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Rodrigues IC, Santos-Ferreira N, Silva D, da Silva CC, Inácio ÂS, Nascimento MSJ, da Costa PM. A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal. Microorganisms 2023; 11:microorganisms11020338. [PMID: 36838302 PMCID: PMC9965842 DOI: 10.3390/microorganisms11020338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
As filter-feeding animals farmed in water bodies exposed to anthropogenic influences, oysters can be both useful bioremediators and high-risk foodstuffs, considering that they are typically consumed raw. Understanding the dynamic of bacterial and viral load in Pacific oyster (Crassostrea gigas) tissues, hemolymph, outer shell surface biofilm, and farming water is therefore of great importance for microbiological risk assessment. A one-year survey of oysters collected from a class B production area (Canal de Mira, on the Portuguese western coast) revealed that these bivalve mollusks have a good depurating capacity with regard to bacteria, as Salmonella spp. and viable enterococci were not detected in any oyster flesh (edible portion) samples, despite the fact that these bacteria have regularly been found in the farming waters. Furthermore, the level of Escherichia coli contamination was clearly below the legal limit in oysters reared in a class B area (>230-≤4600 MPN E. coli/100 g). On the contrary, norovirus was repeatedly detected in the digestive glands of oysters sampled in autumn, winter, and spring. However, their presence in farming waters was only detected during winter.
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Affiliation(s)
- Inês C. Rodrigues
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Nânci Santos-Ferreira
- KU Leuven-Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, B-3000 Leuven, Belgium
| | - Daniela Silva
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Carla Chiquelho da Silva
- Department of Quality Control and Food Safety, Grupo Jerónimo Martins, Rua Nossa Sra. do Amparo, 4440-232 Porto, Portugal
| | - Ângela S. Inácio
- CNC-Center for Neurosciences and Cell Biology, Faculty of Medicine, University of Coimbra, Rua Larga, Polo I, 3004–504 Coimbra, Portugal
| | - Maria São José Nascimento
- Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Paulo Martins da Costa
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Terminal de Cruzeiros do Porto, de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
- Correspondence: ; Tel.: +351-220428306
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Santos FR, Morais PCV, Nascimento RF, Cavalcante RM. Tracking the historical urban and rural sources of fecal pollution in a South American tropical semi-arid region using sterols and endocrine-disrupting chemicals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156497. [PMID: 35675885 DOI: 10.1016/j.scitotenv.2022.156497] [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: 12/03/2021] [Revised: 05/14/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
Sterols and endocrine-disrupting chemicals were analyzed in two dated sediment cores collected in the Jaguaribe river to determine the recent decades' influence of urbanization and agropastoral activities on the inputs of fecal pollution in a semi-arid region of Brazil. Stigmasterol and sitosterol were the most abundant of the 6 sterols examined in both cores, indicating an important contribution of organic matter from mangrove forests to the study region. Coprostanol presented a continuous increase in concentrations from the 1930s to the 2000s in one core, however, showing higher concentrations (>100 ng g-1) in the upper layers of both cores. The sterols diagnostic ratios indicated fecal pollution through both cores, especially from the 1940s to 1970s. The coprostanol levels followed the variations in population growth in the state of Ceará. Estriol and estrone were the most abundant estrogenic hormones found in both cores. These compounds are probably related to the intense livestock activities in the Ceará state, especially after the 1970s. The baseline levels of fecal sterols and estrogen hormones found in this study possibly represent a previous unimpacted scenario and may be used for future evaluations of fecal pollution from urbanization and livestock activities.
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Affiliation(s)
- Felipe R Santos
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil; Instituto Oceanográfico, Universidade de São Paulo, Praça do Oceanográfico, 191, 05508-120 São Paulo, SP, Brazil.
| | - Pollyana C V Morais
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil
| | - Ronaldo F Nascimento
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Rivelino M Cavalcante
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil.
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Meeting the Salinity Requirements of the Bivalve Mollusc Crassostrea gigas in the Depuration Process and Posterior Shelf-Life Period to Improve Food Safety and Product Quality. WATER 2021. [DOI: 10.3390/w13081126] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Microbiological contamination of bivalve molluscs is one of the major concerns inherent to food safety, thus depuration is frequently needed to assure food safety levels associated with their consumption. Salinity plays an important role in the metabolic activity of bivalves and as such can influence their depuration capacity. This study aimed to evaluate the effect of salinity (25, 30, 35 and 40) on the efficiency of the depuration process, along with the quality and shelf-life of Crassostrea gigas. For this, a 24-h depuration was carried out, followed by a storage period at 5 ± 1 °C for six days. Microbiological analyses and biochemical parameters related to oxidative stress response were analysed. Escherichia coli load was reduced in only 24 h, disregarding the salinity of the system. After the shelf-life period, the activity of the antioxidant defences at salinities 35 and 40 is higher but is still not sufficient to avoid lipid peroxidation. Over time, there is a decrease in oyster metabolism probably due to being chilled and to the action of exposure to air. In sum, this study suggests salinities between 25 and 30 as preferential for the depuration process of C. gigas and subsequent quality during shelf-life.
