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Santos-Echeandía J, Bernárdez P, Sánchez-Marín P. Trace metal level variation under strong wind conditions and sediment resuspension in the waters of a coastal lagoon highly impacted by mining activities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167806. [PMID: 37838048 DOI: 10.1016/j.scitotenv.2023.167806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/02/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
The levels of metals in the waters of the Mar Menor lagoon are higher in the southern than in the northern zone both in the dissolved (As: 1.78 μg L-1 north vs 1.86 μg L-1 south; Cd: 0.020 μg L-1 vs 0.055 μg L-1; Pb: 0. 686 μg L-1 vs 2.714 μg L-1; Zn: 3.06 μg L-1 vs 10.2 μg L-1) as in the particulate fraction (As: 13.6 μg g-1 north vs 27.3 μg g-1 south; Cd: 0.510 μg g-1 vs 2.11 μg g-1; Pb: 146 μg g-1 vs 575 μg g-1; Zn: 266 μg g-1 vs 729 μg g-1). This difference is associated to the influence of historical and recent inputs from the Sierra Minera Cartagena -La Unión located south of the lagoon. Strong winds cause sediment resuspension in this shallow lagoon, increasing metal levels in the dissolved (twofold) and especially in the particulate fraction (threefold) because the resuspended sediments are rich in metals. Distribution among dissolved and particulate fraction is determined by the chemistry of each element and salinity. This increase causes the levels to reach limits very close to those established by the Water Framework Directive, especially in the case of lead, whose annual average level of 1.23 μg L-1 is very close to the 1.3 μg L-1 established in the Directive. Therefore, slight change in environmental variables could make Pb levels to exceed legal limits. Future work should focus on investigating how unique environmental events, enhanced by global change, affect metal cycles in highly anthropised coastal areas.
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Affiliation(s)
- Juan Santos-Echeandía
- Centro Oceanografico de Vigo (COV-IEO), CSIC, Subida a Radio Faro, s/n, 36390 Vigo, Spain.
| | - Patricia Bernárdez
- Centro Oceanografico de Vigo (COV-IEO), CSIC, Subida a Radio Faro, s/n, 36390 Vigo, Spain
| | - Paula Sánchez-Marín
- Centro Oceanografico de Vigo (COV-IEO), CSIC, Subida a Radio Faro, s/n, 36390 Vigo, Spain
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2
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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.
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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
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Chen S, Wu P, Zha X, Zhou B, Liu J, Long E. Arsenic and Heavy Metals in Sediments Affected by Typical Gold Mining Areas in Southwest China: Accumulation, Sources and Ecological Risks. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1432. [PMID: 36674187 PMCID: PMC9859441 DOI: 10.3390/ijerph20021432] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Gold mining is associated with serious heavy metal pollution problems. However, the studies on such pollution caused by gold mining in specific geological environments and extraction processes remain insufficient. This study investigated the accumulation, fractions, sources and influencing factors of arsenic and heavy metals in the sediments from a gold mine area in Southwest China and also assessed their pollution and ecological risks. During gold mining, As, Sb, Zn, and Cd in the sediments were affected, and their accumulation and chemical activity were relatively high. Gold mining is the main source of As, Sb, Zn and Cd accumulation in sediments (over 40.6%). Some influential factors cannot be ignored, i.e., water transport, local lithology, proportion of mild acido-soluble fraction (F1) and pH value. In addition, arsenic and most tested heavy metals have different pollution and ecological risks, especially As and Sb. Compared with the other gold mining areas, the arsenic and the heavy metal sediments in the area of this study have higher pollution and ecological risks. The results of this study show that the local government must monitor potential environmental hazards from As and Sb pollution to prevent their adverse effects on human beings. This study also provides suggestions on water protection in the same type of gold-mining areas.
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Affiliation(s)
- Sirui Chen
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
- College Key Laboratory of Karst Geological Resources and Environment of Ministry of Education, Guiyang 550025, China
| | - Pan Wu
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
- College Key Laboratory of Karst Geological Resources and Environment of Ministry of Education, Guiyang 550025, China
| | - Xuefang Zha
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
- College Key Laboratory of Karst Geological Resources and Environment of Ministry of Education, Guiyang 550025, China
| | - Binghuang Zhou
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
- College Key Laboratory of Karst Geological Resources and Environment of Ministry of Education, Guiyang 550025, China
| | - Jingbin Liu
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
- College Key Laboratory of Karst Geological Resources and Environment of Ministry of Education, Guiyang 550025, China
| | - En Long
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
- College Key Laboratory of Karst Geological Resources and Environment of Ministry of Education, Guiyang 550025, China
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4
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Rios-Fuster B, Alomar C, Deudero S. Elucidating the consequences of the co-exposure of microplastics jointly to other pollutants in bivalves: A review. ENVIRONMENTAL RESEARCH 2023; 216:114560. [PMID: 36270530 DOI: 10.1016/j.envres.2022.114560] [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: 11/24/2021] [Revised: 09/04/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
The marine environment has numerous impacts related to anthropogenic activities including pollution. Abundances of microplastics (MPs) and other pollutants are continuously increasing in the marine environment, resulting in a complex mixture of contaminants affecting biota. In order to understand the consequences, a review of studies analyzing combined effects of MPs and other types of pollutants in bivalves has been conducted as species in this group have been considered as sentinel and bioindicators. Regarding studies reviewed, histological analyses give evidence that MPs can be located in the haemolymph, gills and gonads, as well as in digestive glands in the intestinal lumen, epithelium and tubules, demonstrating that the entire body of bivalves is affected by MPs. Moreover, DNA strand breaks represent the most relevant form of damage caused by the enhanced production of reactive oxygen species in response to MPs exposure. The role of MPs as vectors of pollutants and the ability of polymers to adsorb different compounds have also been considered in this review highlighting a high variability of results. In this sense, toxic impacts associated to MPs exposure were found to significantly increase with the co-presence of antibiotics or petroleum hydrocarbons amongst other pollutants. In addition, bioaccumulation processes of pollutants (PAHs, metals and others) have been affected by the co-presence with MPs. Histological, genetic and physiological alterations are the most reported damages, and the degree of harm seems to be correlated with the concentration and size of MP and with the type of pollutant.
