Department of Horticulture, Division of Applied Life Science (BK21 Plus Program), Graduate School, Gyeongsang National University, Jinju, 52828, Republic of Korea.
Civilian Headquarter for Solution of Particulate Matter Pollution, Seoul, 06764, Republic of Korea.
Environ Sci Pollut Res Int. 2019 Sep;26(25):25762-25774. doi: 10.1007/s11356-019-05825-4. Epub 2019 Jul 2.
Among air pollutants, particulate matter (PM) has been identified as a major cause of environmental pollutants due to the advancement of industrial development and the generation of smaller particles. Particulate matter, in particular, is defined only by the size of particles and thus is not enough to study its composition yet. However, edible crops grown in contaminated atmospheres can be contaminated with heavy metals contained in particulate matter in the atmosphere, which can seriously damage food safety. In this study, we investigated the influence of the accumulation of particulate matter on leafy vegetables cultivated at areas with different levels of PM in atmosphere. Four districts of Gyeongsangnam-do were chosen to conduct this experiment: outdoor spaces of three respectively located in industrial, near-highway, and rural areas were considered, and research plant growth chambers at Gyeongsang National University were used as the control. After 3 weeks of cultivation in those conditions, the results showed that Pb in milligrams per kilogram of fresh weight (FW) was 0.383 in Chrysanthemum coronarium and 0.427 in Spinacia oleracea that were grown near the highway, which exceeded the 0.3 mg kg FW standard set by the Republic of Korea, EU, and CODEX. However, when those vegetables were sufficiently washed with tap water, it was confirmed that the heavy metal content fell into the safety standard range.
在空气污染物中，由于工业发展的进步和更小颗粒的产生，颗粒物（PM）已被确定为主要的环境污染物原因。颗粒物，特别是，仅由颗粒的大小定义，因此不足以研究其组成。然而，在受污染的大气中生长的食用作物可能会被大气中颗粒物所含的重金属污染，这可能会严重损害食品安全。在这项研究中，我们研究了颗粒物积累对在大气中 PM 水平不同地区种植的叶菜的影响。我们选择了庆尚南道的四个地区进行这项实验：分别位于工业区、高速公路附近和农村的三个户外空间被考虑在内，而在国立庆尚大学的研究植物生长室则被用作对照。在这些条件下培养 3 周后，结果表明，在高速公路附近种植的菊花（Chrysanthemum coronarium）和菠菜（Spinacia oleracea）中的 Pb 每公斤鲜重（FW）分别为 0.383 和 0.427，超过了韩国、欧盟和 CODEX 设定的 0.3mgkg FW 标准。然而，当用自来水充分清洗这些蔬菜时，确认重金属含量落入安全标准范围。
