研究论文
于晓岚,汤洁,周凌晞,薛虎圣,周秀骥.拉萨地区非甲烷碳氢化合物的排放特征和来源分析[J].环境科学学报,2001,21(2):203-207
拉萨地区非甲烷碳氢化合物的排放特征和来源分析
- Emission characteristics and sources of non-methane hydrocarbons at Lhasa Area
- 基金项目:国家自然科学基金(49775275);中国气象局大气化学开放实验室基金项目
- 摘要:报道了拉萨地区大气中非甲烷碳氢化合物的监测数据.在1998年6月和9月,对拉萨地区大气样品进行了采集和非甲烷碳氢化合物(NMHC)的分析测定,并讨论了拉萨地区大气非甲烷碳氢化合物的浓度水平和排放特征.共检测出69种烃类,其中以9个碳以上的芳烃类为主,约占45%-49%.总非甲烷碳氢化合物的平均浓度水平在60-166ppbC范围.结果表明,拉萨地区特有的生物体燃烧及植物排放是当地大气中非甲烷碳氢化合物的重要来源.
- Abstract:In June and September of 1998, the air samples were collected in Lhasa suburb and analyzed. The concentrations and emission characteristics of Non-Methane Hydrocarbons at Lhasa area are discussed. 69 types of hydrocarbons are identified. Among all hydrocarbons, the aromatic compounds with/more than 9 carbon atoms are the majority, which accounts for 45%-49% of total NMHCs. The concentration of total NMHC is in 60 ~166ppbC.The analysis suggests that the local biomass burning and biological emissions are the dominant sources in Lhasa area.
摘要点击次数: 1831 全文下载次数: 3076