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Affiliation(s)
- Beatriz Rios-Fuster
- Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n, 07015, Palma de Mallorca, Spain.
| | - Carme Alomar
- Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n, 07015, Palma de Mallorca, Spain
| | - Salud Deudero
- Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n, 07015, Palma de Mallorca, Spain
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5
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Besada V, Bellas J, Sánchez-Marín P, Bernárdez P, Schultze F. Metal and metalloid pollution in shelf sediments from the Gulf of Cádiz (Southwest Spain): Long-lasting effects of a historical mining area. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 295:118675. [PMID: 34906592 DOI: 10.1016/j.envpol.2021.118675] [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: 08/05/2021] [Revised: 11/22/2021] [Accepted: 12/10/2021] [Indexed: 06/14/2023]
Abstract
The Gulf of Cádiz is an area historically affected by acid mine drainage and also by the discharge of two important rivers, the Guadiana and the Guadalquivir. Metal and metalloid (As, Cd, Hg, Pb, Zn, Cu, Cr, Ni, Mn, Fe, Al and Li) concentrations were measured in 33 surface sediment samples, collected in the continental shelf, inside the Ría de Huelva and the Bay of Cádiz, to assess the metal pollution status of this area. Geographical distribution was identified for different groups of metals: Cu, Cd, Zn, Hg and As were mainly associated with discharges of the Tinto and Odiel rivers, which have been historically affected by mining, into the Ría de Huelva. Sediments inside this Ría presented the highest concentrations of the whole area for these metals, and enrichment factors revealed that Hg and Cu pollution spread up to 20 km away from the mouth of this Ría, into the continental shelf. On the contrary, the distribution of Ni, Cr and Mn did not show a clear gradient with distance from a pollution source, and was mainly explained by geochemical factors, such as their association with fine materials. The comparison of metal concentrations with sediment quality guidelines, predicts that adverse ecological effects due to the metal pollution may be occurring in a group of stations located in the northwest corner of the studied area. Local background levels for metals in the Gulf of Cádiz were proposed and the information obtained will be useful to identify those areas where sampling must be intensified in ongoing Marine Strategy Framework Directive (MSFD) monitoring programs. These results corroborate that metal pollution is still a serious problem in the Gulf of Cádiz.
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Affiliation(s)
- V Besada
- Centro Oceanográfico de Vigo (IEO, CSIC), Subida a Radio Faro 50, 36390, Vigo, Spain.
| | - J Bellas
- Centro Oceanográfico de Vigo (IEO, CSIC), Subida a Radio Faro 50, 36390, Vigo, Spain
| | - P Sánchez-Marín
- Centro Oceanográfico de Vigo (IEO, CSIC), Subida a Radio Faro 50, 36390, Vigo, Spain
| | - P Bernárdez
- Centro Oceanográfico de Vigo (IEO, CSIC), Subida a Radio Faro 50, 36390, Vigo, Spain
| | - F Schultze
- Centro Oceanográfico de Vigo (IEO, CSIC), Subida a Radio Faro 50, 36390, Vigo, Spain
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6
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Pais-Costa AJ, Sánchez MI, Taggart MA, Green AJ, Hortas F, Vinagre PA, Marques JC, Martinez-Haro M. Trace element bioaccumulation in hypersaline ecosystems and implications of a global invasion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149349. [PMID: 34391156 DOI: 10.1016/j.scitotenv.2021.149349] [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: 04/09/2021] [Revised: 07/15/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Hypersaline ecosystems are under increasing threat due to anthropogenic pressures such as environmental pollution and biological invasions. Here we address the ecotoxicological implications of the Artemia franciscana (Crustacea) invasion in saltpans of southern Spain. This North American species is causing the extinction of native Artemia populations in many parts of the globe. The bioaccumulation of trace elements (As, Cd, Cu, Co, Cr, Mn, Ni, Pb and Zn) in native populations (A. parthenogenetica) from Cabo de Gata and Odiel saltpans and invasive Artemia from Cádiz saltpan was studied at different salinities. Furthermore, in Odiel, the most polluted study site, we also analysed the bioaccumulation of trace elements by Chironomus salinarius larvae (Diptera) and Ochthebius notabilis adults (Coleoptera). High levels of trace elements were detected in the studied saltpans, many of them exceeding the recommended threshold guidelines for aquatic life. Bioaccumulation of trace elements by Artemia was lowest at the highest salinity. The invasive A. franciscana showed higher potential to bioaccumulate trace elements than its native counterpart (in particular for As, Cd, Ni and Cr). In Odiel, O. notabilis stood out as showing the highest potential to bioaccumulate As and Cu. Results showed that the shift from a native to an alien Artemia species with a higher bioaccumulation capacity may increase the transfer of trace elements in hypersaline food webs, especially for waterbirds that depend on Artemia as food. Thus, our study identifies an indirect impact of the Artemia franciscana invasion that had not previously been recognised.
