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Sathyanarayanan B, Sivaprakasam V, Periyasami S, Jeyasingh V, Sambath P. Exploring the temporal toxicity signature: A baseline evaluation of the heavy metal concentration in estuarine core sediments in the coastal region of cauvery delta, bay of bengal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:57933-57958. [PMID: 39302580 DOI: 10.1007/s11356-024-34844-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 08/25/2024] [Indexed: 09/22/2024]
Abstract
Globally, the concentration of heavy metals and sediment toxicity analysis are significant liabilities to aquatic environments. This scrutiny outlines the sediment textures, heavy metals and toxicity status associated with environmental pollution indices in the core sediment of the Cauvery and Vettar estuaries, East coast of India. The impact of rapid industrialization, urbanization, harbour activities and agricultural activities influences on the twain estuary is a significant concern to designate the environment. The contamination status of the sediments affects the potential biodiversity, ecological risks and human health. A total of two core sediments were recovered from the Cauvery and Vettar estuaries in March 2023 to decipher the environmental pollution status. Meticulous observation of the textural studies underscores the prevalence of sand content in Cauvery, and Vettar sediments consist of predominate clay content and minor silt contents. Furthermore, the organic matter is augmented in the Vettar River due to the higher input of waste disposal, seaweeds and algae due to the surrounding landmass. Twain core sediments argue that heavy metal concentration is decreasing in order as Fe > Zn > Ni > Pb > Cu > Cr by using portable X-ray fluorescence (pXRF) spectrometry. Remarkable results of environmental pollution indices such as Igeo, Ef, Cf, Cd and mCd state very highly polluted, extreme enrichments, high contamination and very high degree of contamination. Furthermore, the potential ecological risk indices such as PLI, SQGs, and PERI argue polluted, medium to high toxicity and moderate adverse ecological risk to the estuarine regions. Statistical analysis of the heavy metal affirms the enrichment of Fe metals may derive from lithogenic and/or anthropogenic influences, and the other studied metals such as Cu, Ni, Zn, Pb and Cr may be influenced by the anthropogenic activities in the aspect of point and non-point pollution sources. This could result from both estuaries undergoing higher pollution, in which the Vettar estuary is a considerable environmental risk zone compared to the Cauvery river due to the impact of industrial effluents and rapid urbanization activities. This finding underscores the urgent need for enhanced estuarine sediment quality study and comprehensive assessment of sediment toxicity, regulating the beneficial acumen for the government to follow the suitable remediation on the embellish policy of river and marine environments.
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Affiliation(s)
| | - Vasudevan Sivaprakasam
- Department of Earth Sciences, Annamalai University, Annamalai Nagar, 608002, Chidambaram, India.
| | - Sivaranjan Periyasami
- Department of Earth Sciences, Annamalai University, Annamalai Nagar, 608002, Chidambaram, India
| | - Vigneshwar Jeyasingh
- Department of Earth Sciences, Annamalai University, Annamalai Nagar, 608002, Chidambaram, India
| | - Pravinraj Sambath
- Department of Earth Sciences, Annamalai University, Annamalai Nagar, 608002, Chidambaram, India
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Garnier J, Tonha M, Araujo DF, Landrot G, Cunha B, Machado W, Resongles E, Freydier R, Seyler P, Ratié G. Detangling past and modern zinc anthropogenic source contributions in an urbanized coastal river by combining elemental, isotope and speciation approaches. JOURNAL OF HAZARDOUS MATERIALS 2024; 480:135714. [PMID: 39298958 DOI: 10.1016/j.jhazmat.2024.135714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 08/30/2024] [Accepted: 08/30/2024] [Indexed: 09/22/2024]
Abstract
The accumulation of trace metals in the environmental compartments of coastal rivers is a global and complex environmental issue, requiring multiple tools to constrain the various anthropogenic sources and biogeochemical processes affecting the water quality of these environments. The Valao fluvio-estuarine system (Rio de Janeiro, Brazil) presents a challenging case of a coastal river contaminated by both modern and historical anthropogenic metal sources, located in the land and in the intra-estuary, continuously mixed by tidal cycles. This study employed a combination of spatial distribution analysis of trace metals including gadolinium (Gd), zinc (Zn) isotopic analyses, and X-ray absorption spectroscopy (XAS) to distinguish between these sources. The concentrations of metals in both dissolved (water samples) and surficial sediment compartments (Suspended Particulate Matter and sediment samples) display an overall enrichment trend from upstream to downstream. Multivariate statistical analysis allows to discriminate geogenic elements derived from watershed geology (Ti, K, and Mg) vs anthropogenic contaminants from urban runoff and domestic sewage discharges (Cu, Cr, Pb, Zn, and Gd); and legacy metal contaminants (Zn and Cd) remobilized from ancient metallurgical wastes and transported upstream in the estuary during tidal cycles. The anthropogenic Gd concentration in the dissolved compartment increases along the watercourse, highlighting continuous ongoing sewage discharge. Zinc solid speciation also indicates that Zn contribution from legacy metallurgy waste is primarily associated with sulfide-Zn and Zn-phyllosilicate in the outlet estuary, while in upstream sediments of fluvio-estuarine system, Zn is found bound to organic matter. Zinc isotope systematically reveals a progressive downstream shift to heavier isotope compositions. Upstream, the relatively pristine site and the urbanized section of the river exhibit a relatively uniform δ66/64Zn value (+0.20 ± 0.07 ‰) in suspended particulate matter (SPM) and surficial sediments. These results indicate that domestic sewage discharges contribute to Zn enrichment in sediments of the Valao fluvio-estuarine system but without modifying its isotope signature in sediments. The sediment of the downstream estuarine section shows a heavier δ66/64Zn value (+0.48 ± 0.08 ‰), indicating the strong influence of the intra-estuarine source identified as the historical metallurgic contamination. An integrated view of the geochemical tracers allows thus inferring that the untreated sewage and legacy metallurgical contamination are the primary sources of anthropogenic Zn contamination. It highlights the progressive mixing along the estuarine gradient under tidal dynamics. The influence of the former source continuously expands from the headland towards the estuary.
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Affiliation(s)
- J Garnier
- University of Brasilia, Institute of Geosciences, Graduate Program in Geology, Asa Norte, 70910-900 Brasilia, DF, Brazil.
| | - M Tonha
- University of Brasilia, Institute of Geosciences, Graduate Program in Geology, Asa Norte, 70910-900 Brasilia, DF, Brazil
| | - D F Araujo
- Ifremer, CCEM, Unité Contamination Chimique des Ecosystèmes Marins, F-F-44300 Nantes, France
| | - G Landrot
- Synchrotron SOLEIL, 91190 Saint Aubin, France
| | - B Cunha
- University of Brasilia, Institute of Geosciences, Graduate Program in Geology, Asa Norte, 70910-900 Brasilia, DF, Brazil; Center of Geochronological Research, Geoscience Institute, University of São Paulo, São Paulo, SP, Brazil
| | - W Machado
- Geochemistry Department, Federal University of Fluminense, Campus do Valonguinho, Niterói, Rio de Janeiro, Brazil
| | - E Resongles
- Hydrosciences Montpellier, Univ. Montpellier, CNRS, IRD, Montpellier, France
| | - R Freydier
- Hydrosciences Montpellier, Univ. Montpellier, CNRS, IRD, Montpellier, France
| | - P Seyler
- University of Brasilia, Institute of Geosciences, Graduate Program in Geology, Asa Norte, 70910-900 Brasilia, DF, Brazil; Hydrosciences Montpellier, Univ. Montpellier, CNRS, IRD, Montpellier, France
| | - G Ratié
- Nantes Université, Univ. Angers, Le Mans Université, CNRS, Laboratoire de Planétologie et Géosciences LPG UMR 6112, F-44000 Nantes, France
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Wang M, Chen Q, Cui J, Yu Z, Wang W, Sun Z, Chen Q. Distribution, ecological risk, and sediment-influencing mechanisms of heavy metals in surface sediments along the intertidal gradient in typical mangroves in Hainan, China. MARINE POLLUTION BULLETIN 2024; 206:116677. [PMID: 39018823 DOI: 10.1016/j.marpolbul.2024.116677] [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: 04/04/2024] [Revised: 06/22/2024] [Accepted: 07/02/2024] [Indexed: 07/19/2024]
Abstract
The relative importance of each sediment physicochemical property to sediment heavy-metal (HM) contents has not yet been quantitatively evaluated. Differences in the HM contents of mangrove surface sediments among the high, middle, and low intertidal zones, and their quantitative relationships to sediment physicochemical properties, were investigated in Dongzhaigang and Qinglan Harbor reserves, Hainan, China. In both reserves, the Cu and Ni concentrations increased significantly from the low to high intertidal zones; the patterns of change in the Mn and Pb contents were opposite in the two reserves. The Cr concentration was significantly lower and the Pb concentration was significantly higher in the dry season than in the wet season. Ecological risks of HM were higher in Dongzhaigang than in Qinglan Harbor. Regression and redundancy (hierarchical partitioning) analyses showed that the sediment total sulfur, nitrogen and potassium contents and pH were key factors affecting the HM contents of mangrove surface sediments.
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Affiliation(s)
- Mengli Wang
- Center for Eco-Environment Restoration Engineering of Hainan Province, School of Ecology, Hainan University, Haikou 570228, PR China
| | - Qian Chen
- Center for Eco-Environment Restoration Engineering of Hainan Province, School of Ecology, Hainan University, Haikou 570228, PR China
| | - Jingyi Cui
- Center for Eco-Environment Restoration Engineering of Hainan Province, School of Ecology, Hainan University, Haikou 570228, PR China
| | - Zhouwei Yu
- Center for Eco-Environment Restoration Engineering of Hainan Province, School of Ecology, Hainan University, Haikou 570228, PR China
| | - Wenjuan Wang
- Center for Eco-Environment Restoration Engineering of Hainan Province, School of Ecology, Hainan University, Haikou 570228, PR China
| | - Zhongyi Sun
- Center for Eco-Environment Restoration Engineering of Hainan Province, School of Ecology, Hainan University, Haikou 570228, PR China
| | - Quan Chen
- Center for Eco-Environment Restoration Engineering of Hainan Province, School of Ecology, Hainan University, Haikou 570228, PR China.
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Ke Y, Ou C, Guo X, Liu S, Yao C, Shi B, Que H. Heavy Metal Accumulation in Oysters from an Aquaculture Area in the Luoyangjiang River Estuary. TOXICS 2024; 12:645. [PMID: 39330573 PMCID: PMC11436002 DOI: 10.3390/toxics12090645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2024] [Revised: 08/28/2024] [Accepted: 08/30/2024] [Indexed: 09/28/2024]
Abstract
Oysters are a group of economically important bivalves in China, with estuaries serving as one of their primary cultivation areas. However, heavy metal pollution in these estuarine environments poses a potential threat to aquaculture by leading to the accumulation of heavy metals in farmed oysters, which could impact their safety and marketability. This study was conducted in the aquaculture area of the Luoyangjiang River estuary, where eight sampling sites were selected. Water, sediment, and oysters categorized by shell length were collected from each site. The concentrations of heavy metals (Ag, As, Cd, Cr, Cu, Ni, Pb, and Zn) were determined in both the environmental samples and oyster tissues. Additionally, multiplex species-specific PCR was used to identify oyster species. The results showed significant variations in dissolved-phase and suspended particulate matter (SPM) metal concentrations across different sampling sites, while sediment metal concentrations were more consistent but similar to those in SPM. The large oysters were comprised of 50% Magallana angulata and 50% Magallana gigas, while small oysters were identified as Magallana sikamea. The Cd, Cu, Pb, and Zn levels in both size groups of oysters exceeded data from previous studies, indicating contamination in the estuary. The observed differences in heavy metal concentrations between large and small oysters primarily reflect species-specific variability in metal accumulation, which may also be influenced by factors such as growth and exposure duration. Furthermore, the lack of significant correlation between metal concentrations in environmental media and oysters suggests that oysters may be exposed to multiple sources of metal contamination.
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Affiliation(s)
- Yizhou Ke
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China; (C.O.); (S.L.); (C.Y.); (B.S.)
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China
| | - Changchun Ou
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China; (C.O.); (S.L.); (C.Y.); (B.S.)
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China
| | - Xiaoyu Guo
- College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China;
| | - Shuyi Liu
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China; (C.O.); (S.L.); (C.Y.); (B.S.)
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China
| | - Chenlu Yao
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China; (C.O.); (S.L.); (C.Y.); (B.S.)
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China
| | - Bo Shi
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China; (C.O.); (S.L.); (C.Y.); (B.S.)
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China
| | - Huayong Que
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China; (C.O.); (S.L.); (C.Y.); (B.S.)
