Institute for Plant Biology, TU Braunschweig, Braunschweig, Germany.
Institute for Plant Biology, TU Braunschweig, Braunschweig, Germany; Agriculture Genetic Engineering Research Institute (AGERI), Egypt.
Environ Pollut. 2018 Jul;238:972-976. doi: 10.1016/j.envpol.2018.01.113. Epub 2018 Feb 15.
This study aimed to elucidate the origin of the widespread nicotine contamination of plant-derived commodities, by conducting field experiments with various herbs and spice plants. By scattering tobacco and cigarette butts on the field and subsequent nicotine analyses of the acceptor plants, we verified that the alkaloid is leached out into the soil and is taken up by the crop plants. This path of contamination pertains even when there is only one cigarette butt per square meter. Even such minor pollution results - at least in the case of basil and peppermint - in considerable high nicotine contaminations, which exceed the maximum residue level by more than 20-fold. The data reported here clearly outline the large practical relevance of this soil-borne contamination path and imply that unthoughtful disposal of cigarette butts in the field by farm workers may be the reason for the widespread occurrence of nicotine contamination in plant-derived commodities. Therefore, such misbehavior needs to be prevented using education and sensitization, and by including this issue into the guidelines of good agricultural practice.
本研究旨在通过对各种草药和香料植物进行田间试验，阐明植物源性商品中尼古丁广泛污染的来源。通过在田间散布烟草和烟蒂，并对接受植物进行尼古丁分析，我们验证了生物碱被浸出到土壤中，并被作物植物吸收。即使每平方米只有一个烟蒂，也会存在这种污染途径。即使是这种轻微的污染——至少在罗勒和薄荷的情况下——也会导致相当高的尼古丁污染，超过最大残留限量 20 多倍。这里报告的数据清楚地说明了这种土壤传播污染途径的巨大实际意义，并暗示农民在田间随意丢弃烟蒂可能是植物源性商品中尼古丁广泛污染的原因。因此，需要通过教育和提高认识，以及将这一问题纳入良好农业规范准则来防止这种不当行为。
