1
|
Tang-Siri J, Vibhatabandhu P, Srithongouthai S. Occurrence of microplastics and ecological risk assessment during tidal changes in the Chao Phraya River estuary, Thailand. MARINE ENVIRONMENTAL RESEARCH 2024; 200:106647. [PMID: 39032189 DOI: 10.1016/j.marenvres.2024.106647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 05/14/2024] [Accepted: 07/15/2024] [Indexed: 07/22/2024]
Abstract
River estuaries are specific transition zones that connect coastal and terrestrial environments and are recognized as primary conveyors for land-derived plastics to open oceans. The present study is the first to investigate tidal effects on microplastics (MPs) in the Chao Phraya River estuary. MPs (16-5000 μm) were collected from the water column during the changes in tidal current in order to analyze abundance, characteristics, and ecological risk. The abundance of MPs varied from 1.37 to 4.51 pieces/L and an average of 4.0 ± 3.8 pieces/L were found during the tidal cycle, which implied moderate to relatively high contamination when compared to other estuaries. Moreover, the average abundance of MPs during the low tide period was comparatively higher than that in other tidal phenomena. Morphological characteristics revealed that shape of fragments, shade of blue, size of 16-100 μm and PTFE is dominant in the MPs. The pollution load index (PLICPRE) was 5.98, which denoted that the Chao Phraya River estuary is polluted with MPs at a low contamination level. In contrast, the risk index (RICPRE) of MPs in the water column during the tidal cycle was 318.8, which indicated that the estuarine ecosystem of the Chao Phraya River is under considerable risk. In the present study, an ecological risk assessment was conducted for the Chao Phraya River estuary, which provides basic reference data for the management of pollution control related to MPs in the Chao Phraya River basin.
Collapse
Affiliation(s)
- Jiradet Tang-Siri
- Department of Environmental Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Pathompong Vibhatabandhu
- Department of Environmental Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Sarawut Srithongouthai
- Department of Environmental Science, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Research Unit (RU) of Waste Utilization and Ecological Risk Assessment, Chulalongkorn University, Bangkok, 10330, Thailand.
| |
Collapse
|
2
|
Peng D, Zhang J, Fan C, Zhu B, Fu M, Zhang P. Effects of terrestrial input on heavy metals in Zhanjiang Bay, a typical subtropical bay in the South China Sea. MARINE POLLUTION BULLETIN 2024; 199:116015. [PMID: 38217917 DOI: 10.1016/j.marpolbul.2023.116015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/15/2024]
Abstract
Understanding the influence of terrestrial inputs on heavy metals in bays is crucial for the environmental protection of regional estuaries and coastal systems. In this study, the concentrations, temporal and regional distribution characteristics, and fluxes of heavy metals (Cr, Cu, Zn, Cd, Pb) in the surface seawater and terrestrial sewage of Zhanjiang Bay (ZJB) in four different seasons were investigated. The results identified the heavy metal concentrations in the sewage outlet around ZJB had significant seasonal variation. The heavy metals in the surface seawater of ZJB had significant spatiotemporal variations. Terrestrial input, biological activity and hydrodynamics affected the overall distribution. The heavy metal emission fluxes indicated that riverine input was the main influencing factor for heavy metals in ZJB (96.22 %). The fluxes of heavy metals into ZJB increased significantly after the typhoon (Cu: 127 %, Zn: 63 %, Pb: 136 %), it was possible to deteriorate the seawater quality.
Collapse
Affiliation(s)
- Demeng Peng
- College of Chemistry and Environmental Science, Guangdong Ocean University, Guangdong, Zhanjiang 524088
| | - Jibiao Zhang
- College of Chemistry and Environmental Science, Guangdong Ocean University, Guangdong, Zhanjiang 524088..
| | - Chuping Fan
- College of Chemistry and Environmental Science, Guangdong Ocean University, Guangdong, Zhanjiang 524088
| | - Bo Zhu
- College of Chemistry and Environmental Science, Guangdong Ocean University, Guangdong, Zhanjiang 524088
| | - Miaojian Fu
- College of Chemistry and Environmental Science, Guangdong Ocean University, Guangdong, Zhanjiang 524088
| | - Peng Zhang
- College of Chemistry and Environmental Science, Guangdong Ocean University, Guangdong, Zhanjiang 524088..
| |
Collapse
|
3
|
Adebayo AS, Olufemi AP, Dasho O, Awosika DD, Olagunju E. Environmental impact assessment of active dumpsite in Ondo City, Nigeria: geochemical and geophysical approaches. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:785. [PMID: 37261569 DOI: 10.1007/s10661-023-11361-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 05/08/2023] [Indexed: 06/02/2023]
Abstract
An assessment of the heavy metal levels associated with municipal waste in the vicinity of the Pele dumpsite, Ondo State, Nigeria, has been undertaken with the view of evaluating the environmental hazards associated with the dumpsite. A total of 23 composite soil samples were collected, measured, and analyzed for six toxic metals, and three dipole-dipole profiles were occupied within the study area. Six different pollution indices were used to evaluate the soil pollution level and ecological risk associated with the dumpsite. The 2D electrical resistivity method was used to delineate the extent of the pollution plume. The mean concentration (in µg/g) of the metals followed a descending order as Zn (75.78) > Cu (37.09) > Pb (25.96) > Cr (6.77) > Ni (5.43) > Cd (0.38). The geoaccumulation indexes revealed Cu (0.56-2.88), Pb (0.49-2.52), and Zn (0.58-2.37) as low to moderate pollutants, while Cd (1.70-6.80) was classified as a moderate-to-considerable high-level pollutant. The ecological assessment indicated moderate risk at most of the sampling points. The 2D resistivity model revealed the weathered layer, which makes up the primary aquifer units, had relatively low resistivity zones, indicating the influence of leachates from the dumpsite, and the vertical expanse of leachate movement was evaluated to be > 25 m. The existence of this pollution plume poses threat to the ecosystem and the health of the surrounding population. Proper management is recommended to resolve this probable ecosystem and health issue.
