Excess Heavy Metal in Beijing PM 2.5
china.org.cn / chinagate.cn by Jiao Meng, April 25, 2013 Adjust font size:
Why does arsenic in the air exceed standard levels? Shang Qi, vice director of the Institute of Environmental Health and Related Product Safety, China CDC, holds that this result implies the rise of other indicators. "It means that the overall air quality is worsening [because] it proves the increasing emission of pollutants related to arsenic with other poisonous compositions," he explained.
PM 2.5 carry many heavy metals within, including arsenic, lead and cadmium, etc. Heavy metals possess the bioaccumulation characteristic for organisms. Once they enter the bodies of animals, they become hard to be discharged. Once accumulated to a certain amount in the body, they may cause diseases, according to the report.
