Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6317065 | Environmental Pollution | 2013 | 8 Pages |
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 mglâ1) and turbidity (max 10.1 mglâ1) whereas galvanized roofs lead to an increase of Zn (max 2.2 mglâ1). 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 μglâ1) and total coliforms (max. 102 500 CFU100 mlâ1) were recorded at high concentrations, probably due to a variety of household-specific conditions such as rainwater storage, collection and handling practices.
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Authors
Gert-Jan Wilbers, Zita Sebesvari, Andrea Rechenburg, Fabrice G. Renaud,