Collapse
Affiliation(s)
- Adebiyi S Adebayo
- Department of Physics, University of Medical Sciences, Ondo, Nigeria.
| | - Ayodele P Olufemi
- Department of Physics, University of Medical Sciences, Ondo, Nigeria
| | - Oluwaseyi Dasho
- Department of Physical Sciences, Ondo State University of Science and Technology, Ondo, Nigeria
| | | | - Emmanuel Olagunju
- Department of Mathematics and Natural Sciences, William V.S.Tubman University, Monrovia, Liberia
| |
Collapse
|
4
|
Ni X, Zhao G, Ye S, Li G, Yuan H, He L, Su D, Ding X, Xie L, Pei S, Laws EA. Spatial distribution and sources of heavy metals in the sediment and soils of the Yancheng coastal ecosystem and associated ecological risks. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18843-18860. [PMID: 36219297 DOI: 10.1007/s11356-022-23295-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Studies of heavy metal pollution are essential for the protection of coastal environments. In this study, positive matrix factorization (PMF) and a GeoDetector model were used to evaluate the sources of heavy metal contamination and associated ecological risks along the Yancheng Coastal Wetland. The distribution of heavy metals was shown to be greatly affected by clay content, except for Cr in shoal. Components from 6.5 to 9φ have the strongest ability to absorb heavy metals, where the effects of Cd and Zn sequestration in the wetlands were most apparent. The abilities of various wetland environments to sequester heavy metals were shown to be Spartina alterniflora wetland > woodland > Phragmites australis wetland > aquaculture pond > shoal > paddy > meadow > dry land. The sources of the heavy metals included parent soil material (59%), agriculture (15%), and industrial pollutants (26%). According to the single-factor pollution index, there was no evidence of pollution except Cr and Pb. In general, the heavy metal pollution was insignificant. The order of pollution loading index was shoal > paddy field > dry land > Spartina Alterniflora wetland > aquaculture ponds > woodland > meadow > Phragmites australis wetland. The ecological harm of heavy metal exposure was slight except for Cd and Hg, where vehicle emissions appeared to be the main cause of heavy metal pollution.
Collapse
Affiliation(s)
- Xin Ni
- College of Marine Geosciences, Ocean University of China, Qingdao, 266100, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China
| | - Guangming Zhao
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China.
- The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao Institute of Marine Geology, China Geologic Survey, Qingdao, 266071, People's Republic of China.
- Shandong University of Science and Technology, Qingdao, 266590, People's Republic of China.
| | - Siyuan Ye
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China.
- The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao Institute of Marine Geology, China Geologic Survey, Qingdao, 266071, People's Republic of China.
| | - Guangxue Li
- College of Marine Geosciences, Ocean University of China, Qingdao, 266100, People's Republic of China
| | - Hongming Yuan
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China
- The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao Institute of Marine Geology, China Geologic Survey, Qingdao, 266071, People's Republic of China
| | - Lei He
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China
- The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao Institute of Marine Geology, China Geologic Survey, Qingdao, 266071, People's Republic of China
| | - Dapeng Su
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China
- The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao Institute of Marine Geology, China Geologic Survey, Qingdao, 266071, People's Republic of China
| | - Xigui Ding
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China
- The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao Institute of Marine Geology, China Geologic Survey, Qingdao, 266071, People's Republic of China
| | - Liujuan Xie
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China
- The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao Institute of Marine Geology, China Geologic Survey, Qingdao, 266071, People's Republic of China
| | - Shaofeng Pei
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, People's Republic of China
- The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao Institute of Marine Geology, China Geologic Survey, Qingdao, 266071, People's Republic of China
| | - Edward A Laws
- College of the Coast & Environment, Department of Environmental Sciences, Louisiana State University, Baton Rouge, LA, 70803-4110, USA
| |
Collapse
|
5
|
Jiang S, Ni X, Cheng H, Zhao G. Geochemical characteristics of heavy metals in surface sediments of the Bohai Strait, China. MARINE POLLUTION BULLETIN 2023; 186:114436. [PMID: 36473248 DOI: 10.1016/j.marpolbul.2022.114436] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/19/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
The heavy metal (Cr, Cu, Ni, Pb, and Zn) content and particle size of surface sediment samples taken from 123 sites in the Bohai Strait of China were analyzed. All five heavy metals showed a similar distribution in the Bohai Strait, with lower concentrations in the middle and higher concentrations at the sides of the strait. The amount of heavy metals was lowest in the Laotieshan Channel due to the rapid current in this channel. According to our calculated values of the pollution index (Pi), only 1.6 % of the sample sites were polluted by Cr and Cu. The calculated geo-accumulation index (Igeo) values showed that few of the sites were polluted by heavy metals. The level of Pb was controlled by both terrigenous inputs and clay adsorption, while the levels of the other heavy metals (Cr, Cu, Ni, and Zn) were mainly controlled by terrigenous inputs.
Collapse
Affiliation(s)
| | - Xin Ni
- Ocean University of China, Qingdao 266100, PR China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China
| | - Haiyan Cheng
- Qingdao Geological Exploration Institute, China Metallurgical Geology Bureau, Qingdao 266100, PR China
| | - Guangming Zhao
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China; Shandong University of Science and Technology, Qingdao 266590, PR China; The Key Laboratory of Coastal Wetlands Biogeosciences, Qingdao 266071, PR China.
| |
Collapse
|
6
|
Wei Y, Ding D, Qu K, Sun J, Cui Z. Ecological risk assessment of heavy metal pollutants and total petroleum hydrocarbons in sediments of the Bohai Sea, China. MARINE POLLUTION BULLETIN 2022; 184:114218. [PMID: 36242800 DOI: 10.1016/j.marpolbul.2022.114218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/30/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Heavy metals and organic pollutants like total petroleum hydrocarbons (TPHs) in coastal marine sediments are receiving extensive attention, as they may pose a serious threat to the aquatic environment and ecosystem health. To date, however, data on the long-term variations in the levels of sedimentary heavy metals and TPHs as well as their ecological risks are relatively limited. Here, we conducted 12 cruises spanning 3 years in the Bohai Sea and obtained ~1400 sediment samples to explore the long-term variations of heavy metals (i.e., Hg, As, Cu, Zn, Pb, Cd) and TPHs, and to assess their potential ecological risks. The results suggested that the ranges for the levels of Hg, As, Cu, Zn, Pb, Cd, and TPHs in sediments between 2019 and 2021 were <0.01-0.07, 0.23-10.72, 8.07-20.67, 25.52-46.55, 10.94-28.19, 0.14-0.56, and 9.14-18.41 mg kg-1, respectively. Based on the single factor evaluation (Fi) for sediment quality, we found that most of the evaluation factors in the study area met the requirements of sediment quality standard (i.e., Fi < 1), except for the factor of metal Cd in some cases. The implication is that the sediment in the Bohai Sea was fairly clean in terms of heavy metals and TPHs. However, the concentration of metal Cd exceeded the sediment quality standard during May 2019 and 2020 (i.e., Fi > 1), indicating that Cd could be identified as a major pollutant in surface sediments. Also, based on the ecological risk assessment (Ei) of heavy metal pollutants, we found that the metal Cd had reached a level with potential ecological risk in some cases (80 ≤ Ei < 160). As such, we further suggested that the Cd contamination might have a potential risk on the Bohai Sea' ecosystem.
