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Kou Y, Zhang W, Zhang Y, Ge X, Wu Y. Toxic effects of trace metal(loid) mixtures on aquatic organisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 948:174677. [PMID: 39009169 DOI: 10.1016/j.scitotenv.2024.174677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/17/2024] [Accepted: 07/08/2024] [Indexed: 07/17/2024]
Abstract
The co-occurrence of metal (loid)s in realistic aquatic environments necessitates the evaluation of their combined effects. However, the generality of the additive effect hypothesis is contentious, particularly due to metal(loid)-metal(loid) interactions. The absence of systematic evaluation approaches restricts our ability to draw overall conclusions and make reliable predictions. In this study, we reviewed 1473 effect sizes from 38 publications, and classified all responses into seven main categories (from molecular to individual levels) according to their toxicological significance. Our meta-analysis revealed that metal(loid) mixtures had significant effects on aquatic organisms (33 %, 95 % CI 28 %-39 %, P < 0.05), along with significant response heterogeneity (Qt = 690,319.62, P < 0.0001; I2 = 99.95 %). Concurrently, we developed a Random Forest machine learning model to predict adverse effects and identify key variables. These two methods demonstrated that the toxicity of metal(loid) mixtures is primarily linked to the choice of toxicity endpoints, and the characteristics of metal(loid) mixtures. Our findings underscore the potential of combining meta-analysis with machine learning, a more systematic approach, to enhance the understanding and prediction of the adverse effects of metal(loid) mixtures, and they offer guidance for risk assessment and policy-making in complex environmental scenarios.
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Affiliation(s)
- Yajing Kou
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology (NUIST), Nanjing 210044, China
| | - Wei Zhang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yunjiang Zhang
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology (NUIST), Nanjing 210044, China
| | - Xinlei Ge
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology (NUIST), Nanjing 210044, China
| | - Yun Wu
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (AEET), School of Environmental Science and Engineering, Nanjing University of Information Science & Technology (NUIST), Nanjing 210044, China.
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Leite C, Russo T, Pinto J, Polese G, Soares AMVM, Pretti C, Pereira E, Freitas R. From the cellular to tissue alterations induced by two rare earth elements in the mussel species Mytilus galloprovincialis: Comparison between exposure and recovery periods. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 915:169754. [PMID: 38163599 DOI: 10.1016/j.scitotenv.2023.169754] [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: 11/09/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
The global effort to achieve carbon neutrality has led to an increased demand for renewable energy technologies and their raw materials, namely rare earth elements (REEs). These elements possess unique properties and are used in various applications. However, the increased use of REE-based technologies has resulted in higher amounts of electronic waste, leading to elevated REEs concentrations found in the aquatic environment, with poorly understood threats to wildlife. Praseodymium (Pr) and europium (Eu) are two REEs that, despite their potential environmental risks, have almost unknown effects on aquatic organisms. Therefore, the present study aimed to assess the impacts of different concentrations of Pr and Eu (0, 10, 20, 40, and 80 μg/L) in the mussel species Mytilus galloprovincialis, as well as their ability to recover from exposure to the highest concentration. Mussels accumulated both elements in a dose-dependent manner, with the accumulation of Pr being higher. Accompanying the increase of metabolism, mussels exposed to Pr not only enhanced the activity of the antioxidant enzymes superoxide dismutase (up to 40 μg/L) and glutathione reductase (at 80 μg/L) but also the activity of the biotransformation enzymes carboxylesterases (CbE's) and glutathione S-transferases (GSTs) (at 80 μg/L). Nevertheless, these defence mechanisms were not sufficient to prevent cellular damage. All the Eu concentrations induced cellular damage, despite an increase in the activity of biotransformation enzymes (CbE's and GSTs) in mussel tissue. According to the histopathology assessment, mussels were not able to recover after exposure to both elements and lower concentrations induced higher injuries in digestive tubules. This study highlights that exposure to Pr and Eu had adverse effects on M. galloprovincialis, even at the lowest tested concentration, which may eventually impact mussels' growth, reproductive capacity, and survival.
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Affiliation(s)
- Carla Leite
- Department of Biology & CESAM, University of Aveiro 3810-193, Aveiro, Portugal
| | - Tania Russo
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy
| | - João Pinto
- Department of Chemistry & LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Gianluca Polese
- Department of Biology, University of Naples Federico II, 80126 Napoli, Italy
| | - Amadeu M V M Soares
- Department of Biology & CESAM, University of Aveiro 3810-193, Aveiro, Portugal
| | - Carlo Pretti
- Interuniversity Consortium of Marine Biology of Leghorn "G. Bacci", 57128 Livorno, Italy; Department of Veterinary Sciences, University of Pisa, San Piero a Grado, 56122 Pisa, Italy
| | - Eduarda Pereira
- Department of Chemistry & LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Department of Biology & CESAM, University of Aveiro 3810-193, Aveiro, Portugal.
