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  1. Artikel ; Online: Ecotoxicological perspectives of microplastic pollution in amphibians.

    Burgos-Aceves, Mario A / Faggio, Caterina / Betancourt-Lozano, Miguel / González-Mille, Donají J / Ilizaliturri-Hernández, César A

    Journal of toxicology and environmental health. Part B, Critical reviews

    2022  Band 25, Heft 8, Seite(n) 405–421

    Abstract: Microplastics (MPs) are contaminants widely distributed in the environment and biota. Previously, most studies focused on identifying and characterizing microplastics in the marine environment, while their impact on freshwater ecosystems remains to be ... ...

    Abstract Microplastics (MPs) are contaminants widely distributed in the environment and biota. Previously, most studies focused on identifying and characterizing microplastics in the marine environment, while their impact on freshwater ecosystems remains to be determined. This review summarizes recent findings regarding MPs physiological, immunological, and genetic effects on amphibians based upon the biological relevance of this species as indicators of freshwater pollution. Data demonstrated that MPs contamination may potentially alter various physiological processes in aquatic animals, mainly in the embryonic stages. It is worthwhile noting that adverse effects might be enhanced in synergy with other pollutants. However, amphibians might counteract the effect of MPs and other pollutants through microbiota present both in the intestine and on the skin. In addition, amphibian microbial composition might also be altered by MPs themselves in a manner that leads to unpredicted health consequences in amphibians.
    Mesh-Begriff(e) Animals ; Microplastics/toxicity ; Plastics ; Ecosystem ; Environmental Monitoring ; Water Pollutants, Chemical/toxicity ; Water Pollutants, Chemical/analysis ; Amphibians ; Environmental Pollutants
    Chemische Substanzen Microplastics ; Plastics ; Water Pollutants, Chemical ; Environmental Pollutants
    Sprache Englisch
    Erscheinungsdatum 2022-11-09
    Erscheinungsland England
    Dokumenttyp Review ; Journal Article
    ZDB-ID 1415246-0
    ISSN 1521-6950 ; 1093-7404
    ISSN (online) 1521-6950
    ISSN 1093-7404
    DOI 10.1080/10937404.2022.2140372
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  2. Artikel ; Online: Functioning of semi-arid soils under long-term mining activity with trace elements at high concentrations

    Martínez-Toledo, Ángeles / González-Mille, Donaji J. / Briones-Gallardo, Roberto / Carrizalez-Yañez, Leticia / Felipe Martínez-Montoya, Juan / de Jesús Mejía-Saavedra, José / Ilizaliturri-Hernández, César A.

    Catena. 2023 Mar., v. 222 p.106851-

    2023  

    Abstract: Trace elements (TEs), including certain heavy metals, are essential for soil health and fertility, and their concentration in the soil depends on environmental factors and anthropogenic activities. In San Luis Potosí, Mexico, mining has been practiced ... ...