Collapse
Affiliation(s)
- Yuqiu Wei
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Dongsheng Ding
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Keming Qu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Jun Sun
- Institute for Advanced Marine Research, China University of Geosciences, Guangzhou 511462, China; Research Centre for Indian Ocean Ecosystem, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Zhengguo Cui
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China.
| |
Collapse
|
7
|
Tian ZX, Zhang Y, Mei X, Xiong W, Mi BB, Wang ZL. Spatial distribution and ecological risk assessment of heavy metals in surface sediments from the northern Bohai Strait, China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:802. [PMID: 36121518 DOI: 10.1007/s10661-022-10470-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/10/2022] [Indexed: 06/15/2023]
Abstract
The epicontinental seas to the east of China have become highly anthropogenically impacted due to rapid economic development in recent decades, resulting in various environmental problems, including heavy metal pollution. The Bohai Strait, as a key junction connecting the material-energy exchange between the Bohai and Yellow Seas, is extremely critical in regional pollution prevention and control. To ascertain the spatial distribution and contamination levels of heavy metals in the surface sediments of the northern Bohai Strait, a systematic investigation was conducted. Geochemical analysis revealed that the concentrations (in ppm) of heavy metal elements in surface sediments vary in the range of 4.19-77.6 for As, 0.04-0.21 for Cd, 5.1-65.7 for Pb, 0.30-39.40 for Cu, 7.77-46.50 for Ni, 1.50-86.60 for Cr, 11.70-91.80 for Zn, and 0.005-0.038 for Hg. Ecological statistics indicate that the northern Bohai Strait suffers from prominent heavy metal pollution primarily induced by As, Cd, and Pb, accompanied by relatively weak pollution of Cu and Ni. Sediments collected from the submarine depressions and the southeast region exhibit higher heavy metal concentrations, and as a consequence, more serious ecological risk. Correlation analysis indicated that the accumulations of Hg, Cr, and Zn were associated with the deposition of organic matter. Preliminary provenance discrimination suggested that the pollutants were mainly derived from the eastern parts of the North Yellow Sea, rather than the Bohai region.
Collapse
Affiliation(s)
- Zhi-Xian Tian
- Institute of Geology and Paleontology, Linyi University, Linyi, China
- Qingdao Institute of Marine Geology, China Geological Survey, 266071, Qingdao, China
| | - Yong Zhang
- Qingdao Institute of Marine Geology, China Geological Survey, 266071, Qingdao, China
| | - Xi Mei
- Qingdao Institute of Marine Geology, China Geological Survey, 266071, Qingdao, China.
- Evaluation and Detection Technology Laboratory of Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
| | - Wei Xiong
- College of Marine Geoscience, Ocean University of China, Qingdao, China
| | - Bei-Bei Mi
- Qingdao Institute of Marine Geology, China Geological Survey, 266071, Qingdao, China
| | - Zhong-Lei Wang
- Qingdao Institute of Marine Geology, China Geological Survey, 266071, Qingdao, China
| |
Collapse
|
8
|
Sharma MD, Krupadam RJ. Adsorption-desorption dynamics of synthetic and naturally weathered microfibers with toxic heavy metals and their ecological risk in an estuarine ecosystem. ENVIRONMENTAL RESEARCH 2022; 207:112198. [PMID: 34656635 DOI: 10.1016/j.envres.2021.112198] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/12/2021] [Accepted: 10/07/2021] [Indexed: 05/12/2023]
Abstract
Microfibers (MFs) in aquatic and marine ecosystems adsorb toxic heavy metals and then transfer the heavy metals enriched MFs to living organisms. In this research paper, the adsorption-desorption dynamics of heavy metals onto MFs was studied by using theoretical models and experimental investigations. The adsorption of metals onto MFs was well correlated for the Freundlich model and the adsorption kinetics follows pseudo-second order rate equation. The adsorption capacity of naturally weathered MFs was 30.8 mg g-1 which is about 35% higher than the synthetic fiber of similar range of size of MFs. The leaching of heavy metals from MFs was found that 90-95% of adsorbed metals were leached within 24 h. The leaching of Ti(II) and Al(III) were slower than the other metal ions. The salinity has shown decrease in adsorption capacity of MFs for heavy metals. Based on the Nemerov pollution index (PN), the naturally weathered MFs enriched with heavy metals in sediments became heavily polluted with PN values between 2.98 and 3.49. The risk index value of 396 represents that the bottom dwellers and other marine organisms in the Narmada estuary high risk from MFs and MFs enriched with metals. This study indicates that MFs play dominant role in fate and distribution of heavy metals in the estuarine ecosystems.
Collapse
Affiliation(s)
- Madhu D Sharma
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, 440020, India; Academy of Scientific & Innovative Research, Sector 19, Kamla Nehru Nagar, Gaziabad, 201002, India
| | - Reddithota J Krupadam
- Environmental Materials Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, 440020, India; Academy of Scientific & Innovative Research, Sector 19, Kamla Nehru Nagar, Gaziabad, 201002, India.
| |
Collapse
|
9
|
Marine sediment analysis – A review of advanced approaches and practices focused on contaminants. Anal Chim Acta 2022; 1209:339640. [DOI: 10.1016/j.aca.2022.339640] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 11/17/2022]
|
10
|
Liu X, Zeng B, Lin G. Arsenic (As) contamination in sediments from coastal areas of China. MARINE POLLUTION BULLETIN 2022; 175:113350. [PMID: 35092934 DOI: 10.1016/j.marpolbul.2022.113350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Arsenic (As) from various anthropogenic sources has accumulated in estuarine and coastal sediments of China in the past decade, but we know little about the overall situation of As pollution at a national scale. Here, we analysed the spatial-temporal distribution characteristics, source, fate, and potential risks of As from 11 provincial-level regions across coastal China based on reviewed data extracted from previous studies published in the past 20 years. The anthropogenic contribution to As load was evident in 8 out of 11 provinces, especially in developed areas such as Tianjin, Zhejiang, and Guangdong. The weighted mean concentration of As in coastal sediments was 9.75 mg kg-1, which was close to national agricultural land (10.7 mg kg-1) and mixed land (12.1 mg kg-1) soil values, and this indicated the likely terrestrial influences and homogenization of As distribution at the interface between land and sea. The accumulation has decreased significantly since 2005, which might be due to continuously reduced emissions from farming and animal husbandry and household consumption in the catchment of coastal areas. The geoaccumulation index indicated that the proportions of unpolluted, unpolluted to moderately polluted, and moderately polluted cases were 48%, 28%, and 8%, respectively. This study provides a comprehensive and quantitative review on As contamination in coastal sediments on a national scale. The results could be used in coastal sediment quality assessment and decision-making by authorities to meet the regulatory requirements linked to coastal environmental protection and management.