- State Key Laboratory of Mariculture Breeding, Fisheries College of Jimei University, Xiamen 361021, China
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Palanivel Partha S, Bharathidasan V, Damotharan P, Selvaraj P, Murugesan P, Sivaraj S, Syed A, Elgorban AM. Assessment of ecological status of Uppanar and Vellar estuaries through multivariate pollution indices. MARINE POLLUTION BULLETIN 2024; 203:116390. [PMID: 38701600 DOI: 10.1016/j.marpolbul.2024.116390] [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: 11/02/2023] [Revised: 03/23/2024] [Accepted: 04/15/2024] [Indexed: 05/05/2024]
Abstract
Multivariate pollution degree indices were utilized to evaluate the environmental condition of the Uppanar and Vellar estuaries. The Trophic Index (TRIX) indicates a state of "moderate eutrophication" with a value of 4.92, while the Trophic State Index (TSI) ranged from 40.3 to 57.2, categorizing the trophic states from "oligotrophic" to "eutrophic". The Comprehensive Pollution Index (CPI) showed a range of 0.13 to 0.94, classifying pollution levels from "unpolluted" to "slightly polluted". The study revealed that the Uppanar and Vellar estuaries underwent seasonal variations, transitioning from an oligotrophic state during the post-monsoon and summer periods to a eutrophic state in the pre-monsoon and monsoon seasons. The application of multivariate statistical tools allowed the identification of pollution indicator species to assess the estuarine systems. The insights gained from this study can be valuable for assessing other ecosystems facing similar anthropogenic activities, providing a basis for informed management and conservation strategies.
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Affiliation(s)
- Sarathy Palanivel Partha
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608 502, Tamil Nadu, India
| | - Veeraiyan Bharathidasan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608 502, Tamil Nadu, India
| | - Palani Damotharan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608 502, Tamil Nadu, India
| | - Palanichamy Selvaraj
- Department of Biotechnology, Sri Kaliswari College (Autonomous), Sivakasi 626130, India
| | - Perumal Murugesan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608 502, Tamil Nadu, India
| | - Sigamani Sivaraj
- Centre for Ocean Research, Sathyabama Institute of Science and Technology, Chennai 600119, India.
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Center of Excellence in Biotechnology Research (CEBR), King Saud University, Riyadh, Saudi Arabia
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Selvaraj V, Pandu P, Saradhambal SR, Sankarappan R, Anandarao R. An appraisal of trace element concentration and environmental risk of sediments: a baseline study of sediments from Arasalar River Estuary, Tamil Nadu, India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:41446-41461. [PMID: 37563508 DOI: 10.1007/s11356-023-28552-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 06/28/2023] [Indexed: 08/12/2023]
Abstract
A total of 21 surface sediment samples collected from Arasalar River are subjected to sediment texture (sand-silt-clay ratio), trace elements, organic matter, and CaCO3 studies to understand the accumulation dynamics of sediments. To assess the impact of metal pollution in estuarine sediments, the essential parameters should be done by checking the sediment characteristics, spatial distribution of heavy metal sources, sediment dynamics, and geochemical analysis. To evaluate the contamination level of metal pollution, a basic standard reference is required to decipher the values ranging from natural to anthropogenic contribution. From this research analysis, it is observed that the study area predominantly comprises silty sand and sand silty nature. The calcium carbonate content in the sediment is found to be proportional to the presence of shell fragments, whereas the organic matter (OM) is derived from riverine and coastal input which acts as a primary source. The obtained results confessed the average contents (mg/g) for the following selected eight elements in the order of Fe (35249-49068) > Mn (286-519) > Ni (107-279) > Cu (78.30-155.70) > Cr (50-99) > Zn (38.70-91.90) > Pb (39.90-62.40), and Co (12.6-29.1) by using an atomic absorption spectrophotometer (AAS) are utilized for this analysis. Multivariate analysis of heavy metals affirms geogenic sources (weathering of parent rocks) for Fe, Mn, Cr, Co, and Zn, whereas Cu, Ni, and Pb originated from anthropogenic activities (urban and industrial activities). The pollution load index, sediment pollution index, Igeo index, and PERI are categorized as under polluted, low to moderate polluted, and low potential environmental risk variety. Constant inspection and guidance are needed to prevent effluences from various agriculture and industrial activities in the nearby regions. The findings from this research may support and help the government to follow the suitable remediation on the better management of river and coastal areas.
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Affiliation(s)
- Venkatesan Selvaraj
- Department of Earth Sciences, Annamalai University, Annamalai Nagar, Tamil Nadu, 608002, India.
| | - Parthasarathy Pandu
- Department of Applied Geology, University of Madras, Guindy Campus, Chennai, Tamil Nadu, 600025, India
| | | | - Rajmohan Sankarappan
- Department of Geology, Alagappa Government Arts College, Karaikudi, Tamil Nadu, 630003, India
| | - Rajkumar Anandarao
- Department of Geology, University of Madras, Chennai, Tamil Nadu, 600025, India
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Nithin A, Sundaramanickam A, Surya P, Kumar TTA. Chromium (IV) transfer to Amusium pleuronectes by LDPE microplastics: An experimental study. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131869. [PMID: 37336108 DOI: 10.1016/j.jhazmat.2023.131869] [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: 02/18/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/21/2023]
Abstract
An experiment was carried out to investigate the potential of virgin LDPE microplastics to transfer heavy metals. Desired shapes (fibres, fragments, and films) and sizes (< 5 mm) of virgin LDPE microplastics were immersed in a known concentration (30 µg/l) of chromium (IV). These Cr-coated microplastics were introduced into a culture tank containing edible scallops (Amusium pleuronectes). After the completion of the experiment (5 days), the sediments in the culture tank and edible tissues of A. pleuronectes were tested for the presence of Cr. In the sediments, a maximum concentration of 1.934 µg/g of Cr was accumulated at a rate of R2 = 0.979, while in the tissues, the maximum accumulation concentration was 0.733 µg/g of Cr at a rate of R2 = 0.807. Energy Dispersive X-ray Spectroscopy analysis also confirmed the presence of Cr (2.61 ± 0.44 mass % and 1.80 ± 0.30 atom%) in the tissues of A. pleuronectes, which was absent in the control tissues. The study showed that when exposed to contaminants such as heavy metals, LDPE microplastics can adhere and transfer them to biotic tissues. LDPE showed the potential to transfer adhered contaminants; however, the effects caused by these transferred contaminants on biota must be studied further. Risk assessment study showed that potential ecological risk of Cr is < 40 indicating low risk however, the combined effect of Cr and LDPE can compound its toxicity which needs to be studied further.
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Affiliation(s)
- Ajith Nithin
- Centre of Advanced Study in Marine Biology, Annamalai University Parangipettai, Tamil Nadu, India.
| | - Arumugam Sundaramanickam
- Centre of Advanced Study in Marine Biology, Annamalai University Parangipettai, Tamil Nadu, India.
| | - Parthasarathy Surya
- Centre of Advanced Study in Marine Biology, Annamalai University Parangipettai, Tamil Nadu, India
| | - T T Ajith Kumar
- ICAR - National Bureau of Fish Genetic Resources, Lucknow 226002, Uttar Pradesh, India.
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Lam KL, Tam NFY, Xu SJL, Mo WY, Chan PL, Lee FWF. Intra- and inter-habitat variation in sediment heavy metals, antibiotics and ecological risks in Mai Po RAMSAR, China. MARINE POLLUTION BULLETIN 2023; 193:115178. [PMID: 37354831 DOI: 10.1016/j.marpolbul.2023.115178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/08/2023] [Accepted: 06/12/2023] [Indexed: 06/26/2023]
Abstract
Distribution of heavy metals (HMs) and antibiotics (ABs) in surface sediments of three habitats: mudflat, mangrove and gei wai (inter-tidal shrimp ponds), at Mai Po RAMSAR were determined with inductively coupled plasma and liquid chromatograph tandem - mass spectrometry, respectively. Eight HMs (Cr, As, Pb, Cd, Mn, Ni, Cu and Zn), and ten ABs (tetracyclines, quinolones, macrolides and sulphonamides) were detected in all habitats, with relatively lower concentration in gei wai. Ecological risk assessment based on PNEC revealed that HMs posed a higher ecological risk to microorganisms than ABs. All metals except Mn were above their respective threshold effect levels according to sediment quality guidelines, indicating their potential toxicity to benthos. The enrichment factor and geo-accumulation index on background values suggested sediments were moderately polluted by Zn, Cu and Cd, possibly from anthropogenic inputs. This study implies that HMs pollution must be prevented through proper regulation of agricultural and industrial discharge.
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Affiliation(s)
- Kit-Ling Lam
- School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong SAR, China
| | - Nora Fung-Yee Tam
- School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong SAR, China; Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Steven Jing-Liang Xu
- School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong SAR, China
| | - Wing-Yin Mo
- School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong SAR, China
| | - Ping-Lung Chan
- School of Nursing and Health Studies, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong SAR, China.
| | - Fred Wang-Fat Lee
- School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong SAR, China; Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong SAR, China.
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Sultana S, Huang R, Van Zwieten L, Wang H, Wu J. Trapping effect of mangrove and saltmarsh habitats on geochemical elements: a case study in Ximen Island, Zhejiang, China. JOURNAL OF SOILS AND SEDIMENTS 2023; 23:2327-2343. [DOI: 10.1007/s11368-023-03503-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 03/18/2023] [Indexed: 10/10/2024]
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Pasumpon N, Varma R, Vasudevan S. Bioaccumulation level of metals and health risk assessment of selected red and green seaweeds validated by ICP-MS. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:66781-66799. [PMID: 37186189 DOI: 10.1007/s11356-023-27192-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 04/19/2023] [Indexed: 05/17/2023]
Abstract
The bioaccumulation of trace metals in 10 selected edible seaweeds was studied using inductively coupled plasma mass spectroscopy (ICP-MS). Bioaccumulation of higher levels of manganese (4.94 ± 0.15 μg/g) and aluminium (4.21 ± 0.18 μg/g) and lower levels of arsenic (0.18 ± 0.02 μg/g) and vanadium (0.09 ± 0.02 μg/g) were observed in Chlorophyta. In Rhodophyta, bioaccumulation of iron (8.51 ± 0.19 μg/g) was high, while lower levels of magnesium (0.13 ± 0.02 μg/g) and strontium (0.21 ± 0.01 μg/g) were observed among the seaweeds studied. Health assessment studies were also conducted on seaweeds to understand their effects on human consumption. The findings imply that consuming macroalgae has no health risk due to these elements in the general population. Furthermore, the confirmative toxicity of specific metals, such as Cd, Pb, and Zn metals in macroalgae, should be monitored constantly.
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Affiliation(s)
- Nigariga Pasumpon
- Department of Oceanography and Coastal Area Studies, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, 630003, India
| | - Rahul Varma
- Department of Oceanography and Coastal Area Studies, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, 630003, India
| | - Sugumar Vasudevan
- Department of Oceanography and Coastal Area Studies, Alagappa University, Science Campus, Karaikudi, Tamil Nadu, 630003, India.
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Subramanian A, Nagarajan AM, Vinod S, Chakraborty S, Sivagami K, Theodore T, Sathyanarayanan SS, Tamizhdurai P, Mangesh VL. Long-term impacts of climate change on coastal and transitional eco-systems in India: an overview of its current status, future projections, solutions, and policies. RSC Adv 2023; 13:12204-12228. [PMID: 37091602 PMCID: PMC10113820 DOI: 10.1039/d2ra07448f] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 02/03/2023] [Indexed: 04/25/2023] Open
Abstract
Urbanization and industrial development are increasing rapidly. These are accompanied by problems of population explosion, encroachment of agricultural, and construction lands, increased waste generation, effluent release, and escalated concentrations of several greenhouse gases (GHGs) and pollutants in the atmosphere. This has led to wide-scale adverse impacts. Visible effects are fluctuations in temperatures and precipitation, rising sea levels, unpredictable floods, storms and cyclones, and disruption to coastal and transitional ecosystems. In a country like India with a massive population of nearly 1.4 billion and around 420 million people dwelling on or near the coasts, this effect is pre-dominant. India has extensive coastlines on both sides that are subject to greater contact and high impact from the water bodies. The factors impacting climate change, its consequences, and future predictions must be analyzed immediately for implementing precautionary measures to ameliorate the detrimental effects. Several endemic species have been endangered as these changes have resulted in the loss of habitat and interfered with the food webs. Climatic impacts on transitional ecosystems also need to be considered to preserve the diversity of each. The cooperation of governmental, independent organizations and policymakers throughout the world is essential to control and mediate the impacts on health, agriculture, and other related sectors, the details of which have been elaborated in this review. The review analyses the trends in climatic variation with time and discusses a few extremities which have left permanent effects on the population primarily concerning the coastal - Indian scenario and its eco-systems.