    Abstract Trace elements (TEs), including certain heavy metals, are essential for soil health and fertility, and their concentration in the soil depends on environmental factors and anthropogenic activities. In San Luis Potosí, Mexico, mining has been practiced for more than 400 years, causing severe heavy metal pollution problems in different mining districts. The objective of this study was to evaluate the effects of TEs at high concentrations and soil physicochemical properties on the biological and biochemical functioning of soils from contaminated sites. Samples were taken from sites with and without a history of mining activity, and the following parameters were determined: organic matter (OM), pH, electrical conductivity (EC), texture, nitrogen (N) and phosphorus (P) levels, and TE concentration, as well as dehydrogenase (DES), protease (PRO), β-galactosidase (GAL), and phosphatase (PHO) activities and CO₂ production (CO₂-PR). According to the redundancy analysis of the data from the set of sites, the influence of the main parameters on the biochemical and respiratory functioning of the soils resulted in the following pattern: N > EC > OM, and Mo > B > As > Fe > Cr > V > Ni > Li > Mn > Al. DES and CO₂-PR were the most inhibited parameters, and the lowest inhibition was observed in PRO. The mixture of TEs at high concentrations acts synergistically with the physicochemical properties of the soil and differentially on the type of enzymatic activity and CO₂-PR by microorganisms, thus altering the functioning and buffering capacity of the soil compared to uncontaminated sites.
    Schlagwörter carbon dioxide ; catenas ; electrical conductivity ; enzyme activity ; heavy metals ; nitrogen ; organic matter ; oxidoreductases ; pH ; phosphorus ; pollution ; proteinases ; soil ; soil quality ; texture ; Mexico ; Enzymatic activities ; MicroRespTM ; Physicochemical properties ; Redundancy analysis ; CSQG ; CED ; CHA ; CO2-PR ; CSP ; EC ; DES ; GAL ; HM ; INT ; INTF ; OM ; PHO ; p-NP ; PRO ; PS ; RDA ; RS ; SQuiRTs ; TEs ; VDP
    Sprache Englisch
    Erscheinungsverlauf 2023-03
    Erscheinungsort Elsevier B.V.
    Dokumenttyp Artikel ; Online
    ZDB-ID 519608-5
    ISSN 1872-6887 ; 0008-7769 ; 0341-8162
    ISSN (online) 1872-6887 ; 0008-7769
    ISSN 0341-8162
    DOI 10.1016/j.catena.2022.106851
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  3. Artikel ; Online: Levels of persistent organic pollutants in cane toads (Rhinella marina) differ among sites with varying industrial and agricultural activities.

    Cruz-Santiago, Omar / Flores-Ramírez, Rogelio / Ilizaliturri-Hernández, César A / Méndez-Rodríguez, Karen B / Cilia-López, Virginia G / Espinosa-Reyes, Guillermo / González-Mille, Donaji J

    Environmental toxicology and pharmacology

    2023  Band 103, Seite(n) 104280

    Abstract: In this study, we captured cane toads (Rhinella marina) in four sites located in different regions affected by anthropogenic activities in Mexico. Subsequently we analyzed liver tissue for the presence of organochlorine pesticides (OCs) and ... ...

    Abstract In this study, we captured cane toads (Rhinella marina) in four sites located in different regions affected by anthropogenic activities in Mexico. Subsequently we analyzed liver tissue for the presence of organochlorine pesticides (OCs) and polychlorinated biphenyls (PCBs) The levels of these POPs in the toads' livers ranged from 863.2 to 3109.6 ng/g of lipid weight across all sites. A multivariate statistical analysis highlighted two sites with the highest POPs levels, with the most polluted site displaying a high level of PCBs, suggesting influence of industrial activities. The second most polluted site displayed significant amounts of OCs, linking this location to agricultural activity. Additionally, we found pesticide metabolites and isomers that allowed us to distinguish past and recent exposure events. Our observations indicate that R. marina is suitable bioindicator of sites impacted by anthropogenic activities.
    Sprache Englisch
    Erscheinungsdatum 2023-09-22
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 1318302-3
    ISSN 1872-7077 ; 1382-6689
    ISSN (online) 1872-7077
    ISSN 1382-6689
    DOI 10.1016/j.etap.2023.104280
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  4. Artikel: Giant Toads (Rhinella marina) From the Industrial Zones of Low Basin of the Coatzacoalcos River (Veracruz, MX) Presents Genotoxicity in Erythrocytes

    Cruz-Santiago, Omar / Castillo, Claudia G. / Espinosa-Reyes, Guillermo / Pérez-Maldonado, Iván N. / González-Mille, Donaji J. / Cuevas-Díaz, María del Carmen / Ilizaliturri-Hernández, César A.

    Bulletin of environmental contamination and toxicology. 2022 Jan., v. 108, no. 1

    2022  

    Abstract: The lower basin of Coatzacoalcos River is one of the most polluted regions of the southern Gulf of Mexico. Organochlorine compounds, polybrominated diphenyl ethers, polycyclic aromatic hydrocarbons, and heavy metals have been registered in this region. ... ...

