Spatial-temporal variation of water quality and pollutant source analysis in rivers along Liaodong Bay

Wu Guanghong; Qiu Mengxuan; Li Jianling; Luo Wei

doi:10.12284/hyxb2023110

Volume 45 Issue 9

Sep. 2023

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Wu Guanghong，Qiu Mengxuan，Li Jianling, et al. Spatial-temporal variation of water quality and pollutant source analysis in rivers along Liaodong Bay[J]. Haiyang Xuebao，2023, 45(9)：177–188 doi: 10.12284/hyxb2023110

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Spatial-temporal variation of water quality and pollutant source analysis in rivers along Liaodong Bay

doi: 10.12284/hyxb2023110

1.
Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China
2.
Laboratory of Solid Waste Treatment and Recycling, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

Received Date: 2023-01-16
Rev Recd Date: 2023-04-13

Available Online: 2023-08-29

Publish Date: 2023-09-30

Abstract

Abstract

Based on the dataset of 120 water quality monitoring sites (including 16 coastal sites) in rivers along Liaodong Bay, the principal component analysis-multiple linear regression (PCA-MLR) model was used to study the pollution characteristics and flux of organic matter, nutrients and heavy metals, and analyze their possible sources. The pollutants exceeding the first grade of Environmental Quality Standards for Surface Water were COD_Mn, AN concentration. TP concentration and TN concentration, and other water quality parameters met the standard. The TN/TP ratios were high and seriously deviated from the Redfield ratio. The input of high N and low P load from terrestrial sources was the main factor causing the increase of TN/TP in Bohai Sea. DO concentration, EC, AN concentration and TN concentration in non-flood season increased significantly than in flood season, while pH, turbidity, COD_Mn and TP concentration in non-flood season decreased significantly than in flood season. The concentrations of organic matter and nutrients in estuaries were affected by factors such as the agricultural areas that rivers flowed, while the concentrations of heavy metals were related to the distribution of industrial enterprises in the region. The annual fluxes of TN, TP, COD, AN and petroleum pollutant into Liaodong Bay were 3.63 × 10⁴ t, 1 608.5 t, 14.8 ×10⁴ t, 3 086.6 t and 221.9 t, respectively, and the fluxes of Hg, Cd, Pb, As and Cr⁶⁺ were 0.264 t, 0.253 t, 1.978 t, 20.434 t and 31.651 t, respectively. According to their contribution, the main pollution sources were domestic sewage and industrial wastewater, sources caused by hydrological factors (hydrodynamic conditions, etc.), water-gas interface pollutants exchange and secondary sources, non-point sources of farmland runoff and transportation.
- water quality,
- sources analysis,
- PCA-MLR model,
- flux,
- Liaodong Bay

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References(22)

