文章基本信息

标题：Estimation of packaged water consumption and associated plastic waste production from household budget surveys
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作者：Nicola A Wardrop ; Mawuli Dzodzomenyo ; Genevieve Aryeetey 等
期刊名称：Environmental Research Letters
印刷版ISSN：1748-9326
电子版ISSN：1748-9326
出版年度：2017
卷号：12
期号：7
页码：074029
DOI：10.1088/1748-9326/aa751f
语种：English
出版社：IOP Publishing Ltd
摘要：Packaged water consumption is growing in low- and middle-income countries, but the magnitude of this phenomenon and its environmental consequences remain unclear. This study aims to quantify both the volumes of packaged water consumed relative to household water requirements and associated plastic waste generated for three West African case study countries. Data from household expenditure surveys for Ghana, Nigeria and Liberia were used to estimate the volumes of packaged water consumed and thereby quantify plastic waste generated in households with and without solid waste disposal facilities. In Ghana, Nigeria and Liberia respectively, 11.3 (95% confidence interval: 10.3–12.4), 10.1 (7.5–12.5), and 0.38 (0.31–0.45) Ml day⁻¹ of sachet water were consumed. This generated over 28 000 tonnes yr⁻¹ of plastic waste, of which 20%, 63% and 57% was among households lacking formal waste disposal facilities in Ghana, Nigeria and Liberia respectively. Reported packaged water consumption provided sufficient water to meet daily household drinking-water requirements for 8.4%, less than 1% and 1.6% of households in Ghana, Nigeria and Liberia respectively. These findings quantify packaged water's contribution to household water needs in our study countries, particularly Ghana, but indicate significant subsequent environmental repercussions.