黑龙江省秸秆露天焚烧污染物排放清单及时空分布

An emission inventory of open field straw burning was established on the method of emission factors over the Heilongjiang Province for the year of 2016 in this paper. The temporal and spatial distribution characteristics of emission pollutants were also comprehensive analyzed in this study. Our results showed that the total emissions of CO₂, CO, CH₄, NMVOCs, NH₃, BC, OC, SO₂, NO_x, PM₁₀ and PM_2.5 were 1.314×10⁷, 4.192×10⁵, 3.77×10⁴, 8.35×10⁴, 6.5×10³, 4.4×10³, 3.13×10⁴, 5.0×10³, 3.28×10⁴, 8.81×10⁴ and 1.014×10⁵t, respectively. Further uncertainty analysis for 95% confidence intervals revealed that the uncertainties ranged from a low value of ±86% for NO_x to a high value of ±187% for CO. The reliability analysis also demonstrated that the compiled emission inventory is reasonable. The spatial distribution of higher values for emission pollutants was located in the western and eastern regions of Heilongjiang Province. Temporally, two obviously emission peaks for emitted pollutants from straw burning were presented throughout the year. The decline of open field straw burning would effectively promote the reduction of regional total emission of atmospheric pollutants, and the mode of intensive farming and large-scale management over the reclamation area in Heilongjiang Province can effectively control the regional open field straw burning.