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Liu T, Wang M, Zhang C, Yang S, Zhang F, Jia L, Ma W, Sui S, Liu Q, Wang M. Quantitative Effects of Anthropogenic and Natural Factors on Heavy Metals Pollution and Spatial Distribution in Surface Drinking Water Sources in the Upper Huaihe River Basin in China. TOXICS 2024; 12:517. [PMID: 39058169 PMCID: PMC11280819 DOI: 10.3390/toxics12070517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
The water quality of sources in the Huaihe River Basin significantly affects the lives and health of approximately 16.7% of China's population. Identifying and quantifying pollution sources and risks is essential for effective water resource management. This study utilized Monte Carlo simulations and Geodetector to assess water quality and eutrophication, as well as to evaluate the sources of heavy metals and the associated health risks for both adults and children. The results showed that eutrophication of water sources in Huaihe River was severe, with an overall EI value of 37.92; 67.8% of the water sources were classified as mesotrophic and 32.2% classified as eutrophic. Water quality and eutrophication levels in the southern mountainous regions were better than those in the densely populated northern areas. Adults were found to have a higher carcinogenic risk than children, whereas children faced a higher noncarcinogenic risk than adults. Cr presented the highest carcinogenic risk, affecting more than 99.8% of both adults and children at levels above 1 × 10-6 but not exceeding 1 × 10-4. The noncarcinogenic risk from metals did not surpass a level of 1, except for Pb. As was primarily influenced by agricultural activities and transportation, whereas Cd, Cr, and Pb were mainly affected by industrial activities, particularly in local textile industries such as knitting and clothing manufacturing. The analysis demonstrated that the influence of anthropogenic factors on heavy metal distribution was significantly enhanced by indirect natural factors. For example, the explanatory power of Precipitation and Road Network Density on As was 0.362 and 0.189, respectively, whereas their interaction had an explanatory power as high as 0.673. This study indicates that the geodetector method is effective in elucidating the factors influencing heavy metal distribution in water, thereby providing valuable insights into pollution sources in global drinking water.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Mingshi Wang
- College of Resource and Environment, Henan Polytechnic University, Jiaozuo 454003, China; (T.L.); (M.W.); (W.M.); (Q.L.)
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Yan J, Li F. Effects of sediment dredging on freshwater system: a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:119612-119626. [PMID: 37962757 DOI: 10.1007/s11356-023-30851-8] [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: 05/17/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023]
Abstract
As a common geo-engineering method to control internal load of nutrients and pollutants, sediment dredging has been used in many freshwater basins and has achieved certain effects. However, dredging can disturb water bodies and substrates and cause secondary pollution. It negatively affects the water environment system mainly from the following aspects. Dredging suddenly changes the hydrological conditions and many physical indicators of the water body, which will cause variations in water physicochemical properties. For example, changes in pH, dissolved oxygen, redox potential, transparency, and temperature can lead to a series of aquatic biological responses. On the other hand, sediment resuspension and deep-layer sediment exposure can affect the cycling of nutrients (e.g., nitrogen, phosphorus), the release and valence conversion of heavy metals, and the desorption and degradation of organic pollutants in the overlying water. This can further affect the community structure of aquatic organisms. The aim of this paper is to analyze the relevant literature on freshwater sediment dredging, and to summarize the current knowledge of the potential environmental risks caused by the dredging and utilization of freshwater sediments. Based on this, the paper attempts to propose suggestions to mitigate these adverse environmental impacts. These are significant contributions to the development of environmentally friendly freshwater sediment dredging technologies.
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Affiliation(s)
- Jiale Yan
- College of Economics and Management, Shandong Agricultural University, Tai'an, 271018, People's Republic of China
- Irvine Valley College, Irvine, CA, 92612, USA
| | - Fang Li
- College of Economics and Management, Shandong Agricultural University, Tai'an, 271018, People's Republic of China.