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Affiliation(s)
- Aishwarya Subramanian
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology Vellore India +91 9699215299
| | - Aditya Mosur Nagarajan
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology Vellore India +91 9699215299
| | - Sruthi Vinod
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology Vellore India +91 9699215299
| | - Samarshi Chakraborty
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology Vellore India +91 9699215299
| | - Krishanasamy Sivagami
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology Vellore India +91 9699215299
| | - Thomas Theodore
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology Vellore India +91 9699215299
| | - Sri Shalini Sathyanarayanan
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology Vellore India +91 9699215299
| | - Perumal Tamizhdurai
- Department of Chemistry, Dwaraka Doss Goverdhan Doss Vaishnav College (Autonomous) (Affiliated to the University of Madras, Chennai) 833, Gokul Bagh, E.V.R. Periyar Road, Arumbakkam Chennai 600 106 Tamil Nadu India +91 9677146579
| | - V L Mangesh
- Department of Mechanical Engineering, Koneru Lakshmaiah Education Foundation Vaddeswaram Guntur 522502 Andhra Pradesh India +91 7299330012
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12
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Rao MN, Gaikwad S, Ram A, Pradhan UK, Sautya S, Kumbhar L, Udayakrishnan PB, Siddaiha V. Effects of sedimentary heavy metals on meiobenthic community in tropical estuaries along eastern Arabian Sea. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:731-750. [PMID: 35292879 DOI: 10.1007/s10653-022-01239-3] [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: 10/28/2021] [Accepted: 02/25/2022] [Indexed: 06/14/2023]
Abstract
The central west coast of India comprises the 720 km long coastline of Maharashtra state and houses widespread industrial zones along the eastern Arabian Sea. Sediments from seven industrial-dominated estuaries along the central west coast were studied for metal enrichment and benthic assemblages to determine sediment quality status and ecological effects in these areas. The suit of geochemical indices highlighted the contamination of sediment in the estuaries concerning heavy metals. Positive correlations of Hg with Co, Zn, Ni, Cr, and Pb indicated the source similarity and effect of anthropogenic activity. non-Metric Multidimensional Scaling (n-MDS) based on meiofaunal abundance showed a cleared separation of clusters through the gradient of heavy metal concentrations. The Canonical Correspondence Analysis (CCA) results with the Monte Carlo test signified those heavy metals influenced the meiobenthic community. Heavy metals (Cr, Ni, Zn, Cd, Pb, and Hg) were the main drivers shaping the meiofaunal community with a significant (p < 0.05) reduction in taxa richness, diversity, and evenness. Dominant meiofaunal assemblages evidence the tolerance of foraminiferans and nematodes. However, these taxa were affected by decreased abundance at impacted sites compared to other fauna. In conclusion, results demonstrated that impairment occurred in the meiofaunal community in most estuaries (except AB and KK).
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Affiliation(s)
- M Nageswar Rao
- CSIR-National Institute of Oceanography, Regional Centre, Mumbai, 400053, India
- Department of Organic Chemistry and Food, Drug and Water, Andhra University, Visakhapatnam, 530003, India
| | - S Gaikwad
- CSIR-National Institute of Oceanography, Regional Centre, Mumbai, 400053, India
| | - Anirudh Ram
- CSIR-National Institute of Oceanography, Regional Centre, Mumbai, 400053, India
| | - U K Pradhan
- CSIR-National Institute of Oceanography, Regional Centre, Mumbai, 400053, India.
| | - S Sautya
- CSIR-National Institute of Oceanography, Regional Centre, Mumbai, 400053, India
| | - L Kumbhar
- CSIR-National Institute of Oceanography, Regional Centre, Mumbai, 400053, India
| | - P B Udayakrishnan
- CSIR-National Institute of Oceanography, Regional Centre, Mumbai, 400053, India
| | - V Siddaiha
- Department of Organic Chemistry and Food, Drug and Water, Andhra University, Visakhapatnam, 530003, India
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Yadav KK, Gupta N, Prasad S, Malav LC, Bhutto JK, Ahmad A, Gacem A, Jeon BH, Fallatah AM, Asghar BH, Cabral-Pinto MMS, Awwad NS, Alharbi OKR, Alam M, Chaiprapat S. An eco-sustainable approach towards heavy metals remediation by mangroves from the coastal environment: A critical review. MARINE POLLUTION BULLETIN 2023; 188:114569. [PMID: 36708616 DOI: 10.1016/j.marpolbul.2022.114569] [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: 03/08/2022] [Revised: 12/27/2022] [Accepted: 12/31/2022] [Indexed: 06/18/2023]
Abstract
Mangroves provide various ecosystem services, carbon sequestration, biodiversity depository, and livelihoods. They are most abundant in marine and coastal ecosystems and are threatened by toxic contaminants like heavy metals released from various anthropogenic activities. However, they have significant potential to survive in salt-driven environments and accumulate various pollutants. The adverse effects of heavy metals have been extensively studied and recognized as toxic to mangrove species. This study sheds light on the dynamics of heavy metal levels, their absorption, accumulation and transport in the soil environment in a mangrove ecosystem. The article also focuses on the potential of mangrove species to remove heavy metals from marine and coastal environments. This review concludes that mangroves are potential candidates to clean up contaminated water, soil, and sediments through their phytoremediation ability. The accumulation of toxic heavy metals by mangroves is mainly through roots with limited upward translocation. Therefore, promoting the maintenance of biodiversity and stability in the coastal environment is recommended as an environmentally friendly and potentially cost-effective approach.
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Affiliation(s)
- Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal 462044, India; Department of Civil and Environmental Engineering, Faculty of Engineering, PSU Energy Systems Research Institute, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
| | - Neha Gupta
- Institute of Environment and Development Studies, Bundelkhand University, Jhansi 284128, India
| | - Shiv Prasad
- Division of Environment Science, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Lal Chand Malav
- ICAR-National Bureau of Soil Survey & Land Use Planning, Regional Centre, Udaipur 313001, India
| | - Javed Khan Bhutto
- Department of Electrical Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia
| | - Akil Ahmad
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Amel Gacem
- Department of Physics, Faculty of Sciences, University 20 Août 1955, Skikda 21000, Algeria
| | - Byong-Hun Jeon
- Department of Earth Resources & Environmental Engineering, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Ahmed M Fallatah
- Department of Chemistry, College of Science, Taif University, Al-Haweiah, Taif 21944, Saudi Arabia
| | - Basim H Asghar
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Marina M S Cabral-Pinto
- Geobiotec Research Centre, Department of Geoscience, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Nasser S Awwad
- Department of Chemistry, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | | | - Manawwer Alam
- Department of Chemistry, College of Science, Kind Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Sumate Chaiprapat
- Department of Civil and Environmental Engineering, Faculty of Engineering, PSU Energy Systems Research Institute, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand.
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14
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Chen S. Mechanism of Zn alleviates Cd toxicity in mangrove plants ( Kandelia obovata). FRONTIERS IN PLANT SCIENCE 2023; 13:1035836. [PMID: 36816484 PMCID: PMC9932546 DOI: 10.3389/fpls.2022.1035836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 12/09/2022] [Indexed: 06/18/2023]
Abstract
Cadmium (Cd) pollution is very common and serious in mangrove ecosystems in China. Zinc (Zn) has been used to reduce Cd accumulation in plants, and phenolic acid metabolism plays an important role in plant response to stress. In present study, in order to clarify whether Zn alleviates Cd toxicity in mangrove plants through phenolic acid metabolism, the Cd-contaminated Kandelia obovata plants were treated with different concentrations of (0, 80,300, and 400 mg·kg-1) ZnSO4 in a set of pot experiments and the biomass, the contents of Cd, Zn, soluble sugar, chlorophyll and the activities of 1,1-diphenyl-2-picrylhydrazyl (DPPH), ferric-reducing antioxidant power (FRAP), l-phenylalanine ammonia-lyase (PAL), shikimic acid dehydrogenase (SKDH), cinnamyl alcohol dehydrogenase (CAD) and polyphenol oxidase (PPO) in the leaves were analyzed. The results showed that Cd contents in the leaves of Kandelia obovata ranged from 0.077 to 0.197 mg·kg-1 under different treatments, and Zn contents ranged from 90.260 to 114.447 mg·kg-1. Low-dose ZnSO4 treatment (80 mg·kg-1) performed significant positive effects on the biomass, phenolic acid metabolism-related enzyme activities, antioxidant capacity, and chlorophyll and soluble sugar contents in the leaves of Cd-contaminated mangrove plants. At the meantime, the addition of low-dose ZnSO4 promoted the biosynthesis of hydroxycinnamic acid, hydroxybenzoic acid, and enhanced the plant antioxidant capacity, thus alleviated Cd toxicity in mangrove plants.
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15
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Lang T, Tam NFY, Hussain M, Ke X, Wei J, Fu Y, Li M, Huang X, Huang S, Xiong Z, Wu K, Li F, Chen Z, Hu Z, Gao C, Yang Q, Zhou H. Dynamics of heavy metals during the development and decomposition of leaves of Avicennia marina and Kandelia obovata in a subtropical mangrove swamp. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 855:158700. [PMID: 36113807 DOI: 10.1016/j.scitotenv.2022.158700] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/04/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
In mangrove wetlands, leaves make up a high proportion of the plant biomass and can accumulate heavy metals from contaminated sediment. Despite this, it is still unclear how heavy metal concentrations in leaves change as they develop and how metals in senescence leaves are recycled back into the mangrove ecosystems during decomposition. The present study aims to investigate the dynamics of six heavy metals (Cu, Zn, Cr, Ni, Cd, and Pb) in leaves of two common mangrove plants, Avicennia marina and Kandelia obovata, at different stages of development (young, mature, and senescent) and leaf litter decomposition (from 0 to 20 weeks). Based on litterbag experiments in a subtropical mangrove swamp, both plant species showed similar trends in alternations of the six heavy metals during leaf development, that was, decreased in Cu and Zn but increased in Pb, while Cr, Ni, and Cd remained steady. All heavy metals in litter gradually increased in concentration during decomposition. By the end of the 20-weeks decomposition, the concentrations of Cu, Zn, and Cd in decayed leaves were comparable to those in sediment, with Cu, Zn, and Cd at approximately 18, 75, and 0.2 mg·kg-1, respectively, while Cr (66 mg·kg-1), Ni (65 mg·kg-1), and Pb (55 mg·kg-1) were lower than those in sediment, indicating that metals were not retained in litter but recycled back to the sediment. Tannins in mangrove leaf litter might chelate heavy metals, affecting their migration and transformation of heavy metals in estuarine mangrove wetlands. The findings of our study provide insight into the interactions between toxic heavy metals and mangrove plant species during leaf development, representing the first example of how most metals would be retained in leaf litter during decomposition, thereby reducing their release to estuarine and marine ecosystems.
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Affiliation(s)
- Tao Lang
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China; College of Physics and Optoelectronic Engineering, Shenzhen University, 518060 Shenzhen, China; Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Nora Fung-Yee Tam
- Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China; School of Science and Technology, The Hong Kong Metropolitan University, Ho Man Tin, Kowloon 999077, Hong Kong, China
| | - Muzammil Hussain
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China; College of Physics and Optoelectronic Engineering, Shenzhen University, 518060 Shenzhen, China; Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Xinran Ke
- Institute of Ecology, College of Urban and Environmental Sciences, Peking University, 100091 Beijing, China
| | - Jian Wei
- Institute of Ecology, College of Urban and Environmental Sciences, Peking University, 100091 Beijing, China
| | - Yijian Fu
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China; Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Mingdang Li
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China; Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Xiazi Huang
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China
| | - Shuyan Huang
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China; Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Zhangjing Xiong
- Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Kunhua Wu
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China; Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Fenglan Li
- Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China; School of Science and Technology, The Hong Kong Metropolitan University, Ho Man Tin, Kowloon 999077, Hong Kong, China
| | - Zhiteng Chen
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China; Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Zhangli Hu
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China
| | - Changjun Gao
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, China
| | - Qiong Yang
- Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China
| | - Haichao Zhou
- MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Shenzhen Key Laboratory of Marine Bio-Resource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, 518060 Shenzhen, China; Greater Bay Area Coastal Mangrove Wetland Research & Development Centre, Guangdong Neilingding Futian National Nature Reserve, 518040 Shenzhen, China.
