人类活动对铬生物地球化学循环的影响  

Effects on Biogeochemical Cycles of Chromium from Anthropogenic Sources

作　　者：朱定祥[1] 倪守斌[1] 

机构地区：[1]中国科学技术大学地球与空间科学学院

出　　处：《上海环境科学》2005年第3期124-128,共5页Shanghai Environmental Sciences

基　　金：国家重点基础研究课题,编号2001—CB409806

摘　　要：通过建立2个简单的铬生物地球化学循环模型PM和CM，来说明人类工业活动对铬的生物地球化学循环的影响。通过对PM和CM的比较发现，人类的工业活动每年向陆地，海洋和大气圈中输入的铬总量达1．07×10^12g，分别占到其各自总输入通量中的69．65％、56．96％和38．23％，人类活动向环境中释放的铬正成为其主要来源。Two simple biogeochemical cycle models （PM and CM） were developed to demonstrate the influence of anthropogenic chromium on the biogeochemical cycles of this trace metal. By comparing PM and CM, it was estimated that the annual chromium emission from anthropogenic sources amounted to 1.07× 10^12 grams accounting for 69.65% of total land loading, 56.96% of total oceanic loading and 38.23% of total atmospheric loading. It revealed that the anthropogenic chromium emission to the environment has become a major contributor.

关 键 词：人类 铬 生物地球化学 循环 生物效应 

分 类 号：X142[环境科学与工程—环境科学] X24