Asthma study finds seasonal surprises
http://www.fresnobee.com/local/story/1530125.html
"A new study confirms that lung problems get worse for Fresno asthmatics in winter when soot pollution increases. But, strangely, the same is not true during the worst summertime smog."
http://www.fresnobee.com/local/story/1530125.html
"A new study confirms that lung problems get worse for Fresno asthmatics in winter when soot pollution increases. But, strangely, the same is not true during the worst summertime smog."