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16
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Guo Y, Ke X, Zhang J, He X, Li Q, Zhang Y. Distribution, Risk Assessment and Source of Heavy Metals in Mangrove Wetland Sediments of Dongzhai Harbor, South China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1090. [PMID: 36673847 PMCID: PMC9859084 DOI: 10.3390/ijerph20021090] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 05/22/2023]
Abstract
Heavy metals are common environmental contaminants that are toxic, non-biodegradable, and bioaccumulative. They can bioaccumulate through the food chain and present a risk to both public health and ecology. Therefore, this study takes the mangrove wetland of Dongzhai Harbor as an example. The concentrations of heavy metals such as As, Cd, Cr, Cu, Ni, Pb, and Zn in the surface sediments of mangrove wetlands were measured to reveal their distribution, the contamination level was assessed, and the sources of contamination were analyzed. The distribution of Cr, Zn, Ni, Pb, Cu, and Cd concentrations are: Yanfeng East River > Sanjiang River > Yanzhou River > Yanfeng West River, while the As concentration in the Yanfeng West River is greater than that in the Yanfeng East River. According to the correlation analysis, the concentrations of Cr, Zn, Ni, Cu, and Cd are significantly and positively correlated with total organic carbon (TOC), total phosphorus (TP), total nitrogen (TN), and salinity (SAL) and shared a significantly negative correlation with pH. There is moderate contamination risk of As and slight contamination risk of Cd, Cr, Cu, Ni, Pb, and Zn in most regions within the study area. Cd, Cr, Cu, Ni, Pb, and Zn exhibit the same sources, which are mainly influenced by human sources such as aquaculture, agricultural cultivation, and livestock farming, while the source of As comes from aquaculture.
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Affiliation(s)
- Yuan Guo
- School of Environmental Studies, China University of Geosciences, Wuhan 430078, China
| | - Xianzhong Ke
- Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, China
| | - Jingxian Zhang
- School of Environmental Studies, China University of Geosciences, Wuhan 430078, China
| | - Xinhui He
- School of Environmental Studies, China University of Geosciences, Wuhan 430078, China
| | - Qinghua Li
- Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, China
| | - Yanpeng Zhang
- Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences), Wuhan 430205, China
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17
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Celis-Hernández O, Ontiveros-Cuadras JF, Ward RD, Girón-García MP, Pérez-Ceballos RY, Canales-Delgadillo JC, Acevedo-Granados IV, Santiago-Pérez S, Armstrong-Altrin JS, Merino-Ibarra M. Biogeochemical behaviour of cadmium in sediments and potential biological impact on mangroves under anthropogenic influence: A baseline survey from a protected nature reserve. MARINE POLLUTION BULLETIN 2022; 185:114260. [PMID: 36368083 DOI: 10.1016/j.marpolbul.2022.114260] [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: 08/23/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Cadmium is a toxic element and its effects are well understood for human health, but its biogeochemical behaviour is still poorly studied and understood in natural ecosystems. This work addresses knowledge gaps concerning its presence, biogeochemical behaviour and impacts in mangrove ecosystems. Through geochemical data and multivariate analysis (i.e., factor and cluster analysis) of data from mangroves of Isla del Carmen, one of the largest extents in Mexico we explored the biogeochemical behaviour of Cd, a potentially toxic element, to identify its anthropogenic sources and interactions with sediments. Pollution indices, including enrichment factor (EF), geo-accumulation index (Igeo), sediment quality guidelines (SQG) and toxicological studies were used to assess the biological impacts of Cd and infer the natural levels tolerated by mangrove trees that form the basis of this natural ecosystem. Our results highlighted that Cd accumulation is driven by interactions between organic matter (OM), sulphur and fine particles; whereas enrichment factor showed values of 6.9 (EF) and 3.5 (EF) associated with point sources and ranged between 2 and 2.9 (EF) in relation to non-point sources. Finally, our geochemical approach revealed that Cd enrichment originates from urban activities and from the poor management of urban residuals.
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Affiliation(s)
- Omar Celis-Hernández
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Estación el Carmen, 24157 Ciudad del Carmen, Campeche, Mexico; Dirección de Cátedras CONACYT, Av. Insurgentes Sur 1582, Alcaldía Benito Juárez, 03940 Ciudad de México, Mexico.
| | - Jorge Feliciano Ontiveros-Cuadras
- Unidad Académica de Procesos Oceánicos y Costeros, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria 04510, Mexico
| | - Raymond D Ward
- Centre for Aquatic Environments, University of Brighton, Cockcroft Building, Moulsecoomb, Brighton BN2 4GJ, United Kingdom; Institute of Agriculture and Environmental Sciences, Estonia University of Life Sciences, Kreutzwaldi 5, EE-51014 Tartu, Estonia; Colégio de Estudos Avançados, Universidade Federal do Ceará, Campus do Pici, CEP 60455-760 Fortaleza, CE, Brazil
| | - María Patricia Girón-García
- Laboratorio de Fluorescencia de Rayos X. LANGEM, Instituto de Geología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacan, 04510 Ciudad de México, Mexico
| | - Rosela Yazmin Pérez-Ceballos
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Estación el Carmen, 24157 Ciudad del Carmen, Campeche, Mexico; Dirección de Cátedras CONACYT, Av. Insurgentes Sur 1582, Alcaldía Benito Juárez, 03940 Ciudad de México, Mexico
| | - Julio César Canales-Delgadillo
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Estación el Carmen, 24157 Ciudad del Carmen, Campeche, Mexico; Dirección de Cátedras CONACYT, Av. Insurgentes Sur 1582, Alcaldía Benito Juárez, 03940 Ciudad de México, Mexico
| | - Inna Valeria Acevedo-Granados
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Estación el Carmen, 24157 Ciudad del Carmen, Campeche, Mexico
| | - Susana Santiago-Pérez
- Unidad Académica de Procesos Oceánicos y Costeros, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria 04510, Mexico
| | - John S Armstrong-Altrin
- Unidad Académica de Procesos Oceánicos y Costeros, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria 04510, Mexico
| | - Martín Merino-Ibarra
- Unidad Academica de Ecología y Biodiversidad Acuática, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria 04510, Mexico
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18
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Dey G, Banerjee P, Maity JP, Sharma RK, Gnanachandrasamy G, Huang YH, Huang HB, Chen CY. Heavy metals distribution and ecological risk assessment including arsenic resistant PGPR in tidal mangrove ecosystem. MARINE POLLUTION BULLETIN 2022; 181:113905. [PMID: 35839665 DOI: 10.1016/j.marpolbul.2022.113905] [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: 03/28/2022] [Revised: 06/14/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
Heavy metals (HM) are the major proximate drivers of pollution in the mangrove ecosystem. Therefore, ecological risk (ER) due to HM distribution/concentration in core-sediment of Puzi mangrove region (Taiwan) was examined with tidal influence (TI) along with indigenous rhizospheric bacteria (IRB). The HM concentration was observed higher at active-tidal-sediment compared to partially-active-sediment. Geo-accumulation index (Igeo) and contamination factor (CF) indicated the tidal-sediment was highly contaminated with arsenic (As) and moderately contaminated with Lead (Pb) and Zinc (Zn). However, the pollution loading index (PLI) and degree of contamination (Cd) exhibited 'no pollution' and 'low-moderate degree of contamination', in the studied region respectively. The isolated IRB (Priestia megaterium, Bacillus safenis, Bacillus aerius, Bacillus subtilis, Bacillus velenzenesis, Bacillus lichenoformis, Kocuria palustris, Enterobacter hormaechei, Pseudomonus fulva, and Paenibacillus favisporus; accession number OM979069-OM979078) exhibited the arsenic resistant behavior with plant-growth-promoting characters (IAA, NH3, and P-solubilization), which can be used in mangrove reforestation and bioremediation of HM.
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Affiliation(s)
- Gobinda Dey
- Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan; Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Pritam Banerjee
- Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan; Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Jyoti Prakash Maity
- Department of Chemistry, School of Applied Sciences, KIIT Deemed to be University, Bhubaneswar, Odisha 751024, India
| | - Raju Kumar Sharma
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan; Department of Chemistry and Biochemistry, National Chung Cheng University, 168 University Road, Min-Hsiung, Chiayi County 62102, Taiwan
| | - Gopalakrishnan Gnanachandrasamy
- Department of Earth Sciences, School of Physical, Chemical, and Applied Sciences, Pondicherry University, Puducherry, 605014, India
| | - Yi-Hsun Huang
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Hsien-Bin Huang
- Department of Biomedical Sciences, Graduate Institute of Molecular Biology, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan
| | - Chien-Yen Chen
- Department of Earth and Environmental Sciences, National Chung Cheng University, 168 University Road, Ming-Shung, Chiayi County 62102, Taiwan; Center for Nano Bio-Detection, Center for Innovative Research on Aging Society, AIM-HI, National Chung Cheng University, Chiayi 62102, Taiwan.
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Li Y, Sun Z, Mao L, Hu X, Chen B, Li Y. Spatial variation and ecological risk assessment for heavy metals in marsh sediments in Fuzhou reach of the Min River, Southeast China. MARINE POLLUTION BULLETIN 2022; 180:113757. [PMID: 35596999 DOI: 10.1016/j.marpolbul.2022.113757] [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: 03/15/2022] [Revised: 05/06/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
To explore the pollution levels, sources and risks of heavy metals in sediments in Fuzhou reach of the Min River, the sediments involving in seven marsh types were sampled. Results showed that the concentrations of Pb, Zn and Cd in sediments declined from freshwater segment to estuarine segment. Higher levels of Cu, Cr and Ni in sediments generally occurred in estuarine segment. The highest levels of Pb and Cd were observed in bush swamp, while those of Cr, Ni, Zn and Cu occurred in mudflat. Cr, Cu, Zn and Ni probably shared common source, while Pb and Cd originated from another source. Pb and Cd were identified as heavy metals of primary concerns and the former showed high potential toxicity and high contributions to ΣTUs. Next step, the metal pollutions in sediments might be more serious if effective measures were not taken to control the loading of pollutants.
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Affiliation(s)
- Yajin Li
- Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, PR China; Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, PR China
| | - Zhigao Sun
- Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, PR China; Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, PR China; Institute of Geography, Fujian Normal University, Fuzhou 350007, PR China.
| | - Li Mao
- Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, PR China; Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, PR China
| | - Xingyun Hu
- Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, PR China; Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, PR China
| | - Bingbing Chen
- Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, PR China; Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, PR China
| | - Yanzhe Li
- Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou 350007, PR China; Fujian Provincial Key Laboratory for Subtropical Resources and Environment, Fujian Normal University, Fuzhou 350007, PR China
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20
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Li P, Li X, Bai J, Meng Y, Diao X, Pan K, Zhu X, Lin G. Effects of land use on the heavy metal pollution in mangrove sediments: Study on a whole island scale in Hainan, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 824:153856. [PMID: 35176367 DOI: 10.1016/j.scitotenv.2022.153856] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/29/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
In recent decades, mangrove ecosystems at coastal zone are experiencing rapid land-use conversion, however effects of land use on the heavy metal pollution in mangrove sediments still are not clear. This study investigated the concentration and distribution of heavy metals (including chromium (Cr), zinc (Zn), lead (Pb), copper (Cu), arsenic (As) and cadmium (Cd)) in different mangrove sediments with different land-use patterns along seashore of the whole Hainan island (with the third largest mangrove area of China). The effects of land use on the accumulation of heavy metals in these mangrove sediments are also analyzed. The results showed contaminations of ∑6Metals in this study following the order of arable lands (ARAB) > aquaculture ponds (AQUA) > riverine area (RIVER) > ecological area (ECOL) > construction area (CONS). Accumulation degree of As and Cd were high in the AQUA, ARAB, and RIVER area. As metal hotspots, ARAB, RIVER and AQUA area showed the deteriorated sediment quality with high pollution load index (>1). Redundancy discriminate analysis revealed that mangrove, paddy lands and aquaculture ponds related activities correlated well with the metal pollution. The results clearly revealed that different land uses would not only change the accumulation capacity of mangrove soil for heavy metals, but also contribute different sources of heavy metal pollution. These findings do help to facilitate land-use planning and contribute to guide a better mangrove wetland management at coastal zone.
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Affiliation(s)
- Ping Li
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China; Key Laboratory of Optoelectronic Devices and Systems, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Xinjian Li
- Central South Inventory and Planning, Institute of National Forestry and Grassland Administration, Changsha 410014, China
| | - Jiankun Bai
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Yuchen Meng
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Xiaoping Diao
- College of Life Science, Hainan Normal University, Haikou 571158, China
| | - Ke Pan
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Xiaoshan Zhu
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; South Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, China.
| | - Guanghui Lin
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
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21
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Xie Z, Zhu G, Xu M, Zhang H, Yi W, Jiang Y, Liang M, Wang Z. Risk assessment of heavy metals in a typical mangrove ecosystem - A case study of Shankou Mangrove National Natural Reserve, southern China. MARINE POLLUTION BULLETIN 2022; 178:113642. [PMID: 35421640 DOI: 10.1016/j.marpolbul.2022.113642] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/30/2022] [Accepted: 04/02/2022] [Indexed: 06/14/2023]
Abstract
Mangroves bear enormous ecosystem value, while the ecosystems are facing increasing environmental pressures. In this study, 73 samples of soil sediments in mangroves, paddy fields, grasslands, forests, and shrimp ponds were collected from Shankou Mangrove National Nature Reserve (SKMNNR), Guangxi Zhuang Autonomous Region, China. The pollution status and ecological risks of heavy metal elements of Cr, Ni, Cu, Zn, As, Cd, Pb, V, and Co were determined using the enrichment factor (EF), geoaccumulaton index (Igeo), and potential ecological risk index (PERI). The average concentration is shown to be substantially lower than the background value. In general, the Igeo values indicated that the pollution conditions of different land use types in SKMNNR are relatively minor. Most of the PERI values were at the moderate level. This study demonstrates that the current status of sediment quality in SKMNNR is relatively good, and the pollution level is relatively low. Large-scale coastal aquaculture development and industrial expansion should not no longer be permitted there.