    Abstract The lower basin of Coatzacoalcos River is one of the most polluted regions of the southern Gulf of Mexico. Organochlorine compounds, polybrominated diphenyl ethers, polycyclic aromatic hydrocarbons, and heavy metals have been registered in this region. In the present study, genotoxicity was evaluated in the blood of giant toads (Rhinella marina) from Coatzacoalcos’ rural and industrial zones, and compared with laboratory toads. Determination of the frequency of micronucleus and erythrocyte nuclear abnormalities by the light microscope and cell cycle and apoptosis by flow cytometry were used as biomarkers of genotoxicity. We found more variability in micronucleus and more nuclear buds in toads from industrial zones. Also, cell cycle alterations and an increase of apoptosis in erythrocytes were found in toads from rural and industrial zones. Multivariate statistics show that the toads from the industrial zone were more affected than toads from laboratory and rural zones.
    Schlagwörter Rhinella marina ; apoptosis ; basins ; biomarkers ; biphenyl ; cell cycle ; chlorinated hydrocarbons ; erythrocytes ; flow cytometry ; genotoxicity ; light microscopes ; multivariate analysis ; pollution ; rivers ; toxicology ; Gulf of Mexico
    Sprache Englisch
    Erscheinungsverlauf 2022-01
    Umfang p. 64-70.
    Erscheinungsort Springer US
    Dokumenttyp Artikel
    ZDB-ID 6895-0
    ISSN 1432-0800 ; 0007-4861
    ISSN (online) 1432-0800
    ISSN 0007-4861
    DOI 10.1007/s00128-021-03162-2
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  5. Artikel ; Online: Patterns in utilization of carbon sources in soil microbial communities contaminated with mine solid wastes from San Luis Potosi, Mexico.

    Martínez-Toledo, Ángeles / González-Mille, Donaji J / García-Arreola, Maria E / Cruz-Santiago, Omar / Trejo-Acevedo, Antonio / Ilizaliturri-Hernández, César A

    Ecotoxicology and environmental safety

    2020  Band 208, Seite(n) 111493

    Abstract: In San Luis Potosí, Mexico, the exploitation of minerals has historically been carried out as an activity that has left in its path environmental liabilities, with high concentrations of heavy metals. These metals have undergone weathering by rain and ... ...

    Abstract In San Luis Potosí, Mexico, the exploitation of minerals has historically been carried out as an activity that has left in its path environmental liabilities, with high concentrations of heavy metals. These metals have undergone weathering by rain and wind and have moved closer to inhabited locations as is the case of Cerro de San Pedro (CSP) and Villa de la Paz (VDP). The objective of this study is to show the biological alteration of soils due to the presence of heavy metals and metalloids like Cadmium (Cd), Copper (Cu), Lead (Pb) and Arsenic (As) and to find the relationship between contamination and risk indexes. Soil samples were obtained from sites with historical records of mining activity and their surroundings. Several analyses were performed, such as pH levels, organic matter, electrical conductivity, clays, heavy metals and As. Moreover, Community Level Physiological profiling (CLPP) were conducted. The obtained evidence showed high levels of contamination by As and heavy metals in both sites (CSP: 6485.1 mg/Kg of Pb and pH of 4.4; VDP: 7188.2 mg/Kg of As and pH of 7.8). According to the Metal Pollution Index (MPI), 607.0 in CSP and 1050.5 in VDP, presented a high environmental risk, apart from, risk to human health (SQGQI) 35.8 in CSP and 131.5 in VDP. At the same time, CLPPs showed that microbiological communities were selective in taking up substrate groups, in the following order: Carbohydrates > Polymers > Carboxylic acids > Amino acids > Amines/Amides. However, a positive correlation in CSP was only found between both indexes and Amines/Amides (r = 0.46, p < 0.05), and in VDP the D-Galactonic acid-γ-Lactone with the MPI (r = 0.49, p < 0.05), and with the SQGQI (r = 0.45, p < 0.05). Although this behavior was not homogeneous, it was possible to find negative correlations between both indexes and the AWCD with other substrates, influenced by the physicochemical characteristics presented in each studied site. Consequently, according to our findings, a combined effect between the physicochemical characteristics, As, and heavy metals took place, on the metabolic activity, causing alterations to soil functions.
    Mesh-Begriff(e) Bacteria/metabolism ; Carbon/metabolism ; Metalloids/metabolism ; Metals, Heavy/metabolism ; Mexico ; Mining ; Soil Microbiology ; Soil Pollutants/metabolism
    Chemische Substanzen Metalloids ; Metals, Heavy ; Soil Pollutants ; Carbon (7440-44-0)
    Sprache Englisch
    Erscheinungsdatum 2020-10-26
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2020.111493
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  6. Artikel ; Online: Giant Toads (Rhinella marina) From the Industrial Zones of Low Basin of the Coatzacoalcos River (Veracruz, MX) Presents Genotoxicity in Erythrocytes.

