Azaan from mosques causes noise pollution: Tripura governor

New Delhi, May 4: The country's manufacturing sector activity witnessed unprecedented contraction in April amid national lockdown restrictions, following which new business orders collapsed at a record pace and firms sharply reduced their staff numbers, a monthly survey said on Monday.

The headline seasonally adjusted IHS Markit India Manufacturing Purchasing Managers' Index (PMI) fell to 27.4 in April, from 51.8 in March, reflecting the sharpest deterioration in business conditions across the sector since data collection began over 15 years ago.
The index slipped into contraction mode, after remaining in the growth territory for 32 consecutive months.

In PMI parlance, a print above 50 means expansion, while a score below that denotes contraction.

Amid widespread business closures, demand conditions were severely hampered in April. New orders fell for the first time in two-and-a-half years and at the sharpest rate in the survey's history, far outpacing that seen during the global financial crisis, the survey said.

"After making it through March relatively unscathed, the Indian manufacturing sector felt the full force of the coronavirus pandemic in April," said Eliot Kerr, Economist at IHS Markit.
Panellists attributed lower production to temporary factory closures that were triggered by restrictive measures to limit the spread of COVID-19.

Export orders also witnessed a sharp decline. Following the first reduction since October 2017 during March, foreign sales fell at a quicker rate in April. "In fact, the rate of decline accelerated to the fastest since the series began over 15 years ago," the survey said.

On the employment front, deteriorating demand conditions saw manufacturers drastically cut back staff numbers in April. The reduction in employment was the quickest in the survey's history.

"In the latest survey period, record contractions in output, new orders and employment pointed to a severe deterioration in demand conditions.
“Meanwhile, there was evidence of unprecedented supply-side disruption, with input delivery times lengthening to the greatest extent since data collection began in March 2005," Kerr said.

On the prices front, both input costs and output prices were lowered markedly as suppliers and manufacturers themselves offered discounts in an attempt to secure orders.

Going ahead, sentiment regarding the 12-month outlook for production ticked up from March's recent low on hopes that demand will rebound once the COVID-19 threat has diminished and lockdown restrictions eased.

"There was a hint of positivity when looking at firms' 12-month outlooks, with sentiment towards future activity rebounding from March's record low. That said, the degree of optimism remained well below the historical average," Kerr said.

In India, the death toll due to COVID-19 rose to 1,373 and the number of cases climbed to 42,533 as on Monday, according to the health ministry.

Meanwhile, the coronavirus-induced lockdown has been extended beyond May 4, for another two weeks in the country.

New Delhi, Jun 15: A total of 1,15,519 samples of COVID-19 have been tested in the last 24 hours taking the total samples tested to 57,74,133 in the country, the Indian Council of Medical Research (ICMR) said.

"Total sample tested 57,74,133 and samples tested in the last 24 hours is 1,15,519," said ICMR.

With an increase of 11,502 cases in the past 24 hours, the COVID-19 count in India reached 3,32,424 on Monday, according to the Union Health and Family Welfare Ministry.

The COVID-19 count includes 1,53,106 active cases while 1,69,798 patients have been cured and discharged or migrated so far, and the toll due to COVID-19 has now reached 9,520.

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.