Kuitun area in Xinjiang is the firstly reported endemic arsenic poisoning area in mainland China. Based on 3D-EEM and parallel factor analysis (PARAFAC) for high arsenic groundwater samples collected from Kuitun Xinjiang, the role of arsenic migration and transformation dissolved organic matter (DOM) characteristics and sources in the area was explored. The results indicated that the arsenic content of groundwater was in the range of 1.30~400.68μg/L, with an average of 61.18μg/L, and high arsenic groundwater accounted for 68.99% among all the samples. Three fluorescence components in the groundwater were identified as DOM including humic-like components C1 (260(325)nm/425nm),the microbial tryptophan C2 (275nm/350nm), and a humic-like (microbial reduced quinones) component C3 (260(375)nm/475nm), accounting for 2.78%, 18.74% and 54.12% respectively. The DOM fluorescence index of the water in Kuitun area was between 1.2~1.52, with a mean of 1.36, the DOM was mainly generated from terrestrial sources. The groundwater is weak alkaline-reduced environment. The release process of arsenic in groundwater is mainly the reduction of iron oxide minerals and desulfurization acid. DOM in water is involved in the reduction reaction process of iron and sulfate. The microbial tryptophan C2 acts as an electron donor during microbial respiration. The microbial reduced quinones C3 acts as an electron shuttle in the process of electron flight, enhancing the arsenic migration properties from aquifer deposits to groundwater.
王翔, 罗艳丽, 邓雯文, 戴志鹏. 新疆奎屯地区高砷地下水DOM三维荧光特征[J]. 中国环境科学, 2020, 40(11): 4974-4981.
WANG Xiang, LUO Yan-li, DENG Wen-wen, DAI Zhi-peng. The 3D-EEM characteristics of DOM in high arsenic groundwater of Kuitun, Xinjiang. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(11): 4974-4981.
Wang Y, Pi K, Fendorf S, et al. Sedimentogenesis and hydrobiogeochemistry of high arsenic Late Pleistocene Hol-ocene aquifer systems[J]. Earth-Science Review, 2017,189:79-98.
[2]
Ameer S S, Engström K, Hossain M B, et al. Arsenic exposure from drinking water is associated with decreased gene expression and increased DNA methylation in peripheral blood[J]. Toxicology and Applied Pharmacology, 2017,321:57-66.
[3]
张迪.原位高砷地下水环境下铁氧化物矿物吸附态砷的释放特征及机理[D]. 北京:中国地质大学, 2018. Zhang D. In-situ mobilization and transformation of iron oxides-adsorbed arsenate in high arsenic groundwater[D]. Beijing:China University of Geosciences, 2018.
[4]
Fendorf S, Michael H A, Van Gree A. Spatial and temporal variations of groundwater arsenic in South and Sontheast Asia[J]. Science, 2010,328(5982):1123-1127.
[5]
Harvey C F, Swartz C H, Badruzzaman B, et al. Arsenic mobility and groundwater extraction in Bangladesh[J]. Science, 2002,298(5598):1602-1606.
[6]
梁梦钰,郭华明,李晓萌,等.贵德盆地三河流域高砷地下水中溶解性有机物三维荧光特性及其指示意义[J]. 地学前缘, 2019,26(3):243-254. Liang M Y, Guo H M, Li X M, et al. Excitation-emission matrix spectroscopic characteristics of dissolved organic matters and the significance in high arsenic groundwater research in the Guide Basin, Chain[J]. Earth Science Frontiers, 2019,26(3):243-254.
[7]
Kulkarai H V, Mladenov N, Johannesson K H, et al. Contrasting dissolved organic matter quality in groundwater in Holocene and Pleistocene aquifers and implications for influencing arsenic mobility[J]. Applied Geochemistry, 2017,77:194-205.
[8]
聂明华,刘慧慧,熊小英,等.南昌市湖泊水体中不同粒径胶体的三维荧光光谱特征研究[J]. 环境科学学报, 2018,38(5):1929-1938. Nie M H, Liu H H, Xiong X Y, et al. Three fluorescence characterization of fractionated colloids in the lakes of Nanchang City[J]. Acta Scientiae Circumstantiae, 2018,38(5):1929-1938.
[9]
Yan C X, Nie M H, Lead J R, et al. Application of a muli-method approach in characterization of natural aquatic colloids from different sources along Huangpu River in Shanghai, China[J]. Science of the Total Environment, 2016,554:228-236.
[10]
McKnight D M, Boyer E W, Westerhoff P K, et al. Spectrofluorometric Characterization of Dissolved Organic Matter for Indication of Precursor Organic Material and Aromaticity[J]. Limnology and Oceanography, 2001,46(1):38-48.
[11]
孟永霞,程艳,李琳,等.西北内陆小流域水体DOM三维荧光光谱特征[J]. 环境科学与技术, 2019,42(9):134-141. Meng Y X, Cheng Y, Li L, et al. Three-dimensional fluorescence spectral characteristics of DOM in waters of inland small watersheds in Northwest China[J]. Environmental Science & Technology, 2019,42(9):134-141.
[12]
黄爽兵,王焰新,刘昌蓉,等.含水层中砷活化迁移的水化学与DOM三维荧光证据[J]. 地球科学(中国地质大学学报), 2013,38(5):1091-1098. Huang Shuang-bing, Wang Yan-xin, Liu Chang-rong, et al. Hydrochemical and fluorescent spectroscopic evidences of arsenic mobilization in groundwater[J]. Earth Science-Journal of China University of Geosciences, 2013,38(5):1091-1098.
