Similarities and diversities of PM2.5, PM10 and TSP profiles for fugitive dust in a coastal oilfield city, China
- 作者：Shaofei KongYaqin JiBing LuXueyan ZhaoZhipeng Bai
- 会议时间：2013-05-16
- 关键词：Source profile ; fugitive dust ; size-differentiated ; particle ; oilfield city
- 作者单位：Shaofei Kong(Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Ningliu Road 219, Nanjing, China)Yaqin Ji,Bing Lu,Xueyan Zhao(College of Environmental Science and Engineering, Nankai University, Weijin Road 94#, Tianjin,China)Zhipeng Bai(College of Environmental Science and Engineering, Nankai University, Weijin Road 94#, Tianjin,China;Chinese Research Academy of Environmental Sciences, Beijing, 100012, China)
- 母体文献：第十一届全国气溶胶会议暨第十届海峡两岸气溶胶技术研讨会论文集
- 会议名称：第十一届全国气溶胶会议暨第十届海峡两岸气溶胶技术研讨会
- 会议地点：武汉
- 主办单位：中国颗粒学会
- 语种：chi
摘要
PM2.5,PM10 and TSP source profiles for road dust,soil dust and re-suspended dust were established by adopting a re-suspension chamber in a coastal oilfield city-Dongying in 11/2009-4/2010.Thirty-nine elements,nine ions,organic and elemental carbon were analyzed by multiple methods.Results indicated that Ca,Si,OC,Ca2+,Al,Fe and SO4 2- were the most abundant species for all the three types of dust within the three fractions.OC/TC ratios were highest for dusts in Dongying when compared with literatures which may be related to the large amounts of oil exploited and consumed.Na,Mg and Na+ in soil and road dust from Dongying also exhibited higher mass percentages than others indicating the influence of sea salt as the city was more adjacent to coastal line.Enrichment factors analysis showed that Cd,Ca,Cu,Zn,Ba,Ni,Pb,Cr,Mg and As were enriched and these elements were tended to concentrate in finer fraction.Similarities of the profiles for different size fractions and different types of dust were compared by coefficient of divergence (CD).The profiles for different types of dust were different to each other with the CD values mostly higher than 0.30; while the profiles for different size fractions of each dust were similar to each other with the CD values mostly lower or near to 0.30.