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de Almeida Duarte LF, Dos Santos Barbosa Ortega A, de Souza Paço M, Sadauskas-Henrique H, Cesar-Ribeiro C, Souza IC, Monteiro R, Monferrán MV, Wunderlin DA, Fernandes MN, Pereira CDS. Settleable atmospheric particulate matter harms a marine invertebrate: Integrating chemical and biological damage in a bivalve model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 881:163380. [PMID: 37044328 DOI: 10.1016/j.scitotenv.2023.163380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 04/14/2023]
Abstract
Some atmospheric pollutants may affect aquatic ecosystems after settling, generating contamination, bioaccumulation, and threats to aquatic species. Metallurgical processes result in the emission of settleable atmospheric particulate matter (SePM), including metals and metalloids, along with rare earth elements (REE) that are considered emerging contaminants. We report the 30-day exposure of brown mussels (Perna perna) to SePM collected in a metallurgical area of southeast Brazil close to estuarine ecosystems, followed by a 30-day clearance period, to evaluate the toxic potential of SePM to this model mollusk. The bioaccumulation of 28 elements identified in SePM and the sublethal effects were evaluated. REEs were found in SePM (Ce, Y, and La). Significant bioaccumulation of eight metals (Fe, Ni, Cu, Zn, Rb, Sr, Cd, and Ba) was found in the bivalves and correlates with the cytotoxicity and genotoxicity, showing a dose-dependent mode and suggesting a pre-pathological condition that could lead to ecological disturbances over time. Conversely, the unchanged lipid-peroxidation level after SePM exposure could indicate the effectiveness of the antioxidant system in protecting gills and digestive glands. The clearance period was not enough to successfully reverse the negative effects observed. So far, the current results enhance the comprehension of the negative role of SePM on metal bioaccumulation and metal-induced toxicity to aquatic biota. Thus, this report adds innovative findings on the role of SePM in aquatic pollution in coastal areas affected by atmospheric pollution, which should be relevant for future public policies to verify and control the environmental pollution.
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Affiliation(s)
- Luis Felipe de Almeida Duarte
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Campus Baixada Santista, Rua Maria Máximo 168, 11030-100 Santos, São Paulo, Brazil; Universidade Santa Cecília, Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, R. Oswaldo Cruz, 277, Boqueirão, 11045-907 Santos, São Paulo, Brazil.
| | - Andressa Dos Santos Barbosa Ortega
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Campus Baixada Santista, Rua Maria Máximo 168, 11030-100 Santos, São Paulo, Brazil; Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho, Campus Litoral Paulista, Praça Infante Dom Henrique, s/n - Parque Bitaru, 11330-900 São Vicente, São Paulo, Brazil
| | - Marina de Souza Paço
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Campus Baixada Santista, Rua Maria Máximo 168, 11030-100 Santos, São Paulo, Brazil
| | - Helen Sadauskas-Henrique
- Universidade Santa Cecília, Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, R. Oswaldo Cruz, 277, Boqueirão, 11045-907 Santos, São Paulo, Brazil
| | - Caio Cesar-Ribeiro
- Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho, Campus Litoral Paulista, Praça Infante Dom Henrique, s/n - Parque Bitaru, 11330-900 São Vicente, São Paulo, Brazil
| | - Iara Costa Souza
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (DCF/UFSCar), Rod. Washington Luiz, Km 235, 13565-905 São Carlos, São Paulo, Brazil
| | - Rafaella Monteiro
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (DCF/UFSCar), Rod. Washington Luiz, Km 235, 13565-905 São Carlos, São Paulo, Brazil
| | - Magdalena Victoria Monferrán
- ICYTAC: Instituto de Ciencia y Tecnología de Alimentos Córdoba, CONICET and Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Cidad, Universitaria, 5000 Córdoba, Argentina
| | - Daniel Alberto Wunderlin
- ICYTAC: Instituto de Ciencia y Tecnología de Alimentos Córdoba, CONICET and Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Cidad, Universitaria, 5000 Córdoba, Argentina
| | - Marisa Narciso Fernandes
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos (DCF/UFSCar), Rod. Washington Luiz, Km 235, 13565-905 São Carlos, São Paulo, Brazil
| | - Camilo Dias Seabra Pereira
- Departamento de Ciências do Mar, Universidade Federal de São Paulo, Campus Baixada Santista, Rua Maria Máximo 168, 11030-100 Santos, São Paulo, Brazil; Universidade Santa Cecília, Programa de Pós-Graduação em Ciência e Tecnologia Ambiental, R. Oswaldo Cruz, 277, Boqueirão, 11045-907 Santos, São Paulo, Brazil
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McDougall DR, Toone TA, Jeffs AG. Natural heavy metal concentrations in seawater as a possible cause of low survival of larval mussels. J Trace Elem Med Biol 2022; 74:127071. [PMID: 36116231 DOI: 10.1016/j.jtemb.2022.127071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 09/05/2022] [Accepted: 09/11/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND A period of seismic activity starting in 2010 coincided with a decline in commercial catches of wild seed mussels in a major aquaculture production region of New Zealand. Analyses of over 40 years of mussel seed catch data from in the Pelorus and Kenepuru Sounds, confirmed a marked decline since 2010 in catches of the preferred, green-lipped mussel (Perna canaliculus), the larvae of which is known to have low tolerance of heavy metals in seawater. METHODS Heavy metal mean concentrations were measured throughout the Pelorus and Kenepuru Sounds. The concentrations ranged from < 0.60-3.24, < 16.94-74.35, < 1.47-4.00, 2.23-19.02, 1.86-3.29 and 0.12-0.52 µg L-1 for Cr, Fe, Cu, Zn, As, and Cd, respectively. Seawater from six locations in the Sounds, historically associated with high commercial catches of settling mussel larvae, was used for experimental rearing of green-lipped mussel larvae. RESULTS No mussel embryos survived when incubated in these seawater samples. The mean concentrations of Cr, Fe, As, and Cd were significantly higher in the seawater from the Sounds than in the hatchery seawater. A higher concentration of one or a combination of these heavy metals could be the cause of the poor larval survival. These findings could be crucial for the sustainability of mussel farming in the area.
