title: The fate and transport of arsenic species in the aquatic ecosystem: a case study on Bestari Jaya, Peninsular Malaysia.
abstract: The field of arsenic pollution research has grown rapidly in recent years. Arsenic constitutes a broad range of elements from the Earth's crust and is released into the environment from both anthropogenic and natural sources due to its relative mobility under different redox conditions. The toxicity of arsenic is described in its inorganic form, as inorganic arsenic compounds can leach into different environments. Sampling was carried out in the Bestari Jaya catchment while using a land use map to locate the site, and experiments were conducted via sequential extraction and inductively coupled plasma optical emission spectroscopy to quantify proportions of arsenic in the sediment samples. The results show that metals in sediments of nonresidual fractions, which are more likely to be likely released into aquatic environments, are more plentiful than the residual sediment fractions. These findings support the mobility of heavy metals and especially arsenic through sediment layers, which can facilitate remediation in environments heavily polluted with heavy metals.
authors.affiliation: Department of Geology, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
authors.forename: Suzanne Christine Aboudi
authors.initials: SCA
authors.lastname: Mana
authors.affiliation: Department of Geology, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia.
authors.forename: Ng Tham
authors.initials: NT
authors.lastname: Fatt
authors.affiliation: Department of Environmental Sciences and Engineering, School of Environmental Studies, China University Of Geosciences, 430074, Wuhan, People's Republic of China. chemaqeel@gmail.com.
authors.forename: Muhammad Aqeel
authors.initials: MA
authors.lastname: Ashraf
mesh_terms: D001151:Arsenic / Q000032:analysis*; D017753:Ecosystem; D004784:Environmental Monitoring / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D008296:Malaysia; D019216:Metals, Heavy / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D001151:Arsenic
keywords: Arsenic; Bestari Jaya; Heavy metals; Water quality