But this year the usual mass movement of humanity when people travel to be with family didn't happen either.Even taking into account the usual drop in NO2 associated with this time of year, levels have fallen 21% below the average for 2015 to 2019.Dr Fei Liu, lead author of the study and NASA researcher, said: "This is the first time I have seen such a dramatic drop-off over such a wide area for a specific event. From space, you can see the impact of a reduction in nitrogen dioxide over Wuhan in Hubei province. February 10 - 25, 2020 PNG NASA and European Space Agency (ESA) pollution monitoring satellites have detected significant decreases in nitrogen dioxide (NO 2) over China. (CNN) Satellite images released by NASA and the European Space Agency reveal that air pollution over China has gone down since the coronavirus … New NASA Satellite Maps Show Human Fingerprint on Global Air Quality | NASA
NASA Air Quality Analysis of the COVID-19 Pandemic. NASA Images Show Air Pollution In China Dropped During Coronavirus Slowdown China’s manufacturing has taken a hit in recent weeks as the country has halted some transportation and quarantined residents to contain the virus.
"Researchers used data from NASA's Aura satellite and the European Copernicus Sentinel-5 Precursor satellite to measure the levels of nitrogen dioxide and looked at the period of February and March this year when very strict quarantine measures were put in place.Around the time of the Chinese New Year, there is always a decline in industrial activity with people on holiday for the spring break. It can Images over Wuhan showing the pollutant numbers dropping but not rebounding.NASA scientists say the drop was initially most visible over Wuhan, where the outbreak began. Production in many factories has been halted and transportation has been restricted to prevent spreading the virus. "As the world's biggest emitter of greenhouse gases, China's use of fossil fuels is central to tackling climate change. Find out what's happening in the world as it unfolds.The satellite images have detected a significant decreases in nitrogen dioxide over China. Coronavirus: China's air pollution nearly halved during lockdown, NASA analysis reveals Chat with us in Facebook Messenger. NASA’s Air Quality group will regularly produce images from Aura's Ozone Monitoring Instrument data, showing how nitrogen dioxide (NO 2 ), an air pollutant… NASA and European Space Agency have used pollution monitoring satellites to track nitrogen dioxide levels The difference in concentration of nitrogen dioxide … "This is the first time I have seen such a dramatic drop-off over such a wide area for a specific event," said Fei Liu, an air quality researcher at NASA's Goddard Space Flight Center, Pollution does tend to go down around the Lunar New Year as many businesses close for celebrations, however, researchers believe this decrease is more than just a holiday or weather-related effect. Nitrogen dioxide is a yellow-brown gas emitted by motor vehicles, power plants, and industrial facilities.
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