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Luis D Boada - One of the best experts on this subject based on the ideXlab platform.
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Intensive Livestock Farming as a major determinant of the exposure to anticoagulant rodenticides in raptors of the canary islands spain
Science of The Total Environment, 2021Co-Authors: Cristian Rialberriel, Andrea Acostadacal, Miguel Angel Cabrera Perez, Alejandro Suarezperez, Ayose Melian Melian, Manuel Zumbado, Luis Alberto Henriquez Hernandez, Norberto Ruizsuarez, Angel Rodriguez Hernandez, Luis D BoadaAbstract:Abstract The Canary Islands (Spain) is a biodiversity hotspot, with more than 4500 registered endemic species. However, it is subject to high anthropogenic pressure that threatens its wildlife in various ways. In the context of forensic toxicological surveys, the presence of anticoagulant rodenticides (AR) has been investigated in the liver of 831 animal carcasses with georeferenced data from 2011 to May 2020. The high concentrations of toxic pesticides in carcasses and in baits found close to the corpses indicated that all the reptiles and most of the mammals tested positive for AR were intentionally poisoned, although mainly by other substances. The frequency of detection of AR in non-raptor birds (n = 343) was only 4.1%, being the Canary raven the most frequently affected species (7/97, 7.2%). On the contrary, in raptors (n = 308) the detection frequency was almost 60%, with an average of more than 2 ARs per animal. The highest concentrations were found in the common kestrel. We present for the first-time results of AR contamination in two species of raptors that are very rare in Europe, Eleonora's falcon (n = 4) and Barbary falcon (n = 13). The temporal trend of positive cases remains stable, but since the entry into force of the restriction to the concentration of the active ingredient in baits (
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dataset on the concentrations of anticoagulant rodenticides in raptors from the canary islands with geographic information
Data in Brief, 2021Co-Authors: Cristian Rialberriel, Andrea Acostadacal, Miguel Angel Cabrera Perez, Alejandro Suarezperez, Ayose Melian Melian, Manuel Zumbado, Luis Alberto Henriquez Hernandez, Norberto Ruizsuarez, Angel Rodriguez Hernandez, Luis D BoadaAbstract:Abstract The dataset presented in this article supports “Intensive Livestock Farming as a major determinant of the exposure to anticoagulant rodenticides in raptors of the Canary Islands (Spain)” (Rial-Berriel et al., 2020). A Geographic Information System (GIS) analysis on the influence of the influence of Livestock activity on exposure to anticoagulant rodenticides in raptors in the Canary Islands was performed. This dataset provides geographic information on the localization of each raptor (either positive or negative for anticoagulant rodenticides, n = 308), as well as the concentrations of each compound found in their livers. In addition, we present complementary analyses to those included in the main article, such as the detailed analysis of the Farming activity influence on anticoagulant rodenticide exposure of raptors, by island and by raptor species.
Rúbies Prat Antoni - One of the best experts on this subject based on the ideXlab platform.