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Ranjbar Jafarabadi A, Mashjoor S, Mohamadjafari Dehkordi S, Riyahi Bakhtiari A, Cappello T. Steroid Fingerprint Analysis of Endangered Caspian Seal ( Pusa caspica) through the Gorgan Bay (Caspian Sea). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:7339-7353. [PMID: 32459473 DOI: 10.1021/acs.est.0c01479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The profile of steroid congeners was evaluated in Caspian seals Pusa caspica by age, sex, and tissue-specific bioaccumulation, and compared with that of abiotic matrices (seawater, surface sediment, and suspended particulate materials, SPMs) from Miankaleh Wildlife/Gorgan Bay, (Caspian Sea, Iran). To identify the level of human fecal contamination, ∑25 sterol congeners were measured in all abiotic/biotic samples, revealing coprostanol, a proxy for human feces, as the most abundant sterol (seawater: 45.1-20.3 ng L-1; surface sediment: 90.2-70.3 ng g-1 dw; SPMs: 187.7-157.6 ng g-1 dw). The quantification of ∑25 sterols in seals followed the order of brain > liver > kidney > heart > blood > spleen > muscle > intestine > blubber > fur, and in both sexes coprostanol level (8.95-21.01% of ∑25s) was higher in blubber and fur, followed by cholesterol in brain, liver, kidney, heart, and blood, cholestanone in intestine and muscle, and β-sitosterol in spleen. Though no age/sex differentiation was observed, the mean concentration of ∑25s was higher in male than females and pup. Different diagnostic ratios revealed sterols originating from human and nonhuman sewage sources. Findings pinpoint the urgent necessity to investigate the ecotoxicity of fecal sterols in mammals, and consequent implications for human health.
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Affiliation(s)
- Ali Ranjbar Jafarabadi
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Mazandaran 14115-111, Iran
| | - Sakineh Mashjoor
- Department of Marine biology, Faculty of Marine Science and Technology, University of Hormozgan, Bandar Abbas, Iran
- Marine Pharmaceutical Science Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Shirin Mohamadjafari Dehkordi
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Mazandaran 14115-111, Iran
| | - Alireza Riyahi Bakhtiari
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, Noor, Mazandaran 14115-111, Iran
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina 98122, Italy
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Distributions and Sources of Sedimentary Sterols as well as Their Indications of Sewage Contamination in the Guanting Reservoir, Beijing. J CHEM-NY 2020. [DOI: 10.1155/2020/3050687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, domestic sewage contamination in the Guanting Reservoir, one of the major water source reservoirs of Beijing, was examined using sterols as tracing molecular markers. Nineteen sediment samples in seven cross-sections in the Guanting Reservoir were collected, extracted, and analyzed by gas chromatography-mass spectrometry (GC-MS). Seven different sterols were identified and quantified from the surface sediment samples in the Guanting Reservoir. The total sterols in sediments of the reservoir ranged from 2.78 μg g−1 to 40.31 μg g−1 with the average concentration of 13.53 μg g−1. Concentrations of fecal sterols, coprostanol and epicoprostanol in the Guishui River reservoir area were generally higher than in the Yongding River reservoir area. The average concentrations of coprostanol and epicoprostanol in the Yongding River reservoir area were 0.41 μg g−1 and 0.34 μg g−1, respectively. The average concentrations of coprostanol and epicoprostanol in the Guishui River reservoir area were 0.72 μg g−1 and 0.70 μg g−1, respectively. Ratios of sterols indicated higher sewage pollution in regions close to river mouths and reservoir banks. Principal component analysis (PCA) indicated three distinct sources of sterols from domestic sewage, phytoplankton, and terrestrial higher plants. This article identified the current situation of sewage contamination in sediments of the Guanting Reservoir, which could provide important references for further implementation of pollution control and basin management in the region.
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Nakakuni M, Yamasaki Y, Yoshitake N, Takehara K, Yamamoto S. Methyl Ether-Derivatized Sterols and Coprostanol Produced via Thermochemolysis Using Tetramethylammonium Hydroxide (TMAH). Molecules 2019; 24:molecules24224040. [PMID: 31703423 PMCID: PMC6928973 DOI: 10.3390/molecules24224040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/31/2019] [Accepted: 11/05/2019] [Indexed: 12/13/2022] Open
Abstract
Sterols are widely distributed in nature from lipids in organisms to sediments. As a conventional method, extraction and derivatization with TMS have been applied for sterol analysis, requiring a long preparation time for gas chromatography–mass spectrometry analysis. In this study, for sterol analysis, thermochemolysis using tetramethylammonium hydroxide (TMAH) was applied. This method performs hydrolysis and methylation simultaneously; thus, free and ether-bonding sterols can be analyzed as sterol methyl ethers in a relatively short time period. A sediment sample from a tideland (the Yatsu tideland, Japan) was analyzed using the TMAH method, and we detected more than 10 sterols, which include cholest-5-en-3β-ol (cholesterol), 24-ethylcholest-5-en-3β-ol (sitosterol), 24-methylcholesta-5,22E-3β-ol (brassicasterol), 24-ethylcholesta-5,24(28)Z-dien-3β-ol (isofucosterol), 4α,23,24-trimethyl-5α(H)-cholest-22E-en-3β- ol (dinosterol), and 5β(H)-cholestan-3β-ol (coprostanol). The detection of the various sterols can be attributed to multiple natural and artificial sources around the Yatsu tideland. In this paper, the mass spectra of these sterols are provided together with an interpretation of their fragmentation patterns. Additionally, the fecal pollution in the Yatsu tideland is discussed in the context of the detection of coprostanol.