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Affiliation(s)
| | - Trevyn A Toone
- Institute of Marine Science, University of Auckland, New Zealand; National Institute of Water and Atmospheric Research, Nelson, New Zealand
| | - Andrew G Jeffs
- Institute of Marine Science, University of Auckland, New Zealand
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Tesser ME, Guilger M, Bilesky-José N, Risso WE, de Lima R, Martinez CBDR. Biogenic metallic nanoparticles (Ag, TiO 2, Fe) as potential fungicides for agriculture: are they safe for the freshwater mussel Anodontites trapesialis? CHEMOSPHERE 2022; 309:136664. [PMID: 36195123 DOI: 10.1016/j.chemosphere.2022.136664] [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: 05/05/2022] [Revised: 09/10/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Silver (Ag), titanium dioxide (TiO2), and iron (Fe) nanoparticles (NPs) synthesized using the fungus Trichoderma harzianum are effective against the agriculture pathogen Sclerotinia sclerotiorum. However, their effects should be evaluated in aquatic organisms, as agriculture practices can contaminate the aquatic environment. Thus, this work evaluated sublethal effects of acute exposure (24 h) to AgNP, TiO2NP and FeNP, synthesized with T. harzianum, on the Neotropical freshwater bivalve Anodontites trapesialis, considering the hypothesis that suspension-feeding bivalves are susceptible to NPs toxicity. Individuals of A. trapesialis were divided into four groups (n = 8/group): a control group, kept in water only; a group exposed to AgNP; a group exposed to TiO2NP; and a group exposed to FeNP. The bioaccumulation of Ag, Ti, and Fe was evaluated in the gills, hemolymph, mantle, digestive gland, and muscle (foot). Lipoperoxidation, activities of the glutathione S-transferase, catalase, and superoxide dismutase, and glycogen concentration were quantified in the gills, mantle, and digestive gland. Ions (Na+, K+, Cl-, Ca2+, and Mg+2) and glucose concentrations were quantified in the hemolymph. Na+/K+-ATPase, H+-ATPase, Ca2+-ATPase, and carbonic anhydrase activities were assessed in the gills and mantle. Acetylcholinesterase activity was determined in the foot and adductor muscle. The mussels exposed to AgNP accumulated Ag in the gills, hemolymph, and foot, and showed a decrease in hemolymph concentrations of Na+ and Cl-, which was associated with the action of Ag ion (Ag+). The exposures to TiO2NP and FeNP led to the accumulation of Ti and Fe in the hemolymph, respectively, but did not promote additional effects. Accordingly, A. trapesialis showed bioaccumulation potential and susceptibility to AgNP, but was not susceptible to TiO2NP and FeNP. Thus, the preferential agricultural use of TiO2NP and FeNP over AgNP is highlighted.
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Affiliation(s)
- Maria Eduarda Tesser
- Laboratory of Animal Ecophysiology, Department of Physiological Sciences, State University of Londrina (UEL), Londrina, Paraná, Brazil
| | - Mariana Guilger
- Laboratory of Environmental Nanotechnology, São Paulo State University (UNESP), Sorocaba, São Paulo, Brazil; Laboratory of Bioactivity Assessment and Toxicology of Nanomaterials, University of Sorocaba (UNISO), Sorocaba, São Paulo, Brazil
| | - Natália Bilesky-José
- Laboratory of Environmental Nanotechnology, São Paulo State University (UNESP), Sorocaba, São Paulo, Brazil; Laboratory of Bioactivity Assessment and Toxicology of Nanomaterials, University of Sorocaba (UNISO), Sorocaba, São Paulo, Brazil
| | - Wagner Ezequiel Risso
- Laboratory of Animal Ecophysiology, Department of Physiological Sciences, State University of Londrina (UEL), Londrina, Paraná, Brazil
| | - Renata de Lima
- Laboratory of Bioactivity Assessment and Toxicology of Nanomaterials, University of Sorocaba (UNISO), Sorocaba, São Paulo, Brazil
| | - Claudia Bueno Dos Reis Martinez
- Laboratory of Animal Ecophysiology, Department of Physiological Sciences, State University of Londrina (UEL), Londrina, Paraná, Brazil.
