Experts say China's air pollution has fallen sharply due to the closure of the new coronavirus



NASA and European Space Agency (ESA) satellite images have shown that air pollution in China has been declining since the outbreak of the new coronavirus.

Airborne Nitrogen Dioxide Plummets Over China

https://www.earthobservatory.nasa.gov/images/146362/airborne-nitrogen-dioxide-plummets-over-china

NASA images show a decrease in China's pollution related to coronavirus-CNN
https://edition.cnn.com/2020/03/01/world/nasa-china-pollution-coronavirus-trnd-scn/index.html

Many factories have been shut down due to the effects of the new coronavirus that is prevalent around the world. The first blockade of such new coronavirus was taken by Chinese authorities. The closure of transportation and local businesses to and from Wuhan on January 23, 2020 has affected the lives of many people.

NASA and ESA satellite images show that China's nitrogen dioxide levels, which were observed between January 1 and 20 before the blockade was taken, dropped sharply from February 10 to 25. I understand. The satellite images below show air pollution on the left from January 1 to 20, 2020 and on the right from February 10 to 25, 2020. Closer to white means lower nitrogen dioxide, closer to red means higher nitrogen dioxide.



The observed decrease in nitrogen dioxide coincides with the Lunar New Year celebration, but past observations have shown that it decreases slightly during Lunar New Year but increases after the celebration. Was. Researchers believe that this fall includes more than the effects of the Lunar New Year and weather, although it believes it also includes the effects of the Lunar New Year.

According to researchers, the decrease in air pollution was first seen in Wuhan, where the outbreak of the new coronavirus began. Below are images showing pollution around Wuhan, from the top left, January 1-20, 2019, January 28-February 9, 2019 February 10-25. From the bottom left, it is from 1 to 20 2020, from 28 to 9 February 2019, from 10 to 25 February 2019. In 2019, pollution will increase at the end of the Lunar New Year, but will not increase in 2020. Due to new environmental regulations by the Chinese government, the overall value in 2020 will be lower than in 2019.



Nitrogen dioxide is emitted from cars, power plants, and industrial facilities and is thought to cause coughs, asthma, and breathing difficulties.

'This is the first time such a dramatic decrease has been seen in a wide range due to a particular event,' commented Fei Liu of NASA Goddard Space Flight Center.

in Note, Posted by logq_fa