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Affiliation(s)
- Antónia Juliana Pais-Costa
- University of Coimbra, Marine and Environmental Sciences Centre (MARE), Department of Life Sciences, 3004-517 Coimbra, Portugal.
| | - Marta I Sánchez
- Wetland Ecology Department, Estación Biológica de Doñana, EBD-CSIC, 41092 Seville, Spain; Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Avda. Reina Mercedes s/n, 41012 Seville, Spain
| | - Mark A Taggart
- Environmental Research Institute, University of the Highlands and Islands, Thurso, Scotland KW14 7JD, UK
| | - Andy J Green
- Wetland Ecology Department, Estación Biológica de Doñana, EBD-CSIC, 41092 Seville, Spain
| | - Francisco Hortas
- Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional/Global del Mar (CEI·MAR), Universidad de Cádiz, Av. República Saharaui s/n, 11510 Puerto Real, Cádiz, Spain
| | | | - João Carlos Marques
- University of Coimbra, Marine and Environmental Sciences Centre (MARE), Department of Life Sciences, 3004-517 Coimbra, Portugal
| | - Mónica Martinez-Haro
- Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal (IRIAF), Centro de Investigación Agroambiental El Chaparrillo, Ciudad Real, Spain
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Paradis S, Lo Iacono C, Masqué P, Puig P, Palanques A, Russo T. Evidence of large increases in sedimentation rates due to fish trawling in submarine canyons of the Gulf of Palermo (SW Mediterranean). MARINE POLLUTION BULLETIN 2021; 172:112861. [PMID: 34523427 DOI: 10.1016/j.marpolbul.2021.112861] [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: 03/12/2021] [Revised: 08/10/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
Bottom trawling in submarine canyons can affect their natural sedimentation rates, but studies addressing this issue are still scarce. In the Gulf of Palermo (SW Mediterranean), bottom trawling occurs on the slope around Oreto, Arenella and Eleuterio canyons. Analyses of excess 210Pb concentrations and grain size fractions in sediment cores from their canyon axes revealed that sedimentation rates and silt contents increased in all canyons in the 1980s, due to the expansion of more powerful trawlers (>500 HP) to deeper fishing grounds. In Eleuterio and Arenella canyons, sedimentation rates increased by an order of magnitude (0.1-1.4 cm·yr-1), whereas they increased less (0.1-0.7 cm·yr-1) in Oreto Canyon, since the enhanced trawling-derived sediment fluxes into this canyon are affected by sediment resuspension from trawling along its axis. Considering the global expansion of bottom trawling, we anticipate similar alterations in other trawled canyons, with ecological consequences that should be addressed by management strategies.
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Affiliation(s)
- Sarah Paradis
- Institute of Environmental Science and Technology (ICTA) and Physics Department, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain; Geological Institute, Department of Earth Sciences, ETH Zürich, 8092 Zürich, Switzerland.
| | - Claudio Lo Iacono
- Marine Sciences Institute, Consejo Superior de Investigaciones Científicas, Barcelona 08003, Spain
| | - Pere Masqué
- Institute of Environmental Science and Technology (ICTA) and Physics Department, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain; School of Natural Sciences, Centre for Marine Ecosystems Research, Edith Cowan University, Joondalup, WA 6027, Australia; International Atomic Energy Agency, 4a Quai Antoine 1er, 98000 Principality of Monaco, Monaco
| | - Pere Puig
- Marine Sciences Institute, Consejo Superior de Investigaciones Científicas, Barcelona 08003, Spain
| | - Albert Palanques
- Marine Sciences Institute, Consejo Superior de Investigaciones Científicas, Barcelona 08003, Spain
| | - Tommaso Russo
- Laboratory of Experimental Ecology and Aquaculture, Department of Biology, University of Rome Tor Vergata, Rome 00133, Italy
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Wang C, Wang Y, Liu P, Sun Y, Song Z, Hu X. Characteristics of bacterial community structure and function associated with nutrients and heavy metals in coastal aquaculture area. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 275:116639. [PMID: 33578318 DOI: 10.1016/j.envpol.2021.116639] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 05/20/2023]
Abstract
Coastal aquaculture area has become one of the critical zones that are more susceptible to the influence of human activity. Many aquaculture operations invariably result in the accumulation of nutrients and heavy metals in the coastal ecosystem. Our study investigated sediment bacterial community structure and function across 23 sites under the influence of nutrients and heavy metals in the coastal aquaculture area. The habitat environment of the sediment was described by analyzing physicochemical characteristics. Sediment bacterial community structure and diversity were investigated by 16S rRNA sequencing. The sequencing data presented that Proteobacteria, Bacteroidetes, Planctomycetes, Acidobacteria and Chloroflexi were predominant at phylum level. Variations in the bacterial community composition and diversity were significant (P < 0.01) among different groups (according to the distance from the bank side) which indicated that specific environmental conditions had shaped distinct bacterial community. Specifically, bacterial diversity and composition were significantly influenced by the temperature, salinity, pH, dissolved oxygen (DO), TOC, TON, nitrite, nitrate and heavy metals (P < 0.05). Results related to functional prediction demonstrated that carbon, nitrogen and sulfur metabolism were the dominant processes in the coastal aquaculture area. In the meantime, the potential pathogens such as Arcobacter was found in site S3, which indicated the possible threat to the cultured species in this area. Overall, variations in bacterial communities caused by nutrients and heavy metals can affect biogeochemical cycles, which may provide an indication for the protection of coastal aquaculture environments.