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Séguin JY, Mason J, Hanson ML, Hollebone BP, Orihel DM, Palace VP, Rodriguez-Gil JL, Blais JM. Bioaccumulation and toxicokinetics of polycyclic aromatic compounds and metals in giant floater mussels (Pyganodon grandis) exposed to a simulated diluted bitumen spill. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 252:106316. [PMID: 36206703 DOI: 10.1016/j.aquatox.2022.106316] [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: 01/24/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Oil spills constitute a major risk to the environment and the bioaccumulation potential of the derived oil constituents will influence their impact on aquatic biota. Here we determined the bioaccumulation potential and toxicokinetic parameters of polycyclic aromatic compounds (PACs) and various selected metals in the giant floater mussels (Pyganodon grandis) following experimental oil spills in a freshwater lake. Specifically, these mussels were exposed ex situ for 25 days to water contaminated with naturally weathered diluted bitumen (dilbit), a form of oil commonly transported through pipelines. We detected greater concentrations of total PAC in mussels (∑PAC44) exposed to dilbit-contaminated water (25.92-27.79 μg g-1 lipid, n = 9, at day 25 of the uptake phase) compared to mussels from a control with no exposure to dilbit (average of 2.62 ± 1.95 μg g-1 lipid; ±SD, n = 17). This study demonstrates the importance of including alkylated PACs when assessing the impacts of an oil spill as the concentration of alkylated PACs in mussel tissue were an order of magnitude higher than their parent counterparts. However, metal accumulation in dilbit-exposed mussels did not exceed the unexposed controls, suggesting no excess metal accumulation by mussels from a 25-day dilbit exposure. From first-order one-compartment models, mean uptake rate constants (0.78-18.11 L g-1 day-1, n = 29) and bioconcentration factors (log values from 4.02 to 5.92 L kg-1, n = 87) for the 29 individual PACs that accumulated in mussels demonstrated that some alkylated PACs had greater bioaccumulation potential compared to their parent PAC counterpart but for the most part, alkylated and parent PACs had comparable BCF values. Results from this study also demonstrated that giant floater mussels could be used to biomonitor PAC contamination following oil spills as PACs accumulated in mussel tissue and some were still detectable following the 16-day depuration phase. This study provides the largest, most comprehensive set of toxicokinetic and bioaccumulation parameters for PACs and their alkylated counterparts (44 analytes) in freshwater mussels obtained to date.
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Affiliation(s)
| | - Johanna Mason
- School of Environmental Studies, Queen's University, 116 Barrie St., Kingston, ON K7L 3N6, Canada
| | - Mark L Hanson
- Department of Environment and Geography, University of Manitoba, Winnipeg MB, Canada
| | | | - Diane M Orihel
- School of Environmental Studies, Queen's University, 116 Barrie St., Kingston, ON K7L 3N6, Canada; Department of Biology, Queen's University, 116 Barrie St., Kingston, ON K7L 3N6, Canada
| | - Vince P Palace
- Department of Environment and Geography, University of Manitoba, Winnipeg MB, Canada; IISD-Experimental Lakes Area, Winnipeg, MB, Canada
| | | | - Jules M Blais
- Department of Biology, University of Ottawa, Ottawa ON, Canada.
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Spatio-Temporal Variation of Elemental Contamination and Health of Mya arenaria Clam in the Saguenay–St. Lawrence Marine Park. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The impacts of pollution and long-term effects of local clam populations are misunderstood in estuaries. The purpose of this study was to follow inorganic contamination in tissues, changes of physiological health indicators, such as condition factor (CF), growth index (GI), resistance in air emersion and dehydration rate, for 5 years in Mya arenaria clams. The sampling scheme comprised one reference site, two sites impacted by human activity (thereafter polluted) and one site recognized as a Saint-Lawrence Estuary (SLE) beluga whale feeding area without known pollution source (Baie Sainte-Marguerite (BSM)). This study revealed that the elemental contamination profiles in clams were increased but differed between the polluted and BSM compared to the reference site. At polluted sites, clams were contaminated by Ag (2.4-fold of reference site), Mn (2.5-fold) and V (6.3-fold). With respect to BSM, clams were mainly contaminated by Ce (2.5-fold), Co (2-fold), Ga (2-fold), La (2.8-fold), Hg (2.5-fold), Ni (2.2-fold), Sm (2-fold) and V (20-fold). This contamination profile suggests sources of pollution from particulate combustion products of gasoline/diesel, crude oil and urban inputs of pollution. The CF, GI and air survival time were all reduced in clams at the polluted sites, while only the CF and dehydration rates were decreased and increased, respectively, at BSM. Long-term analysis revealed that CF and GI tended to decrease over time with episodes of strong amplitude changes and became more resilient to air survival time. In conclusion, the long-term contamination of clams towards metals and elements could compromise the health status of local clam populations. The increased contamination of clams at BSM could represent a risk to the endangered SLE beluga whale population.