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Affiliation(s)
- Masatoshi Nakakuni
- Department of Science and Technology, Soka University, 1-236 Tangi-machi, Hachioji City, Tokyo 192-8577, Japan
- Correspondence:
| | - Yoshimi Yamasaki
- Department of Environmental Engineering for Symbiosis, Graduate School of Engineering, Soka University, 1-236 Tangicho, Hachioji, Tokyo 192-8577, Japan; (Y.Y.); (N.Y.); (K.T.); (S.Y.)
| | - Nonoka Yoshitake
- Department of Environmental Engineering for Symbiosis, Graduate School of Engineering, Soka University, 1-236 Tangicho, Hachioji, Tokyo 192-8577, Japan; (Y.Y.); (N.Y.); (K.T.); (S.Y.)
| | - Keiko Takehara
- Department of Environmental Engineering for Symbiosis, Graduate School of Engineering, Soka University, 1-236 Tangicho, Hachioji, Tokyo 192-8577, Japan; (Y.Y.); (N.Y.); (K.T.); (S.Y.)
| | - Shuichi Yamamoto
- Department of Environmental Engineering for Symbiosis, Graduate School of Engineering, Soka University, 1-236 Tangicho, Hachioji, Tokyo 192-8577, Japan; (Y.Y.); (N.Y.); (K.T.); (S.Y.)
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7
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Aminot Y, Sayfritz SJ, Thomas KV, Godinho L, Botteon E, Ferrari F, Boti V, Albanis T, Köck-Schulmeyer M, Diaz-Cruz MS, Farré M, Barceló D, Marques A, Readman JW. Environmental risks associated with contaminants of legacy and emerging concern at European aquaculture areas. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:1301-1310. [PMID: 31252127 DOI: 10.1016/j.envpol.2019.05.133] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/17/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
The contamination of marine ecosystems by contaminants of emerging concern such as personal care products or per- and polyfluoroalkyl substances is of increasing concern. This work assessed the concentrations of selected contaminants of emerging concern in water and sediment of European aquaculture areas, to evaluate their co-variation with legacy contaminants (polycyclic aromatic hydrocarbons) and faecal biomarkers, and estimate the risks associated with their occurrence. The 9 study sites were selected in 7 European countries to be representative of the aquaculture activities of their region: 4 sites in the Atlantic Ocean and 5 in the Mediterranean Sea. Musks, UV filters, preservatives, per- and polyfluoroalkyl substances and polycyclic aromatic hydrocarbons were detected in at least one of the sites with regional differences. While personal care products appear to be the main component of the water contamination, polycyclic aromatic hydrocarbons were mostly found in sediments. As expected, generally higher levels of personal care products were found in sewage impacted sites, urbanised coasts and estuaries. The risk assessment for water and sediment revealed a potential risk for the local aquatic environment from contaminants of both legacy and emerging concern, with a significant contribution of the UV filter octocrylene. Despite marginal contributions of per- and polyfluoroalkyl substances to the total concentrations, PFOS (perfluorooctane sulfonate) aqueous concentrations combined to its low ecotoxicity thresholds produced significant hazard quotients indicating a potential risk to the ecosystems.
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Affiliation(s)
- Yann Aminot
- Biogeochemistry Research Centre, University of Plymouth, Plymouth, United Kingdom; IFREMER LBCO, Rue de l'Ile d'Yeu, BP 21105, 44311, Nantes, Cedex 3, France.
| | - Stephen J Sayfritz
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, 0349, Oslo, Norway
| | - Kevin V Thomas
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, 0349, Oslo, Norway; QAEHS, Queensland Alliance for Environmental Health Science, The University of Queensland, Brisbane, Australia
| | - Lia Godinho
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA, I.P.), Avenida de Brasília, 1449-006, Lisbon, Portugal
| | - Elena Botteon
- Aeiforia Srl, Località Faggiola 12-16, 29027, Gariga, Podenzano, PC, Italy; Di.S.T.A.S., Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Federico Ferrari
- Aeiforia Srl, Località Faggiola 12-16, 29027, Gariga, Podenzano, PC, Italy
| | - Vasiliki Boti
- Department of Chemistry, University of Ioannina, Panepistimioupolis, 45110, Ioannina, Greece
| | - Triantafyllos Albanis
- Department of Chemistry, University of Ioannina, Panepistimioupolis, 45110, Ioannina, Greece
| | - Marianne Köck-Schulmeyer
- Institute of Environmental Assessment and Water Research, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18, 08034, Barcelona, Spain
| | - M Silvia Diaz-Cruz
- Institute of Environmental Assessment and Water Research, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18, 08034, Barcelona, Spain
| | - Marinella Farré
- Institute of Environmental Assessment and Water Research, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18, 08034, Barcelona, Spain
| | - Damià Barceló
- Institute of Environmental Assessment and Water Research, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18, 08034, Barcelona, Spain
| | - António Marques
- Division of Aquaculture and Upgrading (DivAV), Portuguese Institute for the Sea and Atmosphere (IPMA, I.P.), Avenida de Brasília, 1449-006, Lisbon, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Porto, Portugal
| | - James W Readman
- Biogeochemistry Research Centre, University of Plymouth, Plymouth, United Kingdom; Plymouth Marine Laboratory, Prospect Place, the Hoe, Plymouth, PL1 3DH, United Kingdom
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Cachada A, Pato P, Ferreira da Silva E, Patinha C, Carreira RS, Pardal M, Duarte AC. Spatial distribution of organic and inorganic contaminants in Ria de Aveiro Lagoon: A fundamental baseline dataset. Data Brief 2019; 25:104285. [PMID: 31463345 PMCID: PMC6706762 DOI: 10.1016/j.dib.2019.104285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/07/2019] [Accepted: 07/12/2019] [Indexed: 10/26/2022] Open
Abstract
This paper presents baseline data of sediments characterization from Ria de Aveiro lagoon (Portugal). Twenty-two intertidal surface sediments were collected and analysed for their pseudo-total content of 25 major and trace elements and for their total content of PAHs (Sum16) and PCBs (Sum13). The fine fraction percentage and total organic carbon content were also determined. Ria de Aveiro Lagoon has been the target of several studies during the last decades, and it has been pointed out as a hot spot in terms of contamination García-Seoane et al., 2016. Nevertheless, data about sediments contamination is mostly focused on Hg Lillebø et al.,2011, and in a specific area of the lagoon Grilo et al., 2013, and there is not a clear and global picture about the spatial distribution of other elements, and especially of organic contaminants. Thus, this baseline dataset is of utmost importance for researchers and planners and it can be used to monitor the effect of disturbances, such as: dredging activities; hydrodynamic changes (either due to human activities or extreme events); external inputs (new discharges from industries and wastewater plants, etc).
