Arsenic in Drinking Water--The Silent Killer

Autor/in	Wajrak, Magdalena
Titel	Arsenic in Drinking Water--The Silent Killer
Quelle	In: School Science Review, 93 (2011) 343, S.81-86 (6 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0036-6811
Schlagwörter	Water; Foreign Countries; Safety; Science Equipment; Identification; Science Education; Field Tests; Global Approach; Scientific Concepts; Environmental Education; Scientific Research; Argentina; Bangladesh; Chile; India; Mexico; Mongolia; Taiwan + Suchen Sie Ihr Suchwort? Wasser; Ausland; Sicherheit; Identifikation; Identifizierung; Naturwissenschaftliche Bildung; Praxisübung; Globales Denken; Umweltbildung; Umwelterziehung; Umweltpädagogik; Argentinien; Bangladesch; Indien; Mexiko; Mongolei
Abstract	Natural arsenic salts are present in all waters, with natural concentrations of less than 10 parts per billion (ppb). Unfortunately, there is an increasing number of countries where toxic arsenic compounds in groundwater, which is used for drinking and irrigation, have been detected at concentrations above the World Health Organization's determined safe drinking limit of 10 ppb. Of particular concern is the situation in Bangladesh, where it is estimated that there are more than 1 million people drinking arsenic-rich water (above 50 ppb). It is imperative that people stop using wells where arsenic levels are high. There is as yet no reliable, simple and field-based method for arsenic detection. However, this article describes a promising technique that could be used to detect arsenic in the field using a PDV6000+ portable digital voltammeter. (Contains 5 figures and 1 table.) (As Provided).
Anmerkungen	Association for Science Education. College Lane Hatfield, Herts, AL10 9AA, UK. Tel: +44-1-707-283000; Fax: +44-1-707-266532; e-mail: info@ase.org.uk; Web site: http://www.ase.org.uk
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10