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Noves propostes per a l’anàlisi de medicaments d’ús veterinari i de toxines marines en aliments destinats al consum humà
'Edicions de la Universitat de Barcelona', 2017Co-Authors: Rúbies Prat AntoniAbstract:El sector de la producció ramadera i de l’aqüicultura són pilars fonamentals de la indústria alimentària, que té plantejats grans reptes, com el de poder posar a l’abast de la població quantitat suficient d’aliments i que aquests siguin saludables als consumidors. La indústria alimentària ha anat optimitzant els seus mecanismes de producció d’aliments, i a dia d’avui són molt esteses les pràctiques de producció intensiva, que es caracteritzen per una productivitat molt elevada amb un cost econòmic relativament baix. Aquests tipus d’enfocament utilitza medicaments veterinaris per tractar els animals malalts, però també amb finalitats profilàctiques, per minimitzar el risc de contagi. L’ús de medicaments pot comportar la presència de residus dels fàrmacs en els productes alimentaris destinats a consum humà, i el risc associat és un tema que preocupa la societat. Amb l’objectiu d’oferir a la població l’accés a aliments segurs i saludables, s’han establert límits màxims de residu (LMR) per a medicaments d’us veterinari o bé prohibició per d’altres, atenent a la seva toxicitat. No és aquest l’únic àmbit on es regula la presència als aliments de compostos que poden suposar un risc per als consumidors; podem citar els pesticides, els contaminants ambientals, les toxines d’origen natural, etc. El repte pels laboratoris de control és el de poder disposar de mètodes d’anàlisi prou sensibles i selectius com per poder donar compliment a la legislació. A la vegada aquests mètodes convé que siguin suficientment transversals com per poder ser aplicats a diferents matrius alimentàries, les quals poden ser de naturalesa molt diversa pel que fa a la seva composició. Els mètodes han de ser d’elevada fiabilitat, però també ràpids i senzills. En aquesta tesi, s’han posat a punt mètodes per l’anàlisi de residus de 3 famílies de medicaments veterinaris (avermectines, nitroimidazols i antiinflamatoris no estereoideus); moltes de les substàncies considerades tenen establerts LMR, però algunes són prohibides. Per altra banda, s’ha posat a punt un mètode d’anàlisi de toxines marines lipofíliques en mol·luscs bivalves. Les toxines estudiades tenen nivells màxims admissibles legislats.Livestock plays an important role in food industry. In the last decades, the mechanisms for food production have been optimized, based mainly in an Intensive Livestock Farming and, as a consequence an increasing use of veterinary drugs to raise the animals. As a result of the use of veterinary drugs in Livestock raising, residues can be present in foodstuff for human consumption. Nowadays, this issue is currently becoming more and more important. Also some natural processes occurring in oceans and seas (red tides) may produce natural toxins that contaminate foodstuff, such as the bivalves. Food safety laboratories need to control the presence of such residues in food of animal origin. Therefore, reliable, easy and fast analytical methods should be used in order to control an increasing amount of samples. In this thesis, simple analytical methods for the analysis of avermectins, nitroimidazoles, non- steroidal anti-inflammatory drugs (NSAIDs) and lipophilic marine biotoxins (MBTXs) have been set up and validated. These methods are base in the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) strategy, a method that was first published for pesticide residue analysis and nowadays becoming widely used. Some of the compounds have a published MRL (Maximum Residue Limit) in some matrices of animal origin, but because of their mutagenic and carcinogenic properties, some nitroimidazoles are included in the list of prohibited substances of Regulation (EU) No 37/2010, namely dimetridazole, metronidazole and ronidazole. The instrumentation involved in the present analytical methods is UHPLC-MS/MS, (triple quadrupole, QqQ) using an electrospray ionization (ESI) interface in Multiple Reaction Monitoring (MRM) mode. The use of high resolution mass spectrometry (HRMS), with Q-Orbitrap mass analyzer, has been tested as well. The use of HRMS has permitted to resolve coeluting isobaric interferences which did not permit confirmation of analytical results by QqQ. Also due to its excellent selectivity, very low regulated limits could be achieved. This