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首页> 外文期刊>Environmental Science & Technology >Cost-Benefit Analysis of the Swiss National Policy on Reducing Micropollutants in Treated Wastewater
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Cost-Benefit Analysis of the Swiss National Policy on Reducing Micropollutants in Treated Wastewater

机译：瑞士减少已处理废水中微污染物国家政策的成本效益分析

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摘要

Contamination of freshwater with micropollutants (MPs) is a growing concern worldwide. Even at very low concentrations, MPs can have adverse effects on aquatic ecosystems and possibly also on human health. Switzerland is one of the first countries to start implementing a national policy to reduce MPs in the effluents of municipal sewage treatment plants (STPs). This paper estimates the benefits of upgrading STPs based on public's stated preferences. To assess public demand for the reduction of the environmental and health risks of MPs, we conducted a choice experiment in a national online survey. The results indicate that the average willingness to pay per household is CHF 100 (US$ 73) annually for reducing the potential environmental risk of MPs to a low level. These benefits, aggregated over households in the catchment of the STPs to be upgraded, generate a total annual economic value of CHF 155 million (US$ 113 million). This compares with estimated annual costs for upgrading 123 STPs of CHF 133 million (US$ 97 million) or CHF 86 (US$ 63) per household connected to these STPs. Hence, a cost-benefit analysis justifies the investment decision from an economic point of view and supports the implementation of the national policy in the ongoing political discussion.
机译：全球范围内，越来越多的人关注微污染物（MPs）对淡水的污染。即使在非常低的浓度下，MP也会对水生生态系统以及人类健康产生不利影响。瑞士是开始实施国家政策以减少市政污水处理厂（STP）废水中MP的首批国家之一。本文根据公众陈述的偏好估计了升级STP的好处。为了评估公众对减少国会议员的环境和健康风险的需求，我们在一项全国在线调查中进行了一项选择实验。结果表明，为了将国会议员的潜在环境风险降低到较低水平，每户平均每年的支付意愿为100瑞士法郎（73美元）。在将要升级的STP的集水区中，这些收益汇总到家庭中，产生的年度经济总价值为1.55亿瑞士法郎（1.13亿美元）。与此相比，升级与这些STP相关的每个家庭的123个STP的估算年度成本为1.33亿瑞士法郎（9,700万美元）或86瑞士法郎（63美元）。因此，成本效益分析从经济角度证明了投资决策的合理性，并在正在进行的政治讨论中支持了国家政策的实施。

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  • 来源
    《Environmental Science & Technology》 |2014年第21期|12500-12508|共9页
  • 作者

    Ivana Logar; Roy Brouwer; Max Maurer; Christoph Ort;

  • 作者单位

    Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Duebendorf, Switzerland;

    Department of Environmental Economics, Institute for Environmental Studies, VU University Amsterdam, 1081 HV Amsterdam, The Netherlands;

    Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Duebendorf, Switzerland,Institute of Environmental Engineering, Swiss Federal Institute of Technology (ETH) Zuerich, 8093 Zuerich, Switzerland;

    Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Duebendorf, Switzerland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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