Collapse
Affiliation(s)
- Xun Liu
- CAS Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Biao Zeng
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Guo Lin
- School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China.
| |
Collapse
|
11
|
Yu C, Sui W, Liang B, Bao C, Ma M. Temporal trends of heavy metals in the sediments of Bohai Bay in China. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:79. [PMID: 35006389 DOI: 10.1007/s10661-021-09747-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
The status and trend of mercury (Hg), cadmium (Cd), lead (Pb), copper (Cu), chromium (Cr), zinc (Zn), and arsenic (As) in the sediment of Bohai Bay from 1978 to 2017 were evaluated. The results indicated that the sediment status in 2017 was good. The contents of Hg, Cd, Pb, Cu, Cr, Zn, and As in all the monitoring stations were lower than category I. But, it is worth noting that the contents of Cu, Cr, and As in some stations were between threshold effects levels (TEL) and probable effects levels (PEL) guidelines, which were occasionally correlated to negative ecological effects. Since the reform and opening up of China, only the average content of Cd in 1996 was between category II and category III, but that in other years did not exceed category I. The average contents of Hg, Pb, Cu, Cr, Zn, and As were lower than category I. The Chinese Government should continue to pay high attention to the total quantity control measures of major risk factors Cd, Cu, Cr, and As.
Collapse
Affiliation(s)
- Chunyan Yu
- National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Weina Sui
- National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Bin Liang
- National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Chenguang Bao
- National Marine Environmental Monitoring Center, Dalian, 116023, China
| | - Minghui Ma
- National Marine Environmental Monitoring Center, Dalian, 116023, China.
| |
Collapse
|
12
|
Apaydın A, Kabaoğlu H, Apaydın G, Şirin M, Cengiz E, Köksal OK, Baltaş H, Tıraşoğlu E. Evaluation of ecological risk, source, and spatial distribution of some heavy metals in marine sediments in the Middle and Eastern Black Sea region, Turkey. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:7053-7066. [PMID: 34462859 DOI: 10.1007/s11356-021-16017-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
In the present study, the concentration levels of heavy metals such as Mn, Fe, Ni, Cu, Zn, Cr, and Pb in sediment samples collected from 16 sampling locations in the Middle and Eastern Black Sea regions, Turkey, were measured using energy dispersive X-ray fluorescence spectroscopy (EDXRF). Various pollution parameters and methods, such as the enrichment factor (EF), geo-accumulation index (Igeo), contamination factor (CF), pollution load index (PLI), ecological risk index (RI), and geo-spatial distribution patterns, were used to assess the pollution status, ecological risks, and sources of metals in sediment in detail. The mean concentrations of Mn, Fe, Ni, Cu, Zn, Cr, and Pb were found to be 565.38, 46,000, 34.38, 104.06, 109.88, 87.31, and 32.31 mg/kg, respectively. Results showed that the mean concentrations of Cu, Zn, and Pb exceeded the crustal shale value, with the exception of Mn, Fe, Ni, and Cr. According to the calculated pollution parameters, although minimal or moderate pollution was detected in the area investigated, it was determined that there was a very low ecological risk. Multivariate statistical analysis results showed that Cu, Zn, and Pb levels in the investigated region were slightly influenced by anthropogenic inputs such as mining and agricultural practices. In addition, the geo-spatial distributions of Cu, Zn, Fe, and Pb were found to be higher in this region due to the mining activities carried out in the Eastern Black Sea region.
Collapse
Affiliation(s)
| | - Hatice Kabaoğlu
- Faculty of Engineering, Department of Computer Engineering, Gazi Universit, Ankara, Turkey
| | - Gökhan Apaydın
- Faculty of Science, Department of Physics, Karadeniz Technical University, Trabzon, Turkey.
| | - Murat Şirin
- Faculty of Arts and Science, Department of Physics, Recep Tayyip Erdogan University, Rize, Turkey
| | - Erhan Cengiz
- Faculty of Engineering, Department of Fundamental Science, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Oğuz Kağan Köksal
- Gölbaşı Vocational School, Department of Electricity and Energy, Adıyaman University, Adıyaman, Turkey
| | - Hasan Baltaş
- Faculty of Arts and Science, Department of Physics, Recep Tayyip Erdogan University, Rize, Turkey
| | - Engin Tıraşoğlu
- Faculty of Science, Department of Physics, Karadeniz Technical University, Trabzon, Turkey
| |
Collapse
|
13
|
Liu Y, Kuang W, Xu J, Chen J, Sun X, Lin C, Lin H. Distribution, source and risk assessment of heavy metals in the seawater, sediments, and organisms of the Daya Bay, China. MARINE POLLUTION BULLETIN 2022; 174:113297. [PMID: 35090281 DOI: 10.1016/j.marpolbul.2021.113297] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
Cu, Pb, Zn, Cd, Cr, Hg and As in seawater, sediment and organisms of the Daya Bay, Guangdong province, China were measured to acquire the comprehensive understanding on distribution, sources and risk assessment of heavy metals (HMs) in the marine ecosystem. The concentrations were relatively ideal, and the Pb was the major pollutant in the seawater and sediment. The contents of HMs were highest in spring; the concentrations near the sewage outlet and shore were noticeable. Submarine pipeline sewage, atmospheric deposition and runoff were the main sources of HMs in coastal waters. Studied HMs were preferentially retained by liquid phase; Cd, Cu and Zn were the most accumulated elements in the organisms from the surrounding environment. Cd in shellfish deserved particular attention, but the health risks including non-carcinogenic and carcinogenic risks of all elements were within acceptable limits. The potential health risks of Pb have been confirmed by molecular docking.
