尿中三氯乙酸是接触三氯乙烯的生物监测指标。为探讨深圳市尿三氯乙酸生物接触限值,我们对该市210名无职业性接触三氯乙烯的健康成人,作了尿三氯乙酸测定,以供三氯乙烯中毒诊断作参考。1　对象与方法1.1　受检对象210名受检者均无职业性接触三氯乙烯史,身体健康,包括工人、机关 Trichloroacetic acid in urine is a biological indicator of exposure to trichlorethylene. To explore the limits of exposure to urinary trichloroacetic acid in Shenzhen City, we measured urinary trichloroacetic acid for 210 healthy adults without occupational exposure to trichlorethylene in the city for the reference of the diagnosis of trichlorethylene poisoning. 1 Subjects and methods 1.1 subjects were 210 subjects without occupational exposure to trichlorethylene history, good health, including workers, institutions