As People Stay Home, Air Pollution In North India At 20-Year Low: NASA

News Network
April 23, 2020

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.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
Agencies
July 7,2020

Bhopal, Jul 7: Anil Mishra, personal assistant to BJP Rajya Sabha MP Jyotiraditya Scindia, has tested positive.

He has been accompanying Scindia throughout his tours post-corona infection.

His contact trail is longer than that of Scindia. He has been in touch with Chief Minister Shivraj Singh Chouhan.

Mishra was present during Scindia's meetings with the MLAs and the swearing in ceremony of the MP ministry on July 2.

BJP sources say there is concern over the possible list of people who will be put in isolation to check the spread of the virus.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
Agencies
June 30,2020

United Nations, Jun 30: India accounts for 45.8 million of the world's 142.6 million "missing females" over the past 50 years, a report by the United Nations said on Tuesday, noting that the country along with China form the majority of such women globally.

The State of World Population 2020 report released on Tuesday by the United Nations Population Fund (UNFPA), the world organisation's sexual and reproductive health agency, said that the number of missing women has more than doubled over the past 50 years - from 61 million in 1970 to a cumulative 142.6 million in 2020.

Of this global figure, India accounted for 45.8 million missing females as of 2020 and China accounted for 72.3 million.

Missing females are women missing from the population at given dates due to the cumulative effect of postnatal and prenatal sex selection in the past, the agency said.

Between 2013 and 2017, about 460,000 girls in India were missing' at birth each year. According to one analysis, gender-biased sex selection accounts for about two-thirds of the total missing girls, and post-birth female mortality accounts for about one-third, the report said.

Citing data by experts, it said that China and India together account for about 90-95 per cent of the estimated 1.2 million to 1.5 million missing female births annually worldwide due to gender-biased (prenatal) sex selection.

The two countries also account for the largest number of births each year, it said.

The report cites data by Alkema, Leontine and others, 2014 National, Regional, and Global Sex Ratios of Infant, Child, and under-5 Mortality and Identification of Countries with Outlying Ratios: A Systematic Assessment' from The Lancet Global Health.

According to their analysis, India has the highest rate of excess female deaths, 13.5 per 1,000 female births, which suggests that an estimated one in nine deaths of females below the age of 5 may be attributed to postnatal sex selection.

The report notes that governments have also taken action to address the root causes of sex selection. India and Vietnam have included campaigns that target gender stereotypes to change attitudes and open the door to new norms and behaviours.

They spotlight the importance of daughters and highlight how girls and women have changed society for the better. Campaigns that celebrate women's progress and achievements may resonate more where daughter-only families can be shown to be prospering, it said.

The report said that successful education-related interventions include the provision of cash transfers conditional on school attendance; or support to cover the costs of school fees, books, uniforms and supplies, taking note of successful cash-transfer initiatives such as Apni Beti Apna Dhan' in India.

It said that preference for a male child manifested in sex selection has led to dramatic, long-term shifts in the proportions of women and men in the populations of some countries.

This demographic imbalance will have an inevitable impact on marriage systems. In countries where marriage is nearly universal, many men may need to delay or forego marriage because they will be unable to find a spouse, the report said.

This so-called "marriage squeeze", where prospective grooms outnumber prospective brides, has already been observed in some countries and affects mostly young men from lower economic strata.

"At the same time, the marriage squeeze could result in more child marriages, the report said citing experts.

Some studies suggest that the marriage squeeze will peak in India in 2055. The proportion of men who are still single at the age of 50 is forecast to rise after 2050 in India to 10 per cent, it said.

The UN report said that every year, millions of girls globally are subjected to practices that harm them physically and emotionally, with the full knowledge and consent of their families, friends and communities.

At least 19 harmful practices, ranging from breast ironing to virginity testing, are considered human rights violations, according to the UNFPA report, which focuses on the three most prevalent ones: female genital mutilation, child marriage, and extreme bias against daughters in favour of sons.

Harmful practices against girls cause profound and lasting trauma, robbing them of their right to reach their full potential, says UNFPA Executive Director Dr. Natalia Kanem.

This year, an estimated 4.1 million girls will be subjected to female genital mutilation. Today, 33,000 girls under age 18 will be forced into marriages, usually to much older men and an extreme preference for sons over daughters in some countries has fuelled gender-biased sex selection or extreme neglect that leads to their death as children, resulting in the 140 million missing females.

The report said that ending child marriage and female genital mutilation worldwide is possible within 10 years by scaling up efforts to keep girls in school longer and teach them life skills and to engage men and boys in social change.

Investments totalling USD 3.4 billion a year through 2030 would end these two harmful practices and end the suffering of an estimated 84 million girls, it said.

A recent analysis revealed that if services and programmes remain shuttered for six months due to the COVID-19 pandemic, an additional 13 million girls may be forced into marriage and 2 million more girls may be subjected to female genital mutilation between now and 2030.

The pandemic both makes our job harder and more urgent as so many more girls are now at risk, Kanem said.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
Agencies
June 19,2020

New Delhi, Jun 19: Delhi minister Satyendar Jain's health has deteriorated further. He is infected with the coronavirus. Jain has also been diagnosed with pneumonia. He is being shifted to an ICU.  According to doctors, Jain is now kept full-time on oxygen support as his oxygen saturation level has dipped.  

Jain was admitted to Rajiv Gandhi Super Speciality Hospital early Tuesday after running high fever and suffering a sudden drop in oxygen level. The 55-year-old leader's test result came positive on Wednesday evening after a second test. Jain was brought to the hospital and was administered a test for the novel coronavirus infection on Tuesday morning, for which he tested negative. But he still ran fever and showed symptoms, so another test was done after 24 hours of the first.

He will now be shifted Max Hospital in Saket and administered plasma therapy. 

Union Home Minister Amit Shah has also wished for Jain's speedy recovery.

On Thursday, Delhi Deputy Chief Minister Manish Sisodia took over the charge of health, PWD, power and other departments held by Jain. Jain will remain the cabinet minister without any portfolio in the Arvind Kejriwal government until he recovers. 

On Sunday, Jain attended a high-level meeting on the coronavirus situation in the national capital, chaired by Union Home Minister Amit Shah, which was also attended by Delhi Lt Governor Anil Baijal, Kejriwal, Sisodia and Union Health Minister Harsh Vardhan.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.