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Affiliation(s)
- Anabela Cachada
- CIIMAR-UP, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal.,Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Pedro Pato
- CESAM & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - Carla Patinha
- Geobiotec & Department of Geosciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Renato S Carreira
- LabMAM, Chemistry Department, Pontifical Catholic University, 22451-900, Rio de Janeiro, Brazil
| | - Miguel Pardal
- CFE & Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Armando C Duarte
- CESAM & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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9
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Gadelha JR, Rocha AC, Camacho C, Eljarrat E, Peris A, Aminot Y, Readman JW, Boti V, Nannou C, Kapsi M, Albanis T, Rocha F, Machado A, Bordalo A, Valente LMP, Nunes ML, Marques A, Almeida CMR. Persistent and emerging pollutants assessment on aquaculture oysters (Crassostrea gigas) from NW Portuguese coast (Ria De Aveiro). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 666:731-742. [PMID: 30812007 DOI: 10.1016/j.scitotenv.2019.02.280] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
The study aim was to determine a range of relevant persistent and emerging pollutants in oysters produced in an aquaculture facility located in an important production area, to assure their safety for human consumption. Pollutants, including 16 PAHs, 3 butyltins (BTs), 29 flame retardants (FRs, including organophosphate and halogenated FRs), 35 pesticides (including 9 pyrethroid insecticides) and 13 personal care products (PCPs, including musks and UV filters), were determined in oysters' tissues collected during one year in four seasonal sampling surveys. The seasonal environmental pollution on the production site was evaluated by water and sediment analysis. Furthermore, oysters' nutritional quality was also assessed and related with the consumption of healthy seafood, showing that oysters are a rich source of protein with low fat content and with a high quality index all year around. Results showed that most analysed pollutants were not detected either in oyster tissues or in environmental matrixes (water and sediments). The few pollutants detected in oyster tissues, including both regulated and non-legislated pollutants, such as a few PAHs (fluorene, phenanthrene, anthracene, fluoranthene, pyrene and indenopyrene), FRs (TPPO, TDCPP, DCP, BDE-47, BDE-209 and Dec 602) and PCPs (galaxolide, galaxolidone, homosalate and octocrylene), were present at low levels (in the ng/g dw range) and did not represent a significant health risk to humans. The observed seasonal variations related to human activities (e.g. tourism in summer) highlights the need for environmental protection and sustainable resource exploration for safe seafood production.
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Affiliation(s)
- Juliana R Gadelha
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - A Cristina Rocha
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; MARE-UC, Incubadora de Empresas da Figueira da Foz, Parque Industrial e Empresarial da Figueira da Foz (Laboratório MAREFOZ), Rua das Acácias Lote 40A, 3090-380 Figueira da Foz, Portugal
| | - Carolina Camacho
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Division of Aquaculture, Seafood Upgrading and Bioprospection, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisboa, Portugal
| | - Ethel Eljarrat
- Institute of Environmental Assessment and Water Research, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18, 08034 Barcelona, Spain
| | - Andrea Peris
- Institute of Environmental Assessment and Water Research, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18, 08034 Barcelona, Spain
| | - Yann Aminot
- Biogeochemistry Research Centre, Plymouth University, Plymouth, United Kingdom
| | - James W Readman
- Biogeochemistry Research Centre, Plymouth University, Plymouth, United Kingdom
| | - Vasiliki Boti
- Laboratory of Analytical Chemistry, Chemistry Department, University of Ioannina, Panepistimioupolis, Ioannina GR 45110, Greece
| | - Christina Nannou
- Laboratory of Analytical Chemistry, Chemistry Department, University of Ioannina, Panepistimioupolis, Ioannina GR 45110, Greece
| | - Margarita Kapsi
- Laboratory of Analytical Chemistry, Chemistry Department, University of Ioannina, Panepistimioupolis, Ioannina GR 45110, Greece
| | - Triantafyllos Albanis
- Laboratory of Analytical Chemistry, Chemistry Department, University of Ioannina, Panepistimioupolis, Ioannina GR 45110, Greece
| | - Filipa Rocha
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Ana Machado
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Adriano Bordalo
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Institute of Biomedical Sciences (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Luísa M P Valente
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Institute of Biomedical Sciences (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Maria Leonor Nunes
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Division of Aquaculture, Seafood Upgrading and Bioprospection, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisboa, Portugal
| | - António Marques
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Division of Aquaculture, Seafood Upgrading and Bioprospection, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisboa, Portugal
| | - C Marisa R Almeida
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal.
