Tamayo R, Matus N, Montes L, Cristi R
Instituto de Medicina Preventiva Veterinaria, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia.
Rev Med Chil. 1994 Jul;122(7):746-53.
PCBs were detected using gas liquid chromatography in 540 human milk samples coming from 180 mothers living in three provinces of the Southern Region of Chile, collected in three different stages of lactation. Samples coming from 33 women (18.3%) had PCBs residues, with a median level of 1.28 (range 0.09-84.83) ppm (milk fat basis). Ten of these women delivered to their offspring more than 0.01 mg of PCB/kg body weight/day, level considered hazardous to child health. PCB levels tended to increase toward the third sampling stage. These levels were not related to women's age but primiparae had higher levels than multiparae. It is concluded that a surveillance system in biological samples is necessary to oversee PCB levels in different regions of the country.
采用气液色谱法对来自智利南部地区三个省份的180名母亲的540份母乳样本进行了多氯联苯（PCB）检测，这些样本是在三个不同哺乳期阶段采集的。来自33名女性（18.3%）的样本含有PCB残留，以乳脂计，中位数水平为1.28（范围0.09 - 84.83）ppm。其中10名女性传给其后代的PCB超过0.01毫克/千克体重/天，这一水平被认为对儿童健康有害。PCB水平在第三个采样阶段有上升趋势。这些水平与女性年龄无关，但初产妇的水平高于经产妇。得出的结论是，有必要建立一个生物样本监测系统，以监督该国不同地区的PCB水平。