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Affiliation(s)
- Caixia Wang
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264403, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266237, China
| | - Yibo Wang
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264403, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Pengyuan Liu
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264403, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanyu Sun
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264403, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zenglei Song
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264403, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoke Hu
- Key Laboratory of Coastal Biology and Bioresource Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264403, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, 266237, China.
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9
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Corella JP, Sierra MJ, Garralón A, Millán R, Rodríguez-Alonso J, Mata MP, de Vera AV, Moreno A, González-Sampériz P, Duval B, Amouroux D, Vivez P, Cuevas CA, Adame JA, Wilhelm B, Saiz-Lopez A, Valero-Garcés BL. Recent and historical pollution legacy in high altitude Lake Marboré (Central Pyrenees): A record of mining and smelting since pre-Roman times in the Iberian Peninsula. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 751:141557. [PMID: 32882549 DOI: 10.1016/j.scitotenv.2020.141557] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 08/05/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
We have analyzed potential harmful trace elements (PHTE; Pb, Hg, Zn, As and Cu) on sediment cores retrieved from lake Marboré (LM) (2612 m a.s.l, 42°41'N; 0° 2'E). PHTE variability allowed us to reconstruct the timing and magnitude of trace metal pollutants fluxes over the last 3000 years in the Central Pyrenees. A statistical treatment of the dataset (PCA) enabled us to discern the depositional processes of PHTE, that reach the lake via direct atmospheric deposition. Indeed, the location of LM above the atmospheric boundary layer makes this lake an exceptional site to record the long-range transport of atmospheric pollutants in the free troposphere. Air masses back-trajectories analyses enabled us to understand the transport pathways of atmospheric pollutants while lead isotopic analyses contributed to evaluate the source areas of metal pollution in SW Europe during the Late Holocene. PHTE variability, shows a clear agreement with the main exploitation phases of metal resources in Southern Europe during the Pre-Industrial Period. We observed an abrupt lead enrichment from 20 to 375 yrs CE mostly associated to silver and lead mining and smelting practices in Southern Iberia during the Roman Empire. This geochemical data suggests that regional atmospheric metal pollution during the Roman times rivalled the Industrial Period. PHTE also increased during the High and Late Middle Ages (10-15th centuries) associated to a reactivation of mining and metallurgy activities in high altitude Pyrenean mining sites during climate amelioration phases. Atmospheric mercury deposition in the Lake Marboré record mostly reflects global emissions, particularly from Almadén mines (central Spain) and slightly fluctuates during the last three millennia with a significant increase during the last five centuries. Our findings reveal a strong mining-related pollution legacy in alpine lakes and watersheds that needs to be considered in management plans for mountain ecosystems as global warming and human pressure effects may contribute to their future degradation.
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Affiliation(s)
- J P Corella
- Universite Grenoble Alpes, CNRS, IRD, IGE, 38000 Grenoble, France; CIEMAT - Environmental Department (DMA), Avenida Complutense 40, E-28040 Madrid, Spain.
| | - M J Sierra
- CIEMAT - Environmental Department (DMA), Avenida Complutense 40, E-28040 Madrid, Spain
| | - A Garralón
- CIEMAT - Environmental Department (DMA), Avenida Complutense 40, E-28040 Madrid, Spain
| | - R Millán
- CIEMAT - Environmental Department (DMA), Avenida Complutense 40, E-28040 Madrid, Spain
| | - J Rodríguez-Alonso
- CIEMAT - Environmental Department (DMA), Avenida Complutense 40, E-28040 Madrid, Spain
| | - M P Mata
- Instituto Geológico y Minero de España, Rios Rosas 23, 28003 Madrid, Spain
| | - A Vicente de Vera
- Pyrenean Institute of Ecology, CSIC, Avda Montañana 1005, 50059 Zaragoza, Spain
| | - A Moreno
- Pyrenean Institute of Ecology, CSIC, Avda Montañana 1005, 50059 Zaragoza, Spain
| | - P González-Sampériz
- Pyrenean Institute of Ecology, CSIC, Avda Montañana 1005, 50059 Zaragoza, Spain
| | - B Duval
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les matériaux, Pau, France, 64000 Pau, France
| | - D Amouroux
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les matériaux, Pau, France, 64000 Pau, France
| | - P Vivez
- Centro de Estudios de Sobrarbe, Sociedad Española para la Defensa del Patrimonio Geológico Y Minero, Plaza España, 22340 Boltaña, Huesca, Spain
| | - C A Cuevas
- Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, CSIC, Serrano 119, 28006 Madrid, Spain
| | - J A Adame
- Atmospheric Sounding Station, El Arenosillo Observatory, Atmospheric Research and Instrumentation Branch, National Institute for Aerospace Technology (INTA), Mazagón, Huelva, Spain
| | - B Wilhelm
- Universite Grenoble Alpes, CNRS, IRD, IGE, 38000 Grenoble, France
| | - A Saiz-Lopez
- Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Rocasolano, CSIC, Serrano 119, 28006 Madrid, Spain
| | - B L Valero-Garcés
- Pyrenean Institute of Ecology, CSIC, Avda Montañana 1005, 50059 Zaragoza, Spain
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10
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Luo X, Shen M, Huang Z, Chen Z, Chen Z, Lin B, Cui L. Efficient removal of Pb(II) through recycled biochar-mineral composite from the coagulation sludge of swine wastewater. ENVIRONMENTAL RESEARCH 2020; 190:110014. [PMID: 32768476 DOI: 10.1016/j.envres.2020.110014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 07/26/2020] [Accepted: 07/26/2020] [Indexed: 06/11/2023]
Abstract
Zeolite-Mg/Fe chloride dual enhanced coagulation is a cost-effective method for advanced treatment of swine wastewater, but the sludge generated after the enhanced coagulation remains to be a problem. In this study, the precipitate from a swine wastewater coagulation unit was regenerated by pyrolysis treatment in an O2-limited environment to develop a high efficient adsorbent (biochar-mineral composite, BMC) for the removal of Pb(II) from wastewater. SEM images indicate that complex Mg/Fe oxides and sludge biochar gathered around zeolite particles. Effects of different influencing factors such as Pb(II) initial concentration, pH, adsorption time and ion concentration on the adsorption performance were investigated. The results show that the Langmuir isotherm model can better express the adsorption of Pb(II) on BMC than Freundlich model and Temkin model. BMC pyrolyzed at 500 °C showed the maximum adsorption capacity of 450.58 mg/g under experimental condition of 25 °C, 100 mg/L Pb(II) initial concentration and the initial pH of 5.6. The adsorption mechanisms on BMC mainly include ion exchange, electrostatic interaction. Therefore, it is a cost-effective and environmental-friendly strategy to obtain biochar-mineral composite from recycled sludge, which can efficiently remove Pb(II) from wastewater.