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10
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Governance for Sustainability of Estuarine Areas—Assessing Alternative Models Using the Case of Ria de Aveiro, Portugal. WATER 2019. [DOI: 10.3390/w11040846] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Estuaries are one of the most productive and complex types of ecosystems supporting a wide range of economic activities. Departing from a set of governance problems and emergent goals, such as sustainability or climate change adaptation faced by an estuarine case study area, Ria de Aveiro, in Portugal, this article assesses the adequacy of alternative governance models under the existing water resources legal framework and traditional political culture. It shows that apart from the centrally-based compliance model, all other alternatives require high degrees of institutional reforms. Moreover, although the model based on a dedicated new agency, long preferred by many users of Ria de Aveiro, is the most understandable and focused, it does not assure the pursuance of adaptability or collaboration, which are considered essential for estuary governance. As it relies on collective action and multi-level and multi-agent contexts, estuarine governance may require a new institutional design. Where one begins a process of institutional change, however, is not a simple issue to address and demands a deeper analysis, particularly on the types of required institutional changes, as well as on their impacts on policy and decision-making outcomes over estuarine environments and associated socio-ecological networks.
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11
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Santos FR, Martins DA, Morais PCV, Oliveira AHB, Gama AF, Nascimento RF, Choi-Lima KF, Moreira LB, Abessa DMS, Nelson RK, Reddy CM, Swarthout RF, Cavalcante RM. Influence of anthropogenic activities and risk assessment on protected mangrove forest using traditional and emerging molecular markers (Ceará coast, northeastern Brazil). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 656:877-888. [PMID: 30625674 DOI: 10.1016/j.scitotenv.2018.11.380] [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: 07/16/2018] [Revised: 11/17/2018] [Accepted: 11/25/2018] [Indexed: 06/09/2023]
Abstract
Anthropogenic molecular markers were used to assess chemicals inputs and ecological risks associated from multiple sources to sediments in one of the largest tropical mangrove forests of South America, with a particular focus on lesser studied compounds resulting from rural activities. Total concentrations ranged from 23.4 to 228.2 ng g-1 for polycyclic aromatic hydrocarbons (∑PAHs), 750.4 to 5912.5 ng g-1 for aliphatic hydrocarbons (∑AHs), 32.4 to 696.6 ng g-1 for pesticides (∑pesticides), 23.1 to 2109.7 ng g-1 for coprostanol and sterols (∑sterols), 139.3 to 580.2 ng g-1 for naturals hormones (∑natural hormones) and 334.1 to 823.4 ng g-1 for synthetics hormones (∑synthetic hormones). The PAHs and AHs used as traditional anthropogenic markers showed a mixture between natural and anthropogenic sources, related mainly to inputs from higher plants, phytoplankton and both, biomass and petroleum combustion. Rural activities linked to agricultural pest control are the predominant source of pesticides, although minor inputs from pesticides used in urban public health campaigns and household activities were also detected. Synthetic hormones levels are two to three orders of magnitude greater than natural hormones levels and no correlations were observed between the main sewage markers and synthetic hormone concentrations, rural activities such as animal husbandry, which use drugs in management, may be the predominant anthropogenic sources of these compounds in the region. Traditional markers failed to detect ecological risks in rural areas, where synthetic substances (e.g. pesticides and hormones) are widely used and introduced in the environment.
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Affiliation(s)
- Felipe R Santos
- Instituto Oceanográfico, Universidade de São Paulo, Praça do Oceanográfico, 191, 05508-120 São Paulo, SP, Brazil.
| | - Davi A Martins
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil
| | - Pollyana C V Morais
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil
| | - André H B Oliveira
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Allyne F Gama
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil
| | - Ronaldo F Nascimento
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Katherine F Choi-Lima
- Centro de Investigação em Ecotoxicologia Aquática e Poluição (NEPEA), São Paulo State University (UNESP Campus do Litoral Paulista), Praça Infante Dom Henrique, s/n., CEP 11330-900 São Vicente, SP, Brazil
| | - Lucas Buruaem Moreira
- Centro de Investigação em Ecotoxicologia Aquática e Poluição (NEPEA), São Paulo State University (UNESP Campus do Litoral Paulista), Praça Infante Dom Henrique, s/n., CEP 11330-900 São Vicente, SP, Brazil
| | - Denis M S Abessa
- Centro de Investigação em Ecotoxicologia Aquática e Poluição (NEPEA), São Paulo State University (UNESP Campus do Litoral Paulista), Praça Infante Dom Henrique, s/n., CEP 11330-900 São Vicente, SP, Brazil
| | - Robert K Nelson
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, 266 Woods Hole road, MA 02543, United States of America
| | - Christopher M Reddy
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, 266 Woods Hole road, MA 02543, United States of America
| | - Robert F Swarthout
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, 266 Woods Hole road, MA 02543, United States of America
| | - Rivelino M Cavalcante
- Instituto de Ciências do Mar, Universidade Federal do Ceará, Av. Abolição, 3207, 60165-081 Fortaleza, CE, Brazil.