[13]
GB/T 5749-2006我国生活饮用水卫生标准[S].
[14]
Coble P G. Characterization of marine and terrestrial DOM in seawater using excitation-emission matrix spectroscopy[J]. Marine Chemistry, 1996,51(4):325-346.
[15]
刘丽贞,黄琪,吴永明,等.鄱阳湖CDOM三维荧光光谱的平行因子分析[J]. 中国环境科学, 2018,38(1):293-302. Liu L Z, Huang Q, Wu Y M, et al. Fluorescent characteristics of CDOM in Poyang Lake analyzed by three-dimensional excitation-emission matrix spectroscopy and parallel factor analysis.[J]. China Environmental Science, 2018,38(1):293-302.
[16]
Stedmon C A, Markager S. Resolving the variability in dissolved catchment using PARAFAC analysis[J]. Limnology and Oceanography, 2005,50(2):686-697.
[17]
Bridgeman J, Bieroza M, Baker A. The application of fluorescence spectroscopy to organic matter characterisation in drinking water treatment[J]. Reviews in Environmental Science and Bio-Technology, 2011,10(3):277-290.
[18]
Cammack W, Kalff J, Prairie Y T, et al. Fluorescent Dissolved Organic Matter in Lakes:Relationships with Heterotrophic Metabolism[J]. Limnology and Oceanography, 2004,49(6):2034-2045.
[19]
Elliott S, Lead J, Baker A. Thermal Quenching of Fluorescence of Freshwater, Planktonic Bacteria[J]. Analytica Chimica Acta, 2006, 564(2):219-225.
[20]
梁梦琦,邵美玲,曹昌丽,等.城郊与城镇河流中溶解性有机质与重金属的相关性[J]. 环境科学, 2018,39(5):2096-2103. Liang M Q, Shao M L, Cao C L, et al. Characteristics of dissolved organic matter (DOM) and relationship withdissolved heavy metals in a periurban and an urban river[J]. Environmental Science, 2018, 39(5):2096-2103.
[21]
卢松,江韬,张进忠,等.两个水库型湖泊中溶解性有机质三维荧光特征差异[J]. 中国环境科学, 2015,35(2):516-523. Lu S, Jiang T, Zhang J Z, et al. Three dimensional fluorescence characteristic differences of dissolved organic matter (DOM) from two typical reservoirs[J]. China Environmental Science, 2015,35(2):516-523.
[22]
李帅东,张明礼,杨浩,等.昆明松华坝库区表层土壤溶解性有机质(DOM)的光谱特性[J]. 光谱学与光谱分析, 2017,37(4):1183-1188. Li S D, Zhang M L. Yang H, et al. Spectroscopic characteristics of dissolved organic matter form top soils on SongHuaba reservoir in Kunming[J]. Spectroscopy and Spectral Analysis, 2017,37(4):1183-1188.
[23]
秦纪洪,王姝,刘琛.海拔梯度上川西高山土壤溶解性有机质(DOM)光谱特征[J]. 中国环境科学, 2019,39(10):4321-4328. Qin J H, Wang S, Liu C, et al. Spectroscopic characteristics of soil dissolved organic matter (DOM) along the altitudinal gradient of alpine in western Sichuan[J]. China Environmental Science, 2019, 39(10):4321-4328.
[24]
Guo H M, Li Y, Zhao K. Arsenate removal from aqueous solution using synthetic siderite[J]. Journal of Hazardous Matcrials, 2010,176(1/2/3):174-180.
[25]
Xie X, Wang Y, Su C. Hydrochemical and Sediment Biomarker Evidence of the Impact of Organic Matter Biodegradation on Arsenic Mobilization in Shallow Aquifers of Datong Basin, China[J]. Water, Air, & Soil Pollut., 2012,223(2):483-498.
[26]
黄爽兵,Even E,王焰新.高砷含水层沉积物矿物学特征及砷的活化[J]. 矿物岩石, 2012,32(4):7-11. Huang S B, E. Emilie, Wang Y X. Minerlogicai characteristics of sediments and arsenic mobilization in the aquifer, Jinhan plain[J]. Journal of Mineralogy and Petrology, 2012,32(4):7-11.
[27]
Huang, S, Wang, Y X, Ma, T. et al. Linking groundwater dissolved organic matter to sedimentary organic matter from a fluvio-lacustrine aquifer at Jianghan Plain, China by EEM-PARAFAC and hydrochemical analyses[J]. Science of the Total Environment, 2015, 529:131-139.
[28]
Lawati W M A, Rizoulis A, Eiche E, et al. Characterisation of organic matter and microbial communities in contrasting arsenic-rich holocene and arsenic-poor pleistocene aquifers, Red River Delta, Vietnam[J]. Applied Geochemistry, 2012,27(1):315-325.
[29]
鲁宗杰,邓娅敏,杜尧.江汉平原高砷地下水中DOM三维荧光特征及其指示意义[J]. 地球科学, 2017,42(5):771-782. Lu Z J, Deng Y M, Du Y. The EEMs characteristics of dissolved organic matter and its implication in high arsenic groundwater of Jianghan plain[J]. Earth Science, 2017,42(5):771-782.
[30]
祝鹏,华祖林,李惠民.湖泊水体三维荧光光谱的PARAFAC法在污染源解析中的应用[J]. 光谱学与光谱分析, 2012,32(12):3290-3294. Zhu P, Hua Z L, Li H M. Application of parallel factor analysis method of the three-dimensional fluorescence spectrain source apportionment of pollutionsin water environment[J]. Spectroscopy and Spectral Analysis, 2012,32(12):3290-3294.
