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GSUE: urban geochemical mapping in Great Britain

机译:GSUE:英国的城市地球化学测绘

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摘要

The British Geological Survey is responsible for the national strategic geochemical survey of Great Britain. As part of this programme, the Geochemical Surveys of Urban Environments (GSUE) project was initiated in 1992 and to date, 21 cities have been mapped. Urban sampling is based upon the collection of top (0.05 to 0.20 m) and deeper (0.35 to 0.50 m) soil samples on a 500 m grid across the built environment (one sample per 0.25 km2). Samples are analysed for c. 46 total element concentrations by X-ray fluorescence spectrometry, pH and loss on ignition as an indicator of organic matter content. The data provide an overview of the urban geochemical signature and because they are collected as part of a national baseline programme, can be readily compared with soils in the rural hinterland to assess the extent of urban contamination. The data are of direct relevance to current UK land use planning, urban regeneration and contaminated land legislative regimes. An overview of the project and applications of the data to human health risk assessment, water quality protection and contaminant source identification are presented.
机译:英国地质调查局负责英国的国家 战略地球化学调查。作为此 计划的一部分,1992年启动了城市环境地球化学调查(GSUE) 项目,迄今为止,已经映射了21个城市。城市采样是基于在整个建筑环境中的500 m网格上收集顶部(0.05 到0.20 m)和更深(0.35到0.50 m)的土壤样本(一个每0.25 km 2 )。 分析样品的c。 X射线荧光光谱法测定了46种元素的总浓度,pH值和灼烧损失 作为有机物含量的指标。数据提供了 城市地球化学特征的概述,并且由于它们是国家基线计划的一部分,因此可以很容易地将 与土壤进行比较。在农村腹地评估城市污染的程度。这些数据与当前英国的土地使用规划,城市更新以及受污染的土地立法制度直接相关。 概述了该项目及其对人类健康风险评估,水质保护 和污染物源识别的数据应用。

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