Exposure scenarios and guidance values for urban soil pollutants
Exposure scenarios and guidance values for urban soil pollutants
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DOI：
10.1006/rtph.1999.1345
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发表时间：
1999-12-01
影响因子：
3.4
通讯作者：
Samsoe-Petersen, L
中科院分区：
文献类型：
--
作者：
Boyd, HB;Pedersen, F;Samsoe-Petersen, L
一般来说，城市土壤污染风险评估是通过将污染物水平与土壤质量标准进行比较来进行的。然而，大城市地区的污染物浓度远远超过现有土壤质量标准，因此被认为对人类存在潜在风险。然而，这是一种相当严格的方法，并且出于风险管理的目的，希望有不止一个级别的土壤质量标准。因此，针对五种不同的使用场景开发了通用风险评估模型：儿童保育中心、厨房花园、观赏花园、公园和运动场。在每种场景中，分别描述了儿童和成人三种不同类型的预期行为，从而导致不同程度的污染物暴露。出于风险管理的目的，可以为每个使用场景得出各种指导值。低于较低的指导值，可以根据定义的用途免费使用该区域，而不会给公众带来不可接受的风险。高于上限值时，需要停止曝光。在这两者之间，使用可能受到不同类型的建议的监管。该模型仍处于初步阶段，但已用于推导五种常见土壤污染物的指导值，其中列出了苯并[a]芘和铅的结果。 (C) 1999 年学术出版社。
In general, risk assessments of urban soil pollution are prepared by comparing the levels of pollutants with soil quality criteria. However, large urban areas are contaminated with concentrations of pollutants far exceeding the existing soil quality criteria and would consequently be considered to be of potential risk to humans. This is, however, a rather rigid approach, and for risk management purposes it would be desirable to have more than just one level of soil quality criteria. Therefore, a generic risk assessment model was developed for five different use scenarios: child-care centers, kitchen gardens, ornamental gardens, parks, and sports grounds, In each of the scenarios, three different types of expected behavior are described for children and adults, respectively, resulting in different levels of exposure to the pollutants. For risk management purposes, various guidance values can then be derived for each use scenario, Below a lower guidance value, a free use of the area according to the defined use is possible without an unacceptable risk to the public. Above an upper value, a cutoff of the exposure is necessary. In between, the use may be regulated by different types of advice. The model is still preliminary but was, however, used for derivation of guidance values for five commonly found soil pollutants, of which the results for benzo[a]pyrene and lead are presented. (C) 1999 Academic Press.