文章基本信息

标题：Basement and alluvial aquifers of Malawi: An overview of groundwater quality and policies
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作者：Harold W. T. Mapoma ; Xianjun Xie*
期刊名称：African Journal of Environmental Science and Technology
电子版ISSN：1996-0786
出版年度：2014
卷号：8
期号：3
页码：190-202
DOI：10.5897/AJEST2013.1639
语种：English
出版社：Academic Journals
摘要：This paper highlights the quality of groundwater in basement and alluvial aquifers of Malawi through literature assessment. Groundwater in these aquifers serves about 60% of Malawian population. Alluvial aquifers yield high groundwater in excess of 10 L/s and more mineralized than basement aquifers. The values from literature are presented as ranges. The geochemical quality of both aquifer types are classified as good. However, in some cases values higher than maximum permissible limits (MPL) are worrisomely apparent. Significant levels for some elements have been demonstrated. Although groundwater policies and instruments are available, more groundwater research, monitoring, data archiving is needed.
关键词：Alluvial aquifer; basement complex; groundwater quality; borehole water; shallow wells; Malawi