Recent satellite images released by the US space agency NASA have revealed that air pollution levels in China have dropped dramatically in recent days.
According to NASA, the decline in air pollution is due to a decline in economic activity across China due to the Corona virus.
Maps released by NASA show that nitrogen dioxide levels in China’s atmosphere have dropped in recent days compared to the same time last year.
This appears to be due to a decline in factories in factories in China as factory owners are shutting down as part of measures taken to prevent the spread of the Corona virus.
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80,000 confirmed cases of China Corona virus have been reported.
The virus has now spread to 50 countries, but most of the people infected with the virus are in China, with the highest number of deaths. China is also the epicenter of the outbreak.
NASA scientists say nitrogen dioxide, which is emitted from most vehicles and industrial units, was first spotted in Wuhan, a Chinese city. Wuhan is the city from which the Corona virus originated, spreading throughout China and later in other countries.
NASA says another reason for the decline in air pollution levels is the ban on transportation and business activities in some areas of China, after which many were put into quarantine.
“For the first time, I’ve seen such a dramatic decrease in air pollution,” says Fei Liu, who studies space quality at NASA’s Space Flight Center.
In a statement, he added that he witnessed a decrease in nitrogen dioxide levels in the atmosphere during the global recession in 2008, but the decline was very gradual.
NASA says that air pollution levels in China in the past are seen in early January and early February when there are public holidays in connection with the new Chinese year.
But as the New Year’s celebrations end, this level usually rises again.
Fei Liu says that “the (pollution) reduction rate is significantly higher than in previous years and the duration is longer.”
I am not surprised (at the decline) because many cities across the country have taken steps to minimize the spread of the virus.