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Affiliation(s)
- Zhenglei Xie
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China; Key Laboratory of Coastal Salt Marsh Ecosystems and Resources, Ministry of Natural Resources, China
| | - Gaoru Zhu
- Laboratory of Transport Pollution Control and Monitoring Technology, Transport Planning and Research Institute, Ministry of Transport of the People's Republic of China, Beijing 100028, China.
| | - Min Xu
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Hua Zhang
- Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, China
| | - Wenbin Yi
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Yinghui Jiang
- State Key Laboratory of Estuarine and Coastal Research (SKLEC), East China Normal University, Shanghai 200241, China
| | - Minxuan Liang
- South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510530, China
| | - Zaifeng Wang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China.
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22
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Araújo PRM, Biondi CM, do Nascimento CWA, da Silva FBV, Ferreira TO, de Alcântara SF. Geospatial modeling and ecological and human health risk assessments of heavy metals in contaminated mangrove soils. MARINE POLLUTION BULLETIN 2022; 177:113489. [PMID: 35325795 DOI: 10.1016/j.marpolbul.2022.113489] [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: 11/12/2021] [Revised: 02/20/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Heavy metal-contaminated wastes can threaten mangrove forests, one of the most biodiverse ecosystems in the world. The study evaluated the geospatial distribution of heavy metals concentrations in soils, the ecological and human health risks, and metal contents in soil fractions and mangrove organisms in the Botafogo estuary, Brazil, one of the most environmentally impacted estuaries in the country. The metal concentrations exceeded by up to 2.6-fold the geochemical background; 91%, 59%, 64%, 31%, and 82% of the soils were contaminated with Cr, Zn, Pb, Cu, and Ni, respectively. Adverse effects to the biota may occur due to Cr, Cu, Ni and Pb exposures. Contents of clay and organic matter were the main factors governing the distribution of metals in soil, contributing to up to 63% of the total variability. However, the geospatial modeling showed that the predictive ability of these variables varied spatially with the metal and location. The ecological and human health risks assessments indicated that the metal concentrations in soils are safe for the environment and human beings. There was a low transfer of metals from the soil to the biota, with values of sediment-biota accumulation factor (SBAF) and biological accumulation coefficients (BAC) lower than 1.0, except for Zn (SBAF = 13.1). The high Zn bioaccumulation by Crassostrea rhizophorae may be associated with the concentrations of Zn in the bioavailable fractions.
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Affiliation(s)
- Paula Renata Muniz Araújo
- Department of Agronomy, Federal Rural University of Pernambuco, Dom Manuel de Medeiros street, s/n - Dois Irmãos, 52171-900 Recife, PE, Brazil.
| | - Caroline Miranda Biondi
- Department of Agronomy, Federal Rural University of Pernambuco, Dom Manuel de Medeiros street, s/n - Dois Irmãos, 52171-900 Recife, PE, Brazil.
| | | | - Fernando Bruno Vieira da Silva
- Department of Agronomy, Federal Rural University of Pernambuco, Dom Manuel de Medeiros street, s/n - Dois Irmãos, 52171-900 Recife, PE, Brazil
| | - Tiago Osório Ferreira
- Soil Science Department, Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ/USP), Av. Pádua Dias 11, CEP 13418-900 Piracicaba, SP, Brazil.
| | - Silvia Fernanda de Alcântara
- Department of Agronomy, Federal Rural University of Pernambuco, Dom Manuel de Medeiros street, s/n - Dois Irmãos, 52171-900 Recife, PE, Brazil
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Yao W, Hu C, Yang X, Shui B. Spatial variations and potential risks of heavy metals in sediments of Yueqing Bay, China. MARINE POLLUTION BULLETIN 2021; 173:112983. [PMID: 34600167 DOI: 10.1016/j.marpolbul.2021.112983] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 09/11/2021] [Accepted: 09/16/2021] [Indexed: 05/12/2023]
Abstract
In this study, we determined the spatial variations and potential risks of heavy metals in the sediments of Yueqing Bay by assessing the relationship between metal concentrations and sediment physiochemical factors. We found higher sediment metal concentrations in the inner bay than in the central and outer bay, particularly with respect to Hg, Cu, and Pb concentrations. According to the sediment quality guidelines, the heavy metals had a toxicity incidence probability of 21%. Assessments of heavy metal contamination using the geo-accumulation index and potential ecological risk index suggest that Cr, As, Pb, and Hg likely pose low ecological risks, while Cu, Zn, and Cd were identified as priority pollutants and may pose moderate ecological risks to the ecosystem. Multivariate statistical analysis inferred the high influence of sediment texture, total organic carbon (TOC), and petroleum hydrocarbons (PHCs) on the distribution and fate of metals in sediment.
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Affiliation(s)
- Weimin Yao
- Wenzhou Marine Environmental Monitoring Center Station, State Oceanic Administration, Wenzhou 325011, China
| | - Chengye Hu
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Xiaolong Yang
- National Marine Environmental Monitoring Center, State Oceanic Administration, Dalian 116023, China
| | - Bonian Shui
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China
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24
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Rahman MS, Saha N, Ahmed ASS, Babu SMOF, Islam ARMT, Begum BA, Jolly YN, Akhter S, Choudhury TR. Depth-related dynamics of physicochemical characteristics and heavy metal accumulation in mangrove sediment and plant: Acanthus ilicifolius as a potential phytoextractor. MARINE POLLUTION BULLETIN 2021; 173:113160. [PMID: 34808545 DOI: 10.1016/j.marpolbul.2021.113160] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/17/2021] [Accepted: 11/12/2021] [Indexed: 06/13/2023]
Abstract
The focus of this study was to determine the depth-wise variability of physicochemical properties (i.e., pH, TOC, TN, and EC), and heavy metals (i.e., Pb, Cu, Zn, As, and Cr) concentration, and the associated biological and ecological risks of the mangrove sediment. The accumulation of metal contents and the phytoremediation and phytoextraction were also investigated in a mangrove species, Acanthus ilicifolius. The mangrove sediment consists of a higher proportion of sand fraction (56.6-74.7%) followed by clay (10-28%) and silt (10.1-15. 7%) fractions. The concentrations (mg/kg) of Pb, Cu, Zn, As, and Cr were ranged from 22.05-34.3, 8.58-22.77, 85.07-114, 5.56-12.91, and 0.98-5.12 in all the sediment layers. The hierarchy of the mean metal concentration in sediment was Zn (102 mg/kg) > Pb (25.6 mg/kg) > Cu (14.8 mg/kg) > As (8.79 mg/kg) > Cr (2.74 mg/kg) respectively. The examined metal concentrations were below the respective average shale values (ASVs). The degree of environmental, ecological, and biological risks was minimal according to various pollution indices like geoaccumulation index (Igeo), contamination factor (CF), and pollution load index (PLI). According to sediment quality guidelines (SQGs), the adverse biological risk effect was not likely to occur. The result of the potential ecological risk index (PERI) demonstrated that the study area was in the low-risk condition as the corresponded RI value < 100. A combined influence of geogenic and anthropogenic factors was identified as the metal sources by multivariate analysis. The study found that the accumulation rate of the metal contents was higher in leaves than that of roots. The mean descending metal concentration values were Zn (107) > Pb (28. 7) > Cu (16.9) > As (11.2) > Cr (4.99) in leaves and Zn (104.32) > Pb (27.02) > Cu (15.29) > As (10.39) > Cr (3.80) in roots. The translocation and bioaccumulation factors of heavy metals suggested that the mangrove plant species, A. ilicifolius can be used for phytoremediation and phytoextraction since the bio-concentration factor and translocation factor > 1. The studied species exhibited the metal tolerance associated with two following strategies, metal exclusion, and metal accumulation. However, excess metal tolerance can impact the surrounding marine environment.
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Affiliation(s)
- M Safiur Rahman
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh.
| | - Narottam Saha
- Sustainable Minerals Institute, Center for Mined Land Rehabilitation, The University of Queensland, St Lucia, QLD 4072, Australia.
| | | | | | | | - Bilkis A Begum
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh.
| | - Yeasmin N Jolly
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh
| | - Shrin Akhter
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh
| | - Tasrina R Choudhury
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh
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25
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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.
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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.)
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26
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Díaz-de-Alba M, Granado-Castro MD, Galindo-Riaño MD, Casanueva-Marenco MJ. Comprehensive Assessment and Potential Ecological Risk of Trace Element Pollution (As, Ni, Co and Cr) in Aquatic Environmental Samples from an Industrialized Area. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:7348. [PMID: 34299800 PMCID: PMC8304580 DOI: 10.3390/ijerph18147348] [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: 05/27/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 11/17/2022]
Abstract
A global assessment of arsenic (As), nickel (Ni), cobalt (Co) and chromium (Cr) was performed in environmental samples from an important industrial bay. Different fractions of water, sediments and tissues from four species of fish were analysed. Samples were collected from selected sampling sites during four consecutive samplings in spring and autumn seasons, in order to evaluate concentrations and their possible correlations among the aquatic compartments. While a higher availability of Cr and Ni was found in water, Co and As were the most available elements in sediments. In fish, the liver was the tissue with the highest proportion of As and Co, and gills showed the highest concentrations of Ni and Cr. Significance differences were observed among sites showing the pollution sources. In sediments, high correlations were found between total Co content and the most available fractions. Total Ni content highly correlated with the oxidisable fraction, while Cr total content tightly correlated with the least available fractions. Quality guideline values for sediments were frequently exceeded. In sediments and biota, concentrations were slightly higher than in other ecosystems, indicating that maritime, industrial and urban activities are affecting this type of ecosystem with great anthropogenic influence.
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Affiliation(s)
| | - M. D. Granado-Castro
- Department of Analytical Chemistry, Institute of Biomolecules (INBIO), Faculty of Sciences, CEI-MAR, Campus Río San Pedro, University of Cádiz, ES-11510 Puerto Real, Spain; (M.D.-d.-A.); (M.D.G.-R.); (M.J.C.-M.)
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27
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Sediment Contamination by Heavy Metals and PAH in the Piombino Channel (Tyrrhenian Sea). WATER 2021. [DOI: 10.3390/w13111487] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Sediment contamination is of major concern in areas affected by heavy maritime traffic. The spatial variation and contamination of 11 trace elements and 17 PAHs in surface sediments were studied along a 31 km transect along the seaway from the port of Piombino (Tuscany) to the port of Portoferraio (Elba Island) in the Northern Tyrrhenian Sea. Heavy metal contamination was detected at sites near Piombino (Ni, Pb, Hg, Cu and Zn) and at sites near Portoferraio (Pb, Zn, Hg, Cr and Cd). Each of the 35 sampled sites showed PAH contamination, with the highest concentrations at sites near Portoferraio. The most abundant isomers detected were 2- and 4-ring PAHs. PAH ratio analysis showed a prevalence of PAHs of pyrolytic origin. High values of PAHs and heavy metals were related to high sediment water content, TOC, silt, and clay content. Arsenic increased with increasing depth. The correlation between concentrations of metals and PAHs suggests common anthropogenic sources and is of concern for possible synergistic adverse effects on the biota.
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28
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Sun H, He Z, Zhang M, Yen L, Cao Y, Hu Z, Peng Y, Lee SY. Spatial variation of soil properties impacted by aquaculture effluent in a small-scale mangrove. MARINE POLLUTION BULLETIN 2020; 160:111511. [PMID: 32861934 DOI: 10.1016/j.marpolbul.2020.111511] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 06/11/2023]
Abstract
Small-scale mangroves serve ecological functions similar to large-scale mangroves regarding biological conservation, environmental purification, and supporting biogeochemical processes. The rising aquaculture neighboring mangroves results in their serving as an important sink for massive nutrients and pollutants from aquaculture effluent. We assessed how long-term aquaculture effluent discharge influenced the soil properties of a mangrove-tidal flat continuum using field survey and geostatistics. Common soil physical-chemical properties presented significant spatial variability. Continued aquaculture effluent discharge caused a significant cumulation of soil total organic carbon (SOC) (64.13 g·kg-1), total nitrogen (TN) (2.44 g·kg-1) and total phosphorus (TP) (1.12 g·kg-1) in the mangrove soil, which were as 2-3 times as those on the mudflat. Most of the soil properties changed significantly with increasing distance from the effluent outlet along a tidal channel, and the maximum concentrations of SOC, TN and TP all occurred at 50 m away from the outlet. The results of principal component analysis indicated that aquaculture effluent significantly affected the spatial pattern of soil properties along the mangrove-tidal flat continuum. Continued aquaculture effluent input rendered extensive accumulation of SOC, TN and TP in the mangroves. The spatial heterogeneity of mangrove is the key driver to process the nutrient input spatially differently.