    Cruz-Santiago, Omar / Castillo, Claudia G / Espinosa-Reyes, Guillermo / Pérez-Maldonado, Iván N / González-Mille, Donaji J / Cuevas-Díaz, María Del Carmen / Ilizaliturri-Hernández, César A

    Bulletin of environmental contamination and toxicology

    2021  Band 108, Heft 1, Seite(n) 64–70

    Abstract: The lower basin of Coatzacoalcos River is one of the most polluted regions of the southern Gulf of Mexico. Organochlorine compounds, polybrominated diphenyl ethers, polycyclic aromatic hydrocarbons, and heavy metals have been registered in this region. ... ...

    Abstract The lower basin of Coatzacoalcos River is one of the most polluted regions of the southern Gulf of Mexico. Organochlorine compounds, polybrominated diphenyl ethers, polycyclic aromatic hydrocarbons, and heavy metals have been registered in this region. In the present study, genotoxicity was evaluated in the blood of giant toads (Rhinella marina) from Coatzacoalcos' rural and industrial zones, and compared with laboratory toads. Determination of the frequency of micronucleus and erythrocyte nuclear abnormalities by the light microscope and cell cycle and apoptosis by flow cytometry were used as biomarkers of genotoxicity. We found more variability in micronucleus and more nuclear buds in toads from industrial zones. Also, cell cycle alterations and an increase of apoptosis in erythrocytes were found in toads from rural and industrial zones. Multivariate statistics show that the toads from the industrial zone were more affected than toads from laboratory and rural zones.
    Mesh-Begriff(e) Animals ; Bufo marinus ; Environmental Monitoring ; Erythrocytes ; Polycyclic Aromatic Hydrocarbons/analysis ; Rivers
    Chemische Substanzen Polycyclic Aromatic Hydrocarbons
    Sprache Englisch
    Erscheinungsdatum 2021-03-15
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 6895-0
    ISSN 1432-0800 ; 0007-4861
    ISSN (online) 1432-0800
    ISSN 0007-4861
    DOI 10.1007/s00128-021-03162-2
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  7. Artikel ; Online: Integrated probabilistic risk assessment in sites contaminated with arsenic and lead by long-term mining liabilities in San Luis Potosi, Mexico.

    Fernández-Macías, Juan C / González-Mille, Donaji J / García-Arreola, María E / Cruz-Santiago, Omar / Rivero-Pérez, Norma E / Pérez-Vázquez, Francisco / Ilizaliturri-Hernández, César A

    Ecotoxicology and environmental safety

    2020  Band 197, Seite(n) 110568

    Abstract: Mining environmental liabilities (MEL) in San Luis Potosi are the result of more than 450 years of mining activity, which has contaminated the soil mainly with arsenic (As) and lead (Pb) in several areas. Risk assessments are used to estimate the ... ...