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3
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Liu Y, Cai D, Li X, Wu Q, Ding P, Shen L, Yang J, Hu G, Wu J, Zhang L. Occurrence, fate, and risk assessment of antibiotics in typical pharmaceutical manufactories and receiving water bodies from different regions. PLoS One 2023; 18:e0270945. [PMID: 36662697 PMCID: PMC9858356 DOI: 10.1371/journal.pone.0270945] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 12/21/2022] [Indexed: 01/21/2023] Open
Abstract
This study aimed to investigate the presence and persistence of antibiotics in wastewater of four typical pharmaceutical manufactories in China and receiving water bodies and suggest the removal of antibiotics by the wastewater treatment process. It also evaluated the environmental impact of antibiotic residues through wastewater discharge into receiving water bodies. The results indicated that thirteen antibiotics were detected in wastewater samples with concentrations ranging from 57.03 to 726.79 ng/L. Fluoroquinolones and macrolides were the most abundant antibiotic classes found in wastewater samples, accounting for 42.5% and 38.7% of total antibiotic concentrations, respectively, followed by sulfonamides (16.4%) and tetracyclines (2.4%). Erythromycin-H2O, lincomycin, ofloxacin, and trimethoprim were the most frequently detected antibiotics; among these antibiotics, the concentration of ofloxacin was the highest in most wastewater samples. No significant difference was found in different treatment processes used to remove antibiotics in wastewater samples. More than 50% of antibiotics were not completely removed with a removal efficiency of less than 70%. The concentration of detected antibiotics in the receiving water bodies was an order of magnitude lower than that in the wastewater sample due to dilution. An environmental risk assessment showed that lincomycin and ofloxacin could pose a high risk at the concentrations detected in effluents and a medium risk in their receiving water bodies, highlighting a potential hazard to the health of the aquatic ecosystem. Overall, The investigation was aimed to determine and monitor the concentration of selected antibiotics in 4 typical PMFs and their receiving water bodies, and to study the removal of these substances in PMFs. This study will provide significant data and findings for future studies on antibiotics-related pollution control and management in water bodies.
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Affiliation(s)
- Yuanfei Liu
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong, China
| | - Dan Cai
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangdong, China
| | - Xin Li
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangdong, China
| | - Qingyao Wu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangdong, China
- School of Public Health and Emergency Management, South University of Science and Technology of China, Shenzhen, Guangdong, China
| | - Ping Ding
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangdong, China
| | - Liangchen Shen
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangdong, China
| | - Jian Yang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangdong, China
| | - Guocheng Hu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangdong, China
| | - Jinhua Wu
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong, China
| | - Lijuan Zhang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangdong, China
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Chris DI, Anyanwu BO. Pollution and Potential Ecological Risk Evaluation Associated with Toxic Metals in an Impacted Mangrove Swamp in Niger Delta, Nigeria. TOXICS 2022; 11:6. [PMID: 36668732 PMCID: PMC9866853 DOI: 10.3390/toxics11010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Anthropogenic activities along coastal areas have contributed to the unwarranted discharge of toxic metals into mangrove swamps, posing risks to marine deposits and ecological environments. In this research, we studied the Isaka−Bundu tidal swamp area in the Niger Delta, which is an impacted mangrove creek located along the Bonny river, exposed to pollution pressures. The ecological risks (Er) of toxic metals in the sediments and water of the Isaka−Bundu tidal mangrove swamp followed a decreasing order (Cu > Zn > Cd > Cu > Pb > As), according to our results, while the potential ecological risk index (PERI) of the toxic metals in the sediments and water of the Isaka−Bundu tidal mangrove swamp can be said to have a very high ecological risk (PERI ≥ 600). The sediment pollution load index (PLI) was higher than 1 in all three analyzed stations, suggesting extremely toxic pollution. The enrichment evaluation shows that the studied stations have a moderate potential ecological risk of Cd, with the enrichment value for Pb showing low potential ecological risk. Our study shows that the Isaka−Bundu tidal mangrove swamp has a significant level of toxic metal pollution, which is evidence of the illegal activities performed in the Niger Delta.
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Affiliation(s)
- Davies Ibienebo Chris
- Department of Fisheries, Faculty of Agriculture, University of Port Harcourt, Port Harcourt P.M.B. 5323, Rivers State, Nigeria
| | - Brilliance Onyinyechi Anyanwu
- Department of Environmental Health Sciences, College of Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
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5
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Zhang K, Han Y, Li K, Guo Z, Wang Q, Cui X, Yang F, Zhang Z. Fractionation analysis and risk assessment of potential toxic elements in reservoir sediments in central China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:81864-81874. [PMID: 35737267 DOI: 10.1007/s11356-022-21464-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
The pollution of potential toxic elements (PTEs) in the environment is a persistent issue and draws public attention constantly. However, there is no study comprehensively assessing the PTE pollution of water supply reservoirs in central China. This study determined the total contents and fractions of seven PTEs in 10 water supply reservoirs of central China, and evaluated PTE pollution risks by adopting various models. The results indicated that PTE pollution in water supply reservoirs was lower comparing that in estuary or river sediments, and Mn (manganese) was the predominant PTE in central China reservoirs. Fractionation analysis revealed that for B1 fraction (exchangeable/acid-soluble fraction) of Mn, Zn (zinc) and B2 fraction (reducible fraction) of Pb (lead) was high, while the effective state portion of Cr (chromium) was small. The monomial potential ecological risk indices and Igeo values were low among most samples, indicating overall modest PTE pollution. However, the results of the individual contamination factor (ICF) suggested that Pb might lead to potential health risks to human beings.