References

[1]	祝雅轩, 裴绍峰, 张海波, 等. 莱州湾营养盐和富营养化特征与研究进展[J]. 海洋地质前沿, 2019, 35(4): 1−9. Zhu Yaxuan, Pei Shaofeng, Zhang Haibo, et al. Characteristics and research progress of nutrients and eutrophication in Laizhou Bay, China[J]. Marine Geology Frontiers, 2019, 35(4): 1−9.
[2]	Wu Guanghong, Qin Renjie, Luo Wei. Polycyclic aromatic hydrocarbons (PAHs) in the Bohai Sea: a review of their distribution, sources, and risks[J]. Integrated Environmental Assessment and Management, 2022, 18(6): 1705−1721. doi: 10.1002/ieam.4600
[3]	Sun Conghui, Wei Qi, Ma Lixia, et al. Trace metal pollution and carbon and nitrogen isotope tracing through the Yongdingxin River Estuary in Bohai Bay, northern China[J]. Marine Pollution Bulletin, 2017, 115(1/2): 451−458.
[4]	吴光红, 李万庆, 郑洪起. 渤海天津近岸海域水污染特征分析[J]. 海洋学报, 2007, 29(2): 143−149. Wu Guanghong, Li Wanqing, Zheng Hongqi. Water pollution characteristics in Tianjin sea area of the Chinese Bohai Bay[J]. Haiyang Xuebao, 2007, 29(2): 143−149.
[5]	吴念, 刘素美, 张桂玲. 黄河下游调水调沙与暴雨事件对营养盐输出通量的影响[J]. 海洋学报, 2017, 39(6): 114−128. Wu Nian, Liu Sumei, Zhang Guiling. Impacts of water-sediment regulation and rainstorm events on nutrient transports in the lower Huanghe River[J]. Haiyang Xuebao, 2017, 39(6): 114−128.
[6]	陈月琴, 罗维, 孙聪慧, 等. 秦皇岛近岸海域潮间带砂质沉积物中微塑料和重金属污染特征[J]. 海洋学报, 2020, 42(4): 113−121. Chen Yueqin, Luo Wei, Sun Conghui, et al. Pollution characteristics of micro plastics and heavy metals in the intertidal zone sandy sediments of the offshore area of Qinhuangdao[J]. Haiyang Xuebao, 2020, 42(4): 113−121.
[7]	松辽水利委员会. 2021年松辽流域水资源公报[R]. 沈阳: 松辽水利委员会, 2022: 1-6. Songliao River Water Resources Commission. Bulletin of water resources in Songliao Basin in 2021[R]. Shenyang: Songliao River Water Resources Commission, 2022: 1−6.
[8]	Haji Gholizadeh M, Melesse A M, Reddi L. Water quality assessment and apportionment of pollution sources using APCS-MLR and PMF receptor modeling techniques in three major rivers of South Florida[J]. Science of the Total Environment, 2016, 566−567: 1552−1567. doi: 10.1016/j.scitotenv.2016.06.046
[9]	中华人民共和国生态环境部. 2021年中国海洋生态环境状况公报[R/OL]. [2023−01−06]. https://english.mee.gov.cn/Resources/Reports/. Ministry of Ecology and Environment the People’s Republic of China. Bulletin of marine ecology and environment status of China in 2021[R/OL]. [2023−01−06]. https://english.mee.gov.cn/Resources/Reports/.
[10]	杨建斌, 姚鹏, 张晓华. 南海北部神狐海域营养盐浓度与结构的分布特征及影响因素[J]. 海洋学报, 2020, 42(10): 132−143. Yang Jianbin, Yao Peng, Zhang Xiaohua. The distribution and controlling factors of the concentration and structure of dissolved inorganic nutrients in the Shenhu Area, northern South China Sea[J]. Haiyang Xuebao, 2020, 42(10): 132−143.
[11]	杨永利. 辽河流域河流水质综合评价[J]. 水资源开发与管理, 2021(1): 28−32, 56. Yang Yongli. Comprehensive evaluation of river water quality in Liaohe River Basin[J]. Water Resources Development and Management, 2021(1): 28−32, 56.
[12]	刘彦龙, 郑易安. 黄河干流水质评价与时空变化分析[J]. 环境科学, 2022, 43(3): 1332−1345. Liu Yanlong, Zheng Yian. Water quality assessment and spatial-temporal variation analysis in Yellow River Basin[J]. Environmental Science, 2022, 43(3): 1332−1345.
[13]	赵紫涵, 宋贵生, 赵亮. 秦皇岛外海夏季溶解氧与pH的变化特征分析[J]. 海洋学报, 2020, 42(10): 144−154. Zhao Zihan, Song Guisheng, Zhao Liang. Characteristics of dissolved oxygen and pH variations in summer off the Qinhuangdao[J]. Haiyang Xuebao, 2020, 42(10): 144−154.
[14]	杨凡, 杨正健, 纪道斌, 等. 三峡库区不同河段支流丰水期叶绿素a和营养盐的空间分布特征[J]. 环境科学, 2019, 40(11): 4944−4952. Yang Fan, Yang Zhengjian, Ji Daobin, et al. Spatial distribution characteristics of chlorophyll-a and nutrient salts in tributaries of different river sections in the Three Gorges Reservoir area during the flood season[J]. Environmental Science, 2019, 40(11): 4944−4952.
[15]	毕业亮, 王华彩, 夏兵, 等. 雨源型城市河流水污染特征及水质联合评价: 以深圳龙岗河为例[J]. 环境科学, 2022, 43(2): 782−794. Bi Yeliang, Wang Huacai, Xia Bing, et al. Pollution characterization and comprehensive water quality assessment of rain-source river: a case study of the Longgang River in Shenzhen[J]. Environmental Science, 2022, 43(2): 782−794.
[16]	冯爱萍, 王雪蕾, 徐逸, 等. 基于DPeRS模型的海河流域面源污染潜在风险评估[J]. 环境科学, 2020, 41(10): 4555−4563. doi: 10.13227/j.hjkx.201912077 Feng Aiping, Wang Xuelei, Xu Yi, et al. Assessment of potential risk of diffuse pollution in Haihe River Basin based using DPeRS model[J]. Environmental Science, 2020, 41(10): 4555−4563. doi: 10.13227/j.hjkx.201912077
[17]	韩谞, 潘保柱, 陈越, 等. 黄河水环境特征与氮磷负荷时空分布[J]. 环境科学, 2021, 42(12): 5786−5795. Han Xu, Pan Baozhu, Chen Yue, et al. Characteristics of water environment and spatial-temporal distribution of nitrogen and phosphorus load in the Yellow River[J]. Environmental Science, 2021, 42(12): 5786−5795.
[18]	Lü Xiaoqian, Xu Hao, Zhao Sheng, et al. The green tide in Yingkou, China in summer 2021 was caused by a subtropical alga—Ulva meridionalis (Ulvophyceae, Chlorophyta)[J]. Journal of Oceanology and Limnology, 2022, 40(6): 2354−2363. doi: 10.1007/s00343-022-2014-4
[19]	Chen Yueqin, Song Qiuyang, Pan Ling, et al. Trace metals, organic carbon and nutrients in the Beidagang Wetland Nature Reserve, northern China[J]. PLoS One, 2018, 13(10): e0204812. doi: 10.1371/journal.pone.0204812
[20]	Chen Quanrui, Fan Jingfeng, Su Jie, et al. Spatial distribution characteristics of bacterial community structure and gene abundance in sediments of the Bohai Sea[J]. Acta Oceanologica Sinica, 2020, 39(2): 69−78. doi: 10.1007/s13131-020-1554-8
[21]	王菊英, 郑楠, 马德毅. 近海生态系统的人为营养盐输入及其控制对策浅析[J]. 海洋学报, 2020, 42(6): 1−8. Wang Juying, Zheng Nan, Ma Deyi. Anthropogenic inputs of nutrients to coastal ecosystem and mitigation actions[J]. Haiyang Xuebao, 2020, 42(6): 1−8.
[22]	嵇晓燕, 侯欢欢, 王姗姗, 等. 近年全国地表水水质变化特征[J]. 环境科学, 2022, 43(10): 4419−4429. Ji Xiaoyan, Hou Huanhuan, Wang Shanshan, et al. Variation characteristics of surface water quality in China in recent years[J]. Environmental Science, 2022, 43(10): 4419−4429.