Washington, March 1 NASA and the European Space Agency's pollution monitoring satellites have captured a dramatic decline in air pollution levels over China owing to drop in manufacturing activities amid new coronavirus (COVID-19) outbreak.
NASA maps show falling levels of nitrogen dioxide over China last month due to economic slowdown caused by the virus.
"There is evidence that the change is at least partly related to the economic slowdown following the outbreak of coronavirus," the US space agency said in a statement on Saturday.
According to research scientist Fei Liu, "This is the first time I have seen such a dramatic drop-off over such a wide area for a specific event".
There has been a considerable decline in China's factory activity as manufacturers shunned work to contain the spread of coronavirus.
NASA's Earth Observatory said that "While the Lunar New Year may have played a role in the recent drop-off, researchers believe the decrease is more than a holiday effect or weather-related variation".
The death toll due to the novel coronavirus outbreak in China has increased to 2,870, health authorities said on Sunday, while the number of confirmed cases has increased to 79,824.
This is, however, not the first time air pollution levels have come down so drastically in China.
"Scientists also observed a significant reduction around Beijing during the 2008 Olympics, but the effect was mostly localised around that city, and pollution levels rose again once the Olympics ended," said NASA.
( With inputs from IANS )