The Chinese Academy of Sciences said on Monday that industrial pollution is the biggest source of the PM 2.5 problems which cause Beijing’s smog, Xinhua news agency reported. Secondary inorganic aerosols — sulfates and nitrates — are responsible for 26 percent of Beijing’s PM 2.5, followed by industrial production and coal burning at 25 percent and 18 percent respectively, the thin-tank was quoted as saying in a report. Soil dust accounted for 15 percent. Beijing’s heavily industrialized neighboring provinces add to pollution in the capital. The report suggests that energy structure improvement and regional cooperation are needed to combat air pollution.
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