Source Apportionment of Atmospheric Dust Fallout in an Urban-Industrial Environment in India
Source Apportionment of Atmospheric Dust Fallout in an Urban-Industrial Environment in India
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DOI：
10.4209/aaqr.2008.12.0065
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发表时间：
2009-09-01
影响因子：
4
通讯作者：
Pervez, Shamsh
中科院分区：
文献类型：
--
作者：
Balakrishna, Gurugubelli;Pervez, Shamsh
据报道，大气降尘的成分和数量是大城市地区的污染指标。城市地区大气粉尘来源的多样性和复杂性（例如，由各种工业过程、汽车、建筑活动等组成的工业综合体）提出了对这些污染源进行源解析的必要性，指出了它们对特定环境受体的贡献。这里介绍的研究是集中在调查的源贡献估计粉尘沉降在城市工业区，印度赖布尔。根据人类活动的土地利用规划和与大气粉尘输送和扩散模式有关的因素，确定了6个采样点。从每个地点收集了12个粉尘沉降物样品（每月一个），并对选定的化学成分进行化学分析，这些化学成分被称为选定的主要粉尘排放源（炼钢平均值、道路交通尘埃、建筑活动、城市垃圾燃烧和土壤）的标志物。化学简介沿着美国环保局的SPECIATE被用于编制源简介。使用化学质量平衡法（CMB 8）进行了源解析。良好的拟合参数和相对源的贡献进行了分析和记录。选定的指示物种的源贡献估计发生了变化，并证明在研究区域的各个部分的粉尘排放的本地区域和线源的显着贡献。与其他来源相比，燃煤钢铁制造业的贡献占主导地位。
The components and quantities of atmospheric dusts fallout has been reported to be the pollution indicator of large urban areas. The multiplicity and complexity of sources of atmospheric dusts in urban regions (e.g. industrial complexes composed of a variety of industrial processes, automobiles, construction activities etc.) has put forward the need of source apportionment of these sources indicating their contribution to specific environmental receptor. The study presented here is focused on investigation of source contribution estimates of dusts fallout in an urban-industrial area, Raipur, India. Six sampling sites have been identified on the basis of land use for development plan of anthropogenic activities and factors related to the transportation and dispersion pattern of atmospheric dusts. 12 samples of dusts fallout has been collected from each site (one in each month) and subjected to chemical analysis of selected chemical constituents known as markers of selected major dust emitting sources(Steel making average, Road traffic-borne dusts, construction activities, municipal waste burning, and soils). Chemical profiles along with SPECIATE of USEPA has been used for the preparation of source profiles. Source apportionment has been done using Chemical Mass Balance (CMB 8). Good fit parameters and relative source contribution has been analyzed and documented. Variations in source contribution estimates of selected indicator species has been occurred and justify the significant contribution of local area and line sources of dusts emission in various parts of the study region. Coal-fired steel making industries have shown dominating contribution compared to other sources.