Are existing drinking water sources safe from As contamination in Hanam province, Vietnam?

Autor:	Kyoung-Woong Kim, Mathuros Ruchirawat, Dac Phu Tran, Duy Bao Nguyen, Manh Cuong Do, Panida Navasumrit
Rok vydání:	2013
Předmět:	Arsenic contamination of groundwater Geophysics Geochemistry and Petrology Water source Environmental science Raw water Contamination Water resource management Groundwater Water demand Rainwater harvesting
Zdroj:	GEOCHEMICAL JOURNAL. 47:363-368
ISSN:	1880-5973 0016-7002
DOI:	10.2343/geochemj.2.0247
Popis:	This study investigated arsenic (As) concentrations in existing drinking water sources in Hanam province, Vietnam. Sand-filtered groundwater, piped water, raw groundwater, and a type of drinking water mostly sourced from rainwater (hereafter referred to as the “stored rainwater”) are commonly used for drinking purposes in this area. It was found that all water sources contained different levels of toxic As. The highest levels were found in raw groundwater, followed by sandfiltered water, piped water, and stored rainwater. More than 50% of the stored rainwater samples contained As levels above the WHO recommendation value. As such, the daily As uptake in local residents from this kind of stored rainwater may be larger than previously considered because they consume stored rainwater as an alternative drinking water source. Relatively high levels of As in the stored rainwater samples also suggested that residents possibly mix rain and groundwater in rainwater containers in order to meet their daily water demand.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::97ccbeeb5b3689b1c3e67cbffdda7691 https://doi.org/10.2343/geochemj.2.0247 Zobrazit plný text záznamu