一、前言由于工业三废排入环境中对人体健康带来一定的影响,这就必须对有毒元素以及某些目前对其毒性还不十分了解的元素,引入环境中所产生的生物效应进行研究。已经发现汞,镉,钼,硒等许多微量元素在各种疾病中会产生有害的效应。特别是某些有毒元素,当有其它元素存在情况下,它的毒性要比其单独存在大得多即加合效应,相反情况即抑制效应。这就要求环境污染分析,尽可能多测些元素,以 I. Preface As industrial waste into the environment on the human health have a certain impact, which must be toxic elements and some of the current elements of its toxicity is not yet fully understood, the introduction of the biological effects of the environment to study. Many trace elements such as mercury, cadmium, molybdenum, selenium have been found to have detrimental effects in various diseases. In particular, some toxic elements, when there are other elements in the case, its toxicity than its existence alone is additive effect, the opposite situation that inhibit the effect. This requires environmental pollution analysis, measuring as many elements as possible