首页  |  本刊简介  |  编委会  |  投稿须知  |  订阅指南  |  联系我们  |  微信  |  出版道德声明  |  Ei收录本刊数据
兰州市煨炕污染物排放清单及其对PM2.5浓度贡献
摘要点击 242  全文点击 84  投稿时间:2018-03-26  修订日期:2018-05-11
查看HTML全文 查看全文  查看/发表评论  下载PDF阅读器
中文关键词  煨炕  排放清单  WRF-Chem模式  PM2.5  贡献
英文关键词  smoldering Chinese kangs  emissions inventory  WRF-Chem  PM2.5  source contribution
作者单位E-mail
郭文凯 兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000 guowk17@lzu.edu.cn 
刘晓 兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000  
朱玉凡 兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000  
陈强 兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000 chenqqh@lzu.edu.cn 
杜永刚 山东师范大学地理与环境学院, 济南 250013  
中文摘要
      在考虑经济水平差异的基础上,通过对典型区域的调查确定煨炕活动水平,采用排放因子法建立了兰州市2016年煨炕大气污染物排放清单,煨炕排放的SO2、NOx、NH3、CO、VOCs、PM10、PM2.5、OC和EC的总量分别为340.8、201.8、106.0、36628.2、4997.2、6070.3、5645.1、1089.3和1233.1 t·a-1.对污染物排放总量进行时空分配,排放主要集中在11月至次年4月中旬;排放量与区域经济水平密切相关,且存在着明显的空间差异,排放量大的区域主要集中在榆中东南部、永登中部和七里河南部.利用WRF-Chem模式研究了采暖季煨炕对兰州市PM2.5浓度的平均贡献,引入煨炕污染物排放清单提高了模拟结果的准确性,兰苑宾馆(位于城区)和榆中站(位于农村)的PM2.5平均浓度在模拟期间分别升高了32 μg·m-3和34 μg·m-3,贡献率分别为37.6%和49.2%.可见,研究和制定科学的煨炕污染物防控对策对改善区域环境空气质量具有重要意义.
英文摘要
      Considering regional differences in economic development, the activity level of smoldering Chinese kangs was confirmed by surveys in typical areas in Lanzhou City. An emissions inventory of smoldering Chinese kangs in Lanzhou City in 2016 was established using the emissions factor approach. The emissions amounts of SO2, NOx, NH3, CO, volatile organic compounds (VOCs), PM10, PM2.5, organic carbon (OC) and elemental carbon (EC) were 340.8, 201.8, 106.0, 36628.2, 4997.2, 6070.3, 5645.1, 1089.3, and 1233.1 t·a-1, respectively. Emissions amounts were allocated by spatial and temporal characteristics. The emissions were concentrated from November to mid-April of the following year. Spatially, there were significant differences in emissions at different economic levels. The high value areas of emissions were mainly concentrated in the southern part of Yuzhong, central Yongdeng, and south of Qilihe. The weather research and forecasting with chemistry (WRF-Chem) model was used to determine the average contribution of smoldering Chinese kangs to PM2.5 concentration in Lanzhou City during the heating season. The simulation results were improved after applying the emissions inventory. The average PM2.5 concentration at Lanyuan Hotel (in the city) and Yuzhong Station (in the countryside) increased 32 μg·m-3 and 34 μg·m-3 in the simulation, respectively, and the corresponding rates of pollution contribution were 37.6% and 49.2%. Thus, researching and enacting scientific control measures for smoldering Chinese kang pollutants is significant to improving regional air quality.

您是第13689256位访客
主办单位:中国科学院生态环境研究中心 单位地址:北京市海淀区双清路18号
电话:010-62941102,62849343 传真:010-62849343 邮编:100085 E-mail: hjkx@rcees.ac.cn
本系统由北京勤云科技发展有限公司设计  京ICP备05002858号