Now, environmental pollution is a big problem, including air pollution, water pollution and soil pollution.
2013 air pollution in Beijing: PM2.5 a lot more than the standard. The annual average concentration of PM2.5 was 89.5 mg / m3, exceeding the standard of 156%. The annual pollution monitoring points of traffic PM2.5 and NO2 concentrations were higher than the city average of 14% and 41%, respectively.
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