Analysis and evaluation of heavy metal and eutrophication characteristics in the surface seawater of Fangchenggang Sea in Guangxi
PANG Guotao1,2,3, LI Wei1,2,3, YANG Yuanzhen1,2, ZHANG Xiaolei1,2,4, LUO Junsheng1,2, MA Ruqiang1,2
1. Yantai Center of Coastal Zone Geological Survey, China Geological Survey, Shandong Yantai 264000, China;
2. Ministry of Natural Resources Observation and Research Station of Land-Sea Interaction Field in the Yellow River Estuary, Shandong Yantai 264000, China;
3. Key Laboratory of Natural Resource Coupling Process and Effects, Beijing 100055, China;
4. College of Marine Earth Sciences, Ocean University of China, Shandong Qingdao 266100, China
Abstract：The research on heavy metals and nutrients in seawater is of great significance to the understanding of the balance of marine ecosystems, the assessing of the quality of marine environment, and the formulating of the protection strategies. In order to study the water quality of the surface seawater in Fangchenggang sea, the authors carried out an investigation in Fangchenggang sea in September 2021 to analyze the Dissolved Oxygen (DO), Chemical Oxygen Demand (COD), Dissolved Inorganic Nitrogen (DIN), Dissolved Inorganic Phosphorus (DIP), and 5 heavy metal contents (Cu,Pb,Cd,Zn,As) of the seawater. The seawater quality was evaluated using single factor index, water quality index, organic pollution index, and eutrophication index. The results show that except for DIN and DIP, all the other factors in the surface seawater of Fangchenggang sea are superior to Class II seawater quality standard. The single factor evaluation show that the main exceeding factors were DIP and DIN, with the exceeding rates of 70% and 98%, respectively. The comprehensive pollution index method for water quality evaluation indicates that the entire sea is in mild or above pollution. The evaluation results of heavy metal risk entropy show that the main risk elements in Fangchenggang sea are Cu, Cd, and Zn. The whole sea area is in organic pollution state based on eutrophication index and organic pollution index, and 55% of the area is in eutrophic state, mostly concentrated in the southern waters of Qisha Peninsula and Fangchenggang waterway. Further analysis indicates that DIN and DIP are mainly affected by the marine aquaculture industry and coastal sewage discharge. The main sources of the five heavy metals are marine transportation, marine aquaculture and industrial wastewater discharge, mixed input source, with the relative contribution rates of 18%, 8%, and 74%, respectively. This could provide some scientific basis for the sustainable development, marine environmental protection, and governance of Fangchenggang sea.
庞国涛, 李伟, 杨源祯, 张晓磊, 罗钧升, 马汝强. 广西防城港海域表层海水重金属和富营养化特征分析与评价[J]. 中国地质调查, 2024, 11(4): 82-91.
PANG Guotao, LI Wei, YANG Yuanzhen, ZHANG Xiaolei, LUO Junsheng, MA Ruqiang. Analysis and evaluation of heavy metal and eutrophication characteristics in the surface seawater of Fangchenggang Sea in Guangxi. , 2024, 11(4): 82-91.
[1] Chen Y.Analysis on the evolution trend of seawater quality and eutrophication in Tianjin Hangu agricultural and fishery area from 2010 to 2019[J].E3S Web of Conferences,2021,245:02024.
[2] 朱志雄,骆丽珍,陈石泉,等.海南小海海水富营养化和重金属特征分析与评价[J].海洋湖沼通报,2020(5):131-138.
Zhu Z X,Luo L Z,Chen S Q,et al.Analysis and evaluation of eutrophication of seawater and characteristics of heavy metal in Xiaohai,Hainan[J].Transactions of Oceanology and Limnology,2020(5):131-138.
[3] Ding X G,Ye S Y,Yuan H M,et al.Spatial distribution and ecological risk assessment of heavy metals in coastal surface sediments in the Hebei Province offshore area,Bohai Sea,China[J].Marine Pollution Bulletin,2018,131:655-661.
