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Monitoring of DDT in Agricultural Soils under Organic Farming in Poland and the Risk of Crop Contamination
Environmental Management ( IF 3.5 ) Pub Date : 2020-08-19 , DOI: 10.1007/s00267-020-01347-9
Eligio Malusá 1 , Małgorzata Tartanus 1 , Witold Danelski 1 , Artur Miszczak 1 , Ewelina Szustakowska 1 , Joanna Kicińska 1 , Ewa M Furmanczyk 1
Affiliation  

The analysis of 142 agricultural soil samples collected in organic farms across Poland with the intent to evaluate the level of DDT contamination resulted in more than 80% of the soils containing DDT. The ΣDDT (sum of all metabolites and isomers) concentration ranged between 0.005 and 0.383 mg/kg ΣDDT, with an average value of 0.064 mg/kg ΣDDT. However, the majority of plant samples collected from the crops growing on the sampled soils did not contain detectable DDT residues. The high DDT pollution levels detected in samples from four voivodeships (regions) among those monitored have been hypothesised to be linked to horticultural productions occurring to the sampled fields and typical of those regions, particularly in big-sized farms, during the period of DDT application, as well as the number of pesticides landfills present in these voivodeships. The elaboration of the o,p′-DDT/p,p′-DDT and DDT/(DDE + DDD) ratios to appraise the source or the period of contamination suggested that the contamination originated from past use of DDT rather than from impurities of more recent applications of other formulated substances. Such outcome thus suggests that the risk of contamination of organic products is likely derived from general environmental pollution levels rather than from the use of unauthorised substances in organic farming productions. Data from a trial with artificial contamination of soils indicated that using the DDT/(DDE + DDD) ratio in the presence of a low level of contamination could be less reliable than in highly contaminated soils.

中文翻译:

监测波兰有机农业下农业土壤中的 DDT 和作物污染风险

为了评估 DDT 污染水平,对在波兰有机农场收集的 142 个农业土壤样本进行了分析,结果发现 80% 以上的土壤含有 DDT。ΣDDT(所有代谢物和异构体的总和)浓度介于 0.005 和 0.383 毫克/千克 ΣDDT 之间,平均值为 0.064 毫克/千克 ΣDDT。然而,从在取样土壤上生长的农作物收集的大部分植物样本均不含可检测到的滴滴涕残留。据推测,在被监测的四个省(区)的样本中检测到的 DDT 高污染水平与在 DDT 应用期间发生在采样田和这些地区的典型园艺生产有关,特别是在大型农场。 ,以及这些省存在的杀虫剂垃圾填埋场的数量。o,p'-DDT/p,p'-DDT 和 DDT/(DDE + DDD) 比率用于评估污染源或污染时期的详细说明表明污染源于过去使用滴滴涕而不是来自其他配方物质的最新应用。因此,这样的结果表明有机产品污染的风险可能来自一般环境污染水平,而不是来自有机农业生产中使用未经授权的物质。一项人工污染土壤试验的数据表明,在污染程度较低的情况下使用 DDT/(DDE + DDD)比率可能不如在高度污染的土壤中可靠。p′-DDT 和 DDT/(DDE + DDD) 比率用于评估污染源或污染时期表明污染源于过去使用 DDT,而不是来自最近应用的其他配制物质的杂质。因此,这样的结果表明有机产品污染的风险可能来自一般环境污染水平,而不是来自有机农业生产中使用未经授权的物质。一项人工污染土壤试验的数据表明,在污染程度较低的情况下使用 DDT/(DDE + DDD)比率可能不如在高度污染的土壤中可靠。p′-DDT 和 DDT/(DDE + DDD) 比率用于评估污染源或污染时期表明污染源于过去使用 DDT,而不是来自最近应用的其他配制物质的杂质。因此,这样的结果表明有机产品污染的风险可能来自一般环境污染水平,而不是来自有机农业生产中使用未经授权的物质。一项人工污染土壤试验的数据表明,在污染程度较低的情况下使用 DDT/(DDE + DDD)比率可能不如在高度污染的土壤中可靠。因此,这样的结果表明有机产品污染的风险可能来自一般环境污染水平,而不是来自有机农业生产中使用未经授权的物质。一项人工污染土壤试验的数据表明,在污染程度较低的情况下使用 DDT/(DDE + DDD)比率可能不如在高度污染的土壤中可靠。因此,这样的结果表明有机产品污染的风险可能来自一般环境污染水平,而不是来自有机农业生产中使用未经授权的物质。一项人工污染土壤试验的数据表明,在污染程度较低的情况下使用 DDT/(DDE + DDD)比率可能不如在高度污染的土壤中可靠。
更新日期:2020-08-19
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