Collapse
Affiliation(s)
- Yang Liu
- Laboratory of Marine Ecological Environment Monitoring Pre-Warning Technology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| | - Weiming Kuang
- Laboratory of Marine Ecological Environment Monitoring Pre-Warning Technology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| | - Jing Xu
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China.
| | - Jinmin Chen
- Laboratory of Marine Ecological Environment Monitoring Pre-Warning Technology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| | - Xiuwu Sun
- Laboratory of Marine Ecological Environment Monitoring Pre-Warning Technology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| | - Cai Lin
- Laboratory of Marine Ecological Environment Monitoring Pre-Warning Technology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| | - Hui Lin
- Laboratory of Marine Ecological Environment Monitoring Pre-Warning Technology, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.
| |
Collapse
|
14
|
Magnetic Nanocomposite Based on Carboxyl‐Functionalized
Candida albicans
for Removal of Heavy Metals Ions from Wastewater. ChemistrySelect 2021. [DOI: 10.1002/slct.202102852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
15
|
Han X, Wang J, Cai W, Xu X, Sun M. The Pollution Status of Heavy Metals in the Surface Seawater and Sediments of the Tianjin Coastal Area, North China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:11243. [PMID: 34769760 PMCID: PMC8582827 DOI: 10.3390/ijerph182111243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/13/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022]
Abstract
Heavy metal pollution has become a great concern due to its adverse effects on the ecological system and human health. The present study investigated the concentrations of six common heavy metals (Cr, Cu, Zn, As, Cd, and Pb) in the Tianjin coastal area to understand their distribution, enrichment, sources, and potential ecological risk levels, focusing on the main contributors. The results showed that the concentration of Cu was high in the surface seawater (6.89 µg/L for the average), while Cd was the main contaminating metal in the sediments, with an average concentration of 0.77 mg/kg. The potential ecological risk index (RI) implied that the heavy metals in the sediments could cause considerable ecological risk, and Cd was the major contributor to ecological risk in this area. In particular, the field investigation showed that Cd contamination occurred as a result of anthropogenic activities, including port transportation, mariculture, and metal fabrication along the coastal area. Therefore, it is necessary to control Cd contamination in the future to improve the quality of the marine environment in Bohai Bay.
Collapse
Affiliation(s)
- Xuemeng Han
- College of Marine and Environmental Sciences, Tianjin University of Science & Technology, Tianjin 300457, China;
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
| | - Junqiang Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Wenqian Cai
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Xiangqin Xu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
| | - Mingdong Sun
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; (J.W.); (X.X.)
| |
Collapse
|
16
|
Characteristics of Heavy Metals in Seawater and Sediments from Daya Bay (South China): Environmental Fates, Source Apportionment and Ecological Risks. SUSTAINABILITY 2021. [DOI: 10.3390/su131810237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, the spatiotemporal distributions, potential sources, and ecological risks of Hg, Cr, and As in seawater, and Hg, As, Zn, Cd, Pb, and Cu in sediments from Daya Bay were investigated. The five-year average concentrations of Hg, Cr, and As in seawater were 0.020 μg/L, 0.79 μg/L, and 2.08 μg/L, respectively. The five-year average concentrations of Hg, As, Zn, Cd, Pb, and Cu in surface sediments were 0.04 mg/kg, 7.34 mg/kg, 63.81 mg/kg, 0.23 mg/kg, 25.60 mg/kg, and 11.78 mg/kg, respectively. Annual variations in Hg, Cr, and As in seawater exhibited different trends. HMs in sediments, such as As, Zn, Pb, and Cu, exhibited similar annual variations, whereas Hg and Cd exhibited different annual variations. The spatial distribution of metal species in seawater and sediments showed significant variability, and the concentrations decreased gradually from the coast to the open sea. The comprehensive potential ecological hazard index (RI) of HMs in sediments indicated a relatively high risk, especially for Hg and Cd contamination. The geoaccumulation indices (Igeo) of As, Zn, Pb, and Cu suggested that these metals did not pollute Daya Bay, whereas those of Cd and Hg indicated mild and moderate pollution. The environmental fates of HMs were discussed based on Pearson correlation analysis, revealing that concentrations of HMs were greatly affected by parameters, such as pH, salinity, dissolved oxygen (DO), and total organic carbon (TOC). Principal component and factor analyses indicated that Hg, Cr, As, and dissolved inorganic nitrogen (DIN) in water originated from similar sources, including domestic sewage and wastewater from fishing ports, runoffs, and outlets. For sediments, it was proposed that Cu, Zn, As, Pb, and TOC exhibited similar sources, including cage culture and waste discharge from outlets. Meanwhile, Hg and Cd originated from other point sources, such as a harbor. The study suggests that sustainable management and economic development be integrated to control pollutant emissions in Daya Bay.
Collapse
|
17
|
Chen Q, Huang F, Cai A. Spatiotemporal Trends, Sources and Ecological Risks of Heavy Metals in the Surface Sediments of Weitou Bay, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18189562. [PMID: 34574485 PMCID: PMC8472596 DOI: 10.3390/ijerph18189562] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/09/2021] [Accepted: 09/09/2021] [Indexed: 11/30/2022]
Abstract
Heavy metals are extremely harmful materials to marine ecosystems and human health. To determine the anthropogenic contributions and ecological risks in Weitou Bay, China, the spatiotemporal variations in the concentrations of heavy metals in surface sediment were investigated during spring 2008 and 2017. The results indicated that high concentrations of pollutants were generally located near the river mouths and along the coast of industrial areas. Principal component analysis indicated that heavy metal contents were mainly affected by industrial waste drainage, urban development, natural weathering and erosion, and interactions between organic matter and sulfides. The potential ecological risk assessment demonstrated that, in 2008, 82% of the sampling sites were at low risk, while 18% were at moderate risk. The situation had deteriorated slightly by 2017, with 73%, 18%, and 9% of stations in Waytou Bay at low, moderate, and very high risk, respectively. Cd was the most harmful metal, followed by Hg. These two elements accounted for more than 80% of the potential ecological risk index (RI) value. The present work analyzed the source of heavy metals, identified the major pollution elements and high risk areas, and provides guidance for pollution control and ecological restoration in Weitou Bay.
