Pollutant Drops in Wuhan (IMAGE) NASA/Goddard Space Flight Center Caption Above image: Nitrogen dioxide levels often dip during Lunar New Year celebrations in China and much of Asia, and then rebound. But no rebound was evident this year over Wuhan, China where the virus was first reported, and nitrogen dioxide levels remained much lower than in 2019. More: https://earthobservatory.nasa.gov/images/146362/airborne-nitrogen-dioxide-plummets-over-china Credit NASA's Earth Observatory Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.