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为探讨矿业活动对“有色金属之乡”南丹矿区周边常住居民健康的影响,采集矿业活动影响区车河镇、大厂镇、长老乡及对照区六寨镇中典型村庄居民发样200个,用原子荧光形态分析仪(AFS-9700)、石墨炉原子吸收分光光谱仪(AA 700)和电感耦合等离子发射光谱仪(Optima 7000)测试其重金属含量.结果表明,受影响区人群发样中As、Sb、Cd和Pb的平均含量分别为1.260、2.161、2.466和20.92μg·g-1,分别是对照区的4.0、20、2.1和1.9倍,且车河、大厂人群发样中Sb含量超出推荐正常范围;受影响区人群发样中Zn含量与居民年龄呈负相关(P<0.05,n=151),Cd和Pb含量与居民年龄呈弱负相关(P<0.1,n=151);通过独立样本t检验,受影响区男性居民发样中Cd含量显著高于女性(P<0.05),而女性居民发样中Cu和Zn含量显著高于男性(P<0.05).调查区域人群发样中As与Sb、Cd与Pb、As与Cd呈显著相关性(P<0.01).可见,南丹矿业活动对周边常住人群人发重金属积累效应明显.
In order to explore the impact of mining activities on the health of permanent residents around Nandan mining area in the area of “non-ferrous metal township” and Nandan mining area, samples of the typical village residents in Chekiang town, Dachang town, 200 samples were tested for their heavy metal contents with Atomic Fluorescence Morphology Analyzer (AFS-9700), Graphite Furnace Atomic Absorption Spectrometer (AA 700) and Inductively Coupled Plasma Atomic Emission Spectrometer (Optima 7000) .The results showed that The average contents of As, Sb, Cd and Pb were 1.260, 2.21, 2.466 and 20.92μg · g-1, respectively, which were 4.0, 20, 2.1 and 1.9 times of that of the control area respectively. (P <0.05, n = 151). The contents of Cd and Pb were negatively correlated with the residents’ ages (P <0.1, n = 151 ). The independent sample t test showed that the content of Cd in male samples of affected area was significantly higher than that of female samples (P <0.05), while the contents of Cu and Zn in female samples were significantly higher than that of male samples (P <0.05) As and Sb, Cd and Pb, As and Cd were significantly correlated (P <0.01) .Therefore, Nandan mining activity Crowd of people surrounding the resident hair heavy metal accumulation effect is obvious.