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Affiliation(s)
- Xuewen Luo
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Minxian Shen
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Zhujian Huang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, China; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, Hunan, 410125, China.
| | - Zihao Chen
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Ziying Chen
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Bingjia Lin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Lihua Cui
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China; Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, China; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, Hunan, 410125, China
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11
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Laiz I, Plecha S, Teles-Machado A, González-Ortegón E, Sánchez-Quiles D, Cobelo-García A, Roque D, Peliz A, Sánchez-Leal RF, Tovar-Sánchez A. The role of the Gulf of Cadiz circulation in the redistribution of trace metals between the Atlantic Ocean and the Mediterranean Sea. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 719:134964. [PMID: 31837879 DOI: 10.1016/j.scitotenv.2019.134964] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/11/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
The GoC shelf waters present much higher concentrations of dissolved Cu, Cd, and Zn than other coastal areas, constituting an important source of these elements onto its neighbouring basins, i.e., the Atlantic Ocean and the Mediterranean Sea. In this study we assessed the role of the GoC surface currents in the trace metals transport. For this purpose, ten dissolved (<0.22 µm) trace metals were sampled (Ag, Cd, Co, Cu, Fe, Mo, Ni, Pb, Zn, V) along the GoC continental shelf, and their spatial and temporal distribution was interpreted according to the surface circulation. Results show that the complex surface circulation over the shelf confines the metals concentration mainly along the inner shelf and determines their transport patterns: under southeastward currents, Cd, Co, Cu, Ni, and Pb are transported toward the Mediterranean Sea; under northwestward countercurrents, Cd, Co, Cu, Fe, Ni, and Zn are transported toward the southern and, occasionally, the western Portuguese shelf; under variable currents, Ag, Cd, Co, Cu, Fe, Pb, and Zn tend to accumulate near their source. Considering that some of these metals have not been analysed before in this region (Ag, Mo, V), or that the spatial distribution of certain metals (Ag, Fe, Mo, Pb, V) has not been interpreted in terms of the ocean circulation, this work could be considered as a baseline study for future comparisons.
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Affiliation(s)
- I Laiz
- Department of Applied Physics, Instituto Universitario de Investigación Marina (INMAR), University of Cadiz, Campus de Excelencia Internacional/Global del Mar (CEI·MAR), E-11510 Puerto Real, Cadiz, Spain.
| | - S Plecha
- Instituto Dom Luiz, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - A Teles-Machado
- Instituto Dom Luiz, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - E González-Ortegón
- Instituto de Ciencias Marinas de Andalucía ICMAN-CSIC, E-11510 Puerto Real, Cadiz, Spain; Campus de Excelencia Internacional del Mar (CEIMAR), Spain.
| | - D Sánchez-Quiles
- Instituto de Ciencias Marinas de Andalucía ICMAN-CSIC, E-11510 Puerto Real, Cadiz, Spain.
| | - A Cobelo-García
- Instituto de Investigaciones Marinas IIM-CSIC, 36208 Vigo, Pontevedra, Spain.
| | - D Roque
- Instituto de Ciencias Marinas de Andalucía ICMAN-CSIC, E-11510 Puerto Real, Cadiz, Spain.
| | - A Peliz
- Instituto Dom Luiz, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - R F Sánchez-Leal
- Spanish Institute of Oceanography, Cadiz Oceanographic Centre, 11006 Cadiz, Spain.
| | - A Tovar-Sánchez
- Instituto de Ciencias Marinas de Andalucía ICMAN-CSIC, E-11510 Puerto Real, Cadiz, Spain.