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12
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Devane ML, Moriarty EM, Robson B, Lin S, Wood D, Webster-Brown J, Gilpin BJ. Relationships between chemical and microbial faecal source tracking markers in urban river water and sediments during and post-discharge of human sewage. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 651:1588-1604. [PMID: 30360285 DOI: 10.1016/j.scitotenv.2018.09.258] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 09/19/2018] [Accepted: 09/20/2018] [Indexed: 06/08/2023]
Abstract
This study explores the relationships between faecal source tracking (FST) markers (quantitative Polymerase Chain Reaction (qPCR) markers and steroids), microbial indicators, the faecal ageing ratio of atypical colonies/total coliforms (AC/TC) and potential human pathogens (Giardia, Cryptosporidium and Campylobacter). Faecal source PCR markers tested were GenBac3, HumM3, HumBac (HF183-Bac708R); Bifidobacterium adolescentis, wildfowl and canine-associated markers. Sediment and water samples from the Avon River were collected during and post-discharge of untreated human sewage inputs, following a series of earthquakes, which severely damaged the Christchurch sewerage system. Significant, positive Spearman Ranks (rs) correlations were observed between human-associated qPCR markers and steroid FST markers and Escherichia coli and F-specific RNA bacteriophage (rs 0.57 to 0.84, p < 0.001) in water samples. These human source indicative FST markers demonstrated that they were also effective predictors of potentially pathogenic protozoa in water (rs 0.43-0.74, p ≤ 0.002), but correlated less well with Campylobacter. Human-associated qPCR and steroid markers showed significant, substantial agreement between the two FST methods (Cohen's kappa, 0.78, p = 0.023), suggesting that water managers could be confident in the results using either method under these contamination conditions. Low levels of fluorescent whitening agents (FWA) (mean 0.06 μg/L, range 0.01-0.40 μg/L) were observed in water throughout the study, but steroids and FWA appeared to be retained in river sediments, months after continuous sewage discharges had ceased. No relationship was observed between chemical FST markers in sediments and the overlying water, and few correlations in sediment between chemical FST markers and target microorganisms. The low values observed for the faecal ageing ratio, AC/TC in water, were significantly, negatively correlated with increasing pathogen detection. This study provides support for the use of the AC/TC ratio, and qPCR and steroid FST markers as indicators of health risks associated with the discharge of raw human sewage into a freshwater system.
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Affiliation(s)
- Megan L Devane
- Institute of Environmental Science and Research Limited, Christchurch Science Centre, PO Box 29-181, Christchurch, New Zealand.
| | - Elaine M Moriarty
- Institute of Environmental Science and Research Limited, Christchurch Science Centre, PO Box 29-181, Christchurch, New Zealand
| | - Beth Robson
- Institute of Environmental Science and Research Limited, Christchurch Science Centre, PO Box 29-181, Christchurch, New Zealand
| | - Susan Lin
- Institute of Environmental Science and Research Limited, Christchurch Science Centre, PO Box 29-181, Christchurch, New Zealand
| | - David Wood
- Institute of Environmental Science and Research Limited, Christchurch Science Centre, PO Box 29-181, Christchurch, New Zealand
| | - Jenny Webster-Brown
- Waterways Centre for Freshwater Management, University of Canterbury, Private Bag 4800, Christchurch, New Zealand
| | - Brent J Gilpin
- Institute of Environmental Science and Research Limited, Christchurch Science Centre, PO Box 29-181, Christchurch, New Zealand
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13
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Frena M, Santos APS, Souza MRR, Carvalho SS, Madureira LAS, Alexandre MR. Sterol biomarkers and fecal coliforms in a tropical estuary: Seasonal distribution and sources. MARINE POLLUTION BULLETIN 2019; 139:111-116. [PMID: 30686407 DOI: 10.1016/j.marpolbul.2018.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 11/27/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
The Sergipe River estuary has been subjected to a range of anthropogenic activities including food, plastic, textile, ceramic and metallurgical production plants along with domestic sewage inputs, all of which are of environmental concern. In this study, the levels of fecal coliforms (FC) in surface water samples and sterols in superficial sediment samples collected from the Sergipe River estuary were determined. Based on the FC concentrations, 58% of the water samples were considered Water Potentially Unusable (WPU) according to the United States Environmental Protection Agency (USEPA). Concentrations of coprostanol ranged from 13 to 1072 ng g-1, indicating a significant input of sewage at some points in the estuary. Principal Component Analysis (PCA) showed that there is no clear correlation between the coprostanol and coliform data, which may be due to the high resistance to degradation of coprostanol in sediments and to recent inputs of sewage at the water sample collection points.
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Affiliation(s)
- Morgana Frena
- Universidade Federal de Sergipe, Departamento de Química, São Cristóvão, Sergipe 49100-000, Brazil; Universidade Federal de Santa Catarina, Departamento de Química, Campus Universitário Trindade, Florianópolis, Santa Catarina 88040-900, Brazil.
