Increased pollution leads to a constant decrease of drinking water quality worldwide. Due to safety concerns, unpleasant taste and odour only about 3% of the population in South Korea is drinking untreated tap water. The present study uses choice experiments and cost-benefit analysis to investigate the feasibility of installing advanced water treatments in Cheongju waterworks in South Korea. The waterworks is situated in the middle of the country and is providing more than half a million people with drinking water. The study shows that the lower bound of the median WTP for installing a new advanced water treatment system is about $ 2 US/month, which is similar to the average expenditures for bottled water per household in South Korea. Scenarios under which the instalment of the advanced water treatments is feasible are discussed together with environmental solutions in the long-run. Acknowledgement : The authors would like to thank Rob Fraser for setting the road map for this research. They would also like to thank Iain Fraser for his help with the design of the choice experiment and Korea-Water for sponsoring this project.

中文翻译：

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改善韩国的饮用水质量：假设性偏差处理的选择实验

污染的加剧导致全球饮用水质量不断下降。出于安全考虑，在韩国只有大约 3% 的人口饮用未经处理的自来水，难闻的味道和气味。本研究使用选择实验和成本效益分析来研究在韩国清州自来水厂安装先进水处理装置的可行性。自来水厂位于该国中部，为超过 50 万人提供饮用水。研究表明，安装新的先进水处理系统的 WTP 中位数的下限约为 2 美元/月，这与韩国每户家庭瓶装水的平均支出相似。从长远来看，与环境解决方案一起讨论了安装高级水处理可行的情景。致谢：作者要感谢 Rob Fraser 为本研究制定路线图。他们还要感谢 Iain Fraser 在选择实验设计方面的帮助和韩国水务公司对这个项目的赞助。