[4] Guo G H,Wu F C,Xie F Z,et al.Spatial distribution and pollution assessment of heavy metals in urban soils from southwest China[J].Journal of Environmental Sciences,2012,24(3):410-418.
[5] 杨静,张仁铎,赵庄明,等.近25年广西北部湾海域营养盐时空分布特征[J].生态环境学报,2015,24(9):1493-1498.
Yang J,Zhang R D,Zhao Z M,et al.Temporal and spatial distribution characteristics of nutrients in the coastal seawater of Guangxi Beibu gulf during the past 25 years[J].Ecology and Environmental Sciences,2015,24(9):1493-1498.
[6] 阎琨,庞国涛,邢新丽,等.广西企沙半岛近岸表层海水重金属分布、来源及生态风险评价[J].海洋环境科学,2023,42(1):89-96.
Yan K,Pang G T,Xing X L,et al.Distribution,source analysis and ecological risk assessment of heavy metals in surface seawater near Qisha Peninsula,Guangxi[J].Marine Environmental Science,2023,42(1):89-96.
[7] 赖俊翔,陈宪云,柯珂,等.广西防城港市近岸海域营养盐分布及富营养化研究[J].海洋技术,2013,32(3):63-69,91.
Lai J X,Chen X Y,Ke K,et al.Study on nutrients distribution and eutrophication in the coastal waters of Fangchenggang,Guangxi[J].Ocean Technology,2013,32(3):63-69,91.
[8] 李志文,左秀玲,滕君灿.基于GIS的中国近岸海域1950-2020年赤潮时空变异格局[J].环境科学学报,2023,43(6):203-214.
Li Z W,Zuo X L,Teng J C.GIS-based temporal and spatial patterns of red tides in the coastal waters of China from 1950 to 2020[J].Acta Scientiae Circumstantiae,2023,43(6):203-214.
[9] 徐敏,韩保新,龙颖贤.钦州湾海域氮磷营养盐近30年变化规律及其来源分析[J].环境工程技术学报,2012,2(3):253-258.
Xu M,Han B X,Long Y X.Analysis of the variation trend and sources of nitrogen and phosphorus in Qinzhou Bay in the last 30 years[J].Journal of Environmental Engineering Technology,2012,2(3):253-258.
[10] 劳齐斌,刘国强,高劲松,等.钦州湾养殖区营养盐分布特征及富营养化状况研究[J].海洋环境科学,2021,40(3):407-416.
Lao Q B,Liu G Q,Gao J S,et al.Study on the characteristics and eutrophication of nutrients in the mariculture farms of Qinzhou Bay,South China[J].Marine Environmental Science,2021,40(3):407-416.
[11] 温玉娟,徐轶肖,黎慧玲,等.广西北部湾近岸海域营养盐与富营养化状态研究[J].广西科学,2022,29(3):541-551.
Wen Y J,Xu Y X,Li H L,et al.Nutrient and Eutrophication in Coastal Waters of Beibu Gulf in Guangxi[J].Guangxi Sciences,2022,29(3):541-551.
[12] 黄向青,林进清,张顺枝,等.广西钦州湾-北海水域海水重金属分布与评价[J].海洋环境科学,2013,32(5):729-735,762.
Huang X Q,Lin J Q,Zhang S Z,et al.Seawater heavy metal distribution and quality assessment in Qinzhou Bay-Beihai waters of Guangxi coast[J].Marine Environmental Science,2013,32(5):729-735,762.
[13] 许尤厚,廖日权,粟佳,等.钦州湾东部海域表层水和浮游生物中六种重金属含量和污染评价研究[J].海洋与湖沼,2017,48(5):960-969.
Xu Y H,Liao R Q,Su J,et al.The content and pollution evaluation of six heavy metals in surface water and plankton in the eastern area of Qinzhou Bay[J].Oceanologia et Limnologia Sinica,2017,48(5):960-969.
[14] 雷学铁,粟启仲,刘国强,等.防城港西湾及邻近海域水体重金属的季节性和年际变化特征[J].广西科学,2022,29(3):511-521.
