 23: Carrying a sack full of belongings and a backpack on shoulders daily wager Mohammed Sunny and his friend Mohammed Danish are determined to reach home for Eid in Bihar's Araria district, facing all odds stacked up against them.

Shahjehanpur native Adesh Singh with his wife and three little children, who left their residence in south Delhi three days ago, are still scrambling to reach home, haggling with taxi drivers, to take them to their home town charging a reasonable fare.

This was among the many scenes of migrants' life on Friday at Delhi-Uttar Pradesh border touching Ghazipur in east Delhi who are struggling to make their way to their native places amid a COVID-19-induced lockdown across the country.

"We left home three days ago near Chhatarpur, we have walked and rested by roadsides, people gave us food on the way, so we survived. Now, we just want to reach home, we can't survive in Delhi," Manju Singh, wife of Adesh Singh told PTI as she waited at the UP Gate to get a taxi to cross the border on way to her home.

Their three children Alok (12), Ankesh (8) and Rupali (9), all wearing simple masks, were seen squatting on the roadside beside their luggage as their wearied parents, using cloths to cover their nose and mouth, bargained with taxi drivers to take them home, without charging much above the regular fare, saying they "did not have much cash left".

Police personnel could be seen asking many migrants who were marching on foot towards the inter-state border, to turn back.

Many did, but not Sunny and Danish, who feel if "Allah wants us to reach home, we surely will".

Both of them worked at a chemical plant in Delhi, and said, they have been "kicked out" after the lockdown was imposed, making their survival difficult in the national capital.

"We don't have money to pay rent now, or buy food, we have to go home now, what option do we have," Sunny said.

Danish alleged that the poor have been "abandoned" by the government and left in the lurch.

"The government has money to bring home Indians stranded abroad, but can't take home the Indians who have been toiling hard all these years. Is it fair to us," he asked.

"But, Inshallah, we will reach home if the Almighty wants us to, and will be joining our family for Eid, though it will hardly be a celebration this time. But, we want the comfort of being with our family at least," Sunny said.

Eid which marks the end of the holy Ramzan month, will be celebrated either on Sunday or Monday, depending on sighting of the moon.

Lakhs of migrant labourers stranded away from home in Delhi and other big cities have been attempting to reach home in the last two months, a large number of them walking on foot after they found no mode of conveyance.

The coronavirus death toll in Delhi has mounted to 208, while 660 fresh cases of COVID-19 infection reported on Friday, the highest single-day spike here, took the total in the city to 12,319.

Roshan Shrivastav (19), his nephew Shivam Shrivastav (19) and friend Prince Gupta (21), all hailing from Siwan in Bihar, were seen standing on a pavement after being told by the police to turn back from the barricade posted bear the Delhi-UP border.

"We live together in Baljeet Nagar in West Delhi, in a single room. I had come from Bihar after Holi, seeking a job, but then I got stuck in lockdown here without a job. Whatever money I had brought, and Rs 10,000 our parents had sent online, all has got exhausted in these three months," Roshan lamented.

"Our landlord has been very kind, and didn't even ask for any rent after the lockdown, but how long can we survive on charity. And, I don't like being dependent on someone, so we want to go home," he said.

Roshan said, he and Shivam, both also write and sing songs in Hindi and their native tongue Bhojpuri.

"We have written a few lines on lockdown crisis too -- 'Hum mazdooran ke ghar bhejwa da sarkar, nahin to ketna log hiyan par ho jai bimar' (please send us home or else many would fall sick here)," Shivam said, as he stood in scorching heat of May, carrying his leftover cash in pocket and hope in heart. 

New Delhi, Jun 13: India's COVID-19 tally on Saturday witnessed its highest-ever spike of 11,458 cases, according to the Union Ministry of Health and Family Welfare (MoHFW).

A total of 386 deaths have been reported due to the infection during the last 24 hours.

The total number of coronavirus cases in the country now stands at 3,08,993 including 1,45,779 active cases 1,54,330 cured/discharged/migrated and 8,884 deaths.

COVID-19 cases in Maharashtra continue to soar with the number reaching 101141. Tamil Nadu's coronavirus count stands at 40,698 while cases in Delhi reached 36,824.

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.