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Affiliation(s)
- Kai Zhang
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China
- Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
| | - Ya Han
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China
- Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
| | - Kuangjia Li
- Development Research Center, Ministry of Water Resources of People's Republic of China, Beijing, 100032, China.
| | - Ziwei Guo
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China
- Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
| | - Qian Wang
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China
- Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
| | - Xiangchao Cui
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China
- Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
| | - Fengxia Yang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Zhongshuai Zhang
- School of Geographic Sciences, Xinyang Normal University, Xinyang, 464000, China
- Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang, 464000, China
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Toller S, Funari V, Zannoni D, Vasumini I, Dinelli E. Sediment quality of the Ridracoli fresh water reservoir in Italy: Insights from aqua regia digestion and sequential extractions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 826:154167. [PMID: 35231522 DOI: 10.1016/j.scitotenv.2022.154167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/02/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
The inter-element relationships and the forms in which metals exist strongly influence their mobility and, in turn, have a signature on the environment and human health. Located in the northern Apennines within the Emilia-Romagna region, the Ridracoli artificial lake is one of Italy's most important reservoirs that provides drinking water for about one million people. This work characterized the reservoir sediments by ICP-MS after aqua regia digestion (ARD), comparing the limits by law to assess environmental compliance and XRF data from the same sample-set taken as total concentrations. The Degree of Extraction (DE) from pseudo-total concentrations of ARD analysis allows assessing elements mobility and the associated environmental risk. Principal Component Analysis (PCA) on the obtained data helped to investigate inter-element relationships better; for example, we observed carbonate-sourced sediments, many trace elements (e.g., Ni, Zn) linked to FeMn oxyhydroxides, the importance of the grain size in elements distribution, and the central role of the organic matter in element partitioning. In addition, a Sequential Extraction Procedure (SEP) was applied to the sediment samples to understand the partitioning of many analytes, including Potentially Harmful Elements (PHE) such as Fe, Mn, Cu, Cr, Ni, Pb, and Zn. The results indicated that the most easily mobilized forms were predominant in the area near the dam, in correspondence to sediments affected by the formation of a seasonal anoxic layer.
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Affiliation(s)
- Simone Toller
- University of Parma, Department of Chemical, Life and Environmental Sustainability Sciences (SCVSA), Parco Area delle Scienze, 17/A Parma, Italy; National Research Council of Italy, Department of Scienze Del Sistema Terra e Tecnologie per l'Ambiente (ISMAR-CNR), Bologna Research Area, via P. Gobetti, 101 Bologna, Italy.
| | - Valerio Funari
- National Research Council of Italy, Department of Scienze Del Sistema Terra e Tecnologie per l'Ambiente (ISMAR-CNR), Bologna Research Area, via P. Gobetti, 101 Bologna, Italy; Marine Biotechnology Department, Stazione Zoologica Anton Dohrn (SZN), Villa Comunale, 80121 Napoli, Italy
| | - Denis Zannoni
- University of Bologna, Department of Biological, Geological and Environmental Sciences (BiGeA), via San'Alberto, 163 Ravenna, Italy
| | - Ivo Vasumini
- Romagna Acque Società delle Fonti S.p.a., Piazza Orsi Mangelli, 10 Forlì, Italy
| | - Enrico Dinelli
- University of Bologna, Department of Biological, Geological and Environmental Sciences (BiGeA), Piazza di Porta San Donato, 1 Bologna, Italy
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Jha P, Banerjee S, Bhuyan P, Sudarshan M, Dewanji A. Elemental distribution in urban sediments of small waterbodies and its implications: a case study from Kolkata, India. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:461-482. [PMID: 31471689 DOI: 10.1007/s10653-019-00377-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 07/09/2019] [Indexed: 06/10/2023]
Abstract
The impacts of elemental pollution in sediments of freshwater bodies are of particular concern in rapidly urbanizing cities of the developing world and have been extensively studied in rivers and lakes. The current study is an attempt to highlight the importance of smaller waterbodies, which happen to form a natural network in cities, for assessing the contamination status of sediments. The distribution of elements (Al, Ca, Fe, K, Mg, S, Si, Ti, Ba, Mn, Sr, V, As, Cr, Cu, Ni, Pb and Zn) in sediments of 15 ponds and 6 canals was studied to understand the overall pollution status and the associated ecological risk to aquatic organisms. Geochemical indices revealed Cr, Cu, Pb and Zn to be the principal elements of concern. The mean concentration of Cr, Cu, Pb and Zn was 308, 174, 76.9 and 446 mg kg-1, respectively. Ecological risk assessment revealed that Cr in 86% sites, Ni in 52% sites, Cu and Zn in 28% sites and Pb in 10% sites were associated with possible ecological toxicity. The findings suggest that multielemental concentration in sediments of ponds and canals could effectively distinguish between pristine and polluted sites and suitably identify the main elements of concern to support cost-efficient waste management solutions customized to both the sites and elements of concern.
