Phosphorus Speciation and Vertical Variation in Sediments from Lake Baihua

Autor:	Ji Wei Hu, Ling Yun Li, Xian Fei Huang, Zhi Bin Li, Yi Miao Lin, Miao Jia
Rok vydání:	2014
Předmět:	Phosphorus media_common.quotation_subject Environmental engineering chemistry.chemical_element General Medicine Bioavailability Speciation chemistry Environmental chemistry Sediment contamination Environmental science Total phosphorus Ecological risk Inorganic phosphorus media_common
Zdroj:	Applied Mechanics and Materials. 665:399-403
ISSN:	1662-7482
DOI:	10.4028/www.scientific.net/amm.665.399
Popis:	This paper reports a study on vertical distribution characteristics of phosphorus speciation in samples collected at four sites from Baihua Lake, based on the Standards, Measurements and Testing (SMT) programme. In this study, the total phosphorus (TP) concentrations of these sediments samples varied from 944.86 to 2591.56 mg/kg and inorganic phosphorus (IP) was the main phosphorus fraction. For this heavily contaminated sediment, the IP mainly consisted of the Fe/Al-P. The vertical variation of the phosphorus had a tendency to decrease with the depth at sites JYS and YPZ. Since the concentrations of the TP in sediments were high and the phosphorus release potential and bioavailability were significant, the lake is still facing an ecological risk.
Databáze:	OpenAIRE
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