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12
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Cerdà-Domènech M, Frigola J, Sanchez-Vidal A, Canals M. Calibrating high resolution XRF core scanner data to obtain absolute metal concentrations in highly polluted marine deposits after two case studies off Portmán Bay and Barcelona, Spain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 717:134778. [PMID: 31843305 DOI: 10.1016/j.scitotenv.2019.134778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/30/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
X-ray fluorescence core scanners (XRF-CS) allow rapid, non-destructive, continuous and high-resolution analyses of the elemental composition of sediment cores, providing large sets of semi-quantitative data. These data can be converted to quantitative data through the linear regression approach using a relatively small number of discrete samples analyzed by techniques providing absolute concentrations. However, a precise characterization of the errors associated with the linear function is required to evaluate the quality of the calibrated element concentrations. Here we present a calibration of high-resolution XRF-CS for six metals (Ti, Mn, Fe, Zn, Pb and As) measured in heavily contaminated marine deposits so that absolute concentrations are obtained. In order to determine the best linear function for conversion of XRF data, we have tested three regression methods: the ordinary least-squares (OLS), which does not consider the standard error in any variable (x and y), the weighted ordinary least-squares (WOLS), which considers the weighted standard error of the vertical variable (y), and the weighted least-squares (WLS), which incorporates the standard error in both x and y variables. We demonstrate that the calibration method presented in this study significantly increases the correlation coefficient, higher than r2 = 0.94, and reduces both the data deviation and the errors of the linear function for the three regression methods. Nonetheless, the WLS appears as the best regression method to minimize errors in the calibrated element concentrations. Our results open the door to use calibrated XRF-CS data to evaluate marine sediment pollution according to the levels of the strictest sediment quality guidelines (SQG) with errors lower than 0.4%-2% for Fe, 1%-7% for Zn, 3-14% for Pb and 5%-16% for Mn. They highlight the robustness of the calibration procedure here presented for accurate and precise quantification of element concentrations from XRF-CS semi-quantitative data.
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Affiliation(s)
- M Cerdà-Domènech
- GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Barcelona, Spain
| | - J Frigola
- GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Barcelona, Spain.
| | - A Sanchez-Vidal
- GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Barcelona, Spain
| | - M Canals
- GRC Geociències Marines, Departament de Dinàmica de la Terra i de l'Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona, Barcelona, Spain
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13
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Ji Y, Zhang J, Liu Y, Zhou J, Wu N, Zhang H. Environmental behavior of and gastropod biomarker response to trace metals from a backwater area of Xian'nv lake. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 194:110381. [PMID: 32145529 DOI: 10.1016/j.ecoenv.2020.110381] [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: 10/27/2019] [Revised: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
Combined with sediment pollutant analysis, the gastropod Cipangopaludina cahayensis was chosen as an indicator organism to evaluate the environmental behavior of trace metals and the aquatic ecological risk that they present in a backwater area of Xian'nv Lake. Based on hydrological characteristics, 24 sampling sites representing the main stream (MS), tributaries (TR), lake area (LA) and lake tributaries (LT) were collected. The results revealed that cadmium (Cd) was the main pollutant and that it significantly accumulated in sediments of the research area. Based on the pollutant concentrations, the degree of Cd pollution was ranked in the following order: LA > MS > TR > LT. Several intersections between the rivers and Xian'nv Lake, including LA1, LA7 and LA 10, were observed to have higher Cd deposition. There was a significant difference in the spatial distribution of pollutants, which resulted in a higher accumulation of trace metals in the backwater area and its tributary. The Cd content in the visceral sac of C. cahayensis was positively correlated with the concentration of heavy metals in the sediment. The response of multiple antioxidant biomarkers, including superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST), as well as the glutathione (GSH) content and the level of by-products of lipid peroxidation (TBARS), in C. cahayensis revealed a potential relationship to the environmental behavior of the pollutants. By combining the different biomarkers responses, the integrated biomarker response index (IBR) corresponded well with the pollution distribution characteristics in different areas.
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Affiliation(s)
- Yong Ji
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China.
| | - Jie Zhang
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China.
| | - Ye Liu
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Juan Zhou
- College of Water Conservancy and Ecological Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Naichen Wu
- Aarhus Institute of Advanced Studies, Aarhus University, Høegh-Guldbergs Gade 6B, 8000, Aarhus C, Denmark
| | - Hao Zhang
- Faculty of Science and Technology, Kochi University, Monobe B200, Nankoku, Kochi, 783-8502, Japan
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14
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Liu Z, Liu Q, Qi X, Li Y, Zhou G, Dai M, Miao M, Kong Q. Evolution and resistance of a microbial community exposed to Pb(II) wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133722. [PMID: 31401502 DOI: 10.1016/j.scitotenv.2019.133722] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 06/10/2023]
Abstract
This study investigated the treatment performance of activated sludge on Pb(II)-containing wastewater, including contaminant removal efficiency, extracellular polymeric substances, pbrT gene content and the microbial community. The average removal efficiencies of ammonia nitrogen, chemical oxygen demand, total phosphorus, total nitrogen and Pb(II) were 40% ± 4%, 91% ± 3%, 95% ± 3%, 51% ± 5% and 92% ± 9% during the stable operation stage, respectively. Moreover, the extracellular polymeric substance -protein contents increased significantly from day 0 to day 60 (p < 0.05). The most abundant fluorescent component in extracellular polymeric substances was a humic acid-like substance, and its fluorescence intensity increased significantly from day 0 to day 60 (p < 0.05). Adsorption of negatively charged organic functional groups in extracellular polymeric substances was identified as a major component of the removal of Pb(II). Most of the denitrifying bacteria associated with nitrogen removal showed an increasing trend during the acclimation stage, which may have resulted in high total nitrogen removal efficiency. In addition, pbrT uptake protein was found to be responsible for the uptake of Pb(II) into cells. The abundance of the pbrT gene showed a downward trend (p < 0.05) after adding Pb(II), probably because expression of the pbrT gene was inhibited under Pb(II) stress. Sphingopyxis containing the pbrT gene was the dominant resistance genus, and its relative abundance increased significantly (p < 0.05) from day 0 to day 60. This study provided a theoretical basis for the treatment of Pb(II)-containing wastewater.