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Affiliation(s)
- Poulami Jha
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203 B.T. Road, Kolkata, 700108, India
| | - Shamayita Banerjee
- UGC-DAE Consortium for Scientific Research, LB-8, Sector III, Bidhan Nagar, Kolkata, 700098, India
| | - Prajamitra Bhuyan
- Applied Statistics Unit, Indian Statistical Institute, 203 B.T. Road, Kolkata, 700108, India
- Department of Mathematics, Imperial College London, South Kensington Campus, London, SW7 2AZ, England, UK
- The Alan Turing Institute, British Library, 96 Euston Road, London, NW1 2DB, England, UK
| | - Mathummal Sudarshan
- UGC-DAE Consortium for Scientific Research, LB-8, Sector III, Bidhan Nagar, Kolkata, 700098, India
| | - Anjana Dewanji
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203 B.T. Road, Kolkata, 700108, India.
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8
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Zhuang M, Sanganyado E, Li P, Liu W. Distribution of microbial communities in metal-contaminated nearshore sediment from Eastern Guangdong, China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 250:482-492. [PMID: 31026695 DOI: 10.1016/j.envpol.2019.04.041] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/22/2019] [Accepted: 04/08/2019] [Indexed: 06/09/2023]
Abstract
Nearshore environments are a critical transitional zone that connects the marine and terrestrial/freshwater ecosystems. The release of anthropogenic chemicals into nearshore ecosystems pose a human and environmental health risk. We investigated the microbial diversity, abundance and function in metal-contaminated sediments collected from the Rongjiang, Hanjiang and Lianjiang River estuaries and adjacent coastal areas using high throughput sequencing. The concentration of nutrients (NO3-N, NO2-N, NH4-N, PO4-P) and metal (Cu, Zn, Cd, Pb, As, Hg) contaminants were higher at the mouth of the rivers compared to the coastal lines, and this was confirmed using cluster analysis. Estimates obtained using geoaccumulation index showed that about 38.9% of the sites were contaminated with Pb and the pollution load index showed that sediment from the mouth of Hanjiang River Estuary was moderately polluted with metals. In the nearshore sediment samples collected, Proteobacteria, Bacteroidetes, Planctomycetes, Chloroflexi, Acidobacteria were the dominant phylum with relative abundances of 46.6%, 8.05%, 6.47%, 5.26%, and 4.59%, respectively. There was no significant correlation between environmental variables and microbial abundance and diversity except for total organic carbon (TOC) (diversity; r = 0.569, p < 0.05) and Cr (diversity; r = 0.581, p < 0.05). At phyla level, Nitrospirae had a significant negative correlation with all metals except Cr, while OD1 had a significant positive correlation with all the metals. Overall, changes in nearshore sediment microbial communities by environmental factors were observed, and these may affect biogeochemical cycling.
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Affiliation(s)
- Mei Zhuang
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China
| | - Edmond Sanganyado
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China
| | - Ping Li
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China
| | - Wenhua Liu
- Marine Biology Institute, Shantou University, Shantou, Guangdong Province, China.