Collapse
|
18
|
Zhai B, Zhang X, Wang L, Zhang Z, Zou L, Sun Z, Jiang Y. Concentration distribution and assessment of heavy metals in surface sediments in the Zhoushan Islands coastal sea, East China Sea. MARINE POLLUTION BULLETIN 2021; 164:112096. [PMID: 33529877 DOI: 10.1016/j.marpolbul.2021.112096] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/18/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
In an effort to assess the potential contamination and determine the environmental risks associated with heavy metals, 51 surface sediment samples (0-4 cm) were collected in the Zhoushan Islands coastal sea of the East China Sea (ECS). The heavy metal concentrations, grain size and total organic carbon (TOC) contents of these surface sediments were comprehensively analyzed. The results showed that the order of the average concentrations of heavy metals is Zn > Cr > Cu > Pb > As > Cd > Hg. Zn, Cr, Cd and Hg exhibit similar distribution and which derived from a common source, however, Cu, Pb and As present different distribution. The metal enrichment factor (EF) and geoaccumulation index (Igeo) values both suggest that Cu and Cd likely pose environmental risks. The results of this study could provide scientific data to authorities in charge of sustainable marine management.
Collapse
Affiliation(s)
- Bin Zhai
- The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Xilin Zhang
- The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
| | - Libo Wang
- The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Zhizhong Zhang
- The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Liang Zou
- The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Zhilei Sun
- The Key Laboratory of Gas Hydrate, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Yubo Jiang
- Yancheng Teachers University, City and Planning Institute, Yancheng 224002, China.
| |
Collapse
|
19
|
Jeong H, Choi JY, Choi DH, Noh JH, Ra K. Heavy metal pollution assessment in coastal sediments and bioaccumulation on seagrass (Enhalus acoroides) of Palau. MARINE POLLUTION BULLETIN 2021; 163:111912. [PMID: 33340908 DOI: 10.1016/j.marpolbul.2020.111912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 05/12/2023]
Abstract
Heavy metals in coastal sediments and seagrass (Enhalus acoroides) were studied to assess the pollution level and to understand the bioaccumulation of metals on different organs. The mean of metal concentrations in sediments were in the following order: Cr > Ni > As>Zn > Cu > Co > Pb > Cd > Hg. The results of principal component analysis indicate that Cr, Ni, Cu, Zn, As and Hg are derived from natural sources but Cd and Pb seems to be of anthropogenic sources. Cr, Ni, Cu, Zn, Cd and Pb in the coastal sediments were at low ecological risk level. As and Hg presented the highest ecological risk among all metals. The mean concentrations of Cr, Ni, Cu, Zn, Cd, and Hg were higher in leaves of E. acoroides than in roots. Significant correlations (p < 0.05) for Cr, Ni, Cu, Zn, and Pb in between sediments and in E. acoroides both leaves and roots. High bioconcentration factor (BCF) were calculated for Zn, Cd, and Hg.
Collapse
Affiliation(s)
- Hyeryeong Jeong
- Marine Environmental Research Center, Korea Institute of Ocean Science and Technology (KIOST), Busan 49111, Republic of Korea; Department of Ocean Science (Oceanography), KIOST School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Jin Young Choi
- Marine Environmental Research Center, Korea Institute of Ocean Science and Technology (KIOST), Busan 49111, Republic of Korea
| | - Dong-Han Choi
- Marine Ecosystem Research Center, Korea Institute of Ocean Science and Technology (KIOST), Busan 49111, Republic of Korea
| | - Jae-Hoon Noh
- Marine Ecosystem Research Center, Korea Institute of Ocean Science and Technology (KIOST), Busan 49111, Republic of Korea
| | - Kongtae Ra
- Marine Environmental Research Center, Korea Institute of Ocean Science and Technology (KIOST), Busan 49111, Republic of Korea; Department of Ocean Science (Oceanography), KIOST School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea.
| |
Collapse
|
20
|
Guevara P, Pérez-Alberti A, Carballo R, Sánchez M, López I, Otero XL. Impact of serpentinized peridotite mine waste on the composition and quality of sediments in the Ría de Ortigueira (Galicia, NW Spain). MARINE POLLUTION BULLETIN 2021; 163:111963. [PMID: 33486404 DOI: 10.1016/j.marpolbul.2020.111963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/07/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
The Ría de Ortigueira is an environmentally well conserved; however, the sediments show high concentrations of toxic elements. In some zones, the concentrations of Ni (60-1080 mg kg-1) and Cr (9-567 mg kg-1) were extremely high, while the concentrations of other toxic elements were within normal ranges. PCA revealed that metal enrichment was due to dumping of waste sludge from a peridotite mine. The study of marine currents showed that the exit of the contaminated waste towards the external zone is restricted by the low energy of the residual currents, and the sludge therefore remains trapped in the internal zones. The potential ecological risk was moderate for all areas of the ría, reaching high values close to the mouth of the river Landoi. Finally, geochemical fractioning showed that most of the metals are associated with Fe oxyhydroxides which can become unstable and release adsorbed or coprecipitated metals, especially Ni.
Collapse
Affiliation(s)
- P Guevara
- CRETUS Institute, Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, Spain; Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas ESPE, Av. General Rumiñahui s/n, P.O. Box 171-5-231B, Sangolquí, Ecuador
| | - A Pérez-Alberti
- CRETUS Institute, Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, Spain
| | - R Carballo
- Área de Ingeniería Hidráulica, EPSE, Univ. de Santiago de Compostela, 27002 Lugo, Spain
| | - M Sánchez
- Área de Ingeniería Hidráulica, EPSE, Univ. de Santiago de Compostela, 27002 Lugo, Spain
| | - I López
- Área de Ingeniería Hidráulica, EPSE, Univ. de Santiago de Compostela, 27002 Lugo, Spain
| | - X L Otero
- CRETUS Institute, Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, Universidade de Santiago de Compostela, Spain; REBUSC, Rede de Estacións Biolóxicas da Universidade de Santiago de Compostela, Facultade de Bioloxía, Universidade de Santiago de Compostela, Galicia, Spain.
| |
Collapse
|
21
|
Ren P, Zhu H, Sun Z, Wang C. Effects of Artificial Islands Construction on the Spatial Distribution and Risk Assessment of Heavy Metals in the Surface Sediments from a Semi-closed Bay (Longkou Bay), China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:44-50. [PMID: 33210211 DOI: 10.1007/s00128-020-03032-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
Artificial islands construction can significantly influence the spatial distribution of heavy metals in inshore sediments. In this study, the distribution and contamination of heavy metals (Cd, Co, Cr, Cu, Ni, Pb, Zn, As and Hg) in inshore sediments of the Longkou Bay and artificial island adjacent areas were investigated in 2013 and 2014, respectively. Results showed that the contents of heavy metals increased in the Longkou Bay and decreased in the west of the artificial island in 2014 compared with 2013. The contamination and potential eco-risk of heavy metals in the sediments were higher in 2014 than those in 2013. Cd and Hg showed a high potential eco-risk in LK02, and other metals were in the lower level. The results indicated that after the construction of artificial islands in the Longkou Bay, the contamination and eco-risk of heavy metals in the sediments markedly increased in the Longkou Bay.
