Department of Ecology, Technische Universität Berlin, Ernst Reuter Platz 1 (BH 9-1), D-10587 Berlin, Germany.
Department of Ecology, Technische Universität Berlin, Ernst Reuter Platz 1 (BH 9-1), D-10587 Berlin, Germany.
Ecotoxicol Environ Saf. 2014 Mar;101:233-9. doi: 10.1016/j.ecoenv.2013.11.023. Epub 2014 Jan 25.
Today's urban gardening focuses mainly on vegetable production and rarely includes fruit trees. Health effects of consuming urban crops are questioned due to high local pollution loads. Here, we determined cadmium and lead content in the edible parts of nuts, berries, pome, and stone fruits harvested from fruit trees and shrubs within inner city neighbourhoods of Berlin, Germany. We analysed how local settings at sampling sites shaped the trace metal content. We revealed significant differences in trace metal content depending on species, fruit type, local traffic, and parameters related to barriers between the sampling site and neighbouring roads. Higher overall traffic burden and proximity to roads increased whereas buildings or vegetation as barriers reduced trace metal content in the edible biomass. We demonstrate, that the consumption of non-vegetable fruits growing in inner city sites in Berlin does not pose a risk on human health as long as the fruits are thoroughly washed and it is provided that site pollutions and impacts are considered in garden concepts and guidelines.
今天的城市园艺主要集中在蔬菜生产上，很少包括果树。由于当地污染负荷高，人们对食用城市作物的健康影响提出了质疑。在这里，我们测定了从德国柏林市中心街区的果树和灌木上收获的坚果、浆果、梨果和核果的可食用部分中的镉和铅含量。我们分析了采样点的局部环境如何影响痕量金属含量。我们发现，痕量金属含量取决于物种、果实类型、当地交通以及与采样点和邻近道路之间障碍物相关的参数而存在显著差异。较高的整体交通负担和接近道路会增加，而建筑物或植被作为障碍物会减少可食用生物量中的痕量金属含量。我们证明，只要彻底清洗水果，并在园艺概念和准则中考虑场地污染和影响，那么在柏林市中心地区生长的非蔬菜类水果的食用不会对人类健康构成风险。