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Affiliation(s)
- Huaye Sun
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-Sen University, Guangzhou 510006, China
| | - Ziying He
- School of Marine Science, Sun Yat-Sen University, Zhuhai 519000, China
| | - Min Zhang
- Guangdong Institute of Applied Biological Resources, Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangzhou 510260, China
| | - Lingwei Yen
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-Sen University, Guangzhou 510006, China
| | - Yingjie Cao
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-Sen University, Guangzhou 510006, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Sun Yat-Sen University, Zhuhai 519000, China
| | - Zhan Hu
- School of Marine Science, Sun Yat-Sen University, Zhuhai 519000, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Sun Yat-Sen University, Zhuhai 519000, China
| | - Yisheng Peng
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-Sen University, Guangzhou 510006, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Sun Yat-Sen University, Zhuhai 519000, China.
| | - Shing Yip Lee
- Simon F S Li Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
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Spatial and Temporal Variation in Microbial Diversity and Community Structure in a Contaminated Mangrove Wetland. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10175850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Field and laboratory investigations were conducted to characterize bacterial diversity and community structure in a badly contaminated mangrove wetland adjacent to the metropolitan area of a megacity in subtropical China. Next-generation sequencing technique was used for sequencing the V4–V5 region of the 16s rRNA gene on the Illumina system. Collectively, Proteobacteria, Chloroflexi, Planctomycetes, Actinobacteria and Bacteroidetes were the predominant phyla identified in the investigated soils. A significant spatial variation in bacterial diversity and community structure was observed for the investigated mangrove soils. Heavy metal pollution played a key role in reducing the bacterial diversity. The spatial variation in soil-borne heavy metals shaped the spatial variation in bacterial diversity and community structure in the study area. Other environmental factors such as total carbon and total nitrogen in the soils that are affected by seasonal change in temperature could also influence the bacterial abundance, diversity and community structure though the temporal variation was relatively weaker, as compared to spatial variation. The bacterial diversity index was lower in the investigated site than in the comparable reference site with less contaminated status. The community structure in mangrove soils at the current study site was, to a remarkable extent, different from those in the tropical mangrove wetlands around the world.
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Satheeswaran T, Yuvaraj P, Damotharan P, Karthikeyan V, Jha DK, Dharani G, Balasubramanian T, Kirubagaran R. Assessment of trace metal contamination in the marine sediment, seawater, and bivalves of Parangipettai, southeast coast of India. MARINE POLLUTION BULLETIN 2019; 149:110499. [PMID: 31430667 DOI: 10.1016/j.marpolbul.2019.110499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/13/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
Industrial and domestic discharge into the coastal environment has driven us to propose an integrated approach to delineate stations contaminated with metals on the Parangipettai coast by collecting sediment and seawater samples monthly at 18 stations from 2015 to 2017. Descriptive statistics revealed that the concentrations of some metals in the sediment and seawater samples were beyond the permissible level. Further, factor analysis showed a sampling adequacy of 0.90 with high positive loading for Ni (0.94), Cd (0.91), Co (0.90), Pb (0.89), and Zn (0.87) in sediment samples. The degree of contamination by metals was evaluated using pollution indices. The results of the contamination index revealed that some stations in the study area were moderately polluted, and those of the ecological index showed that open sea was under low risk while other stations were in the moderate-to-high-risk category. The results obtained are essential to establish the reference condition for a comparative study in similar environments in the tropical regions.
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Affiliation(s)
- Thangaraj Satheeswaran
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India.
| | - Purushothaman Yuvaraj
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - Palani Damotharan
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - Velmurugan Karthikeyan
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - Dilip Kumar Jha
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - Gopal Dharani
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India.
| | - Thangavel Balasubramanian
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
| | - Ramalingam Kirubagaran
- Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences (Govt. of India), Chennai 600100, India
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31
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Bastakoti U, Robertson J, Bourgeois C, Marchand C, Alfaro AC. Temporal variations of trace metals and a metalloid in temperate estuarine mangrove sediments. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:780. [PMID: 31786680 DOI: 10.1007/s10661-019-7916-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Mangrove sediments are strong modulators of organic matter (OM) content and pollutant dynamics, acting both as sinks and sources of these components. This study aimed to assess temporal dynamics of OM within temperate mangrove sediments and their ability to sequester pollutants. Specifically, levels of trace metals (Fe, Cu, Zn, Pb, Cd) and a metalloid (As) were examined within mangrove and mudflat sediments located in a high-energy environment in Mangawhai Harbour Estuary, northern New Zealand. Sediment cores were collected from a mangrove stand and adjacent mudflats at three sediment depths during different months over a year. Variations in OM and elements were compared to rainfall and temperature patterns observed during the sampling period. All element concentrations, except for those of As, were significantly higher in mangrove compared to mudflat sediments during the entire sampling period. This is consistent with the well-reported ability of mangroves to trap suspended particles and OM. In addition, we observed a decreasing trend in trace metal concentrations with increasing sediment depth within mangrove habitat, which correlated well with decreasing OM content. Our results also suggested that most elements had different, but significant, temporal variations throughout the year, especially in mangrove sediments. Overall, the concentrations of Cu, Zn, Pb, Cd, and As in mangrove sediments increased during summer, whereas maximum levels of Fe and OM were observed in winter. This temporal pattern was determined to be related to OM and redox cycling as a result of changes in effluent input rates and physical/chemical environments during different seasons.
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Affiliation(s)
- Ujwal Bastakoti
- Institute for Applied Ecology, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - John Robertson
- Institute for Applied Ecology, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
| | - Carine Bourgeois
- Institute for Applied Ecology, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand
- IMPMC, Institut de Recherche pour le Développement (IRD), UPMC, CNRS, MNHN, Noumea, New Caledonia
| | - Cyril Marchand
- Université de la Nouvelle-Calédonie (UNC), ISEA, EA 3325, Noumea, New Caledonia
| | - Andrea C Alfaro
- Institute for Applied Ecology, School of Science, Faculty of Health and Environmental Sciences, Auckland University of Technology, Auckland, New Zealand.
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Chen Y, Huang H, Ding Y, Chen W, Luo J, Li H, Wu J, Chen W, Qi S. Trace metals in aquatic environments of a mangrove ecosystem in Nansha, Guangzhou, South China: pollution status, sources, and ecological risk assessment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:629. [PMID: 31511991 DOI: 10.1007/s10661-019-7732-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 07/31/2019] [Indexed: 06/10/2023]
Abstract
Mangrove forests are widely located along coastlines. They have been identified to be inimitable and dynamic ecosystems. This study investigated the trace metals in mangrove water and surface sediments of Nansha, Guangzhou, China. Zn (148.42 ± 247.47 μg L-1) was the most abundant metal in waters, followed by As (82.34 ± 118.95 μg L-1), Pb (22.96 ± 120.50 μg L-1), and Ni (19.42 ± 47.84 μg L-1). In sediments, the most abundant metal was Fe (27.04 ± 1.91 g kg-1), followed by Mn (1049.04 ± 364.11 mg kg-1), Zn (566.33 ± 244.37 mg kg-1), and Cr (106.9 ± 28.51 mg kg-1). Higher contents of trace metals were detected in vicinity areas of the river mouth. The results of pollution indexes, including contamination factor, enrichment factor, and geo-accumulation index, indicated the pollution of Cd, Cu, Pb, and Zn in sediments. The Spearman correlation and cluster analysis were used to evaluate the metal sources. In water, the significant correlations among Zn and water chemical parameters (Na, Mg, K, Ca, conductivity, pH, and Cl) might indicate the natural source of Zn from the seawater. Water sampling sites in estuaries and coastal areas were clustered separately, which might indicate the influences of upstream water and the seawater, respectively. In sediments, the significant relationships among Cd, Pb, and Zn concentrations were likely to imply the emissions from industries and exploitation of the Pb-Zn mine. The occurrence of Cr and Cu in sediments can be attributed to the spills of lubricants or oil. Cd in sediments could cause serious ecological risk.
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Affiliation(s)
- Yingjie Chen
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Huanfang Huang
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Yang Ding
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Wenwen Chen
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
| | - Jie Luo
- College of Resources and Environment, Yangtze University, Wuhan, 430100, China
| | - Hui Li
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Jian Wu
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Wei Chen
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Shihua Qi
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China.
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China.
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33
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Shi C, Ding H, Zan Q, Li R. Spatial variation and ecological risk assessment of heavy metals in mangrove sediments across China. MARINE POLLUTION BULLETIN 2019; 143:115-124. [PMID: 31789145 DOI: 10.1016/j.marpolbul.2019.04.043] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/04/2019] [Accepted: 04/16/2019] [Indexed: 06/10/2023]
Abstract
The spatial variations of nine heavy metals in the surface sediments of six Avicennia marina mangrove wetlands across China were investigated. These were Yunxiao, Futian (FT), Zhanjiang, Fangchenggang (FCG), Dongfang (DF), and Dongzhaigang (DZG). Results showed that environmental factors, such as organic matter and sediment grain size, affected heavy metal distribution. The high heavy metal levels in mangrove sediments may be due to their large retention capacity. The dominant heavy metals were Zn, Cr, Pb, Cu, and Cd. Pollution was highest at FT and lowest at FCG. The principal component analysis indicated that Zn, Cd, Cu, Ni, Cr, and Pb were mainly derived from anthropogenic activities. Ecological risk assessments showed that FT was the most polluted area with considerable ecological risk, whereas pollution levels were lowest at FCG, DF, and DZG. This study provides the first integrated analysis of heavy metal pollution of sediments across China.
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Affiliation(s)
- Cong Shi
- School of Environmental and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China
| | - Huan Ding
- School of Environmental and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China
| | - Qijie Zan
- Guangdong Neilingding Futian National Nature Reserve, Shenzhen 518000, China
| | - Ruili Li
- School of Environmental and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China.
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34
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Chai M, Li R, Ding H, Zan Q. Occurrence and contamination of heavy metals in urban mangroves: A case study in Shenzhen, China. CHEMOSPHERE 2019; 219:165-173. [PMID: 30537589 DOI: 10.1016/j.chemosphere.2018.11.160] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/21/2018] [Accepted: 11/25/2018] [Indexed: 06/09/2023]
Abstract
Urban mangroves are affected by surrounding anthropogenic activities. Heavy metals in urban mangroves lack systematic evaluation, and their relationships with surrounding anthropogenic activities have not been explored with quantified data. In this study, urban mangroves with different urban functional zonings were selected in Shenzhen, South China, including: Shajing mangrove (SJM) and Xixiang mangrove (XXM) featured with industry district, Futian mangrove (FTM) and Baguang mangrove (BGM) featured with central business district and ecological preserve, respectively. The distribution, ecological risk, and pollution sources of heavy metals were determined. Heavy metals' relationships with surrounding functional zonings were also explored. The levels of Cu, Zn, Pb, Ni and Cr in SJM were significantly higher than the other mangrove stands, which may be related to its proximity to point-source discharges of Maozhou River in Pearl River Estuary, China. Potential ecological risk index, pollution load index, mean PEL quotient, mean effect range median quotient, and total toxic unit showed the highest ecological risk in SJM, followed by XXM, FTM, and BGM. With the order of BGM - FTM - XXM - SJM, Zn, Ni, and Cr presented dominantly in the labile fraction, demonstrating increased anthropogenic impacts. Heavy metals in FTM and BGM were mainly from anthropogenic and lithogenic originations, with only anthropogenic origination of heavy metals to be detected in SJM and XXM. Heavy metal pollution was highest in SJM featured with industry district, and metal products industry in surrounding district should attract special attention due to its affinity for heavy metal accumulation in urban mangroves.