Lei X T,Su Q Z,Liu G Q,et al.Seasonal and interannual variation of heavy metals in west bay and its adjacent area of Fangchenggang Bay[J].Guangxi Sciences,2022,29(3):511-521.
[15] 庞国涛,阎琨,李伟.广西防城港近岸表层沉积物重金属分布特征及污染评价[J].中国地质调查,2022,9(1):82-90.
Pang G T,Yan K,Li W.Distribution characteristics and pollution assessment of heavy metals in coastal surface sediments of Fangchenggang in Guangxi[J].Geological Survey of China,2022,9(1):82-90.
[16] 王毅,王少鹏,王英辉,等.防城港近岸海域及河口溶解态重金属污染特征[J].广西大学学报:自然科学版,2018,43(5):2069-2078.
Wang Y,Wang S P,Wang Y H,et al.Pollution characteristics of dissolved heavy metals in nearshore and estuary of Fangchenggang[J].Journal of Guangxi University (Natural Science Edition),2018,43(5):2069-2078.
[17] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T12763.4—2007海洋调查规范第4部分:海水化学要素调查[S].北京:中国标准出版社,2008.
General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Standardization Administration.GB/T12763.4—2007 Specifications for Oceanographic Survey-Part 4:Survey-Part 4:Survey of Chemical Parameters in Sea Water[S].Beijing:Standards Press of China,2008.
[18] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB 17378.3—2007 海洋监测规范第3部分:样品采集、贮存与运输[S].北京:中国标准出版社,2008.
General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Standardization Administration.GB 17378.3—2007 The Specification for Marine Monitoring-Part 3:Sample Collection Storage and Transportation[S].Beijing:Standards Press of China,2008.
[19] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB 17378.4—2007 海洋监测规范第4 部分:海水分析[S].北京:中国标准出版社,2008.
General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Standardization Administration.GB 17378.4—2007 The Specification for Marine Monitoring-Part 4:Seawater Analysis[S].Beijing:Standards Press of China,2008.
[20] 宁阳明,尹发能.水污染指数法和模糊综合评价法在水质评价中的应用[J].河南师范大学学报:自然科学版,2020,48(6):57-63.
Ning Y M,Yin F N.Application of water pollution index method and fuzzy comprehensive evaluation method in water quality evaluation[J].Journal of Henan Normal University (Natural Science Edition),2020,48(6):57-63.
[21] Wheeler J R,Grist E,Leung K,et al.Species sensitivity distributions:data and model choice[J].Marine Pollution Bulletin,2002,45(1-12):192-202.
[22] Zhi W,Yun D,Chao Y,et al.Occurrence and ecological hazard assessment of selected antibiotics in the surface waters in and around Lake Honghu,China[J].Science of The Total Environment,2017,609:1423-1432.
[23] 杜建国,赵佳懿,陈彬,等.应用物种敏感性分布评估重金属对海洋生物的生态风险[J].生态毒理学报,2013,8(4):561-570.
Du J G,Zhao J Y,Chen L,et al.Assessing ecological risks of heavy metals to marine organisms by species sensitivity distributions[J].Asian Journal of Ecotoxicology,2013,8(4):561-570.
[24] Gangshiyouli.The pollution of shallow sea and the occurrence of red tide,mechanism of the occurrence of red tide in Inner Bay[R].Japan Aquatic Resources Protection Association,1972:58-76.
[25] 邹景忠,董丽萍,秦保平.渤海湾富营养化和赤潮问题的初步探讨[J].海洋环境科学,1983,2(2):45-58.
Zhou J Z,Dong L P,Qin B P.Preliminary discussion on eutrophication and red tide in Bohai Bay[J].Marine Environmental Science,1983,2(2):45-58.
[26] 国家海洋局.HY/T084-2005 海湾生态监测技术规程[S].北京:中国标准出版社,2005.
State Oceanic Administration.HY/T084-2005 Technical Specificatoin for Eco-Monitoring of Bay[S].Beijing:Standards Press of China,2005.
