NDLI: Seasonal and Vertical Variability of Acid-Volatile Sulfide in the Sediments of Taohua River, China

Content Provider	IEEE Xplore Digital Library
Author	Qinglin Xie Zhenping Li Yanhong Li Guoling Huang
Copyright Year	2010
Abstract	Acid volatile sulfide (AVS) mainly controls the chemical activity and toxicity of heavy metals in sediment. The main aim of this paper is to investigate the seasonal and vertical variability of AVS in the sediments of Taohua River, Guilin, China. By means of acidification - gas blowing, the AVS content of 11 surface sediment samples, collected respectively in April, August and December 2004, was determined to identify the seasonal effect. Three sediment cores were collected from different depth and analyzed in order to reveal the vertical distribution of AVS. Our results indicate that the AVS mean value is 0.6068µmol/g (dry sediment) in April, 31.3297µmol/g (dry sediment) in August, and 0.5727µmol/g (dry sediment) in December, respectively, showing that the AVS content reaches the highest in Summer, lowest in Winter, and intermediate value in Autumn and Spring. The AVS concentration also varies with depth: it increases with depth at beginning, and then drops down as the depth continuously becomes greater.
Starting Page	1
Ending Page	4
File Size	243040
Page Count	4
File Format	PDF
ISBN	9781424447121
ISSN	21517622
DOI	10.1109/ICBBE.2010.5514903
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-18
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bridges Rails Temperature Toxic chemicals Sampling methods Educational institutions Rivers Sediments Springs Chemical technology
Content Type	Text
Resource Type	Article

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