China 'exporting' ozone pollution to US: study

China 'exporting' ozone pollution to US: study
Paris (AFP) Aug 10, 2015 - Progress slashing unhealthy ozone in the western United States has been largely undone by pollution wafting across the Pacific from China, according to a study published Monday. Scientists have long suspected this might explain why ozone levels along the US west coast remained constant despite a significant local reduction in ozone-forming chemicals. The study, published in Nature Geosci ... morehttp://www.spacedaily.com/reports/China_exporting_ozone_pollution_to_US_study_999.html