Funny given the scorn 'round these parts that soccer moms get over their SUVs. "Can you see the mayors of Sausalito and Berkeley leading a protest march on the Chinese Consulate in San Francisco? " American Thinker Blog: Chinese pollution detectable in Marin County, Calif. The U.S. Environmental Protection Agency estimates that on certain days nearly 25 percent of the particulate matter in the skies above Los Angeles can be traced to China. Some experts predict China could one day account for a third of all California's air pollution.