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China continues to build its track record as a leading global polluter.
Using air-monitoring equipment in Japan and Korea, scientists detected steady emissions of chlorofluorocarbon from mainland China.
Chlorofluorocarbon is an ozone-damaging chemical and was globally banned beginning in 2010 when China and the world agreed to phase out its use. Emissions of the banned substance, which is often associated with the use of home insulation, have continued to increase each year in China.