赣州不同级公路沿线农田土壤重金属污染评价研究

来源期刊：有色金属科学与工程2011年第1期

论文作者：冯秀娟 肖敏志 阎思诺 陈沛云

文章页码：68 - 72

关键词：道路；农田土壤；污染指标；评价

Key words：highways; farmland soils; pollution index; evaluation

摘    要：研究区域为赣州市章贡区至赣县王母渡镇之间的三级道路体系一即323国道(简称G323)、234省道(简称S234)以及348县道(简称X348)所构成的线形区域，主要研究这三级道路两侧的土壤中重金属(Pb、Cd、Cu、Zn)的含量及污染评价，利用单因子污染指数法和内梅罗综合污染指数法相结合的方法对其重金属污染综合指数进行评价，结果表明：县道≤lOOm的范围、省道≤200m的范围以及国道≤1OOm的范围之内均受到重金属污染，三级道路两侧土壤重金属污染综合指数均值的大小顺序为：国道(3.401)>省道(2.795)>县道(2.682)；县道处西北侧(2.763)>东南侧(2.600)；省道处西侧(2.941)>东侧(2.648)；国道处西北侧(4.038)>东南侧(2.764)．

Abstract: By using single-factor pollution index method and Nemerow index method , the paper mainly investigates into the heavy metals (Pb, Cd, Cu, Zn) content and pollution evaluation on the farmland soils along the three-level highways between Zhanggong district Ganzhou city and Wangmudu town Ganxian county, namely national highway 323 (G323 for short),provincial highway 234 (S234 for short), and county highway 348 (X348 for short). The result indicates that the scope of X348≤l00m , S234≤200m and G323≤l00m are polluted by heavy metals. The orders of the heavy metals pollution composite indexes are: G323 (3.401) S234 (2.795) X348 (2.682); northeast side of X348(2.763》southeast side of X348(2.600); west side of S234 (2.941)east side of S234 (2.648); northeast side of G323 (4.038)southeast side of G323 (2.764).