运用支付意愿来评估加拿大住宅氡暴露指南的实施情况。
Using willingness to pay to evaluate the implementation of Canada's residential radon exposure guideline.
作者信息
Spiegel Jerry M, Krewski Daniel
机构信息
Department of Community Health Sciences, Faculty of Medicine, University of Manitoba, Winnipeg, MB.
出版信息
Can J Public Health. 2002 May-Jun;93(3):223-8. doi: 10.1007/BF03405005.
BACKGROUND
The objective of this investigation was to determine the effectiveness of Canada's residential radon exposure guideline in influencing individuals' health protection decisions.
METHOD
Homeowners with known exposure levels in a high residential radon area (Winnipeg, Manitoba) were surveyed to document what they had done and spent to reduce their exposure to radon. The 507 respondents were then re-surveyed to elucidate their response to hypothetical scenarios. Logistic regression was used to model risk reduction decisions as a function of exposure and other explanatory variables.
RESULTS
Homeowners were only likely to have taken action to reduce exposure at levels exceeding 1,100 Bq/m3, well above Canada's guideline of 800 Bq/m3. However, when informed of the guideline, respondents indicated they would act at exposures of 702 Bq/m3.
INTERPRETATION
The Canadian residential radon exposure guideline, as it has been implemented, has not effectively prompted homeowner actions to reduce exposures to radon.
背景
本调查的目的是确定加拿大住宅氡暴露指南在影响个人健康保护决策方面的有效性。
方法
对高住宅氡区域（曼尼托巴省温尼伯市）中已知暴露水平的房主进行调查，记录他们为降低氡暴露所采取的措施及花费。然后对507名受访者进行再次调查，以阐明他们对假设情景的反应。使用逻辑回归将风险降低决策建模为暴露及其他解释变量的函数。
结果
房主仅在暴露水平超过1100贝克勒尔/立方米时才可能采取行动降低暴露，这远高于加拿大800贝克勒尔/立方米的指南。然而，当被告知该指南时，受访者表示他们会在702贝克勒尔/立方米的暴露水平时采取行动。
解读
已实施的加拿大住宅氡暴露指南未能有效促使房主采取行动降低氡暴露。
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