Of the 1,306 children living in the Kangqiao area of Pudong district that had their blood tested in late 2011, 49 children, mainly between the ages of one and three, were found to have elevated blood lead levels. The children became sick when they were exposed to airborne lead, a very toxic chemical if ingested.
Shanghai Johnson Controls International Battery Co., Ltd. discharged excess airborne lead as it expanded production without governmental permits, identifying the company as the major source of lead contamination in the area. All the businesses associated with this incident have shut down for the current time being. In the meantime the municipal government is working to formulate pollution emission standards for battery plants to prevent similar incidents from happening in the future. However, effects and planning of these emissions will not be immediate and might take a long time to come into effect.
http://www.china.org.cn/china/2012-02/26/content_24732360.htm
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