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Ribeiro C, Couto C, Ribeiro AR, Maia AS, Santos M, Tiritan ME, Pinto E, Almeida AA. Distribution and environmental assessment of trace elements contamination of water, sediments and flora from Douro River estuary, Portugal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 639:1381-1393. [PMID: 29929302 DOI: 10.1016/j.scitotenv.2018.05.234] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 05/18/2018] [Accepted: 05/19/2018] [Indexed: 06/08/2023]
Abstract
The present study evaluated the content and distribution of several trace elements (Li, Be, Al, V, Cr, Co, Ni, Cu, Zn, Se, Mo, Ag, Cd, Sb, Ba, Tl, Pb, and U) in the Douro River estuary. For that, three matrices were collected (water, sediments and native local flora) to assess the extent of contamination by these elements in this estuarine ecosystem. Results showed their occurrence in estuarine water and sediments, but significant differences were recorded on the concentration levels and pattern of distribution among both matrices and sampling points. Generally, the levels of trace elements were higher in the sediments than in the respective estuarine water. Nonetheless, no correlation among trace elements was determined between water and sediments, except for Cd. Al was the trace element found at highest concentration at both sediments and water followed by Zn. Pollution indices such as geo-accumulation (Igeo), enrichment factor (EF) and contamination factor (CF) were determined to understand the levels and sources of trace elements pollution. Igeo showed strong contamination by anthropogenic activities for Li, Al, V, Cr, Ni, Cu, Zn, Ba and Pb at all sampling points while EF and CF demonstrated severe enrichment and contamination by Se, Sb and Pb. Levels of trace elements were compared to acceptable values for aquatic organisms and Sediment Quality Guidelines. The concentration of some trace elements, namely Al, Pb and Cu, were higher than those considered acceptable, with potential negative impact on local living organisms. Nevertheless, permissible values for all trace elements are still not available, demonstrating that further studies are needed in order to have a complete assessment of environmental risk. Furthermore, the occurrence and possible accumulation of trace elements by local plant species and macroalgae were investigated as well as their potential use as bioindicators of local pollution and for phytoremediation purposes.
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Affiliation(s)
- C Ribeiro
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal.
| | - C Couto
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal; LAQV / REQUIMTE, Departamento de Ciências Químicas, Laboratório de Química Aplicada, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - A R Ribeiro
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal; Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
| | - A S Maia
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - M Santos
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - M E Tiritan
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - E Pinto
- LAQV / REQUIMTE, Departamento de Ciências Químicas, Laboratório de Química Aplicada, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - A A Almeida
- LAQV / REQUIMTE, Departamento de Ciências Químicas, Laboratório de Química Aplicada, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
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10
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Mohammed FK, Sieuraj J, Seepersaud M. A preliminary assessment of heavy metals in sediments from the Cipero and South Oropouche Rivers in Trinidad, West Indies. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:396. [PMID: 28710690 DOI: 10.1007/s10661-017-6077-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 06/15/2017] [Indexed: 06/07/2023]
Abstract
The increasing urbanization and industrial processes in Trinidad within recent years could pose a possible contamination threat to the aquatic environment. The southwestern part of the island houses numerous industrial activities, and the recent sightings of schools of dead fish and other marine organisms in that locality is cause for concern prompting research into this occurrence. Sediment and surface water samples from the Cipero and South Oropouche Rivers in South Trinidad were analyzed for their heavy metal content (Cd, Cr, Cu, Mn, Ni, Pb, and Zn). Another watercourse, the Moruga River, was selected as a control, based on its location away from significant anthropogenic sources, and the levels of heavy metals obtained for this location were considered as background concentrations for both surface waters and sediments. Cadmium, Ni, and Pb were not detected in surface water samples of both rivers. The corresponding order of metals in the Cipero River was Mn > Cr > Zn > Cu, while for the South Oropouche River, the order was Mn > Cr > Cu > Zn. The individual concentrations of metals in sediments found in the Cipero and South Oropouche Rivers varied according to the following orders: Mn > Zn > Cu > Pb > Ni > Cr > Cd and Mn > Zn > Pb > Cu > Ni > Cr > Cd, respectively. Assessments of the pollution status in sediments revealed that the Cipero River was considered polluted with a moderate degree of ecological pollution while the South Oropouche River was also deemed polluted; however, the degree of ecological pollution associated with that river was low. Principal component analysis (PCA) and cluster analysis (CA) confirmed that both anthropogenic and natural sources contributed to heavy metal contamination in sediments of both rivers.
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Affiliation(s)
- Faisal K Mohammed
- Department of Chemistry, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Jason Sieuraj
- Department of Chemistry, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Mohindra Seepersaud
- Department of Chemistry, Faculty of Science and Technology, The University of the West Indies, St. Augustine, Trinidad and Tobago.
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