Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Đặc điểm lịch sử của ô nhiễm và rủi ro của kim loại nặng ở hồ Weishan, Trung Quốc
Tóm tắt
Kết hợp với phân tích niên đại 210Pb và 137Cs, nồng độ lịch sử và rủi ro của As, Cd, Cr, Cu, Hg, Ni, Pb và Zn trong trầm tích lõi của hồ Weishan đã được xác định. Nồng độ ô nhiễm, hệ số giàu có, chỉ số tích lũy địa chất và chỉ số rủi ro sinh thái của các kim loại này cùng với tỷ lệ C/N chỉ ra rằng các nguồn thiên nhiên chiếm ưu thế cho đến đầu những năm 1900. Kể từ cuối những năm 1970, rủi ro do các kim loại này gây ra đã tăng lên đáng kể. Cu và Hg có thể gây ra những tác động sinh học bất lợi. Sự gia tăng xói mòn đất và xả nước thải trong lưu vực đã thúc đẩy việc đưa vào và tích lũy các kim loại này trong hồ. Ngành công nghiệp than và dầu mỏ trong lưu vực đã dẫn đến việc tích lũy nhiều hơn Hg, Cd và Cu trong hồ.
Từ khóa
#ô nhiễm kim loại nặng #hồ Weishan #rủi ro sinh thái #trầm tích #phân tích niên đạiTài liệu tham khảo
Alves RIS, Sampaio CF, Nadal M, Schuhmacher M, Domingo JL, Segura-Munoz SI (2014) Metal concentrations in surface water and sediments from Pardo River, Brazil: Human health risks. Envrion Res 133:149–155
Bacardit M, Krachler M, Camarero L (2012) Whole-catchment inventories of trace metals in soils and sediments in mountain lake catchments in the central pyrenees: apportioning the anthropogenic and natural contributions. Geochim Cosmochim Acta 82:52–67
Cao XZ, Shao Y, Deng WJ, Wang H, Wang SL (2014) Spatial distribution and potential ecologic risk assessment of heavy metals in the sediments of the Nansi Lake in China. Environ Monit Assess 186:8845–8856
Hakanson L (1980) An ecological risk index for aquatic pollution control: a sedimentological approach. Water Res 14(1):975–1000
Hansen AM (2012) Lake sediment cores as indicators of historical metal(loid) accumulation—a case study in Mexico. Appl Geochem 27:1745–1752
Hao LB, Sun LJ, Zhao YY, Lu JL (2013) Sedimentary records of evolution of heavy metals in Songhua Lake, Northeast China. Clean Soil Air Water 41(10):1010–1017
Hou DK, He J, Lu CW, Ren LM, Fan QY, Wang JH, Xie ZL (2013) Distribution characteristics and potential ecological risk assessment of heavy metals (Cu, Pb, Zn, Cd) in water and sediments from Lake Dalinouer, China. Ecotox Environ Safe 93:135–144
Kendall C, Silva SR, Kelly VJ (2001) Carbon and nitrogen isotopic compositions of particulate organic matter in four large river systems across the United States. Hydrol Process 15:1301–1346
Li S, Zhang ZL (2012) Spatial distribution and pollution assessment of heavy metals in surface sediments of Nansihu Lake. Water Resour Protect 28: 6–11. (In Chinese)
Liu L, Zhang ZL (2013) Spatial distribution, sources and pollution assessment of heavy metals in the surface sediments of Nansihu Lake. J Hydroecol 34:7–15. (In Chinese)
Liu GQ, Zhang G, Li XD, Li J, Peng XZ, Qi SH (2005) Sedimentary record of polycyclic aromatic hydrocarbons in a sediment core from the Pearl River Estuary, South China. Mar Pollut Bull 51:912–921
Lv JS, Zhang ZL, Li S, Liu Y, Sun YY, Dai B (2014) Assessing spatial distribution, sources, and potential ecological risk of heavy metals in surface sediments of the Nansi Lake, Eastern China. J Radioanal Nucl Chem 299:1671–1681
Ma L, Wu JL, Abuduwili JLL (2013) Geochemical evidence of the anthropogenic alteration of element composition in lacustrine sediments from Wuliangsu Lake, north China. Quatern Int 306:107–113
Oldfield F, Appleby PG (1984) Empirical testing of 210Pb-dating models for lake sediments. In: Haworth EY, Lund J.W.G. (eds), Lake sediments and environmental history. Leicester University, Leicester pp. 93–124
Pekey H (2006) Heavy metals pollution assessment in sediments of the Izmit Bay, Turkey. Environ Monit Assess 123:219–231
Piazza R, Ruiz-Fernández AC, Frignani M, Vecchiato, Bellucci LG, Gambaro A, Pérez-Bernal LH, Páez-Osunaa F (2009) Historical PCB fluxes in the Mexico City Metropolitan Zone as evidenced by a sedimentary record from the Espejo de los Lirios lake. Chemosphere 75:1252–1258
Qiao S, Jiang J, Xiang W, Tang J (2005) Distribution of heavy metals in sediments in lakes in Wuhan with assessment on their potential ecological risk. Resour Environ Yangtze Basin 14: 353–357. (In Chinese)
Ra K, Bang JH, Lee JM, Kim KT, Kim ES (2011) The extent and historical trend of metal pollution recorded in core sediments from the artificial Lake Shihwa, Korea. Mar Pollut Bull 62:1814–1821
Reid M, Spencer K (2009) Use of principal components analysis (PCA) on estuarine sediment datasets: the effect of data pre-treatment. Environ Pollut 157:2275–2281
Ruiz-Fernández AC, Hillaire-Marcel C, Páez-Osuna F (2007) 210Pb chronology and trace metal geochemistry at Los Tuxtlas, Mexico, as evidenced by a sedimentary record from the Lago Verde crater lake. Quatern Res 67:181–192
Shao B, Jia YF, Ji XM (2013) The research on the coordinate development between economy and water environment in Nansi Lake watershed. Shanddong University Press, Jina, pp. 6–60. (In Chinese)
Sheykhi V, Moore F (2013) Evaluation of potentially toxic metals pollution in the sediments of the Kor river, southwest Iran. Environ Monit Assess 185:3219–3232
Sinex SA, Wright DA (1988) Distribution of trace metals in the sediments and biota of Chesapeake Bay. Mar Pollut Bull 19:425–431
The State Environmental Protection Agency (SEPA) of China. (1990) China’s soil element background values. China Environmental Science Press, Beijing.
Wu ZH, Mu JB, Xie G, Lu CG, Zhu J (2010) Analysis of water environment quality variation trends in Nansi Lake and its joined rivers. Res Environ Sci 23:1167–1173. (In Chinses)
Yang LY, Wang LF, Wang YQ, Zhang W (2015) Geochemical speciation and pollution assessment of heavy metals in surface sediments from Nansi Lake, China. Environ Monit Assess 187:261
Yu T, Zhang Y, Meng W, Hu XN (2012) Characterization of heavy metals in water and sediments in Taihu Lake, China. Environ Monit Assess 184:4367–4382
Zhang Z, Shen J, Liu E, Sun Q, Jiang L (2003) Formation and water environmental evaluation of the Nansihu Lake. J Geog Sci 13:241–249. (In Chinses)
Zhang ZL, Xin LJ, Liang CL (2007) The analysis of hydrological characteristics and processes of ecosystem in Lake Nansi during the past 50 years. Geographical Res 26: 957–966. (In Chinses)
