Thick pearly white haze hung heavily over much of Eastern China on October 25, 2004, when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this image. The haze has lingered over China for much of October, trapped in place largely by a string of typhoons moving through the East China Sea. The remnants of the most recent typhoon, Nock-ten, is visible along the right edge of the image. The thickest smog is in the north, near China’s capital, Beijing, top right. The most current image of the Beijing region as well as additional resolutions of this image are available from the MODIS Rapid Response System.
Incomplete burning of carbon-based fuels like coal and wood leads to a build-up of haze in eastern China, where mountains and weather patterns can trap it for days at a time. This Terra MODIS image is a comparison of a hazy day and a relatively clear day in February 2005.