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yichouwann: ½ð±Ò+10, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ·Ç³£¸Ðл£¡ 2013-11-08 23:45:34
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¹§Ï²Â¥Ö÷£¬ÒѾ¼ìË÷¡£ Accession number: 20134416915931 Title: Acid volatile sulfide (AVS) and simultaneously extracted metals (SEM) in surface sediments of Chaohu Lake, Anhui Province, China Authors: Chen, Shu Qin1, 2 Email author chenshq@aqtc.edu.cn; Zhang, Lei3 Email author zhangl@craes.cn; Chu, Zhao Sheng3 Email author chuzs@craes.cn; Hu, She Rong1 Email author hsr516@163.com Author affiliation: 1 College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China 2 School of Resource and Environment, Anqing Normal College, Anqing 246011, China 3 Research Center of Lake Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China Corresponding author: Hu, S. R. (hsr516@163.com) Source title: Advanced Materials Research Abbreviated source title: Adv. Mater. Res. Volume: 779 Monograph title: Materials, Transportation and Environmental Engineering Issue date: 2013 Publication year: 2013 Pages: 1213-1219 Language: English ISSN: 10226680 ISBN-13: 9783037858042 Document type: Conference article (CA) Conference name: 2013 International Conference on Materials, Transportation and Environmental Engineering, CMTEE 2013 Conference date: August 21, 2013 - August 23, 2013 Conference location: Taichung, Taiwan Conference code: 100402 Sponsor: National Chin-Yi University of Technology; National Cheng Kung University; National Sun Yan-Sen University; National Chi Nan University; ChienKuo Technology University; et al Publisher: Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland Abstract: At present there are few studies on the AVS and SEM in sediments of Chaohu Lake. Most of the previous studies on heavy metals based on the one time, the short-time or a local-scale survey. In this paper, [AVS] and [SEM] in Chaohu Lake surface sediments were studied for different seasons in 2007, 2008 and 2009. The results showed that: (a) The three-year average of [AVS] and [¦²SEM] in surface sediments of Chaohu Lake is 4.2¦Ìmol&bullg-1 and 2.31¦Ìmol&bullg-1, respectively. The maximum of [AVS] appears on spot 5 (14.845¦Ìmol&bullg-1) in summer while the minimum appears on spot 9 (0.13¦Ìmol&bullg-1) in winter. (b) In spot 5 which near the estuary of Yuxi River, three-year average of [SEM] was the maximum (5.81¦Ìmol&bullg-1), and the minimum of [¦²SEM] (0.07¦Ìmol&bullg-1) appears on spot 8 which locates in the middle of Chaohu Lake. In spot 13 the [¦²SEM]-[AVS]=3.2>2 and [¦²SEM]/[AVS]=4.45>2.34 indicate that heavy metal contaminants from Hefei city have threatened the biosafety of Chaohu Lake. (c) The spatial autocorrelation of SEMCd is weak, which indicates that spatial distribution of SEMCd is determined by anthropogenic factors rather than sediments' own attribute. Chaohu Lake has been heavily polluted by Cd from no-point source and electronic electroplating industry. © (2013) Trans Tech Publications, Switzerland. Number of references: 27 Main heading: Lakes Controlled terms: Electroplating shops - Environmental engineering - Heavy metals - Materials handling - Spatial distribution - Spatial variables measurement - Surficial sediments - Toxicity Uncontrolled terms: Acid volatile sulfides - Anthropogenic factors - Biological toxicity - Distribution characteristics - Electroplating industry - Metal contaminants - Simultaneously extracted metals - Spatial autocorrelations Classification code: 943.2 Mechanical Variables Measurements - 921 Mathematics - 804 Chemical Products Generally - 691 Bulk Handling and Unit Loads - 531 Metallurgy and Metallography - 483 Soil Mechanics and Foundations - 454 Environmental Engineering - 407 Maritime and Port Structures; Rivers and Other Waterways - 402.1 Industrial and Agricultural Buildings DOI: 10.4028/www.scientific.net/AMR.779-780.1213 Database: Compendex Compilation and indexing terms, © 2013 Elsevier Inc. |
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