Risk-based assessment of arsenic-affected aquacultural water in blackfoot disease hyperendemic areas

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Title:	Risk-based assessment of arsenic-affected aquacultural water in blackfoot disease hyperendemic areas
Authors:	林明炤;Lin, Ming-Chao;Jang, Cheng-Shin;Lin, Kao-Hung;Liu, Chen-Wuing
Contributors:	通識教育中心
Keywords:	Groundwater;Risk-based management;Aquacultural water;Uncertainty
Date:	2009-07
Issue Date:	2018-06-13 10:08:44 (UTC+8)
Abstract:	This work explored a risk-based arsenic (As) regulation in farmed pond water by ingesting tilapia (Oreochromis mossambicus) in blackfoot disease hyperendemic areas and discussed a rational As regulation in pond water. Monte Carlo analysis was used to propagate the parameter uncertainty and to assess probabilistically regulation risks. A dynamic scheme of groundwater management was proposed that curves of utilization ratios against As concentrations in groundwater were established based on the risk-based regulation. The 5th to 95th percentiles of risks range from 3.5 × 10⁻⁷ to 6.0 × 10⁻⁵ via ingesting the farmed tilapia under the current As regulation in farmed pond water in Taiwan, 50 µg/L. To compare to inorganic As regulation in drinking water, the current As regulation in farmed pond water does not pose a great threat to human health, but it is unsafe. Therefore, this study suggests that the regulation of As in farmed pond water is revised to be 25 µg/L.
Relation:	Stochastic Environmental Research and Risk Assessment vol. 23, no. 5 pp.603-612
Appears in Collections:	[Center for General Education] Periodical Articles

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