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Cope WG, Bergeron CM, Archambault JM, Jones JW, Beaty B, Lazaro PR, Shea D, Callihan JL, Rogers JJ. Understanding the influence of multiple pollutant stressors on the decline of freshwater mussels in a biodiversity hotspot. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:144757. [PMID: 33940701 DOI: 10.1016/j.scitotenv.2020.144757] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
The Clinch River watershed of the upper Tennessee River Basin of Virginia and Tennessee, USA supports one of North America's greatest concentrations of freshwater biodiversity, including 46 extant species of native freshwater mussels (Order Unionida), 20 of which are protected as federally endangered. Despite the global biological significance of the Clinch River, mussel populations are declining in some reaches, both in species richness and abundance. The aim of this study was to evaluate the exposure of adult resident mussels to a suite of inorganic and organic contaminant stressors in distinct sections of the Clinch River that encompassed a range of mussel abundance and health. To provide insight into the potential role of pollutants in the decline of mussels, including within a previously documented "zone of mussel decline", the mainstem Clinch River (8 sites) and its tributaries (4 sites) were examined over two consecutive years. We quantified and related metals and organic contaminant concentrations in mussels to their associated habitat compartments (bed sediment, suspended particulate sediment, pore water, and surface water). We found that concentrations of organic contaminants in resident mussels, particularly the suite of 42 polycyclic aromatic hydrocarbons (PAHs) analyzed, were related to PAH concentrations in all four habitat (media) compartments. Further, PAH concentrations in mussel tissue (range 37.8-978.1 ng/g dry weight in 2012 and 194.3-1073.7 ng/g dry weight in 2013) were negatively related to the spatial pattern in mussel densities (rs = -0.64, p ≤ 0.05 in 2012 and rs = -0.83, p ≤ 0.05 in 2013) within the river, and were highest in the "zone of mussel decline". In contrast, the suite of 22 metals analyzed in resident mussels were largely unrelated to the spatial pattern of variation of metals in the four habitat compartments except for Manganese (Mn; range 3630.5-23,749.2 μg/g dry weight in 2012 and 1540.4-12,605.8 μg/g dry weight in 2013) in surface water (rs = 0.58, p < 0.1) and pore water (rs = 0.76, p ≤ 0.05). This study revealed that PAHs and Mn are important pollutant stressors to mussels in the Clinch River and that they are largely being delivered through the Guest River tributary watershed. Accordingly, future conservation and management efforts would benefit by identifying, and ideally mitigating, the sources of PAHs, Mn, and other current or legacy mining-associated pollutants to the mainstem river and its tributaries.
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Affiliation(s)
- W Gregory Cope
- North Carolina State University, Department of Applied Ecology, Raleigh, NC, USA.
| | - Christine M Bergeron
- North Carolina State University, Department of Applied Ecology, Raleigh, NC, USA
| | | | - Jess W Jones
- Freshwater Mollusk Conservation Center, Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA; U.S. Fish and Wildlife Service, Blacksburg, VA, USA
| | - Braven Beaty
- The Nature Conservancy, Clinch Valley Program, Abingdon, VA, USA
| | - Peter R Lazaro
- North Carolina State University, Department of Biological Sciences, Raleigh, NC, USA
| | - Damian Shea
- North Carolina State University, Department of Biological Sciences, Raleigh, NC, USA
| | - Jody L Callihan
- North Carolina State University, Department of Applied Ecology, Raleigh, NC, USA
| | - Jennifer J Rogers
- Freshwater Mollusk Conservation Center, Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA
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Costa ES, Sá F, Gomes LEO, Silva CA, Lima AT, Lehrback BD, Neto RR. Can severe drought periods increase metal concentrations in mangrove sediments? A case study in eastern Brazil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:142443. [PMID: 33113677 DOI: 10.1016/j.scitotenv.2020.142443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/07/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
Mangrove ecosystems are essential to society, providing ecological and economic services, and play a crucial role in the geochemical land-ocean interface as a sink for potentially toxic metals. This study assessed metals (Al, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Sr and Zn) and arsenic in sediments from three mangrove zones (Tidal Flat, Rhizophora mangle L. and Avicennia schaueriana Stapf & Leechman ex Moldenke forests) during two seasons: spring of 2015 and autumn of 2016, with the latter being a severe drought year. Overall results suggest that Fe/Mn oxyhydroxides and clay minerals control the distribution of metal and arsenic in the Tidal Flat zone. In the mangrove forest however, sulfur and organic matter dominate complexation, with Fe mainly present as insoluble sulfide, and As, Cd, Cu and Zn as metal sulfides or organometallic complexes. In the autumn of 2016, all elements except Cd and Pb had lower concentrations compared to the spring of 2015. Cd and Pb were probably transferred from sources other than mangrove sediments, due to increased saline water intrusion, a consequence of reduced riverine flow, and precipitated in the Rhizophora mangle and Avicennia schaueriana mangrove forests. This increase of Cd and Pb in the mangrove forest suggests potential storage of metal contaminants in the organic rich areas, a change in availability and potential toxicity to fauna and flora and a need for regulatory responses to sediment quality. These results indicate a change in sediment metal contaminant dynamics with the increasing occurrence of extreme weather events - an increased risk to the ecosystem.
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Affiliation(s)
- E S Costa
- Laboratório de Geoquímica Ambiental (LabGAm), Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, ES, Brazil.