is the case of diclofenac, a NSAIDs with a very low MRL in milk (0.1 µg·kg-1). Different working modes of the Q-Orbitrap mass analyzer have been tested, among them, t-SIM-ddpp (target-sim-data-dependent) and t-MS/MS (target- MS/MS). Validation of the methods included in this thesis has been performed following European legislation rules included in the 657/2002/CE Decision with excellent results. CCα (decision limit) and CCβ (detection capability) have been calculated as well. Limits of quantification (LQ) of the analytical methods for veterinary drugs residues range between 0.5- 2.5 µg·kg-1. For MBTX, LQ has been set up at 25 µg·kg-1. The validated matrices are muscle, milk and mussel, but all methods have been tested in alternatives matrices with successful results. Avermectin analysis has been tested in liver and milk; nitroimidazole analysis in kidney and liver, NSAIDs analysis in kidney and MBTXs analysis in canned and processed bivalves. The methods have been implemented in the Laboratori de l’Agència de Salut Pública de Barcelona for control analysis and are used for routine analysis
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Noves propostes per a l’anàlisi de medicaments d’ús veterinari i de toxines marines en aliments destinats al consum humà
'Edicions de la Universitat de Barcelona', 2017Co-Authors: Rúbies Prat AntoniAbstract:[cat] El sector de la producció ramadera i de l’aqüicultura són pilars fonamentals de la indústria alimentària, que té plantejats grans reptes, com el de poder posar a l’abast de la població quantitat suficient d’aliments i que aquests siguin saludables als consumidors. La indústria alimentària ha anat optimitzant els seus mecanismes de producció d’aliments, i a dia d’avui són molt esteses les pràctiques de producció intensiva, que es caracteritzen per una productivitat molt elevada amb un cost econòmic relativament baix. Aquests tipus d’enfocament utilitza medicaments veterinaris per tractar els animals malalts, però també amb finalitats profilàctiques, per minimitzar el risc de contagi. L’ús de medicaments pot comportar la presència de residus dels fàrmacs en els productes alimentaris destinats a consum humà, i el risc associat és un tema que preocupa la societat. Amb l’objectiu d’oferir a la població l’accés a aliments segurs i saludables, s’han establert límits màxims de residu (LMR) per a medicaments d’us veterinari o bé prohibició per d’altres, atenent a la seva toxicitat. No és aquest l’únic àmbit on es regula la presència als aliments de compostos que poden suposar un risc per als consumidors; podem citar els pesticides, els contaminants ambientals, les toxines d’origen natural, etc. El repte pels laboratoris de control és el de poder disposar de mètodes d’anàlisi prou sensibles i selectius com per poder donar compliment a la legislació. A la vegada aquests mètodes convé que siguin suficientment transversals com per poder ser aplicats a diferents matrius alimentàries, les quals poden ser de naturalesa molt diversa pel que fa a la seva composició. Els mètodes han de ser d’elevada fiabilitat, però també ràpids i senzills. En aquesta tesi, s’han posat a punt mètodes per l’anàlisi de residus de 3 famílies de medicaments veterinaris (avermectines, nitroimidazols i antiinflamatoris no estereoideus); moltes de les substàncies considerades tenen establerts LMR, però algunes són prohibides. Per altra banda, s’ha posat a punt un mètode d’anàlisi de toxines marines lipofíliques en mol·luscs bivalves. Les toxines estudiades tenen nivells màxims admissibles legislats.[eng] Livestock plays an important role in food industry. In the last decades, the mechanisms for food production have been optimized, based mainly in an Intensive Livestock Farming and, as a consequence an increasing use of veterinary drugs to raise the animals. As a result of the use of veterinary drugs in Livestock raising, residues can be present in foodstuff for human consumption. Nowadays, this issue is currently becoming more and more important. Also some natural processes occurring in oceans and seas (red tides) may produce natural toxins that contaminate foodstuff, such as the bivalves. Food safety laboratories need to control the presence of such residues in food of animal origin. Therefore, reliable, easy and fast analytical methods should be used in order to control an increasing amount of samples. In this thesis, simple analytical methods for the analysis of avermectins, nitroimidazoles, non- steroidal anti-inflammatory drugs (NSAIDs) and lipophilic marine biotoxins (MBTXs) have been set up and validated. These methods are base in the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) strategy, a method that was first published for pesticide residue analysis and nowadays becoming widely used. Some of the compounds have a published MRL (Maximum Residue Limit) in some matrices of animal origin, but because of their mutagenic and carcinogenic properties, some nitroimidazoles are included in the list of prohibited substances of Regulation (EU) No 37/2010, namely dimetridazole, metronidazole and ronidazole. The instrumentation involved in the present analytical methods is UHPLC-MS/MS, (triple quadrupole, QqQ) using an electrospray ionization (ESI) interface in Multiple Reaction Monitoring (MRM) mode. The use of high resolution mass spectrometry (HRMS), with Q-Orbitrap mass analyzer, has been tested as well. The use of HRMS has permitted to resolve coeluting isobaric interferences which did not permit confirmation of analytical results by QqQ. Also due to its excellent selectivity, very low regulated limits could be achieved. This is the case of diclofenac, a NSAIDs with a very low MRL in milk (0.1 µg·kg-1). Different working modes of the Q-Orbitrap mass analyzer have been tested, among them, t-SIM-ddpp (target-sim-data-dependent) and t-MS/MS (target- MS/MS). Validation of the methods included in this thesis has been performed following European legislation rules included in the 657/2002/CE Decision with excellent results. CCα (decision limit) and CCβ (detection capability) have been calculated as well. Limits of quantification (LQ) of the analytical methods for veterinary drugs residues range between 0.5- 2.5 µg·kg-1. For MBTX, LQ has been set up at 25 µg·kg-1. The validated matrices are muscle, milk and mussel, but all methods have been tested in alternatives matrices with successful results. Avermectin analysis has been tested in liver and milk; nitroimidazole analysis in kidney and liver, NSAIDs analysis in kidney and MBTXs analysis in canned and processed bivalves. The methods have been implemented in the Laboratori de l’Agència de Salut Pública de Barcelona for control analysis and are used for routine analysi
Thomas D Bucheli - One of the best experts on this subject based on the ideXlab platform.
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natural estrogens in surface waters of a catchment with Intensive Livestock Farming in switzerland
Environmental Science: Processes & Impacts, 2020Co-Authors: Daniela Rechsteiner, Felix E Wettstein, Benjamin P Warren, Etienne L M Vermeirssen, Eszter Simon, Manuel K Schneider, Juliane Hollender, Thomas D BucheliAbstract:Natural estrogens such as 17α-estradiol (E2α), 17β-estradiol (E2β), estrone (E1), and estriol (E3), released to surface waters from both urban and agricultural sources, are endocrine disrupting for fish. Here, we assess the prevalence of Livestock Farming derived natural estrogens in tributaries and ponds in the agriculturally dominated catchment of Lake Baldegg, Switzerland. Passive samplers were deployed in the main tributary and daily time-proportional water samples were collected in five tributaries for 30 days at the beginning of the vegetation period. Furthermore, we took grab samples of 12 ponds in the catchment. Aqueous samples were liquid–liquid extracted, derivatized, and analysed with LC-MS/MS and stream water samples additionally with ERα-CALUX, a bioassay for assessing total estrogenic activity. Natural estrogens were regularly detected, with mean concentrations ranging from below the limit of detection to 0.55 ng L−1 for E2β and E1, respectively, and passive sampling and bioassay results largely confirmed these findings. Monte Carlo simulated mean natural estrogen concentrations underestimated measured ones by a factor of three to 11. An agricultural area's hydrological contribution and connectivity to surface waters seemed to be more important for the development of estrogen concentrations in streams than Livestock densities in a catchment or the actual loads of slurry applied. Pond water occasionally contained natural estrogens in concentrations up to 8.6 ng L−1 for E2α. The environmental quality standards of the European Union (0.4 ng L−1 for E2β and 3.6 ng L−1 for E1) were never exceeded for longer than a day in tributaries, but E1 reached critical concentrations for aquatic organisms in ponds.
Cristian Rialberriel - One of the best experts on this subject based on the ideXlab platform.
