Lloyd O L, Lloyd M M, Williams F L, Lawson A
Wolfson Institute of Occupational Health, Department of Community Medicine, Ninewells Medical School, University of Dundee, UK.
Br J Ind Med. 1988 Aug;45(8):556-60. doi: 10.1136/oem.45.8.556.
Human populations and animals are often exposed to the airborne pollutants in plumes from incinerators. The incineration of chemical and other waste may release polychlorinated hydrocarbons, some of which have oestrogenic properties. Increased numbers of twins had been reported anecdotally in cattle at risk from plumes from two incinerators near the town of Bonnybridge in central Scotland and also in cattle near a chemical factory in Eire. It was decided to follow up these reports in central Scotland and also to test the hypothesis that the frequency of human twinning might be increased there. Data on human twin and single births in hospitals in central Scotland were obtained for the years 1975-83. The twinning rates in areas exposed to airborne pollution from incinerators were compared with the background rates present in neighbouring areas. Farmers provided information on calving among the herds of two farms close to the incinerators. The frequency of human twinning was increased, particularly after 1979, in the areas most at risk from air pollution from the incinerators. Among the dairy cattle, there was a dramatic increase in twinning at about the same time.
人类和动物常常暴露于焚化炉排放的空气中的污染物中。化学废物及其他废弃物的焚烧可能会释放多氯代烃，其中一些具有雌激素特性。据传闻，在苏格兰中部邦尼布里奇镇附近两座焚化炉排放的污染物影响范围内的牛群中，双胞胎数量有所增加，在爱尔兰一家化工厂附近的牛群中也是如此。因此决定对苏格兰中部的这些报告进行跟进，并检验人类双胞胎出生率可能在此增加的假设。获取了1975年至1983年苏格兰中部医院的人类双胞胎和单胞胎出生数据。将受焚化炉空气污染影响地区的双胞胎出生率与周边地区的背景出生率进行了比较。农民们提供了靠近焚化炉的两个农场牛群产犊情况的信息。在受焚化炉空气污染影响最严重的地区，人类双胞胎出生率有所增加，尤其是在1979年之后。在奶牛中，大约在同一时间双胞胎出生率也急剧上升。