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Affiliation(s)
- Minwei Chai
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Ruili Li
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China.
| | - Huan Ding
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Qijie Zan
- Guangdong Neilingding Futian National Nature Reserve, Shenzhen, 518000, China
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35
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Li R, Qiu GY, Chai M, Shen X, Zan Q. Effects of conversion of mangroves into gei wai ponds on accumulation, speciation and risk of heavy metals in intertidal sediments. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2019; 41:159-174. [PMID: 29936672 DOI: 10.1007/s10653-018-0130-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 06/08/2018] [Indexed: 06/08/2023]
Abstract
Mangroves are often converted into gei wai ponds for aquaculture, but how such conversion affects the accumulation and behavior of heavy metals in sediments is not clear. The present study aims to quantify the concentration and speciation of heavy metals in sediments in different habitats, including gei wai pond, mangrove marsh dominated by Avicennia marina and bare mudflat, in a mangrove nature reserve in South China. The results showed that gei wai pond acidified the sediment and reduced its electronic conductivity and total organic carbon (TOC) when compared to A. marina marsh and mudflat. The concentrations of Cd, Cu, Zn and Pb at all sediment depths in gei wai pond were lower than the other habitats, indicating gei wai pond reduced the fertility and the ability to retain heavy metals in sediment. Gei wai pond sediment also had a lower heavy metal pollution problem according to multiple evaluation methods, including potential ecological risk coefficient, potential ecological risk index, geo-accumulation index, mean PEL quotients, pollution load index, mean ERM quotients and total toxic unit. Heavy metal speciation analysis showed that gei wai pond increased the transfer of the immobilized fraction of Cd and Cr to the mobilized one. According to the acid-volatile sulfide (AVS) and simultaneously extracted metals (SEM) analysis, the conversion of mangroves into gei wai pond reduced values of ([SEM] - [AVS])/foc, and the role of TOC in alleviating heavy metal toxicity in sediment. This study demonstrated the conversion of mangrove marsh into gei wai pond not only reduced the ecological purification capacity on heavy metal contamination, but also enhanced the transfer of heavy metals from gei wai pond sediment to nearby habitats.
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Affiliation(s)
- Rongyu Li
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Guo Yu Qiu
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China.
| | - Minwei Chai
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Xiaoxue Shen
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Qijie Zan
- Guangdong Neilingding Futian National Nature Reserve, Shenzhen, 518000, China
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36
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Chai M, Li R, Tam NFY, Zan Q. Effects of mangrove plant species on accumulation of heavy metals in sediment in a heavily polluted mangrove swamp in Pearl River Estuary, China. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2019; 41:175-189. [PMID: 29876676 DOI: 10.1007/s10653-018-0107-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 03/29/2018] [Indexed: 05/06/2023]
Abstract
The present study compared accumulation of heavy metals in a mangrove swamp dominated by Kandelia obovata with that by Sonneratia apetala in Pearl River Estuary, China. The results showed that the concentrations of heavy metals at all sediment depths in the S. apetala site were significantly higher than that in K. obovata. The geo-accumulation index and potential ecological risk index also showed that S. apetala sediment had a higher contamination of heavy metals, especially Cd. S. apetala significantly altered the biogeochemical cycles of Cd, lead (Pb), nickel (Ni) and chromium (Cr). In S. apetala sediment, TOC played an important role in sequestering heavy metals as reflected by its positive correlations with Zn and Pb. This study demonstrated the importance of plant species in altering soil quality and heavy metal accumulation, and S. apetala is more efficiently working as a pollution barrier than K. obovata.
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Affiliation(s)
- Minwei Chai
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China
| | - Ruili Li
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, China.
| | - Nora Fung Yee Tam
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon Tong, Hong Kong, China
| | - Qijie Zan
- Guangdong Neilingding Futian National Nature Reserve, Shenzhen, 518000, China
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37
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Zhao Y, Xu M, Liu Q, Wang Z, Zhao L, Chen Y. Study of heavy metal pollution, ecological risk and source apportionment in the surface water and sediments of the Jiangsu coastal region, China: A case study of the Sheyang Estuary. MARINE POLLUTION BULLETIN 2018; 137:601-609. [PMID: 30503473 DOI: 10.1016/j.marpolbul.2018.10.044] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 10/07/2018] [Accepted: 10/17/2018] [Indexed: 06/09/2023]
Abstract
The concentrations of seven heavy metals in the surface water and sediments from the Sheyang Estuary were investigated to determine their spatial distribution, source apportionment and the potential ecological risks. The relative concentrations of heavy metals in the sediments were ranked as follows: Zn > Cr > Cu > Pb > As > Cd > Hg. The majority of the average concentrations of heavy metals in the sediment were higher than their background values, except for Cr and Hg, whereas the surface water heavy metals concentrations were lower. All of the elements apart from Cd indicated that there was no contamination and a low degree of pollution overall. Moreover, the heavy metal levels generally indicated low ecological risks, except for Cd. The results showed that Cu, Pb, Cr and Cd are influenced significantly by anthropogenic activities. Therefore, it is necessary to control heavy metal contamination caused by anthropogenic activities in the study area.
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Affiliation(s)
- Yifei Zhao
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Min Xu
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Qing Liu
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Zaifeng Wang
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Lin Zhao
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Ye Chen
- College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China.
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38
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Ding Q, Wang Y, Zhuang D. Comparison of the common spatial interpolation methods used to analyze potentially toxic elements surrounding mining regions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 212:23-31. [PMID: 29427938 DOI: 10.1016/j.jenvman.2018.01.074] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 01/18/2018] [Accepted: 01/26/2018] [Indexed: 06/08/2023]
Abstract
The appropriate spatial interpolation methods must be selected to analyze the spatial distributions of Potentially Toxic Elements (PTEs), which is a precondition for evaluating PTE pollution. The accuracy and effect of different spatial interpolation methods, which include inverse distance weighting interpolation (IDW) (power = 1, 2, 3), radial basis function interpolation (RBF) (basis function: thin-plate spline (TPS), spline with tension (ST), completely regularized spline (CRS), multiquadric (MQ) and inverse multiquadric (IMQ)) and ordinary kriging interpolation (OK) (semivariogram model: spherical, exponential, gaussian and linear), were compared using 166 unevenly distributed soil PTE samples (As, Pb, Cu and Zn) in the Suxian District, Chenzhou City, Hunan Province as the study subject. The reasons for the accuracy differences of the interpolation methods and the uncertainties of the interpolation results are discussed, then several suggestions for improving the interpolation accuracy are proposed, and the direction of pollution control is determined. The results of this study are as follows: (i) RBF-ST and OK (exponential) are the optimal interpolation methods for As and Cu, and the optimal interpolation method for Pb and Zn is RBF-IMQ. (ii) The interpolation uncertainty is positively correlated with the PTE concentration, and higher uncertainties are primarily distributed around mines, which is related to the strong spatial variability of PTE concentrations caused by human interference. (iii) The interpolation accuracy can be improved by increasing the sample size around the mines, introducing auxiliary variables in the case of incomplete sampling and adopting the partition prediction method. (iv) It is necessary to strengthen the prevention and control of As and Pb pollution, particularly in the central and northern areas. The results of this study can provide an effective reference for the optimization of interpolation methods and parameters for unevenly distributed soil PTE data in mining areas.
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Affiliation(s)
- Qian Ding
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Wang
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
| | - Dafang Zhuang
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
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Liu J, Ye S, Yuan H, Ding X, Zhao G, Yang S, He L, Wang J, Pei S, Huang X. Metal pollution across the upper delta plain wetlands and its adjacent shallow sea wetland, northeast of China: implications for the filtration functions of wetlands. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:5934-5949. [PMID: 29235033 DOI: 10.1007/s11356-017-0912-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
Grain size and concentrations of organic carbon (Corg) and particulate metals (PMs) As, Cd, Cr, Cu, Hg, Pb, Zn, Al, Fe, and Mn of 373 surface sediment samples, salinities in 67 surface water samples, were analyzed in various environments, including the upper delta plain wetlands (UDPW), its adjacent shallow sea wetland (SSW) in the Liaodong Bay, and river channels that are running through the Liaohe Delta, to evaluate the spatial distribution, transportation environmental dynamics of metals, and the provenance of metal pollution and assess the filtration functions of wetlands. The concentrations of PMs for UDPW were generally higher by a factor of ~ 10-22% compared with its analogues in SSW, suggesting the accumulation of PMs within the UDPW indicates that the UDPW systems are efficiently physical and chemical traps for PMs of anthropogenic sources by retaining and storing pollutants flowing into the sea. However, there was sever sewage irrigation-induced Cd pollution with a geo-accumulation index of 0.62-3.11 in an area of ~ 86 km2 of the adjacent shallow sea wetland, where large amount wetlands were historically moved for agriculture in the UDPW. Remarkably, the distributions of PMs were controlled by salinity-induced desorption and re-adsorption mechanisms and significantly dispersed the contamination coverage by the three-dimensional hydrodynamic and sedimentation processes that dominated by inputs of freshwater and ocean dynamics including NE-SW tidal currents and NE-E longshore drifts in the SSW of the Liaodong Bay. A high agreement between the UDPW and the SSW datasets in principal component analysis essentially reflects that the characteristics of PM sources in the SSW were actually inherited from that in the UDPW, with a much closer relationship among metals, organic matter, and fine particulates in SSW than that of UDPW, which was judged by their correlation coefficient range of 0.406-0.919 in SSW against those of 0.042-0.654 in UDPW.
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Affiliation(s)
- Jin Liu
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China
- Chinese Academy of Geological Sciences, Beijing, 100037, People's Republic of China
- China University of Geosciences (Wuhan), Wuhan, 430074, People's Republic of China
| | - Siyuan Ye
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China.
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China.
| | - Hongming Yuan
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China
| | - Xigui Ding
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China
| | - Guangming Zhao
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China
| | - Shixiong Yang
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China
| | - Lei He
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China
| | - Jin Wang
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China
| | - Shaofeng Pei
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, Qingdao, 266071, People's Republic of China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, People's Republic of China
| | - Xiaoyu Huang
- Ocean University of China, Qingdao, 266100, People's Republic of China
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Gao J, Shi H, Dai Z, Mei X, Zong H, Yang H, Hu L, Li S. Linkages between the spatial toxicity of sediments and sediment dynamics in the Yangtze River Estuary and neighboring East China Sea. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 233:1138-1146. [PMID: 29042135 DOI: 10.1016/j.envpol.2017.10.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/30/2017] [Accepted: 10/06/2017] [Indexed: 05/14/2023]
Abstract
Anthropogenic activities are driving an increase in sediment contamination in coastal areas. This poses significant challenges for the management of estuarine ecosystems and their adjacent seas worldwide. However, few studies have been conducted on how dynamic mechanisms affect the sediment toxicity in the estuarine environment. This study was designed to investigate the linkages between sediment toxicity and hydrodynamics in the Yangtze River Estuary (YRE) area. High sediment toxicity was found in the Yangtze River mouth (Region I), the depocenter of the Yangtze River Delta (Region II), and the southeastern area of the adjacent sea (Region III), while low sediment toxicity was found in the northeastern offshore region (Region IV). A spatial comparison analysis and regression model indicated that the distributed pattern of sediment toxicity was likely related to hydrodynamics and circumfluence in the East China Sea (ECS) shelf. Specifically, high sediment toxicity in Region I may be affected by the Yangtze River Pump (YRP) and the low hydrodynamics there, and high toxicity in Region II can be influenced by the low sediment dynamics and fine sediment in the depocenter. The high sediment toxicity in Region III might be related to the combination of the YRP and Taiwan Warm Current, while the low toxicity in Region IV may be influenced by the local coarse-grained relict sand with strong sediment dynamics there. The present research results further suggest that it is necessary to link hydrodynamics and the spatial behavior of sediment and sediment-derived pollutants when assessing the pollution status of estuarine environments, especially for those mega-estuaries and their neighboring ocean environments with complex waves, tides and ocean currents.
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Affiliation(s)
- Jinjuan Gao
- State Key Lab of Estuarine & Coastal Research, East China Normal University, Shanghai, China
| | - Huahong Shi
- State Key Lab of Estuarine & Coastal Research, East China Normal University, Shanghai, China
| | - Zhijun Dai
- State Key Lab of Estuarine & Coastal Research, East China Normal University, Shanghai, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qiangdao 266100, China.
| | - Xuefei Mei
- State Key Lab of Estuarine & Coastal Research, East China Normal University, Shanghai, China
| | - Haibo Zong
- State Key Lab of Estuarine & Coastal Research, East China Normal University, Shanghai, China
| | - Hongwei Yang
- State Key Lab of Estuarine & Coastal Research, East China Normal University, Shanghai, China
| | - Lingling Hu
- State Key Lab of Estuarine & Coastal Research, East China Normal University, Shanghai, China
| | - Shushi Li
- School of Resources and Environment of Qinzhou University, Qinzhou, China
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41
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Dai M, Liu W, Hong H, Lu H, Liu J, Jia H, Yan C. Exogenous phosphorus enhances cadmium tolerance by affecting cell wall polysaccharides in two mangrove seedlings Avicennia marina (Forsk.) Vierh and Kandelia obovata (S., L.) Yong differing in cadmium accumulation. MARINE POLLUTION BULLETIN 2018; 126:86-92. [PMID: 29421138 DOI: 10.1016/j.marpolbul.2017.10.083] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/06/2017] [Accepted: 10/30/2017] [Indexed: 06/08/2023]
Abstract
Phosphorous (P) is an essential element that mediates various stresses in plants. In this study, the effects of P on polysaccharides in the root cell walls of two hydroponically cultivated mangrove seedlings (A. marina and K. obovata) that differ in Cd accumulation ability were examined in the context of Cd stress. The results showed that A. marina exhibited a higher degree of tolerance to Cd than K. obovata. In both mangrove seedlings, pectin and hemicellulose 1 increased significantly with increasing P levels, the effects of which were greater in A. marina under Cd stress. In addition, cell wall pectin methylesterase (PME) activity was markedly increased in the presence of Cd and P compared with Cd alone. These effects were more pronounced in A. marina than in K. obovata. Taken together, the results of this study provide further insight into the mechanisms of P-mediated alleviation of Cd stress in mangrove seedlings.
