Relationship of the Concentration of Lead in Wild Small Mammals and Environmental Lead from Kaohsiung and Penghu Areas

• Main Authors: Lee, JInq-Ti, 李鏡梯
• Other Authors: Tong-Neng Wu, Ying-Chin Ko
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/41706913997488752701

碩士 === 高雄醫學院 === 公共衛生學研究所 === 84 === Wild small mammals were live-trapped near Kaohsiung harbour and Penghuareas. The concentration of blood and bone lead were analysed by furnaceatomic absorption spectrophotometer, and the concentration of lead of thesurface soil around the site where the wild small mammals were trap-ped werealso determined. In this study, the blood lead of hybrid rats housing in theanimal room were used as reference base line value. The mean level of bloodlead of three species (R. novegicus, 19.36±4.93μg/dL, n=113; S. murinus,16.61±5.00μg/dL,n=18; R. rattus, 17.33±1.98 μg/dL,n=6) trap-ped fromKaohsiung area are significantly higher than the same species (14.45±5.23μg/dL,n=13; 7.54±1.20 μg/ dL,n=19; 13.75±3.33μg/dL,n=13; respectively)trapped from Penghu area. The mean level of bone lead of three species (R. novegicus, 71.70±14.98μg/g,=113; S. murinus, 70.59±31.09 mg/ g, n=18; R.rattus, 69.63±22.26μg/g,=6) trapped from Kaohsiung area are alsosignificantly higher than the same species (36.07±28.44 μg/g,n=13; 23.88±6.47μg/g,=19; 48.56±14.22μg/ g,=13; respectively) trapped from Penghu area.The level of blood lead in hybrid is 2.22±1.20 μg/dL,A good linearrelationship between blood and bone lead for wild small mamuals can befoundstatistical significantly. Meanwhile, the level of blood lead and bone leadis also closely related to the level of soil lead.The approach to absorb lead by wild small mammals into the body is verysimilar to that by human .Using wild samll mammals as biomonitor cancontinuously sample the environment in which it lives and act as an integrat-ing sampler. From this study, we find that the wild small mammals can reflectthe exposure of environmental lead more accurately than human. Therefore,using wild small mammals to evaluate the improvement of pollution by envi-ronmental lead might be an ideal bioindicator.