以巴丹吉林沙漠为主体的中国北部沙漠是我国北方地区两大粉尘源之一。
Chinese northern desert (hereafter CND), with Badain Jaran desert as its main body, is one of the two most important dust sources in northern part of China.
在中国的主要沙漠和戈壁等粉尘源区采集了地表沙或土壤（统称为表土）样品，分析了样品的碳酸盐含量和碳酸盐的碳氧同位素组成。
Surface soil samples were collected in the deserts and Gobi regions of China. The carbonate content and carbon and oxygen isotopic composition were analyzed.
其主要污染源为工业粉尘、烟尘，机动车排放的尾气，建筑施工及道路交通产生的尘污染。
Its main pollution sources were industrial dust, smoke dust, exhaust emission and construction and traffic dust.
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