Los Angeles Smog (IMAGE) University of Colorado at Boulder Caption A smoggy view of Los Angeles, 2010. Scientists captured this image from a research aircraft that was part of an intense mission, CALNEX, to study the region's air quality and climate-related challenges. Among the findings now emerging from that effort: Emissions from common household and industrial products including perfumes, pesticides and paints now rival motor vehicle emissions as the top source of the city's air pollution. Credit Raul Alvarez / NOAA. 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.