Uhnák J, Veningerová M, Madaric A, Szokolay A
IARC Sci Publ. 1986(77):109-13.
Epidemiological studies of food contamination in an area of intensive agriculture for the years 1975-1983 showed that hexachlorobenzene (HCB) was present in all food-chain links, although HCB has not been used in Czechoslovakian agriculture since 1980. Samples of potatoes, wheat, milk fat, eggs, meat and human milk were analysed by gas-liquid chromatography with electron-capture detector. Levels of HCB residues ranged from 0.02 (potatoes) to 2.5 mg/kg (human milk, fat basis). A study of HCB accumulation in eggs from a poultry experiment showed that HCB levels in eggs can reach about twice the level given in feed at 7-10 weeks.
1975年至1983年对某集约化农业地区食品污染进行的流行病学研究表明，尽管自1980年以来捷克斯洛伐克农业中已不再使用六氯苯（HCB），但在所有食物链环节中均检测到了六氯苯。采用带电子捕获检测器的气液色谱法对土豆、小麦、乳脂、鸡蛋、肉类和母乳样本进行了分析。六氯苯残留量范围为0.02（土豆）至2.5毫克/千克（以脂肪计的母乳）。一项关于家禽实验中鸡蛋六氯苯积累情况的研究表明，在7至10周时，鸡蛋中的六氯苯含量可达到饲料中含量的两倍左右。
