NDLI: Arsenic speciation in polychaetes (Annelida) and sediments from the intertidal mudflat of Sundarban mangrove wetland, India

Content Provider	Springer Nature Link
Author	Watts, M. J. Barlow, T. S. Button, M. Sarkar, S. K. Bhattacharya, B. D. Alam, Md. Aftab Gomes, A.
Copyright Year	2012
Abstract	This paper documents the concentration of total arsenic and individual arsenic species in four soft-bottom benthic polychaetes (Perenereis cultifera, Ganganereis sootai, Lumbrinereis notocirrata and Dendronereis arborifera) along with host sediments from Sundarban mangrove wetland, India. An additional six sites were considered exclusively for surface sediments for this purpose. Polychaetes were collected along with the host sediments and measured for their total arsenic content using inductively coupled plasma mass spectrometry. Arsenic concentrations in polychaete body tissues varied greatly, suggesting species-specific characteristics and inherent peculiarities in arsenic metabolism. Arsenic was generally present in polychaetes as arsenate (AsV ranges from 0.16 to 0.50 mg kg−1) or arsenite (AsIII ranges from 0.10 to 0.41 mg kg−1) (30–53 % as inorganic As) and dimethylarsinic acid (DMAV <1–25 %). Arsenobetaine (AB < 16 %), and PO4-arsenoriboside (8–48 %) were also detected as minor constituents, whilst monomethylarsonic acid (MAV) was not detected in any of the polychaetes. The highest total As (14.7 mg kg−1 dry wt) was observed in the polychaete D. arborifera collected from the vicinity of a sewage outfall in which the majority of As was present as an uncharacterised compound (10.3 mg kg−1 dry wt) eluted prior to AB. Host sediments ranged from 2.5 to 10.4 mg kg−1 of total As. This work supports the importance of speciation analysis of As, because of the ubiquitous occurrence of this metalloid in the environment, and its variable toxicity depending on chemical form. It is also the first work to report the composition of As species in polychaetes from the Indian Sundarban wetlands.
Starting Page	13
Ending Page	25
Page Count	13
File Format	PDF
ISSN	02694042
Journal	Environmental Geochemistry and Health
Volume Number	35
Issue Number	1
e-ISSN	15732983
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-06-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arsenic Sundarban Polychaetes Arsenic speciation Sediment Environmental Health Geochemistry Terrestrial Pollution Soil Science & Conservation Environmental Chemistry Public Health
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Medicine Geochemistry and Petrology Environmental Engineering Water Science and Technology

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