| | - Ana Paula Stein Santos
- Universidade Federal de Santa Catarina, Departamento de Química, Campus Universitário Trindade, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Michel R R Souza
- Universidade Federal de Sergipe, Departamento de Química, São Cristóvão, Sergipe 49100-000, Brazil
| | - Shalana Santos Carvalho
- Universidade Federal de Sergipe, Departamento de Química, São Cristóvão, Sergipe 49100-000, Brazil
| | - Luiz A S Madureira
- Universidade Federal de Santa Catarina, Departamento de Química, Campus Universitário Trindade, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Marcelo R Alexandre
- Universidade Federal de Sergipe, Departamento de Química, São Cristóvão, Sergipe 49100-000, Brazil
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14
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de Melo MG, da Silva BA, Costa GDS, da Silva Neto JCA, Soares PK, Val AL, Chaar JDS, Koolen HHF, Bataglion GA. Sewage contamination of Amazon streams crossing Manaus (Brazil) by sterol biomarkers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 244:818-826. [PMID: 30390455 DOI: 10.1016/j.envpol.2018.10.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 10/03/2018] [Accepted: 10/10/2018] [Indexed: 06/08/2023]
Abstract
Sewage pollution is a principal factor of decreasing water quality, although it has not been considered a real impact in Amazonia that is still considered a pristine environment around the world. Thus, this study aimed to assess the levels of sewage contamination in sediments from three streams crossing Manaus - a Brazilian city of 2,403,796 inhabitants in the heart of the Amazon rain forest. Cholesterol, cholestanol, brassicasterol, ergosterol, stigmasterol, β-sitosterol, campesterol, stigmastanol, coprostanol, and epicoprostanol levels were determined by liquid chromatography tandem mass spectrometry (LC-MS/MS). The fecal indicator, coprostanol, was found in high concentrations (509-12 830 ng g-1) and high relative proportions (21-54%) in all samples collected in the Mindu stream that crosses many heavily populated districts of the city, and in the Quarenta stream that crosses the Industrial District of Manaus. The sediments of the Tarumã-Açu stream also presented coprostanol; however, concentrations (<LOQ-142 ng g-1) and relative proportions (0-7%) were much lower in this stream. Sterol ratios indicate a severe contamination of the urban streams (Mindu and Quarenta) and a low to moderate contamination of the partially urban stream (Tarumã-Açu). This is the first study evaluating the levels of sewage contamination of Amazon streams using sterol biomarkers and the results obtained herein indicate the need of an immediate implementation of effective sewage treatment strategies. Additionally, these findings may be considered as baseline concentrations for future monitoring programs of that globally important environment.
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Affiliation(s)
- Moacir Guimarães de Melo
- Department of Chemistry, Institute of Exact Sciences, Federal University of Amazonas (UFAM), General Rodrigo Octavio Avenue, 6200 Coroado, Manaus, AM, Brazil
| | - Brina Aguiar da Silva
- Department of Chemistry, Institute of Exact Sciences, Federal University of Amazonas (UFAM), General Rodrigo Octavio Avenue, 6200 Coroado, Manaus, AM, Brazil
| | - Gilcllys de Souza Costa
- Department of Chemistry, Institute of Exact Sciences, Federal University of Amazonas (UFAM), General Rodrigo Octavio Avenue, 6200 Coroado, Manaus, AM, Brazil
| | - João Cândido André da Silva Neto
- Department of Geography, Institute of Philosophy, Human and Social Sciences, Federal University of Amazonas (UFAM), General Rodrigo Octavio Avenue, 6200 Coroado, Manaus, AM, Brazil
| | - Patrícia Kaori Soares
- Science and Technology School, Federal University of Rio Grande do Norte (UFRN), Passeio dos Girassóis Avenue, Natal, RN, Brazil
| | - Adalberto Luis Val
- Brazilian National Institute for Research of the Amazon (INPA), Laboratory of Ecophysiology and Molecular Evolution, André Araújo Avenue, 2936 Aleixo, Manaus, AM, Brazil
| | - Jamal da Silva Chaar
- Department of Chemistry, Institute of Exact Sciences, Federal University of Amazonas (UFAM), General Rodrigo Octavio Avenue, 6200 Coroado, Manaus, AM, Brazil
| | - Hector Henrique Ferreira Koolen
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), Carvalho Leal Avenue, 1777 Cachoeirinha, Manaus, AM, Brazil
| | - Giovana Anceski Bataglion
- Department of Chemistry, Institute of Exact Sciences, Federal University of Amazonas (UFAM), General Rodrigo Octavio Avenue, 6200 Coroado, Manaus, AM, Brazil.
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15
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He D, Zhang K, Tang J, Cui X, Sun Y. Using fecal sterols to assess dynamics of sewage input in sediments along a human-impacted river-estuary system in eastern China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 636:787-797. [PMID: 29727845 DOI: 10.1016/j.scitotenv.2018.04.314] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 06/08/2023]
Abstract
Sedimentary fecal sterols and other sterol biomarkers, combined with bulk total organic carbon (TOC) and its stable carbon isotope were applied to characterize the sewage contamination across a ca. 280 km transect from the Xiaoqing River to the Laizhou Bay, a typical river-estuary system subjected to extensive anthropogenic stress due to rapid regional urbanization and industrialization in eastern China. Two sampling events were performed in both spring and summer seasons in the Laizhou Bay adjacent to the Xiaoqing River in order to assess the potential seasonal variation. Fecal sterols such as coprostanol and epicoprostanol, which are typical indicators of anthropogenic sewage input, displayed high concentrations of up to 63.2 μg g-1 dry weight (dw) and 13.1 μg g-1 dw, respectively. Results suggested that most of the stations along the Xiaoqing River were severely contaminated by fecal inputs with a decreasing trend from the river to the estuary that was mainly explained by the increasing distance from the diffuse sewage sources and the gradual dilution by sea water. Although there was no significant difference in fecal sterol concentrations between spring and summer in the Laizhou Bay, suggestive of no significant difference in sewage abundance, significantly higher average epicoprostanol/coprostanol and lower coprostanol/epicoprostanol ratios were observed in spring than summer, indicative of different sewage sources (e.g., human vs. non-human). Seasonal discharge and land-runoff, air temperature related to microbial activity differences and different extend of animal manure irrigation during agricultural planting could be additional reasons and need further investigation. Nevertheless, fecal sterol concentrations, distributions and diagnostic ratios should all be taken into consideration to better understand sewage inputs and source dynamics in river-estuary ecosystems.