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Intensive Livestock Farming as a major determinant of the exposure to anticoagulant rodenticides in raptors of the canary islands spain
Science of The Total Environment, 2021Co-Authors: Cristian Rialberriel, Andrea Acostadacal, Miguel Angel Cabrera Perez, Alejandro Suarezperez, Ayose Melian Melian, Manuel Zumbado, Luis Alberto Henriquez Hernandez, Norberto Ruizsuarez, Angel Rodriguez Hernandez, Luis D BoadaAbstract:Abstract The Canary Islands (Spain) is a biodiversity hotspot, with more than 4500 registered endemic species. However, it is subject to high anthropogenic pressure that threatens its wildlife in various ways. In the context of forensic toxicological surveys, the presence of anticoagulant rodenticides (AR) has been investigated in the liver of 831 animal carcasses with georeferenced data from 2011 to May 2020. The high concentrations of toxic pesticides in carcasses and in baits found close to the corpses indicated that all the reptiles and most of the mammals tested positive for AR were intentionally poisoned, although mainly by other substances. The frequency of detection of AR in non-raptor birds (n = 343) was only 4.1%, being the Canary raven the most frequently affected species (7/97, 7.2%). On the contrary, in raptors (n = 308) the detection frequency was almost 60%, with an average of more than 2 ARs per animal. The highest concentrations were found in the common kestrel. We present for the first-time results of AR contamination in two species of raptors that are very rare in Europe, Eleonora's falcon (n = 4) and Barbary falcon (n = 13). The temporal trend of positive cases remains stable, but since the entry into force of the restriction to the concentration of the active ingredient in baits (
-
dataset on the concentrations of anticoagulant rodenticides in raptors from the canary islands with geographic information
Data in Brief, 2021Co-Authors: Cristian Rialberriel, Andrea Acostadacal, Miguel Angel Cabrera Perez, Alejandro Suarezperez, Ayose Melian Melian, Manuel Zumbado, Luis Alberto Henriquez Hernandez, Norberto Ruizsuarez, Angel Rodriguez Hernandez, Luis D BoadaAbstract:Abstract The dataset presented in this article supports “Intensive Livestock Farming as a major determinant of the exposure to anticoagulant rodenticides in raptors of the Canary Islands (Spain)” (Rial-Berriel et al., 2020). A Geographic Information System (GIS) analysis on the influence of the influence of Livestock activity on exposure to anticoagulant rodenticides in raptors in the Canary Islands was performed. This dataset provides geographic information on the localization of each raptor (either positive or negative for anticoagulant rodenticides, n = 308), as well as the concentrations of each compound found in their livers. In addition, we present complementary analyses to those included in the main article, such as the detailed analysis of the Farming activity influence on anticoagulant rodenticide exposure of raptors, by island and by raptor species.
Juliane Hollender - One of the best experts on this subject based on the ideXlab platform.
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natural estrogens in surface waters of a catchment with Intensive Livestock Farming in switzerland
Environmental Science: Processes & Impacts, 2020Co-Authors: Daniela Rechsteiner, Felix E Wettstein, Benjamin P Warren, Etienne L M Vermeirssen, Eszter Simon, Manuel K Schneider, Juliane Hollender, Thomas D BucheliAbstract:Natural estrogens such as 17α-estradiol (E2α), 17β-estradiol (E2β), estrone (E1), and estriol (E3), released to surface waters from both urban and agricultural sources, are endocrine disrupting for fish. Here, we assess the prevalence of Livestock Farming derived natural estrogens in tributaries and ponds in the agriculturally dominated catchment of Lake Baldegg, Switzerland. Passive samplers were deployed in the main tributary and daily time-proportional water samples were collected in five tributaries for 30 days at the beginning of the vegetation period. Furthermore, we took grab samples of 12 ponds in the catchment. Aqueous samples were liquid–liquid extracted, derivatized, and analysed with LC-MS/MS and stream water samples additionally with ERα-CALUX, a bioassay for assessing total estrogenic activity. Natural estrogens were regularly detected, with mean concentrations ranging from below the limit of detection to 0.55 ng L−1 for E2β and E1, respectively, and passive sampling and bioassay results largely confirmed these findings. Monte Carlo simulated mean natural estrogen concentrations underestimated measured ones by a factor of three to 11. An agricultural area's hydrological contribution and connectivity to surface waters seemed to be more important for the development of estrogen concentrations in streams than Livestock densities in a catchment or the actual loads of slurry applied. Pond water occasionally contained natural estrogens in concentrations up to 8.6 ng L−1 for E2α. The environmental quality standards of the European Union (0.4 ng L−1 for E2β and 3.6 ng L−1 for E1) were never exceeded for longer than a day in tributaries, but E1 reached critical concentrations for aquatic organisms in ponds.