Jung Raae, Ahn Young Sang
Division of Forest Resources, College of Agriculture and Life Sciences, Chonnam National University, 77, Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea.
Bull Environ Contam Toxicol. 2017 Aug;99(2):253-257. doi: 10.1007/s00128-017-2115-5. Epub 2017 May 23.
This study aimed to determine mercury concentrations in tree rings and surface soils at distances of 4, 26 and 40 km from a fertilizer plant located in Yeosu City, Korea. Mercury concentrations in all tree rings were low prior to the establishment of the plant in 1977 and became elevated thereafter. The highest average mercury concentration in the tree rings was 11.96 ng g at the Yeosu site located nearest to the plant, with the lowest average mercury concentration of 4.45 ng g at the Suncheon site furthest away from the plant. In addition, the highest mercury content in the surface soil was 108.51 ng cm at the Yeosu site, whereas the lowest mercury content in the surface soil was 31.47 ng cm at the Suncheon site. The mercury levels decreased gradually with increasing distance from the plant.
本研究旨在测定韩国丽水市一家化肥厂周边4公里、26公里和40公里处的树木年轮和表层土壤中的汞浓度。1977年该厂建成之前，所有树木年轮中的汞浓度都很低，此后浓度升高。距离该厂最近的丽水市树木年轮中汞的平均浓度最高，为11.96纳克/克，距离该厂最远的顺天市树木年轮中汞的平均浓度最低，为4.45纳克/克。此外，丽水市表层土壤中的汞含量最高，为108.51纳克/立方厘米，而顺天市表层土壤中的汞含量最低，为31.47纳克/立方厘米。汞含量随与工厂距离的增加而逐渐降低。