| | - F Sá
- Laboratório de Geoquímica Ambiental (LabGAm), Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - L E O Gomes
- Grupo de Ecologia Bêntica, Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitória, ES 29055-460, Brazil
| | - C A Silva
- Laboratório de Geoquímica Ambiental (LabGAm), Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - A T Lima
- Department of Civil Engineering, Technical University of Denmark, Denmark
| | - B D Lehrback
- Laboratório de Geoquímica Ambiental (LabGAm), Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - R R Neto
- Laboratório de Geoquímica Ambiental (LabGAm), Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
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Mansour C, Guibbolini M, Rouane Hacene O, Saidane Mosbahi D, Risso-de Faverney C. Oxidative Stress and Damage Biomarkers in Clam Ruditapes decussatus Exposed to a Polluted Site: The Reliable Biomonitoring Tools in Hot and Cold Seasons. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 78:478-494. [PMID: 32016484 DOI: 10.1007/s00244-020-00713-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
In the present study, a multi-biomarker approach was used to assess the biological effects of metal pollution in the southern lagoon of Tunis, on clam Ruditapes decussatus both in "hot" (in summer) and "cold" (in winter) seasons. Clams were collected in August 2015 and February 2016 from three sites of the lagoon and from Louza considered a reference site. The concentrations of five trace metals (cadmium, copper, iron, lead, and zinc) in the soft tissues of R. decussatus were evaluated at the sampling sites. A core of biomarkers indicative of (a) neurotoxicity (acetylcholinesterase, AChE); (b) biotransformation (glutathione S-transferase, GST); (c) oxidative stress (catalase, CAT; total glutathione peroxidase, T-GPx; total glutathione peroxidase, T-GPx; selenium-dependent glutathione peroxidase, Se-GPx; glutathione reductase, GR; superoxide dismutase, SOD) (d) lipid peroxidation (malondialdhyde, MDA level), and (e) apoptotic process (caspase 3-like, CSP3) was selected for measurements of environmental effects on the populations of clams collected from the different sampling sites. The results of metal bioaccumulation in soft tissues of Ruditapes decussatus revealed a high pollution in the South Lagoon of Tunis with spatial variation and relatively high levels at the navigation channel. Anthropogenic pollutants in the lagoon led to the activation of antioxidant defense and biotransformation enzymes to oxidative damage of the membrane and activation of apoptosis, and revealed neurotoxicity. Among this core of biomarkers, the antioxidants enzymes (CAT, SOD, GR, and GPx) were very sensitive, allowing the discrimination among sites and pointing to the navigation channel as the most impacted site in the southern lagoon of Tunis. Moreover, a significant effect of season was recorded on biomarkers responses (e.g., CAT, GR, SOD, AChE, and CSP3 activities and MDA levels) with higher levels in winter than in summer, probably influenced by the reproductive stage and food availability. Finally, the measurement of the selected core of biomarkers in the whole soft tissues of clams was considered as an integrated indicator of environmental stress. Moreover, R. decussatus proved to be a remarkable sentinel species capable to establish a reliable diagnosis of the health status of the marine environment in different areas of the southern lagoon of Tunis, both in "hot" and "cold" seasons.
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Affiliation(s)
- Chalbia Mansour
- Laboratory of Analysis, Treatment and Valorization of Pollutants of the Environment and Products, Faculty of Pharmacy, University of Monastir, Ibn Sina Street, 5000, Monastir, Tunisia.
| | - Marielle Guibbolini
- University Côte d'Azur, CNRS, ECOSEAS, UMR 7035, 28 Avenue Valrose BP 71, 06108, Nice Cedex 2, France
| | - Omar Rouane Hacene
- Laboratoire Réseau de Surveillance Environnementale (LRSE), Department of Biology, University of Oran, 1 Ahmed Ben Bella, BP 1524 El M'naouer, 31000, Oran, Algeria
| | - Dalila Saidane Mosbahi
- Laboratory of Analysis, Treatment and Valorization of Pollutants of the Environment and Products, Faculty of Pharmacy, University of Monastir, Ibn Sina Street, 5000, Monastir, Tunisia
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11
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Frachini E, Constantino LV, Abrao T, Santos MJ. A new approach to evaluate toxic metal transport in a catchment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:234. [PMID: 32170528 DOI: 10.1007/s10661-019-7950-x] [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: 01/27/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Competitive sorption and desorption of Cd2+, Pb2+, and Hg2+ onto riverbank and sediment samples of an area impacted by pyritic residue in a Southern Brazilian catchment were evaluated. Although these ions are considered poorly mobile, a new approach has been proposed to assess their behavior and associated risk. In this sense, factorial design and three-dimensional surface methodology are proposed to describe the competitive sorption behavior of the metal ion in the environmental matrix, as well as an innovative mobilization factor (MF) to describe the desorption rate from the integration of the normalized difference of sorption-desorption fluorescence peaks. Sorption was carried out with a central composite factorial design (23) to estimate simultaneous effects of independent variables. Three-dimensional surface analysis indicated increasing Cd2+ equilibrium concentration (Ceq) with Hg2+ and Pb2+ initial concentration (Ci), showing synergistic effect and low Cd2+ affinity to the solid phase. Statistical analysis presented [Formula: see text] as a significant variable for cadmium and lead dynamics, although [Formula: see text] was also significant for Hg2+ releasing to the liquid phase. After integrating the sorption and desorption fluorescence peaks, the MF for Cd2+, Pb2+, and Hg2+ was around 0.2, 0.5, and 0.1 in riverbank sediment, and 0.3, 0.9, and 0.1 in sediment, respectively. Hence, consistent ion mobilization along the river was observed, with Pb2+ mobilizing 9 and 6 times more than Hg2+ and Cd2+, respectively. The transport of ions such as Pb2+ and Hg2+, usually considered immobile, has indeed occurred, causing contamination through the watershed and increasing environmental risk. Graphical Abstract A new approach to determine toxic metal mobilization factor in a river catchment.