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Affiliation(s)
- Zhaosheng Liu
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; Editorial Office of China's Population, Resources and Environment, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Qi Liu
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Xiaoyu Qi
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Yexuan Li
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Guangqing Zhou
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Meixue Dai
- College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Mingsheng Miao
- College of Life Science, Shandong Normal University, 88 Wenhua Donglu, Jinan 250014, Shandong, PR China
| | - Qiang Kong
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore.
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15
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Donázar-Aramendía I, Sánchez-Moyano JE, García-Asencio I, Miró JM, Megina C, García-Gómez JC. Human pressures on two estuaries of the Iberian Peninsula are reflected in food web structure. Sci Rep 2019; 9:11495. [PMID: 31395902 PMCID: PMC6687818 DOI: 10.1038/s41598-019-47793-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 07/23/2019] [Indexed: 11/09/2022] Open
Abstract
As a result of the increased urban and agricultural development in coastal environments, estuaries are among the most modified and threatened aquatic ecosystems. This study used stable isotopes to examine the effects of human impacts by contrasting the food web structures of two Iberian estuaries exposed to different degrees of human pressure. More complex feeding pathways were found in the more altered estuary (Guadalquivir). Greater spread among species along the carbon axis suggests that the primary consumers exploit organic matter with various origins, whereas different nitrogen signals of the secondary consumers suggest that they feed on different suites of prey. In contrast, the similar isotopic signals of secondary consumers in the relatively little influenced estuary (Guadiana) suggests similarity in diet composition and feeding on the same organic matter sources. Understanding trophic interactions in estuaries is vital for defining proper management and conservation, and the preliminary data provided here are one step in this direction.
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Affiliation(s)
- I Donázar-Aramendía
- Laboratorio Biología Marina, Seville Aquarium R + D + I Biological Research Area., Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain.
| | - J E Sánchez-Moyano
- Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
| | - I García-Asencio
- Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
| | - J M Miró
- Laboratorio Biología Marina, Seville Aquarium R + D + I Biological Research Area., Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
| | - C Megina
- Biodiversidad y Ecología Acuática, Seville Aquarium R + D + I Biological Research Area, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
| | - J C García-Gómez
- Laboratorio Biología Marina, Seville Aquarium R + D + I Biological Research Area., Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
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16
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Zhuang M, Sanganyado E, Li P, Liu W. Distribution of microbial communities in metal-contaminated nearshore sediment from Eastern Guangdong, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 250:482-492. [PMID: 31026695 DOI: 10.1016/j.envpol.2019.04.041] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/22/2019] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
Nearshore environments are a critical transitional zone that connects the marine and terrestrial/freshwater ecosystems. The release of anthropogenic chemicals into nearshore ecosystems pose a human and environmental health risk. We investigated the microbial diversity, abundance and function in metal-contaminated sediments collected from the Rongjiang, Hanjiang and Lianjiang River estuaries and adjacent coastal areas using high throughput sequencing. The concentration of nutrients (NO3-N, NO2-N, NH4-N, PO4-P) and metal (Cu, Zn, Cd, Pb, As, Hg) contaminants were higher at the mouth of the rivers compared to the coastal lines, and this was confirmed using cluster analysis. Estimates obtained using geoaccumulation index showed that about 38.9% of the sites were contaminated with Pb and the pollution load index showed that sediment from the mouth of Hanjiang River Estuary was moderately polluted with metals. In the nearshore sediment samples collected, Proteobacteria, Bacteroidetes, Planctomycetes, Chloroflexi, Acidobacteria were the dominant phylum with relative abundances of 46.6%, 8.05%, 6.47%, 5.26%, and 4.59%, respectively. There was no significant correlation between environmental variables and microbial abundance and diversity except for total organic carbon (TOC) (diversity; r = 0.569, p < 0.05) and Cr (diversity; r = 0.581, p < 0.05). At phyla level, Nitrospirae had a significant negative correlation with all metals except Cr, while OD1 had a significant positive correlation with all the metals. Overall, changes in nearshore sediment microbial communities by environmental factors were observed, and these may affect biogeochemical cycling.
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Affiliation(s)
- Mei Zhuang
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China
| | - Edmond Sanganyado
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China
| | - Ping Li
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China
| | - Wenhua Liu
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China.