Collapse
Affiliation(s)
- Peng Ren
- Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, China
| | - He Zhu
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China.
| | - Zhigao Sun
- Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou, 350007, China.
| | - Chuanyuan Wang
- Key Laboratory of Coastal Zone Environment Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, People's Republic of China
| |
Collapse
|
22
|
Impacts of parent material on distributions of potentially toxic elements in soils from Pearl River Delta in South China. Sci Rep 2020; 10:17394. [PMID: 33060719 PMCID: PMC7567083 DOI: 10.1038/s41598-020-74490-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 09/22/2020] [Indexed: 11/21/2022] Open
Abstract
Assessing the impacts of parent material on distributions of potentially toxic elements (PTEs) in soils has significant consequences in the apportionment of their sources. In this study, geochemical distributions and sources of PTEs in the soils developed in quaternary sediments and granite plutons of Pearl River Delta (PRD), South China, were investigated. The results indicate that there are systematic differences between the concentrations of oxides and PTEs in the soils developed in these two parent materials. The parent material predominantly determines the element distributions in the soils. The PTEs of the deep soils developed in quaternary sediments originated mainly from mafic, felsic, and carbonate sources materials as well as polymetallic deposits. For the deep soils developed in granite plutons, the element associations are governed mainly by their geochemical affinities and behaviors and the mineral compositions of granite plutons. Anthropogenic activities impact the features of the PTEs in the surface soils of PRD. However, superimposed regional-scale pollution was found to not hide the effect of the parent material on the distribution of PTEs in the surface soils.
Collapse
|
23
|
Zhang M, Sun X, Xu J. Heavy metal pollution in the East China Sea: A review. MARINE POLLUTION BULLETIN 2020; 159:111473. [PMID: 32853847 DOI: 10.1016/j.marpolbul.2020.111473] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/10/2020] [Accepted: 07/10/2020] [Indexed: 06/11/2023]
Abstract
Due to rapid urbanization and industrialization, heavy metal (HM) pollution in coastal areas of the East China Sea (ECS) has attracted extensive attention. This article attempts to review recent studies on the temporal and spatial distributions, ecological risks, and possible sources of HMs in typical bays and estuaries of ECS. The levels of HMs are closely related to local economic development and local characteristics. The anthropogenic activities and the particle size of sediments are important factors affecting the distribution of HMs. During the late 1970s to the 1990s, HMs levels in the Yangtze Estuary (YRE) sediments showed an upward tendency due to the increased emissions. However, HMs levels in the early 2000s were lower than that in the late 1970s to the mid-1990s. Cd caused serious pollution and brought potential ecological risks in the Yangtze Estuary, Hangzhou Bay (HZB), Sanmen Bay (SMB), and Quanzhou Bay (QZB). In Fujian province of China, the Quanzhou Bay was heavily polluted by HMs and high contents of HMs were found in biota. Among different species, molluscs in the coastal areas of ECS have the highest levels of HMs exceeding safety limits.
Collapse
Affiliation(s)
- Mei Zhang
- School of Marine Sciences, Ningbo University, Ningbo 315832, China; Ningbo Institute of Oceanography, Ningbo 315832, China
| | - Xian Sun
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai Key Laboratory of Marine Bioresources and Environment, Guangdong Provincial Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Jilin Xu
- School of Marine Sciences, Ningbo University, Ningbo 315832, China.
| |
Collapse
|
24
|
Lu G, Pan K, Zhu A, Dong Y, Wang WX. Spatial-temporal variations and trends predication of trace metals in oysters from the Pearl River Estuary of China during 2011-2018. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114812. [PMID: 32559869 DOI: 10.1016/j.envpol.2020.114812] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/20/2020] [Accepted: 05/12/2020] [Indexed: 06/11/2023]
Abstract
Estuaries are often considered to be the filters of pollutants from the land-derived outflows of freshwater to open seawater. Oysters are efficient bioaccumulators of metals in the estuarine environment, however, little information is available on the long-term tissue variability of metals in a large dynamic estuary under complex urbanized and anthropogenic impacts. Thus, an eight-year biomonitoring study of metals (Ag, Cd, Cr, Cu, Ni, Pb, and Zn) in the oysters from 10 sites were carried out to reveal the highly spatial-temporal variations in the Pearl River Estuary (PRE) of China during 2011-2018. Cd, Cu, and Zn in oysters were significantly correlated with the dissolved metals in seawater. Geographically, Ag, Cd, and Cr were higher in the western sites, and Cu, Ni, and Zn were higher in the eastern sites. High seasonal variations of Ag, Cu, and Zn were found in the wet season. The calculated annual change rates (vc) of Cd, Cu, Zn, Ag, Pb, Ni, and Cr in the oysters were -1.1, -45, -48, 0.338, -0.216, -2.2, and -2.8 μg/g/y, respectively. If such decreasing rates of vc (or natural logarithm rates v) were maintained, Cd, Cu, Zn, Pb, and Ni in oysters from PRE would be expected to recover to the national 50% concentrations in years 2022 (2024), 2045 (2079), 2073 (2110), 2021 (2023), and 2019 (2020), respectively. Long-term series observations of metals in organisms reflected the real bioavailability of metals, pollution status, and trends for environmental management and control in a large dynamic and contaminated estuary.
