摘要
为了揭示桂林市大气中开放源组分特征,本研究在桂林采集了土壤扬尘、道路扬尘、建筑扬尘、堆场扬尘样品,分析了多种无机元素和水溶性离子含量,构建了桂林市开放源源谱。结果表明:桂林市土壤扬尘、道路扬尘、建筑扬尘、堆场扬尘中主量成分主要包含Ca、Fe、Al,主要为地壳元素和建筑标志元素。所有开放扬尘源元素中Ca,道路扬尘中Cu、Zn,堆场扬尘Pb、Zn富集程度极强,这些元素受人为污染影响,主要来自建筑施工、机动车、燃煤等。桂林市开放扬尘源之间分歧系数大于0.2,各开放扬尘源之间化学组成相似度不高;建筑扬尘与道路扬尘、土壤扬尘之间的分歧系数相对较小(分别为0.37、0.39),相互影响较大。桂林市各开放扬尘源与上海市扬尘源之间的分歧系数高(分别为0.46、0.50、0.51),化学组分差异大,可能与两个城市主要产业、人为污染源的差异相关。
To investigate the composition characteristics of open - sources in Guilin city, soil dust, road dust, building dust and yard dust were collected, inorganic elements and water - soluble ions were analyzed and the open - source profiles of Guilin were established. The results showed that the main chemical components of 4 open - sources were Ca, Fe, AI, which were the crustal elements or the tracer element of building dust. Ca in whole open - sources, Cu and Zn in road dust and Pb and Zn in yard dust were highly enriched, mainly influenced by anthropogenic pollution from construction, vehicle emissions and coal - fire emissions. The CDs of whole open - sources exceeded 0.2, meaning the low similarity between these open -source. While CDs between build dust, road dust and soil dust （0. 37, 0.39, relatively） were relatively smaller, meaning they interact each other evidently. The CDs of whole open - sources between Guilin and Shanghai were high （0.46, 0. 50 and 0.51 respectively）, the chemical components differences were great, resulting from the difference of the main industry and anthropogenic pollution of the two cities.
作者
宋韶华
陈筱佳
文建辉
程金平
SONG Shaohua CHEN Xiaojia WEN Jianhui CHENG Jinping(Guilin university of technology Guilin, Guangxi 541004)
出处
《工业安全与环保》
北大核心
2017年第10期81-83,92,共4页
Industrial Safety and Environmental Protection
基金
国家自然科学基金(21577090)
关键词
扬尘
组分特征
源谱
dust composition characteristics source profiles
