检测了５类环境样品和１２类食物样品中五氯酚的浓度分布和污染趋势。以实测数据计算出污染区人群个体五氯酚日暴露量为０．５５～０．５８μｇ，通过双份膳食法研究和人体材料检测，得出污染区成人每日平均摄入五氯酚０．５７μｇ，体负荷２．３７ｍｇ．健康调查发现，污染区长期低剂量接触五氯酚人群全血胆碱酯酶活性和白细胞总数显著低于对照区，认为五氯酚污染可能是导致相同标准人口数中癌死亡人数高于对照区２～３倍的重要因素之一。本研究为制定三氯酚环境生态污染防治对策和保护人群健康提供了依据。 Pentachlorophenol concentrations and pollution trends were examined in five environmental samples and twelve food samples. Based on the measured data, daily exposure of pentachlorophenol to contaminated area was 0.55-0.58μg. The average daily intake of pentachlorophenol in adult population in contaminated area was obtained by double dietary studies and human material testing. 57 μg, body load 2.37 mg. Health survey found that chronic low-dose exposure to pentachlorophenol in polluted areas of the whole blood cholinesterase activity and the total number of leukocytes was significantly lower than the control area, that pentachlorophenol pollution may result in the same standard population in the number of cancer deaths higher than the control area 2 to 3 times one of the important factors. This study provides the basis for the prevention and control of trichlorophenol environmental pollution and the protection of population health.