2020-2021年新疆生产建设兵团第八师人为源大气氨排放清单研究  

Inventory of anthropogenic ammonia emissions in the Eighth Division of the Xinjiang Production and Construction Corps from 2020 to 2021

作　　者：何凯杰 何友江[1] 梅承志 杨欣[1] 赵妤希[1] 李富强 彭玉杰 刘雨鑫 李斌[2] HE Kaijie;HE Youjiang;MEI Chengzhi;YANG Xin;ZHAO Yuxi;LI Fuqiang;PENG Yujie;LIU Yuxin;LI Bin(Chinese Research Academy of Environmental Sciences,Beijing 100012;North University of China,Taiyuan 030051;Shihezi Ecological and Environmental Monitoring Station,Shihezi 832099)

机构地区：[1]中国环境科学研究院,北京100012 [2]中北大学,太原030051 [3]石河子市生态环境局,石河子832099

出　　处：《环境科学学报》2024年第9期121-128,共8页Acta Scientiae Circumstantiae

摘　　要：为探究新疆生产建设兵团第八师人为源大气氨的排放结构及排放特征变化,利用排放源活动水平数据,结合排放因子法建立了2020-2021年第八师人为源大气氨排放清单.2020-2021年第八师大气氨排放总量分别为17544.7 t和19195.9 t,其中石河子市氨排放量分别为9442.2 t和9858.1 t,占第八师氨排放总量的53.8%和51.4%.石河子市氨排放强度超20 t·km^(-2),显著高于国内其他城市.2020—2021年农业源为第八师主要氨排放源,氨排放量高达13868.4 t和15276.7 t,分担率分别为79.0%和79.6%,其中氮肥施用源氨排放量最大,分担率分别为53.7%和49.0%,其次为畜禽养殖源,分担率分别为22.8%和28.2%.非农业源中烟气脱硝占比最大,2020和2021年工业烟气脱硝过程中的氨逃逸量分别为3429.1 t和3620.6 t,分担率分别为19.5%和18.9%,其中电力行业氨逃逸量最大,在氨逃逸总量中的占比超80%.第八师氨排放量呈夏高冬低的季节变化特征,农业源氨排放月变化幅度大于非农业源.春季至秋季农业源氨排放量最大,冬季大气氨主要来自工业烟气脱硝过程中的氨逃逸.冬季为减少大气二次颗粒物铵盐的生成,缓解大气细颗粒物污染,需加强对工业烟气脱硝中氨逃逸的治理.To investigate the emission structure and temporal variations of anthropogenic ammonia in the Eighth Division of the Xinjiang Production and Construction Corps,an inventory of ammonia emissions from anthropogenic sources for the years 2020 and 2021 was constructed by integrating the activity data of emission sources and employing the emission factor method.The total atmospheric ammonia emissions from the Eighth Division for the years 2020 and 2021 were quantified to be 17544.7 t and 19195.9 t respectively,with Shihezi City contributing emissions of 9442.2 t and 9858.1 t,accounting for 53.8%and 51.4%of the total emissions in the respective years.Shihezi City exhibits an ammonia emission intensity exceeding 20 t·km^(-2),significantly higher than that of other domestic cities.Agricultural sources constituted the primary contributors to ammonia emissions in the Eighth Division,with emissions of 13868.4 t and 15276.7 t,corresponding to 79.0%and 79.6%of the total emissions in 2020 and 2021,respectively.Within the agricultural sector,in 2020 and 2021,the application of nitrogen fertilizers was identified as the largest source of ammonia emissions,accounting for 53.7%and 49.0%of the total emissions,followed by livestock and poultry breeding,which contributed 22.8%and 28.2%,respectively.Among non-agricultural sources,the largest proportion of emissions was attributed to flue gas denitrification.In 2020 and 2021,the ammonia slip during the industrial flue gas denitrification process was quantified to be 3429.1 t and 3620.6 t,representing 19.5%and 18.9%of the annual totals,respectively.The power industry was identified as the largest contributor,accounting for over 80%,to total ammonia escape.The temporal distribution of ammonia emissions in the Eighth Division exhibited a seasonal pattern,characterized by higher emissions in summer and lower emissions in winter,with agricultural sources exhibiting greater month-to-month variation compared to non-agricultural sources.The maximum emissions from agricultural sources were obs

关 键 词：人为氨源 排放因子 氨排放清单 第八师 

分 类 号：X51[环境科学与工程—环境工程]