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Affiliation(s)
- Minyue Dai
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Wenwen Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Hualong Hong
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Jingchun Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Hui Jia
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
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42
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Wang X, Zhang L, Zhao Z, Cai Y. Heavy metal contamination in surface sediments of representative reservoirs in the hilly area of southern China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:26574-26585. [PMID: 28952008 DOI: 10.1007/s11356-017-0272-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 09/19/2017] [Indexed: 05/16/2023]
Abstract
A study on the characteristics of heavy metals in surface sediments of typical reservoirs in the hilly area of southern China was carried out. The results showed that contents of heavy metals had great temporal and spatial heterogeneity among studied reservoirs. Zn, Pb, and As presented significant enrichment ratio in reservoirs of Dou Shui (DS) and Feng Tang (FT), as well as Ti in reservoirs of DZ and GT. The content of Cd in reservoir of FT reservoirs was characterized with high health risk with the significantly highest value of 52.43 mg/kg. Furthermore, Pb was identified with high health risk in reservoirs of SFM, Ouyang Hai (OYH), FT, and DS, and As was in OYH and ZX. Multivariate statistical analysis suggested high consistency in the variations of Cr, Ni, and Cu; moreover, Cd, Zn, and Pb were characterized with great homogeneity in their sources. In addition, agricultural activities might exert less effect on variations of heavy metals in studied reservoirs, considered that there was a weak relationship between heavy metals and nutrients. These results could improve our understanding of the spatial variations of heavy metals and their potential sources in reservoirs in this ecologically fragile region.
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Affiliation(s)
- Xiaolong Wang
- Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China
| | - Lu Zhang
- Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China
| | - Zhonghua Zhao
- Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China
| | - Yongjiu Cai
- Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China.
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43
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Idaszkin YL, Alvarez MDP, Carol E. Geochemical processes controlling the distribution and concentration of metals in soils from a Patagonian (Argentina) salt marsh affected by mining residues. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 596-597:230-235. [PMID: 28433765 DOI: 10.1016/j.scitotenv.2017.04.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/15/2017] [Accepted: 04/10/2017] [Indexed: 06/07/2023]
Abstract
Heavy metal pollution that affects salt marshes is a major environmental concern due to its toxic nature, persistence, and potential risk to organisms and to human health. Mining waste deposits originated four decades ago, by the metallurgical extraction of heavy metals, are found near to the San Antonio salt marsh in Patagonia. The aim of the work was to determine the geochemical processes that control the distribution and concentration of Cu, Fe, Pb and Zn in the soils of this Patagonian salt marsh. A survey of the mining waste deposits was carried out where three dumps were identified. Samples were collected to determine soil texture, Eh pH, organic matter and metal contents and the soil mineralogical composition. The results shows that the soils developed over the mining waste deposits are predominantly reddish constituted mainly by iron oxide, hydroxide and highly soluble minerals such as Zn and Cu sulphates. The drainage from these deposits tends to move towards the salt marsh. Within the salt marsh, the highest concentrations of Cu, Pb and Zn occur in the sectors closest to the mining wastes deposits. The sulphide oxidation and the dissolution of the Cu, Pb and Zn sulphates could be the mainly source of these metals in the drainage water. The metals in solution that reach the salt marsh, are adsorbed by the organic matter and the fine fraction of the soils. These adsorbed metals are then remobilized by tides in the lower sectors of the marsh by desorption from the cations present in the tidal flow. On the other hand, Fe tends to form non soluble oxides, hydroxides and sulphates which remain as altering material within the mining waste deposit. Finally, the heavy metal pollutants recorded in the San Antonio salt marsh shows that the mining waste deposits that were abandoned four decades ago are still a source metal contamination.
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Affiliation(s)
- Yanina L Idaszkin
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC -CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina
| | - María Del Pilar Alvarez
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC -CONICET), Boulevard Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown 3051, U9120ACD Puerto Madryn, Chubut, Argentina
| | - Eleonora Carol
- Centro de Investigaciones Geológicas, Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de La Plata (CIG - CONICET - UNLP), Diagonal 113 # 275, CP1900 La Plata, Argentina.
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Zhang H, Jiang Y, Ding M, Xie Z. Level, source identification, and risk analysis of heavy metal in surface sediments from river-lake ecosystems in the Poyang Lake, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:21902-21916. [PMID: 28780687 DOI: 10.1007/s11356-017-9855-y] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 07/31/2017] [Indexed: 06/07/2023]
Abstract
The concentrations, sources, and risks of heavy metals (Fe, Al, Mn, Cr, Co, Ni, Cu, Zn, As, Cd, W, Pb, and Tl) in sediments in five river-lake ecosystems in the Poyang Lake region were studied. The concentrations of the heavy metals varied spatially, with most of the highest concentrations in the Raohe river-lake ecosystem (RH). All heavy metals except As, Cd, W, and Tl were enriched in sediments possessing high total organic carbon contents or in finer sediments. Based on enrichment factors and statistical methods, it was found that Cd in sediments in the Xiushui (XS), Ganjiang (GJ), Xinjiang (XJ) river-lake ecosystems, and RH; Mn in the XS, GJ, and RH; and W in the XS and GJ were greatly affected by anthropogenic inputs. Moreover, the origins of Cu, Zn, and As require more attention due to the high concentrations found. The high enrichment factor of Cd in the sediments indicated that this metal might cause significant pollution in the environment. The results of the modified potential ecological risk index revealed that the XS, GJ, RH, and XJ were at considerable ecological risk, while the sediments in the Fuhe river-lake ecosystem (FH) were at moderate ecological risk, with Cd contributing the highest proportion of risk. The hazard score fundamentally validated the modified potential ecological risk analysis and revealed a mean toxicity of 57.80% to the benthic organisms in the RH.
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Affiliation(s)
- Hua Zhang
- Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education (Jiangxi Normal University), Nanchang, Jiangxi, 330022, China
- School of Geography & Environment, Jiangxi Normal University, No. 99, Ziyang Road, Nanchang, Jiangxi, 330022, China
| | - Yinghui Jiang
- School of Geography & Environment, Jiangxi Normal University, No. 99, Ziyang Road, Nanchang, Jiangxi, 330022, China
| | - Mingjun Ding
- Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education (Jiangxi Normal University), Nanchang, Jiangxi, 330022, China
- School of Geography & Environment, Jiangxi Normal University, No. 99, Ziyang Road, Nanchang, Jiangxi, 330022, China
| | - Zhenglei Xie
- Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education (Jiangxi Normal University), Nanchang, Jiangxi, 330022, China.
- School of Geography & Environment, Jiangxi Normal University, No. 99, Ziyang Road, Nanchang, Jiangxi, 330022, China.
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Wang J, Ye S, Laws EA, Yuan H, Ding X, Zhao G. Surface sediment properties and heavy metal pollution assessment in the Shallow Sea Wetland of the Liaodong Bay, China. MARINE POLLUTION BULLETIN 2017; 120:347-354. [PMID: 28549615 DOI: 10.1016/j.marpolbul.2017.05.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 05/17/2017] [Accepted: 05/19/2017] [Indexed: 06/07/2023]
Abstract
Liaodong Bay, a semi-enclosed bay located in northeastern China, is impacted by the discharges of five rivers. We analyzed 100 surface sediment samples from the Shallow Sea Wetland of Liaodong Bay for grain size and concentrations of organic carbon (Corg) and heavy metals. The ranges of the heavy metal concentrations were 2.32-17μg/g (As), 0.025-1.03μg/g (Cd), 18.9-131μg/g (Cr), 4.6-36.1μg/g (Cu), 0.012-0.29μg/g (Hg), 13.7-33.9μg/g (Pb), and 17.4-159μg/g (Zn). Pollution assessments revealed that some stations were moderately to highly polluted with As, Cd, and Hg. Severe pollution was apparent in the Xiaoling River estuary; lower concentrations of heavy metals were observed in other river mouths, where the sediments were more coarse. The distributions of the heavy metals were closely associated with Corg and grain size.
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Affiliation(s)
- Jin Wang
- 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
| | - 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.
| | - Edward A Laws
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China; College of the Coast & Environment, Department of Environmental Sciences, 3141 Energy, Coast & Environment Building, Louisiana State University, Baton Rouge, LA 70803-4110, USA
| | - 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
| | - Guangming Zhao
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
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Rinklebe J, Shaheen SM. Redox chemistry of nickel in soils and sediments: A review. CHEMOSPHERE 2017; 179:265-278. [PMID: 28371710 DOI: 10.1016/j.chemosphere.2017.02.153] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 02/23/2017] [Accepted: 02/28/2017] [Indexed: 05/27/2023]
Abstract
Knowledge on the redox geochemistry of Ni is behind in comparison to other heavy metals. Hence, this article reviews the direct and indirect impact of redox potential (EH) on mobilization and release dynamics of Ni in soils and sediments across the world. Nickel can show a different behavior in response to EH. Mobilization of Ni increased at low EH in various soils; however, oxic conditions can lead to an increased mobilization of Ni in other soils. Those differences occur because the mobilization of Ni is often indirectly affected by EH, e.g. through EH-dependent pH changes, co-precipitation with iron (Fe) and manganese (Mn) (hydr)oxides, complexation with soil organic carbon, similar position of Ni and magnesium (Mg) in the soil solid phase, and/or precipitation as sulphides. Dissolved concentrations of Ni showed a similar pattern like Fe and increased at low EH in many soils, which might be explained by the reductive dissolution of Fe (hydr)oxides and the release of the co-precipitated/sorbed Ni. Few other studies indicated that Ni might be associated with Mn oxides rather than with Fe oxides. Additionally, the formation of soluble complexes with dissolved organic carbon may contribute to a mobilization of Ni at low EH. Nickel and Mg are similarly affected by redox changes especially in serpentine soils. This review summarizes the recent knowledge about the redox chemistry of Ni and contributes thus to a better understanding of the potential mobilization, hazard, and eco-toxicity of Ni in frequently flooded soils and sediments as agricultural ecosystems.
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Affiliation(s)
- Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany.
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33 516, Kafr El-Sheikh, Egypt.
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47
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Krishnakumar S, Ramasamy S, Chandrasekar N, Simon Peter T, Gopal V, Godson PS, Magesh NS. Trace element concentrations in reef associated sediments of Koswari Island, Gulf of Mannar biosphere reserve, southeast coast of India. MARINE POLLUTION BULLETIN 2017; 117:515-522. [PMID: 28196651 DOI: 10.1016/j.marpolbul.2017.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 02/03/2017] [Accepted: 02/05/2017] [Indexed: 06/06/2023]
Abstract
Extensive field work was conducted in order to assess the sediment pollution level and potential ecological risk on coral reef ecosystem. Thirty three surface sample was collected using grid sampling technique. The calcium carbonate and organic matter were primarily controlled by the distribution of coral rubbles and seagrass meadows. The concentration of trace elements is higher than the crustal average in few locations and the same result was derived from index calculations. However, the significant concentration of lead was observed throughout the study area. The elevated level of lead is probably due to coal incinerating power plants, and confluence of urban runoff from the nearby coastal areas. Based on the sediment pollution index, the majority of the sediments belongs to highly polluted to dangerously polluted category. The ecological risk indicates that the sediments are under low risk to moderate risk category and this result was proved by correlation analysis.
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Affiliation(s)
- S Krishnakumar
- Department of Geology, University of Madras, Guindy Campus, Chennai 600025, India.
| | - S Ramasamy
- Department of Geology, University of Madras, Guindy Campus, Chennai 600025, India.
| | - N Chandrasekar
- Centre for GeoTechnology, Manonmaniam Sundaranar University, Tirunelveli 627012, India.
| | - T Simon Peter
- Centre for GeoTechnology, Manonmaniam Sundaranar University, Tirunelveli 627012, India.
| | - V Gopal
- Department of Geology, Anna University, Chennai 600025, India.
| | - Prince S Godson
- Department of Environmental Sciences, University of Kerala, Kariavattom campus, Thiruvananthapuram 695581, India.
| | - N S Magesh
- Department of Geology, Anna University, Chennai 600025, India.
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