Bowie C, Hill A, Murray V
Public Health Research and Consultancy, Clayhanger, Chard, Somerset.
Public Health. 1998 Jul;112(4):249-55. doi: 10.1016/S0033-3506(98)00241-8.
This study sought to identify possible illnesses of people exposed to lindane and methyl mercury following a pollution incidence in Somerton, Somerset, UK.
A self-administered questionnaire survey was posted to 1500 residents in three selected areas of Somerton to identify symptoms of possible illness over a 3 month period.
There was a 74% response rate. People living near the stream had higher levels of reported mental symptoms and itching skin than in controls. Poisoning as the cause of the mental symptoms was excluded as the individuals had normal blood levels of lindane or mercury. Other symptoms were no higher in one area than another or from one time period to another.
The survey, using controls in time and space, was able to explore, the pollution incident's contribution to the toxicity of residents and how this related to mental symptoms experienced by the residents.
本研究旨在确定英国萨默塞特郡索默顿发生污染事件后,接触林丹和甲基汞的人群可能患有的疾病。
向索默顿三个选定区域的1500名居民发放了一份自行填写的问卷调查,以确定在三个月内可能患病的症状。
回复率为74%。住在溪流附近的人报告的精神症状和皮肤瘙痒水平高于对照组。由于个体血液中林丹或汞含量正常,排除了中毒作为精神症状的病因。其他症状在一个区域与另一个区域之间或不同时间段之间并无差异。
该调查通过在时间和空间上设置对照组,得以探究污染事件对居民毒性的影响,以及这与居民所经历的精神症状之间的关系。