Anthony Wexler Content / Anthony Wexler Content for Â鶹´«Ã½ en Scientists trace particulate air pollution to its source /news/scientists-trace-particulate-air-pollution-its-source <p>Scientists at the University of California, Davis, have, for the first time, developed a system that can determine which types of air particles that pollute the atmosphere are the most prevalent and most toxic.</p> February 19, 2013 - 10:00am IET WebDev /news/scientists-trace-particulate-air-pollution-its-source