In Korea, rapid industrialization has often caused severe soil and water pollution near industrial complexes. Particularly, heavy metal(loid) contamination of agricultural lands could induce serious long-term problems for crop safety and productivity, requiring continual safety assessment. This study investigated heavy metal(loid) contamination of agricultural lands near fifteen industrial complexes. At each of industrial sites in Gyeongsangbuk-do, topsoils and subsoils were collected at two different distances from each site (0–500 m and 500–1000 m). For comparison, at each site, non-polluted soils were also collected more than 1000 m away from each industrial complex. With the exception of one sample, heavy metal(loid) concentration of all soils were lower than the Korean guidelines for soil contamination. However, the difference between the heavy metal(loid) concentrations of Cu, Pb and Zn in topsoil and subsoil increased the closer the samples were the industrial complexes, which implied that these elements were being generated by industrial activities and were freshly loaded on to near surface soils. While the heavy metal(loid) concentration in the studied sites did not exceed the Korean guideline, the geoaccumulation index of each soil indicated that the degree of Cd, Cu, and Pb contamination was heavily or extremely serious in more than twenty of the examined soils. The elevation of specific metals associated with industrial activity in soils in close proximity to industrial sites is of some concern and should be taken into consideration for the future management of agricultural soils around such complexes as well as the industrial complex operation itself.

中文翻译：

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工业活动对农业土壤重金属（金属）污染的分布和程度的影响

在韩国，快速的工业化进程经常在工业园区附近造成严重的土壤和水污染。特别是，农田中的重金属（胶体）污染可能会给作物安全和生产力带来严重的长期问题，需要进行持续的安全评估。本研究调查了十五个工业园区附近农田的重金属（胶体）污染。在庆尚北道的每个工业现场，在距每个现场两个不同的距离（0-500 m和500-1000 m）处收集表土和地下土壤。为了进行比较，在每个地点，也距离每个工业园区超过1000 m的地方收集了无污染的土壤。除一个样品外，所有土壤中的重金属（胶体）浓度均低于韩国土壤污染指南。然而，样品越接近工业复合物，表土和底土中铜，铅和锌的重金属（类）浓度之间的差异就越大，这意味着这些元素是由工业活动产生的，并且是新鲜加载到近地表土壤中的。虽然研究地点的重金属（胶体）浓度未超过韩国的规定，但每种土壤的地质累积指数表明，在超过二十种被调查土壤中，Cd，Cu和Pb的污染程度非常严重或极为严重。 。