Effects of local and spatial conditions on the quality of harvested rainwater in the Mekong Delta, Vietnam

Wilbers, Gert-Jan, Sebesvari, Zita, Rechenburg, Andrea and Renaud, Fabrice G., (2013). Effects of local and spatial conditions on the quality of harvested rainwater in the Mekong Delta, Vietnam. Environmental Pollution, 182 225-232

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  • Sub-type Journal article
    Author Wilbers, Gert-Jan
    Sebesvari, Zita
    Rechenburg, Andrea
    Renaud, Fabrice G.
    Title Effects of local and spatial conditions on the quality of harvested rainwater in the Mekong Delta, Vietnam
    Appearing in Environmental Pollution
    Volume 182
    Publication Date 2013
    Place of Publication Philadelphia
    Publisher Elsevier
    Start page 225
    End page 232
    Language eng
    Abstract

    The objective of this study was to assess the quality of harvested rainwater in the Mekong Delta (MD), Vietnam for local (roof types, storage system and duration) and spatial (proximity of industry, main roads, coastline) conditions. 78 harvested rainwater samples were collected in the MD and analyzed for pH, turbidity, TDS, COD, nutrients (NH4, NO3, NO2, o-PO4), trace metals and coliforms. The results show that thatch roofs lead to an increase of pollutants like COD (max 23.2 mgl?1) and turbidity (max 10.1 mgl?1) whereas galvanized roofs lead to an increase of Zn (max 2.2 mgl?1). The other local and spatial parameters had no or only minor influence on the quality of household harvested rainwater. However, lead (Pb) (max. 16.9 ?gl?1) and total coliforms (max. 102 500 CFU100 ml?1) were recorded at high concentrations, probably due to a variety of household-specific conditions such as rainwater storage, collection and handling practices.

    Copyright Holder Elsevier
    Copyright Year 2013
    Copyright type All rights reserved
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    Created: Fri, 17 Oct 2014, 12:36:49 JST