[27] 国家环境保护局.GB 3097—1997 海水水质标准[S].北京:环境科学出版社,2004.
State Environmental Protection Agency.GB 3097—1997 Marine Water Quality Standard[S].Beijing:China Environmental Press,2004.
[28] 崔志谋,史小红,赵胜男,等.基于PCA-APCS-MLR模型的乌梁素海表层沉积物重金属时空分布及来源解析[J].环境科学,2024,45(3):1415-1427.
Cui Z M,Shi X H,Zhao S N,et al.Spatiotemporal distribution and source analysis of heavy metals in surface sediments in lake ulansuhai based on PCA-APCS-MLR model[J].Environmental Science,2024,45(3):1415-1427.
[29] Schlitzer R.Ocean Data View[EB/OL].(2022-04-04).https://odv.awi.de.
[30] 中国海湾志编纂委员会.中国海湾志.第十二分册,广西海湾[M].北京:海洋出版社,1993.
Editiorial Committee of Chinese Gulf.Chinese Gulf:vol.12[M].Beijing:Ocean Press,1993.
[31] 贺志鹏,宋金明,张乃星,等.南黄海表层海水重金属的变化特征及影响因素[J].环境科学,2008,29(5):1153-1162.
He Z P,Song J M,Zhang N X,et al.Variation characteristics and controlling factors of heavy metals in the South Yellow Sea surface seawaters[J].Environmental Science,2008,29(5):1153-1162.
[32] 雷学铁,粟启仲,刘国强,等.防城港西湾及邻近海域水体重金属的季节性和年际变化特征[J].广西科学,2022,29(3):511-521.
Lei X T,Su Q Z,Liu G O,et al.Seasonal and interannual variation of heavy metals in west bay and its adjacent area of Fangchenggang Bay[J].Guangxi Sciences,2022,29(3):511-521.
[33] 王毅,王少鹏,王英辉,等.防城港近岸海域及河口溶解态重金属污染特征[J].广西大学学报:自然科学版,2018,43(5):2069-2078.
Wang Y,Wang S P,Wang Y H,et al.Pollution characteristics of dissolved heavy metals in nearshore and estuary of Fangchenggang[J].Journal of Guangxi University:Natural Science Edition,2018,43(5):2069-2078.
[34] 罗万次,苏搏,刘熊,等.广西北仑河口红树林保护区表层海水溶解态重金属时空分布及其影响因素[J].海洋通报,2014,33(6):668-675.
Luo W C,Su B,Liu X,et al.Spatial and temporal distributions and influence factors of the dissolved heavy metals in surface water in the mangrove reserve at the Beilun River Estuary in Guangxi[J].Marine Science Bulletin,2014,33(6):668-675.
[35] 阎琨,庞国涛,邢新丽,等.广西钦州湾表层沉积物中重金属的分布、来源及污染评价[J].海洋环境科学,2023,42(2):237-245.
Yan K,Pang G T,Xing X L,et al.Distribution,source and pollution assessment of heavy metals in surface sediments of Qinzhou bay,Guangxi[J].Marine Environmental Science,2023,42(2):237-245.
[36] 许冬. 北部湾东部末次冰消期以来的沉积记录及现代沉积格局的形成[D].青岛:中国科学院研究生院(海洋研究所),2014.
Xu D.Sedimentary Records Since Last Deglaciation and the Formation of Modern Sedimentary Pattern in Eastern Beibu Gulf[D].Qingdao:Institute of Oceanology,Chinese Academy of Sciences,2014.
[37] 边璐,李田,侯娟.PMF和PCA/MLR法解析上海市高架道路地表径流中多环芳烃的来源[J].环境科学,2013,34(10):3840-3846.
Bian L,Li T,Hou J.Source apportionment of polycyclic aromatic hydrocarbons using two mathematical models for runoff of the Shanghai elevated inner highway,China[J].Environmental Science,2013,34(10):3840-3846.
2024, Vol. 11 
