Sharma R P, Shupe J L
Sci Total Environ. 1977 Jan;7(1):53-62. doi: 10.1016/0048-9697(77)90016-x.
The relationships of the residues of lead, cadmium, and arsenic in animal tissues to those in surrounding vegetation and soil were determined in a natural habitat representing a wide range of such residues. The samples studied were selected from 18 different locations. Analyses were performed on a total of 113 animals, 332 plant specimens (representing 33 species), and 408 soil samples (taken at different depths). For the purpose of evaluating relationships, the samples from each location were averaged and reported as parts per million on a dry weight basis. The average lead residues from different locations ranged from 1.4-9.2 ppm in the liver, 45-195 in bones, 4-283 in vegetation, and 15-1399 in soil samples. The cadmium contents ranged from 1-27 ppm in the liver, 3-77 in bones, 0.5-5 in vegetation, and 1-10 in soil. The arsenic contents in different components of the ecosystem varied with an average of 1-9 ppm in liver, 0.6-94 in vegetation, and 7-655 in soil samples. The soil residues varied considerably according to the depth of sampling. Little variation was noted in different species of vegetation or in soil and vegetation samples according to the time and year of sampling. Statistical analyses performed on the averages indicated a significant correlation between vegetation and soil residues for all three elements, and also between animal to vegetation and animal to soil cadmium residues. Multiple linear correlations for all elements in soil, vegetation, and animal tissues were determined. The results indicated a possibility of an increase in cadmium in animal tissues depending upon the increased residues of this metal in the environment.
在一个代表广泛此类残留量的自然栖息地中，测定了动物组织中铅、镉和砷的残留量与周围植被和土壤中这些元素残留量之间的关系。所研究的样本选自18个不同地点。总共对113只动物、332个植物标本（代表33个物种）和408个土壤样本（取自不同深度）进行了分析。为了评估它们之间的关系，将每个地点的样本进行平均，并以干重为基础报告为百万分之一。不同地点肝脏中铅的平均残留量在1.4 - 9.2 ppm之间，骨骼中为45 - 195 ppm，植被中为4 - 283 ppm，土壤样本中为15 - 1399 ppm。镉含量在肝脏中为1 - 27 ppm，骨骼中为3 - 77 ppm，植被中为0.5 - 5 ppm，土壤中为1 - 10 ppm。生态系统不同组成部分中的砷含量各不相同，肝脏中平均为1 - 9 ppm，植被中为0.6 - 94 ppm，土壤样本中为7 - 655 ppm。土壤残留量根据采样深度有很大差异。根据采样时间和年份，在不同种类的植被或土壤与植被样本中未发现明显差异。对平均值进行的统计分析表明，所有三种元素在植被和土壤残留量之间存在显著相关性，动物与植被以及动物与土壤中的镉残留量之间也存在显著相关性。确定了土壤、植被和动物组织中所有元素的多重线性相关性。结果表明，动物组织中的镉可能会随着环境中该金属残留量的增加而增加。
