Abstract：Speciation characteristics and content of chromium (Cr) in different media around a chemical factory were studied to understand Cr pollution status in soils and its bio-availability. The media included soil, dust fall near the surface, bottom sludge, waste residue, and water. The sheet abnormal chromium areas centered at the chemical factory were found. The Cr content of waste residue and some bottom sludge reached one hundred or thousands times the soil background value. The Cr concentrations of topsoil and atmospheric dust samples were similar when the distance was taken into account, suggesting that the dust fall of the chemical factory is the main source of large-area pollution of Cr anomaly. Chromium in media exists mainly in residual speciation, but the average proportion of bio-available Cr in waste residue and potential bio-available Cr in some bottom sludge is 9.52% and 51.08%, respectively. Chromium has a significant negative effect on the health of organisms in the study area due to its high concentration and biological activity. Thus, it is essential to take measures to protect the ecological environment and plan the reasonable land use.
贾中民, 杨乐超, 周皎, 冯汉茹, 严明书, 李武斌, 龚媛媛, 张茂忠. 某化工厂周边不同介质中铬含量及形态特征[J]. 物探与化探, 2014, 38(2): 339-344.
JIA Zhong-min, YANG Le-chao, ZHOU Jiao, FENG Han-ru, YAN Ming-shu, LI Wu-bin, GONG Yuan-yuan, ZHANG Mao-zhong. SPECIATION CHARACTERISTICS AND CONTENT OF CHROMIUM IN DIFFERENT MEDIA AROUND A CHEMICAL FACTORY. Geophysical and Geochemical Exploration, 2014, 38(2): 339-344.
[1] Zhou Q X.Soil-quality guidelines related to combined pollution of chromium and phenol in agricultural environments[J].Human and Ecological Risk Assessment,1996,2:591-607. [2] Quan X J,Tan H Q,Zhao Y C.Detoxification of chromium slag by chromate resistant bacteria[J].Journal of Hazardous Materials,2006,137:836-841. [3] 罗建峰,曲东.青海海北化工厂铬渣堆积场土壤铬污染状况研究[J].西北农业学报,2006,15(6):244-247. [4] 刘玉强,李丽,王琪,等.典型铬渣污染场地的污染状况与综合整治对策[J].环境科学研究,2009,22(2):248-253. [5] 古昌红,单振秀,王瑞琪,等.铬渣对土壤污染的研究[J].矿业安全与环保,2005,32(6):248-253. [6] 张辉,马东升.南京某合金厂土壤铬污染研究[J].中国环境科学,1997,17(1):80-82. [7] 任爱玲,郭斌,刘三学,等.含铬污液在土壤中迁移规律的研究[J].城市环境与城市生态,2000,13(2):54-56. [8] 张建荣,李娟,许伟.原位生物稳定固化技术在铬污染场地治理中的应用研究[J].环境科学,2013(9):3684-3689 [9] 魏树和,周启星.重金属污染土壤植物修复基本原理及强化措施探讨[J].生态学杂志,2004,23(1):65-72. [10] 张茂忠,雷家立,龚媛媛,等.重庆市多目标区域地球化学调查报告[R].重庆市地质矿产勘查开发局川东南地质大队,2008. [11] 周皎,张茂忠,雷家立,等.重庆都市经济圈生态地球化学评价报告[R].重庆市地质矿产勘查开发局川东南地质大队,2010. [12] Cancès B,Ponthieu M,Castrec-Rouelle M,et al.Metal ions speciation in a soil and its solution:experimental data and model results[J].Geoderma,2003,113(3-4):341-355. [13] 王学锋,杨艳琴.土壤—植物系统重金属形态分析和生物有效性研究进展[J].化工环报,2004,24(1):24- 27. [14] 严莎,凌其聪,严森,等.城市工业区周边土壤水稻系统中重金属的迁移累积特征[J].环境化学,2008,27(2):226-230. [15] 晋王强,南忠仁,刘晓文,等.金昌市郊农田土壤Cu,Zn,Ni形态分布特征与生物有效性评价[J].环境化学,2010,29(2):220-225. [16] 荣伟英,周启星.铬渣堆放场地土壤的污染过程,影响因素及植物修复[J].生态学杂志,2010,29(3):598-604. [17] 杨志辉,王兵,黄顺红,等.铬渣堆场污染土壤中重金属铬的存在形态[J].中国有色金属学报,2008,18(1):372-376.