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Affiliation(s)
- Ding He
- Institute of Environment & Biogeochemistry (eBig), School of Earth Sciences, Zhejiang University, Hangzhou 310027, China.
| | - Kai Zhang
- Institute of Environment & Biogeochemistry (eBig), School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
| | - Jianhui Tang
- Yantai Institute of Coastal Zone Research, CAS, Yantai, Shandong 264003, China
| | - Xingqian Cui
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yongge Sun
- Institute of Environment & Biogeochemistry (eBig), School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
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16
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Almeida Â, Calisto V, Esteves VI, Schneider RJ, Soares AMVM, Figueira E, Freitas R. Toxicity associated to uptake and depuration of carbamazepine in the clam Scrobicularia plana under a chronic exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 580:1129-1145. [PMID: 28040214 DOI: 10.1016/j.scitotenv.2016.12.069] [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: 09/22/2016] [Revised: 12/11/2016] [Accepted: 12/12/2016] [Indexed: 06/06/2023]
Abstract
Carbamazepine (CBZ) is an antiepileptic drug commonly detected in aquatic systems, with toxic effects to inhabiting organisms. Limited information is known on stress response biomarkers associated to bioconcentration and depuration of CBZ in aquatic organisms. Moreover, few studies addressed if the response and recovery of organisms to a contaminant can change when they are collected in a contaminated site. This study intended to understand the bioconcentration and depuration of CBZ combined with its toxicological impact in Scrobicularia plana clams collected from two contrasting areas (MIRA, Mira channel, non-contaminated and LAR, Laranjo bay, anthropogenically impacted) from the Ria de Aveiro (Portugal). The clams were exposed for 14days to environmentally relevant CBZ concentrations (0.0, 4.0 and 8.0μg/L), followed by a 14day depuration period. CBZ concentrations in S. plana tissues were rapidly bioconcentrated during the exposure period. In the depuration period CBZ was eliminated, in some extent. The main toxic effects occurred at the highest concentration (8.0μg/L) after 14days of exposure in which the clams from LAR accumulated a higher CBZ concentration (LAR: ~10ng/g FW) than clams from MIRA (MIRA: ~7ng/g FW). LAR clams exhibited higher oxidative damage at this concentration, demonstrated by higher LPO levels over time (increase of ~1.4% relative to control) and, in comparison with MIRA clams (LAR: 17.7nmol/g FW; MIRA: 11.4nmol/g FW). After the depuration period, LAR clams recovered from the stress induced by CBZ. A decrease in LPO for LAR (decrease of ~40% in relation to the end of the exposure period) was accompanied by a decrease in CBZ tissue concentrations (decrease of ~61% relative to the end of the exposure period). MIRA clams were not oxidatively injured (low LPO levels remained unchanged after the depuration and CBZ decreased ~80% relative to the end of the exposure period).
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Affiliation(s)
- Ângela Almeida
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Vânia Calisto
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Valdemar I Esteves
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rudolf J Schneider
- BAM Federal Institute for Materials Research and Testing, Richard-Willstaetter-Str. 11, D-12489 Berlin, Germany
| | | | - Etelvina Figueira
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
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17
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Frena M, Santos APS, Santos E, Silva RP, Souza MRR, Madureira LAS, Alexandre MR. Distribution and sources of sterol biomarkers in sediments collected from a tropical estuary in Northeast Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:23291-23299. [PMID: 27696200 DOI: 10.1007/s11356-016-7744-4] [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: 07/08/2016] [Accepted: 09/18/2016] [Indexed: 06/06/2023]
Abstract
The Piauí-Real estuary is located along the southern coast of Sergipe state, Northeast Brazil. This estuary has great economic importance due to its physical, biological, and socioeconomic diversity, but it is subject to anthropogenic stress since the resident population in the town bordered by the estuarine system has grown in recent years. Thus, the possibility of sewage contamination originating from the approximately 450,000 inhabitants living within its drainage basin was investigated in this study. Sediment samples were collected from 15 sampling stations along the estuarine system and extracted, followed by gas chromatography-mass spectrometry (GC-MS) analysis. Six sterols were quantified, indicating natural and anthropogenic sources. Coprostanol concentrations higher than 100 ng g-1 were observed in 47 % of the stations analyzed, indicating sewage contamination, which was confirmed by the diagnostic ratios calculated. Based on the Pearson correlation test, a significant correlation between coprostanol concentrations and total organic carbon content (TOC) was observed, indicating that sterols record the history of sewage inputs in this area. These results indicate that control of the organic inputs into the estuarine system is required. Graphical abstract Sterol markers were determined and sources assessed in surface sediments from Piauí-Real estuarine system.
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Affiliation(s)
- Morgana Frena
- Departamento de Química, Universidade Federal de Sergipe, São Cristóvão, Sergipe, 49100-000, Brazil.
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, Santa Catarina, 88040-900, Brazil.
| | - Ana Paula Stein Santos
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Ewerton Santos
- Departamento de Química, Universidade Federal de Sergipe, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Rosianne P Silva
- Departamento de Química, Universidade Federal de Sergipe, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Michel R R Souza
- Departamento de Química, Universidade Federal de Sergipe, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Luiz A S Madureira
- Departamento de Química, Universidade Federal de Santa Catarina, Campus Universitário Trindade, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Marcelo R Alexandre
- Departamento de Química, Universidade Federal de Sergipe, São Cristóvão, Sergipe, 49100-000, Brazil
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