Collapse
Affiliation(s)
- Guangyuan Lu
- Marine Environmental Laboratory, Shenzhen Research Institute, HKUST, Shenzhen, 518057, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Ke Pan
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
| | - Aijia Zhu
- South China Sea Environmental Monitoring Center, State Oceanic Administration, Ministry of Natural Resources, Guangzhou, 510300, China
| | - Yanhong Dong
- South China Sea Environmental Monitoring Center, State Oceanic Administration, Ministry of Natural Resources, Guangzhou, 510300, China
| | - Wen-Xiong Wang
- Marine Environmental Laboratory, Shenzhen Research Institute, HKUST, Shenzhen, 518057, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China; School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China.
| |
Collapse
|
25
|
Wang X, Fu R, Li H, Zhang Y, Lu M, Xiao K, Zhang X, Zheng C, Xiong Y. Heavy metal contamination in surface sediments: A comprehensive, large-scale evaluation for the Bohai Sea, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:113986. [PMID: 31995779 DOI: 10.1016/j.envpol.2020.113986] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/08/2020] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Heavy metal contamination in the Bohai Sea (China) has been the focus of many studies, but most of them only focused on local pollution levels and thus lacked high spatial resolution for the whole sea. In this study, heavy metals (i.e., As, Cr, Cu, Cd, Pb, Zn, and Fe) in surface sediments were analyzed to assess the spatio-temporal pollution conditions of the Bohai Sea, an important coastal environment consisting of Bohai Bay, Laizhou Bay, and Liaodong Bay. The results indicated that the heavy metal concentration in the sediments was in the range of 6.43-32.18 mg/kg for As, 14.90-58.07 mg/kg for Cr, 3.90-27.19 mg/kg for Cu, 0.04-0.27 mg/kg for Cd, 11.09-30.95 mg/kg for Pb, 18.76-65.58 mg/kg for Zn, and 0.78%-2.55% for Fe. The distribution of heavy metals revealed that the concentrations were relatively low in Laizhou Bay, very high in the northwest coastal region of the Bohai Sea, and decreased from near-shore to off-shore areas. Moreover, both the enrichment factor and geo-accumulation index demonstrated that there was no contamination to be found for Cr, Cu, Zn in the region and a slight to moderate pollution of As, Cd, and Pb. Cd and As presented considerable potential ecological risk as a result of their high toxicity. The potential ecological risk index (RI) suggested that a third of the areas (northwest coastal area of the Bohai Sea) has moderate ecological risk. The risk area was generally decreased as offshore distance increased, which suggested that the contamination and risk of heavy metals are influenced by anthropogenic activities.
Collapse
Affiliation(s)
- Xuejing Wang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Renlong Fu
- Beijing Geotechnical and Investigation Engineering Institute, Beijing, 100086, China
| | - Hailong Li
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 100083, China.
| | - Yan Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 100083, China; MOE Key Laboratory of Groundwater Circulation & Environment Evolution, School of Water Resources and Environment, China University of Geosciences-Beijing, Beijing, 100083, China
| | - Meiqing Lu
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Kai Xiao
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiaolang Zhang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chunmiao Zheng
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ying Xiong
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| |
Collapse
|
26
|
Ding X, Ye S, Laws EA, Mozdzer TJ, Yuan H, Zhao G, Yang S, He L, Wang J. The concentration distribution and pollution assessment of heavy metals in surface sediments of the Bohai Bay, China. MARINE POLLUTION BULLETIN 2019; 149:110497. [PMID: 31430666 DOI: 10.1016/j.marpolbul.2019.110497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 07/25/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
Three hundred five surface sediment samples from the Bohai Bay in northeastern China were examined for grain size, organic carbon (Corg) concentration, and concentrations of heavy metals (Pb, Zn, Cu, As, Cr, Cd, and Hg). Average metal concentrations were 33 mg/kg (Cu), 27 mg/kg (Pb), 95 mg/kg (Zn), 75 mg/kg (Cr), 0.3 mg/kg (Cd), 13 mg/kg (As), and 72 μg/kg (Hg). In most cases, these concentrations were lower than the China Marine Sediment Quality criteria. Enrichment factors, however, suggested moderate to strong Cd and Hg contamination of the Bohai Bay. The fact that 68.6% of Pollution Load Index (PLI) values exceeded 2 demonstrated strong pollution of the Bohai Bay, Hg contributed the most to the PLI.
Collapse
Affiliation(s)
- Xigui Ding
- Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China; Shandong University of Science and Technology, Qingdao 266590, China
| | - Siyuan Ye
- Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China; Shandong University of Science and Technology, Qingdao 266590, China.
| | - Edward A Laws
- Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; School of the Coast & Environment, Department of Environmental Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Thomas J Mozdzer
- Department of Biology, Bryn Mawr College, 101 N Merion Ave, Bryn Mawr, PA 19010, USA
| | - Hongming Yuan
- Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
| | - Guangming Zhao
- Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
| | - Shixiong Yang
- Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
| | - Lei He
- Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
| | - Jin Wang
- Key Laboratory of Coastal Wetland Biogeosciences, China Geological Survey, Qingdao Institute of Marine Geology, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
| |
Collapse
|
27
|
Zhao G, Ye S, Yuan H, Ding X, Wang J, Laws EA. Surface sediment properties and heavy metal contamination assessment in river sediments of the Pearl River Delta, China. MARINE POLLUTION BULLETIN 2018; 136:300-308. [PMID: 30509811 DOI: 10.1016/j.marpolbul.2018.09.035] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/30/2018] [Accepted: 09/18/2018] [Indexed: 06/09/2023]
Abstract
Concentrations of arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), lead (Pb), and zinc (Zn), grain sizes, and concentrations of organic carbon (Corg) were measured in 323 river sediment samples from the Pearl River Delta (PRD). Results showed that the heavy metal concentrations in the sediments ranged from 1.6-93 mg/kg for As, 0.04-9.3 mg/kg for Cd, 2-315 mg/kg for Cr, 1.1-352 mg/kg for Cu, 0.01-0.67 mg/kg for Hg, 11-221 mg/kg for Pb, and 11-1234 mg/kg for Zn. The highest values of As, Cr, Cu, Hg, Pb, and Zn appeared in the Beijiang River, whereas Cd was high in the Xijiang River. The overall sediment quality in the area with respect to metal concentrations generally met the primary standard criteria of China (Marine Sediment Quality), except for Cd and Cu. The spatial distributions of the heavy metals were influenced by both grain sizes and Corg concentrations. The Igeo geo-accumulation index indicated that there was no significant Cr, Cu, Hg, or Zn pollution, slight to moderate pollution by As and Pb, and moderate Cd pollution in the study area. Spatial distributions of an eco-toxicological index based on probable effect levels indicated that there was a 21% probability that the combination of the seven metals was exerting a toxic stress in the PRD river sediments.
Collapse
Affiliation(s)
- Guangming Zhao
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China; Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Siyuan Ye
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China.
| | - Hongming Yuan
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
| | - Xigui Ding
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
| | - Jin Wang
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
| | - Edward A Laws
- College of the Coast & Environment, Department of Environmental Sciences, Louisiana State University, Baton Rouge, LA 70803-4110, USA
| |
Collapse
|