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17
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González-Ortegón E, Laiz I, Sánchez-Quiles D, Cobelo-Garcia A, Tovar-Sánchez A. Trace metal characterization and fluxes from the Guadiana, Tinto-Odiel and Guadalquivir estuaries to the Gulf of Cadiz. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 650:2454-2466. [PMID: 30293001 DOI: 10.1016/j.scitotenv.2018.09.290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/21/2018] [Accepted: 09/22/2018] [Indexed: 06/08/2023]
Abstract
Metals transported into the coastal zone by the South Iberian rivers are key to understand the biogeochemical cycles and distribution of trace elements in the Gulf of Cadiz (GoC hereinafter) and the exchange with the Mediterranean Sea. Previous studies carried out in the 80s have suggested that metal enrichment in the Alboran Sea (Western Mediterranean) is related with fluvial inputs from acid mine drainage from the Tinto and Odiel rivers. The present study evaluates the contribution of dissolved trace metal concentrations (i.e. Cd, Co, Cu, Fe, Mo, Ni, Pb, V, Zn) from the three main rivers discharging into the GoC (i.e. Guadiana, Tinto-Odiel and Guadalquivir rivers). Our results show that the metal composition of water discharged from each river is impacted by the activities developed in the course of the rivers, which clearly influence the GoC coastal surface waters composition. Metal fluxes from the Guadalquivir river are quantitatively higher than those from the Tinto-Odiel (e.g. up to 73% and 19% higher for Ni and Cu, respectively). Although the metal concentrations spatial distributions in the GoC are dominated by the circulation pattern between the Atlantic and the Mediterranean Sea, the concentrations within the GoC continental shelf could be explained by a greater contribution from the Guadalquivir estuary (e.g. 80.5%, 54.6%, 56.5% and 56.6% for Ni, Cu, Mo, and V respectively).
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Affiliation(s)
- E González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain; Campus de Excelencia Internacional del Mar (CEIMAR), Spain.
| | - I Laiz
- Dept. of Applied Physics, University of Cadiz, Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain
| | - D Sánchez-Quiles
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain
| | - A Cobelo-Garcia
- Instituto de Investigaciones Marinas (IIM-CSIC), Vigo, Spain
| | - A Tovar-Sánchez
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain
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18
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Sawut R, Kasim N, Maihemuti B, Hu L, Abliz A, Abdujappar A, Kurban M. Pollution characteristics and health risk assessment of heavy metals in the vegetable bases of northwest China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 642:864-878. [PMID: 29925057 DOI: 10.1016/j.scitotenv.2018.06.034] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/02/2018] [Accepted: 06/03/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was to investigate heavy metal contamination in four major vegetable bases and determine the health risks of residents in the vicinity of the highly urbanized city Urumqi in Xinjiang, China. In this paper, we determined the contents of six heavy metals (i.e., As, Zn, Cd, Cr, Hg, and Pb) in surface soil and groundwater to evaluate the levels of heavy metal pollution and human health risks using the pollution index (PI), the Nemerow integrated pollution index (NIPI), the ecological risk factor (Eir), risk index (RI) and the health risk assessment model. The results showed that (1) The PI, NIPI, the ecological risk factor and risk index indicated that Cd and Hg were the primary pollutants in Sishihu village. These indices suggested moderate to slightly heavy potential ecological risks. In Anningqu town, Hg and Cd led to high levels of pollution and posed slightly heavy potential ecological risks. In Qinggedahu village, it was concluded that the metals Zn, Cr, Cd, Hg, and Pb caused moderate to heavy pollution. In Liushihu village, the pollution trends in the area were low. The results of the pollution level of the irrigation well water (i.e., groundwater) indicated that the well water was considerably safer than the soil, but Cr posed a slight pollution risk. (2) The non-carcinogenic risks for adults based on the HI values of these four vegetable bases were <1. However, when considering the non-carcinogenic risks for children, the HI values were larger than 1 in all areas, indicating the local children have a higher potential non-carcinogenic risk. In addition, CR (Carcinogenic risk) from dermal contact with the vegetables bases did not pose a high risk for residents. However, for adults, the carcinogenic risk posed by Arsenic (As) through trough inhalation was the primary pathway of exposure in three of the vegetable bases, generally in the order of Qinggedahu village > Sishihu village > Anningqu town. For children, the carcinogenic risks posed by As through trough inhalation and ingestion were the main exposure pathways. From the TCR results, it can be seen that in Sishihu village, Anningqu town, and Qinggedahu village, the TCR values for adults and children were >1 × 10-4 (unitless), and this degree of carcinogenic risk is unacceptable. (3) The identification of risk sources determined the main pollution sources affecting the vegetable bases were human activities and natural sources. Anthropogenic activities were most often related to traffic pollution sources and agricultural pollution sources, such as the irrational use of pesticides and fertilizers and stock farming. The results are important for designing remediation scenarios to control the spread of contamination as well as for serving as a reference point for soil environmental protection efforts in this region.
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Affiliation(s)
- Rukeya Sawut
- College of Resources and Environmental Science, Xinjiang University, Urumqi 830046, China; Key Laboratory of Oasis Ecology Xinjiang University, Urumqi 830046, China
| | - Nijat Kasim
- College of Resources and Environmental Science, Xinjiang University, Urumqi 830046, China; Key Laboratory of Oasis Ecology Xinjiang University, Urumqi 830046, China
| | - Balati Maihemuti
- College of Resources and Environmental Science, Xinjiang University, Urumqi 830046, China; Key Laboratory of Xinjiang General Institutions of Higher Learning for Smart City and Environment Modeling, Xinjiang University, Urumqi 830046, China; Key Laboratory of Oasis Ecology Xinjiang University, Urumqi 830046, China.
| | - Li Hu
- Xinjiang Engineering Center of Satellite Applications, Urumqi 83000, China
| | - Abdugheni Abliz
- Key Laboratory of Oasis Ecology Xinjiang University, Urumqi 830046, China; Institute of Arid Ecology and Environment, Urumqi 830046, Xinjiang, China
| | - Abdusalam Abdujappar
- College of Resources and Environmental Science, Xinjiang University, Urumqi 830046, China; Key Laboratory of Oasis Ecology Xinjiang University, Urumqi 830046, China
| | - Miradil Kurban
- College of Resources and Environmental Science, Xinjiang University, Urumqi 830046, China
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