Emission characteristics and inventory establishment of air pollutants of civil coal in Hebei province

Abstract：Based on the geographic data and “Helping village”data of 2017 in the rural census in Hebei province, taking the whole area of Hebei province as the research object, the sampling survey method and the emission factor method were used to obtain the emission of air pollutants of civil coal in Hebei province.Combined with grid analysis, the pollutant emission was spatial analyzed, and the emission inventory of air pollutants of civil coal in Hebei province in 2017 was established.The results showed that: (1) in 2017, the total amount of civil coal in Hebei province was 2.645 9×10⁵t, including 7.468×10⁶t briquette and 1.899 1×10⁷t bulk coal.Baoding city, Tangshan city and Handan city ranked the top three in coal consumption, which were 3.856×10⁶t, 3.718×10⁶t and 3.313×10⁶t respectively; (2) in 2017, the emission of air pollutants of civil coal in Hebei province was different, SO₂was 1.24×10⁵t, NO_xwas 3.6×10⁴t, VOC_Swas 8.4×10⁴t, CO was 3.204×10⁶t, PM₁₀was 2.65×10⁵t and PM_2.5was 2.11×10⁵t, respectively; (3) CO accounted for about 80%, which was the highest of all the air pollutants, it followed by PM₁₀and PM_2.5,which accounted for about 12%, and NO_xaccounted for the smallest proportion; (4) from the spatial point of view, the main distribution range of civil coal in Hebei province was basically consistent with the villages distribution in Hebei province.The most concentrated area of air pollutant emission was the piedmont plain in eastern, central and southern Hebei Province, but the pollutions in Taihang Mountains in the west, the Yanshan Mountains in the north and the coastal areas were relatively small.

Keyword：Hebei province;geographic data;civil coal;air pollutants;emission inventory;spatial characteristic;