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Zhuang L, Zhang Y, Xue Y, Ren Y, He J, Sun H. Influence of ongoing discharge from multiple wastewater treatment plants on microplastic patterns in small-scale receiving rivers. Sci Total Environ 2024; 932:172880. [PMID: 38692310 DOI: 10.1016/j.scitotenv.2024.172880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 04/02/2024] [Accepted: 04/27/2024] [Indexed: 05/03/2024]
Abstract
As widely acknowledged, wastewater treatment plants (WWTPs) stand as significant contributors to the presence of microplastics in surface water. Nonetheless, there exists a notable research gap regarding the extent of potential pollution resulting from the concurrent and uninterrupted discharges originating from multiple WWTPs into small-scale receiving water bodies. This study endeavors to address this knowledge deficit by conducting a thorough investigation into the prevalence of microplastics in surface water. The research encompasses seven distinct locations within the Changzhou section of the Beijing-Hangzhou Grand Canal and the effluent of three WWTPs situated along the tributary. The results indicate differences in the distribution of microplastics in surface waters of mainstream and tributaries. While the microplastic abundance and composition showed little variation along the main stream, the tributaries displayed an overall increasing trend in microplastic abundance from upstream to downstream. Notably, the major contributors to this increase were fragments, fiber particles, and microplastics with particle sizes ranging from 100 to 300 μm. Considering that the primary distinction between the tributaries and the mainstream is the presence of the three WWTPs along the tributaries, the study conducted a correlation analysis between river surface water and effluents from these plants. The results indicated a stronger correlation between the tributaries and the effluents, suggesting that WWTPs are one of the primary factors contributing to the elevated levels of microplastics in the tributaries. Finally, a comparative analysis of microplastic abundance in the Beijing-Hangzhou Grand Canal's Changzhou section and other regions was conducted. The findings revealed that the microplastic pollution level in the Beijing-Hangzhou Grand Canal's Changzhou section is higher than that in most other rivers. Therefore, the issue of microplastic pollution in the Beijing-Hangzhou Grand Canal's Changzhou section warrants our attention, particularly with regard to the effectiveness of microplastic removal by the WWTPs along its course.
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Affiliation(s)
- Lu Zhuang
- School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Yunian Zhang
- School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Yingang Xue
- School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China.
| | - Yanfang Ren
- School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Junyu He
- School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Haohao Sun
- School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, China.
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Wu JL, Xu GJ, Wei XX, Yu YJ, Wang SJ, Ren WL, Cui W, Su XN. Distribution of Diatoms in the Navigable Sections of Beijing-Hangzhou Grand Canal. Fa Yi Xue Za Zhi 2022; 38:86-91. [PMID: 35725710 DOI: 10.12116/j.issn.1004-5619.2021.410917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVES To establish a diatom database by analyzing the quatity, species distribution and differences of diatom in water samples of the whole navigable sections of the Beijing-Hangzhou Grand Canal, to provide a reference for the inference of the drowning site. METHODS Water samples were collected at 22 sites in the navigable sections of the Beijing-Hangzhou Grand Canal (Jining section to Yangzhou Section), and the diatoms at each site were qualitatively and quantitatively analyzed by using graphite digestion-scanning electron microscopy. RESULTS Sampling site T (Laohuaijiang River Line, Gaoyou City, Yangzhou City, Jiangsu Province) had the highest number of diatoms, while sampling site O (Siyang County, Suqian City, Jiangsu Province) had the lowest number of diatoms, with a large gap of 68 times. At sampling site Q (Jiangpu District, Huaian city, Jiangsu Province), there were 19 species of diatoms. The sampling site O had the least diatoms, with 7 species. There were no significant differences in species evenness and species diversity at each sampling site (P>0.05). Some sampling sites have characterized diatoms, such as Caloneis at station A (Taibai Lake, Weishan County, Shandong Province), Rhoicosphenia at station B (Nanyang Town, Weishan County, Shandong Province), Amphora at station I (Taierzhuang District, Zaozhuang City, Shandong Province) and Epithemia at station J (Pizhou 310 national highway, Xuzhou City, Jiangsu Province). CONCLUSIONS The species richness of diatoms gradually increased from north to south. Diatom species richness and species diversity might be higher in areas with complex environments and large population flow. Climate type has a certain influence on the distribution of diatoms.
