通过对炎热干旱环境下野外作业工人冬夏两季体液（血液、唾液，尿液）中钙、镁、锌元素含量的分析测定，指出干旱炎热环境将使机体对上述元素的排泄增加，不同元素，排泄途径不同。结果提示在报告或引用人体体液中金属元素含量时，应注意季节，环境等因素的影响 Through the analysis of the contents of calcium, magnesium and zinc in body fluids (blood, saliva and urine) of field workers in hot and dry conditions in winter and summer, it is pointed out that arid hot environment will increase the body excretion of these elements, Different ways of excretion. The results suggest that in reporting or quoting human body fluid metal element content, should pay attention to the seasonal, environmental and other factors