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Affiliation(s)
- Emilli Frachini
- Chemistry Department, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Parana, 86051-990, Brazil
| | - Leonel Vinicius Constantino
- Chemistry Department, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Parana, 86051-990, Brazil
| | - Taufik Abrao
- Electrical Engineering Department, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Parana, 86051-990, Brazil
| | - Maria Josefa Santos
- Chemistry Department, Universidade Estadual de Londrina, Rod. Celso Garcia Cid-PR445, Londrina, Parana, 86051-990, Brazil.
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12
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Montalvão MF, Chagas TQ, da Silva Alvarez TG, Mesak C, da Costa Araújo AP, Gomes AR, de Andrade Vieira JE, Malafaia G. How leachates from wasted cigarette butts influence aquatic life? A case study on freshwater mussel Anodontites trapesiali. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 689:381-389. [PMID: 31277005 DOI: 10.1016/j.scitotenv.2019.06.385] [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: 05/15/2019] [Revised: 06/17/2019] [Accepted: 06/23/2019] [Indexed: 06/09/2023]
Abstract
There are several reports on the damage smoking causes to human health available in the literature, but little is known about the environmental and biological consequences from inappropriate cigarette butt (CB) disposal in urban and natural environments. The immunotoxic, morphotoxic and mutagenic potential of leachates from cigarette butts (LCB) diluted at environmentally relevant rates (LCB1x: 1.375%; LCB10x: 13.75%) was evaluated in adult representatives of the bivalve species Anodontites trapesialis, which was adopted as model organism. Type II hyalinocytes and granulocytes (phagocytic cells) frequency increased in the hemolymph of subjects exposed to the pollutant for 14 days. Based on this outcome, LCB chemical constituents did not induce immunotoxic effects. The treatments also did not seem to have any impact on the subjects' hemocitary morphometry parameters: diameter, area, perimeter, circularity and nucleus - cytoplasm ratio. However, subjects in groups LCB1x and LCB10x recorded a larger number of hyalinocytes with some nuclear abnormality such as micronucleus, blebbed nucleus, asymmetric constriction nucleus, and nuclear multilobulation and binucleation. The association between these abnormalities and the treatments was confirmed by the Cr, Ni, Pb, Zn, Mn and Na bioaccumulation in tissue samples of the bivalve models exposed to LCB. To the best of our knowledge, this is the first report on LCB mutagenicity in representatives of a freshwater bivalve group. Given the chemical complexity of the addressed pollutants, it is imperative to develop further investigations about the topic.
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Affiliation(s)
- Mateus Flores Montalvão
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Thales Quintão Chagas
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Tenilce Gabriela da Silva Alvarez
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Carlos Mesak
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Amanda Pereira da Costa Araújo
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | - Alex Rodrigues Gomes
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil
| | | | - Guilherme Malafaia
- Post-graduation Program in Cerrado Natural Resource Conservation and Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil; Biological Research Laboratory, Goiano Federal Institution - Urutaí Campus, GO, Brazil.
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13
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de Oliveira LF, Cabral MT, Nascimento CB, Magni S, Binelli A, Martinez CBDR. Single and Combined Effects of Zinc and Manganese on the Bivalve Anodontites trapesialis: Complementary Endpoints to Support the Hypothesis of Manganese Promoting Metabolic Suppression in Gills. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2480-2485. [PMID: 31415101 DOI: 10.1002/etc.4573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/28/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
Manganese (Mn) might stimulate the valve closure reflex in the freshwater bivalve Anodontites trapesialis, leading to metabolic suppression, whereas zinc (Zn) is not able to modify this behavior. To investigate this particular response, we exposed A. trapesialis specimens to Mn (0.5 mg L-1 ) and Zn (1.0 mg L-1 ) alone, and to their mixture, to measure further endpoints in different clam tissues: glycogen level in gills, and calcium (Ca2+ ), sodium (Na+ ), and chloride (Cl- ) concentrations in the hemolymph. Furthermore, we used cutting-edge technology, proteomics, to evaluate modifications in protein patterns under the 3 exposure tests. The main results highlighted that only Mn caused a clear drop in glycogen levels in gills, an increase in Ca2+ and Na+ , and a simultaneous decrease in Cl- concentration in the hemolymph. The proteomic analysis confirmed that Mn promoted more effects in A. trapesialis than the other tested conditions, because the number of proteins modulated was higher than the results obtained after exposure to Zn and the mixture. Moreover, 11 of the 12 modulated proteins were down-expressed. These results consolidate the hypothesis that Mn might suppress gill metabolic rate in A. trapesialis. Environ Toxicol Chem 2019;38:2480-2485. © 2019 SETAC.
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Affiliation(s)
- Luciana Fernandes de Oliveira
- Department of Physiological Sciences, State University of Londrina, Londrina, Brasil
- Department of Biosciences, University of Milan, Milan, Italy
| | | | | | - Stefano Magni
- Department of Biosciences, University of Milan, Milan, Italy
| | - Andrea Binelli
- Department of Biosciences, University of Milan, Milan, Italy
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He A, Liu X, Qu L, Gao Y, Feng J, Zhu L. Comparison of the General Threshold Model of Survival and Dose-Response Models in Simulating the Acute Toxicity of Metals to Danio rerio. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2169-2177. [PMID: 31343764 DOI: 10.1002/etc.4534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/24/2019] [Accepted: 07/05/2019] [Indexed: 06/10/2023]
Abstract
We exposed zebrafish (Danio rerio) to different concentrations of lead and cadmium, and monitored them for survival at 24, 48, 72, and 96 h. Metal toxicity was predicted and compared using the dose-response and general threshold survival models in terms of required data sets, fit performance, and applicability. Environ Toxicol Chem 2019;38:2169-2177. © 2019 SETAC.