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Affiliation(s)
- Jia-Li Wu
- Jining Medical University, Jining 272067, Shandong Province, China
| | - Guo-Jing Xu
- Jining Medical University, Jining 272067, Shandong Province, China
| | - Xiao-Xiao Wei
- Jining Medical University, Jining 272067, Shandong Province, China
| | - Yan-Jun Yu
- Jining Medical University, Jining 272067, Shandong Province, China
| | - Shao-Jie Wang
- Jining Medical University, Jining 272067, Shandong Province, China
| | - Wen-Li Ren
- Jining Medical University, Jining 272067, Shandong Province, China
| | - Wen Cui
- Jining Medical University, Jining 272067, Shandong Province, China
| | - Xiao-Nan Su
- Jining Medical University, Jining 272067, Shandong Province, China
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Cheng ZH, Deng YX, Zhuo XK, Dai D, Yu T. [Changes in Water Chemistry and Driving Factors in the Middle and Lower Reaches of the Beijing-Hangzhou Grand Canal]. Huan Jing Ke Xue 2021; 42:2251-2259. [PMID: 33884794 DOI: 10.13227/j.hjkx.202009018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To reveal the Beijing-Hangzhou Grand Canal natural water chemistry characteristics and the influence of human activities, river samples from Xuzhou to Jiaxing were collected in 2019-2020. Simultaneously, the water chemistry data of the canal from 1959 to 1962 and 1975 to 1977 in the Suzhou, Wuxi, and Changzhou sections and the recent social and economic data of the major cities along the canal were collected and analyzed. The results showed that the type of hydrochemistry in the study area was mainly influenced by the weathering of carbonate rocks in the basin, but K++Na+ accounted for 40.39% of the cation equivalent concentration, which was higher than that in ordinary surface water, thereby indicating that the natural hydrochemistry of the canal had been significantly affected by human factors. Spatially, the major ion mass concentrations, total hardness, and total alkalinity of the Grand Canal from Xuzhou station to the downstream area tended to decrease overall, but the parameters at Wuxi and Suzhou stations increased significantly. It was found that Na+ and SO42- were increased by approximately 16 and 12 times and total dissolved solids was increased by nearly 3 times by analyzing the 60 years of water chemistry of the Suzhou, Wuxi, and Changzhou sections. The current (Ca2++Mg2+)/HCO3- ratio in the Suzhou, Wuxi, and Changzhou sections is generally greater than 1, which is significantly higher than that from 1959 to 1962, thereby reflecting the results of human activities. According to the analysis of the social and economic development of the Grand Canal, this change was the result of the accelerated weathering of carbonate rocks in the basin caused by the sulfur oxides discharged by human activities. Further statistical analysis showed that urban domestic sewage and industrial wastewater discharge were the main driving factors causing chemical salinization of natural water in the Grand Canal. This study can provide a scientific basis for coordinating urban development and protecting the water ecological environment of the Grand Canal Basin.
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Affiliation(s)
- Zhong-Hua Cheng
- College of Environmental Science and Technology, Yangzhou University, Yangzhou 225127, China
| | - Yi-Xiang Deng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xiao-Ke Zhuo
- College of Environmental Science and Technology, Yangzhou University, Yangzhou 225127, China
| | - Dan Dai
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Tao Yu
- College of Environmental Science and Technology, Yangzhou University, Yangzhou 225127, China
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Jiang TT, Shi L, Li W, Zhang JF, He J, Wang XY, Liu L, Feng Y, Wang L, Xie YQ, Wang ZJ, Zhu T, Jiang T, Sun JP, Dai W, Xu DC, Yang K. [Spatio-temporal distribution of Oncomelania hupensis snails along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:10-14. [PMID: 32185922 DOI: 10.16250/j.32.1374.2019307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To explore the spatio-temporal characteristics of Oncomelania hupensis snails along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal, so as to provide scientific evidence for the dynamic assessment of the risk of snail spread in this region. METHODS O. hupensis snail status was collected in the plain regions with waterway networks in the study area from 2012 to 2017. The spatio-temporal variations of snail distribution were investigated along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal using buffer zone analysis, spatial autocorrelation, hotspot analysis and standard deviational ellipse with the geographical information system (GIS) tools. RESULTS The number of snail habitats showed a tendency towards a rise in the study area from 2012 to 2017, and snail habitats were predominantly distributed in the 1 000 m long buffer zone of the Danyang-Jintan-Liyang Canal, notably along the Jiuqu River at the junction between the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal. The distribution of snail habitats appeared spatial autocorrelations in 2014, 2016 and 2017, and the hotspot areas were mainly identified at the junction between the Danyang-Jintan-Liyang Canal and the Beijing-Hangzhou Grand Canal. In addition, the overall distribution of snail habitats was located in the northeastern-southwestern part of the study aera, and gradually shifted to the southern and northern parts with the time. CONCLUSIONS The spatial distribution of O. hupensis snails is complex along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal, and there is a risk of snail spread from the upper reaches to the lower reaches, where snail control needs to be intensified.
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Affiliation(s)
- T T Jiang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - L Shi
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China.,Co-first author
| | - W Li
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - J F Zhang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - J He
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - X Y Wang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - L Liu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - Y Feng
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - L Wang
- Zhenjiang Center for Disease Control and Prevention, Jiangsu Province, China
| | - Y Q Xie
- Chang-zhou Center for Disease Control and Prevention, Jiangsu Province, China
| | - Z J Wang
- Danyang Center for Disease Control and Prevention, Jiangsu Province, China
| | - T Zhu
- Danyang Center for Disease Control and Prevention, Jiangsu Province, China
| | - T Jiang
- Danyang Center for Disease Control and Prevention, Jiangsu Province, China
| | - J P Sun
- Jintan Center for Disease Control and Prevention, Changzhou City, Jiangsu Province, China
| | - W Dai
- Jintan Center for Disease Control and Prevention, Changzhou City, Jiangsu Province, China
| | - D C Xu
- Jintan Center for Disease Control and Prevention, Changzhou City, Jiangsu Province, China
| | - K Yang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
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