Metal accumulation by submerged macrophytes in eutrophic lakes at the watershed scale

• Published in: Environmental science and pollution research international Vol. 20; no. 10; pp. 6999 - 7008
• Main Authors: Xing, Wei, Wu, Haoping, Hao, Beibei, Liu, Guihua
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.10.2013; Springer Nature B.V
• Subjects: Alismatales; Alismatales - chemistry; Aluminum; analysis; Aquatic Organisms; Aquatic Organisms - chemistry; Aquatic plants; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Bioaccumulation; Cellulose acetate; Ceratophyllum demersum; chemistry; China; Contaminated sediments; Correlation; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Eutrophic environments; Eutrophic lakes; Eutrophication; Freshwater; Geologic Sediments; Geologic Sediments - chemistry; Heavy metal content; Heavy metals; Humans; Invertebrates; Laboratories; Lakes; Lakes - chemistry; Macrophytes; Magnesium; Magnoliopsida; Magnoliopsida - chemistry; Metal concentrations; Metals; Metals - analysis; Najas marina; Plants; Plants - chemistry; Processes and Environmental Quality in the Yangtze River System; Sediments; statistics & numerical data; Strontium; Studies; Submerged; Titanium; Waste Water Technology; Water Management; Water Pollutants, Chemical; Water Pollutants, Chemical - analysis; Water pollution; Water Pollution Control; Water quality; Water Supply; Water Supply - statistics & numerical data; Watersheds; Yangtze River; China; Yangtze River; Eutrophic lakes; Metals; Submerged macrophytes; Accumulation; The middle and lower reaches of the Yangtze River
• DOI: 10.1007/s11356-013-1854-z
• ISSN: 0944-1344; 1614-7499

Metal concentrations (Al, Ba, Ca, K, Li, Mg, Na, Se, Sr and Ti) in submerged macrophytes and corresponding water and sediments were studied in 24 eutrophic lakes along the middle and lower reaches of the Yangtze River (China). Results showed that these eutrophic lakes have high metal concentrations in both water and sediments because of human activities. Average concentrations of Al and Na in tissues of submerged macrophytes were very high in sampled eutrophic lakes. By comparison, Ceratophyllum demersum and Najas marina accumulated more metals (e.g. Ba, Ca, K, Mg, Na, Sr and Ti). Strong positive correlations were found between metal concentrations in tissues of submerged macrophytes, probably because of co-accumulation of metals. The concentrations of Li, Mg, Na and Sr in tissues of submerged macrophytes significantly correlated with their corresponding water values, but not sediment values.