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Affiliation(s)
- An He
- Key Laboratory of the Pollution Process and Environmental Criteria of the Ministry of Education and Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Xinyong Liu
- Construction and Administration Bureau of South-to-North Water Diversion Middle Route Project, Tianjin, China
| | - Liang Qu
- Construction and Administration Bureau of South-to-North Water Diversion Middle Route Project, Tianjin, China
| | - Yongfei Gao
- Key Laboratory of the Pollution Process and Environmental Criteria of the Ministry of Education and Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Jianfeng Feng
- Key Laboratory of the Pollution Process and Environmental Criteria of the Ministry of Education and Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, China
| | - Lin Zhu
- Key Laboratory of the Pollution Process and Environmental Criteria of the Ministry of Education and Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, College of Environmental Science and Engineering, Nankai University, Tianjin, China
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15
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Uluturhan E, Darılmaz E, Kontas A, Bilgin M, Alyuruk H, Altay O, Sevgi S. Seasonal variations of multi-biomarker responses to metals and pesticides pollution in M. galloprovincialis and T. decussatus from Homa Lagoon, Eastern Aegean Sea. MARINE POLLUTION BULLETIN 2019; 141:176-186. [PMID: 30955723 DOI: 10.1016/j.marpolbul.2019.02.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/14/2019] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
Biomarkers (CAT, SOD, GPx, and AChE) were investigated in hepatopancreas and soft tissues of mussels (Mytilus galloprovincialis) and clams (Tapes decussatus) in response to metal and pesticide pollutions in Homa Lagoon. Mussel and clam samples were seasonally collected in January, May, August and November 2015. According to the results, higher metal concentrations determined in the soft tissues of both species in January. Hepatopancreas was found to accumulate higher levels of metals than soft tissue. Metal deposition potential in clams were higher than mussels. Pesticide levels were below detection limits in clams. In mussels, only 4,4'-DDE was detected in soft tissues and hepatopancreas in November. Highest AChE, CAT, SOD and GPx activities in mussels were determined in January. On the other hand, maximum AChE and CAT activities in clams were found in November. Seasonal variations of metals and biomarker levels might be related to species-specific physiology and environmental conditions.
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Affiliation(s)
- Esin Uluturhan
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey.
| | - Enis Darılmaz
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey
| | - Aynur Kontas
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey
| | - Mustafa Bilgin
- Dokuz Eylul University, Institute of Natural and Applied Sciences, Tinaztepe Campus, Izmir, Turkey
| | - Hakan Alyuruk
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey
| | - Oya Altay
- Dokuz Eylul University, Institute of Marine Sciences and Technology, Inciraltı, 35340 Izmir, Turkey
| | - Selin Sevgi
- Dokuz Eylul University, Institute of Natural and Applied Sciences, Tinaztepe Campus, Izmir, Turkey
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16
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Gao Y, Kang L, Zhang Y, Feng J, Zhu L. Toxicokinetic and toxicodynamic (TK-TD) modeling to study oxidative stress-dependent toxicity of heavy metals in zebrafish. CHEMOSPHERE 2019; 220:774-782. [PMID: 30611076 DOI: 10.1016/j.chemosphere.2018.12.197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/24/2018] [Accepted: 12/30/2018] [Indexed: 05/13/2023]
Abstract
Adverse outcome pathways (AOP) have been proposed as a new method to improve the ecological risk assessment of pollutants, but it requires quantitation linkage between exposure, biomarker response and toxicity of pollutants. A toxicokinetic and toxicodynamic (TK-TD) model was used to quantify AOP of the toxicity of Cd and Pb to zebrafish, including the quantitative relationship between Cd and Pb accumulation in gill and oxidative damage level based on ROS or MDA, and LC50 values at different times. Significant relationships were found between the oxidative damage level characterized by ROS and MDA content and Cd or Pb accumulation in gill (R2 > 0.60), and the TK model could better simulate the Pb accumulation in the gills (R2 > 0.60) than Cd. The increasing of Cd or Pb concentrations induced the generation of ROS and the formation of ROS initiated the fluctuation of MDA level in the cells as compared to controls (p < 0.05). For the individual level effect, the Damage Assessment Model (DAM) could successfully explain the change of LC50-ROS and LC50-MDA values at different times (R2 > 0.99). Our findings suggested that the TK-TD model based on ROS and MDA could be used as a quantitative AOP to predict toxicity of metals to zebrafish.
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Affiliation(s)
- Yongfei Gao
- Key Laboratory of Pollution Process and Environmental Criteria of Ministry of Education and Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Lili Kang
- Key Laboratory of Pollution Process and Environmental Criteria of Ministry of Education and Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Yan Zhang
- Key Laboratory of Pollution Process and Environmental Criteria of Ministry of Education and Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Jianfeng Feng
- Key Laboratory of Pollution Process and Environmental Criteria of Ministry of Education and Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China.
| | - Lin Zhu
- Key Laboratory of Pollution Process and Environmental Criteria of Ministry of Education and Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
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