Urban soils in a historically industrial city: patterns of trace metals in Pittsburgh, Pennsylvania
Urban soils in a historically industrial city: patterns of trace metals in Pittsburgh, Pennsylvania
复制标题
历史工业城市的城市土壤：宾夕法尼亚州匹兹堡的微量金属模式
DOI：
10.1088/2515-7620/ac7cc2
复制
发表时间：
2022
影响因子：
2.9
通讯作者：
Burgess, Jonathan
中科院分区：
文献类型：
--
作者：
Maxim, Alexandra;Bain, Daniel J.;Burgess, Jonathan
工业城市土壤中遗留重金属的分布还没有很好的记录。因此，城市土壤中微量金属的“背景”（即非道路/非滴灌线）浓度等基本细节是不确定的。虽然人们一直非常重视绘制道路和住宅附近的铅污染地图，但这些研究通常没有放在城市背景下。在这项研究中，“背景”分布的城市相关的微量金属：砷，镉，铜，铅，锌的基础上收集整个匹兹堡的土壤样品绘制。不同的空间格局被揭示：污染升高，在研究区的东部，主导风模式和历史上的焦化活动在低洼地区（paleochannels），受大气温度反演，重点空气污染的地区。混合分析揭示了工业活动对土壤金属污染贡献的空间结构。特别是，镉相对于锌富集的区域（即Zn：Cd< 317）位于历史焦化作业附近，铅相对于锌富集的区域（Pb：Zn> 1）位于历史二次铅冶炼厂区域。这些结果表明，背景土壤中的痕量金属浓度的全面核算具有重要意义的暴露风险评估居住在历史上的工业区的人口。城市系统背景条件的相对稀疏采样可以指示遗留污染的模式，并将这种污染归因于历史来源。
The distribution of legacy heavy metals in industrial city soils is not well documented. Therefore, fundamental details such as the'background'(ie, non-road/non-dripline) concentration of trace metals in urban soils are uncertain. While there has been a strong focus on mapping lead contamination near roads and residences, these studies are generally not placed in the context of the urban background. In this study,'background'distributions of urban relevant trace metals: arsenic, cadmium, copper, lead, and zinc were mapped based on soil samples collected throughout Pittsburgh. Distinct spatial patterns were revealed: contamination is elevated in the eastern portion of the study area, driven by dominant wind patterns and historical coking activities in low-lying areas (paleochannels), areas subject to atmospheric temperature inversions that focus air contamination. The mixing analysis revealed spatial structures in contributions of industrial activities to metal soil contamination. In particular, regions enriched in cadmium relative to zinc (ie, Zn: Cd< 317) were located near historical coking operations, and areas enriched in lead relative to zinc (Pb: Zn> 1) were located in areas with historical secondary lead smelters. These results suggest a comprehensive accounting of the trace metals concentrations in background soils has important implications for the assessment of exposure risk in populations residing in historically industrial areas. Relatively sparse sampling of background conditions in urban systems can indicate patterns of legacy contamination and attribute this contamination to historical sources.
DOI：
10.1080/00022470.1979.10470892
发表时间：
1979-01-01
期刊：
JOURNAL OF THE AIR POLLUTION CONTROL ASSOCIATION
影响因子：
--
作者：
DAVIDSON, CI
通讯作者：
DAVIDSON, CI
影响因子：
11.4
作者：
Rossi, Robert J.;Bain, Daniel J.;Abbott, Mark B.
通讯作者：
Abbott, Mark B.
影响因子：
0.7
作者：
J. Tarr
通讯作者：
J. Tarr