Departamento de Química Agrícola, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
Environ Pollut. 2011 Oct;159(10):3078-85. doi: 10.1016/j.envpol.2011.04.004. Epub 2011 May 12.
Monitoring soil pollution is a key aspect in sustainable management of contaminated land but there is often debate over what should be monitored to assess ecological risk. Soil pore water, containing the most labile pollutant fraction in soils, can be easily collected in situ offering a routine way to monitor this risk. We present a compilation of data on concentration of trace elements (As, Cd, Cu, Pb, and Zn) in soil pore water collected in field conditions from a range of polluted and non-polluted soils in Spain and the UK during single and repeated monitoring, and propose a simple eco-toxicity test using this media. Sufficient pore water could be extracted for analysis both under semi-arid and temperate conditions, and eco-toxicity comparisons could be effectively made between polluted and non-polluted soils. We propose that in-situ pore water extraction could enhance the realism of risk assessment at some contaminated sites.
监测土壤污染是受污染土地可持续管理的关键方面，但对于应该监测哪些内容以评估生态风险，往往存在争议。土壤孔隙水中含有土壤中最不稳定的污染物部分，因此可以很容易地在现场采集，为监测这种风险提供了一种常规方法。我们提供了一组数据，这些数据来自西班牙和英国的一系列受污染和未受污染土壤，在现场条件下，使用该方法在单次和重复监测中采集了土壤孔隙水中痕量元素（砷、镉、铜、铅和锌）的浓度，并提出了一种使用该介质的简单生态毒性测试。在半干旱和温带条件下，都可以提取足够的孔隙水进行分析，并且可以有效地比较污染和未污染土壤之间的生态毒性。我们建议，在一些污染场地，原位孔隙水提取可以增强风险评估的现实性。