    Abstract Mining environmental liabilities (MEL) in San Luis Potosi are the result of more than 450 years of mining activity, which has contaminated the soil mainly with arsenic (As) and lead (Pb) in several areas. Risk assessments are used to estimate the possibility of the occurrence of adverse effects on human health or on ecological receptors; and the most accessible way of performing them is through probabilistic estimates such as the Latin Hypercube Sampling (LHS) model. Therefore, the aim of this study was to carry out an Integrated Probabilistic Environmental Risk Assessment (IPERA) for the estimation of health risks in infants and rodents. The mean concentrations of As and Pb in soil were significantly higher (p<0.05) in all contaminated sites than in their respective reference sites. Villa de la Paz was the site with the highest mean concentration of As (1374 mg/kg), while Charcas was the one with the highest level of Pb (12,929 mg/kg). The Hazard Quotient (HQ) was calculated and Villa de la Paz had the highest values of As in both rodents (11.994) and children (39.32), and Charcas showed the highest values of Pb in both (24.971 and 31.668 for rodents and children respectively). The cumulative hazard Index (HI) reveals there is a very significant health risk due to As and Pb exposure for both rodents and children in contaminated areas of these mining communities.
    Mesh-Begriff(e) Animals ; Arsenic/analysis ; Child ; Environmental Exposure/adverse effects ; Environmental Exposure/analysis ; Humans ; Lead/analysis ; Mexico ; Mining ; Risk Assessment ; Rodentia ; Soil Pollutants/analysis
    Chemische Substanzen Soil Pollutants ; Lead (2P299V784P) ; Arsenic (N712M78A8G)
    Sprache Englisch
    Erscheinungsdatum 2020-04-10
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2020.110568
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  8. Artikel ; Online: DNA damage in different wildlife species exposed to persistent organic pollutants (POPs) from the delta of the Coatzacoalcos river, Mexico.

    González-Mille, Donaji J / Ilizaliturri-Hernández, César A / Espinosa-Reyes, Guillermo / Cruz-Santiago, Omar / Cuevas-Díaz, María D C / Martín Del Campo, Claudia C / Flores-Ramírez, Rogelio

    Ecotoxicology and environmental safety

    2019  Band 180, Seite(n) 403–411

    Abstract: The delta of the Coatzacoalcos river is a priority region for the biological conservation in the Gulf of Mexico. Environmental studies in the area have detected a complex mixture of contaminants where the presence of Persistent organic compounds (POPs) ... ...

    Abstract The delta of the Coatzacoalcos river is a priority region for the biological conservation in the Gulf of Mexico. Environmental studies in the area have detected a complex mixture of contaminants where the presence of Persistent organic compounds (POPs) is highlighted. Deoxyribonucleic acid (DNA) integrity of biological populations are global concerns due to their ecological implications. The purpose of this study was to measure the exposure to POPs and DNA damage in nine species residing in the Coatzacoalcos river classified by taxonomic group, type of habitat and feeding habits. Total POPs concentrations (minimum and maximum) detected for all species were from 22.7 to 24,662.1 ng/g l.w; and the values of DNA damage (minimum and maximum) varied from 0.7 to 20.5 and from 6.5 to 56.8 μm (Olive tail moment and tail length respectively). Broadly speaking, reptiles, species residing in the wetland and the ones with a carnivorous diet showed higher levels of POPs and DNA damage. This study provides us with a baseline of the state of POPs contamination and shows the degree of environmental stress to which the different components of the ecosystem of the Coatzacoalcos river delta are subject to.
    Mesh-Begriff(e) Animals ; Aquatic Organisms/drug effects ; Aquatic Organisms/genetics ; DNA Damage ; Environmental Monitoring/methods ; Gulf of Mexico ; Mexico ; Organic Chemicals/analysis ; Organic Chemicals/toxicity ; Rivers/chemistry ; Water Pollutants, Chemical/analysis ; Water Pollutants, Chemical/toxicity
    Chemische Substanzen Organic Chemicals ; Water Pollutants, Chemical
    Sprache Englisch
    Erscheinungsdatum 2019-05-17
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 436536-7
    ISSN 1090-2414 ; 0147-6513
    ISSN (online) 1090-2414
    ISSN 0147-6513
    DOI 10.1016/j.ecoenv.2019.05.030
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  9. Artikel ; Online: DNA damage in earthworms by exposure of Persistent Organic Pollutants in low basin of Coatzacoalcos River, Mexico.

    Espinosa-Reyes, Guillermo / Costilla-Salazar, Rogelio / Pérez-Vázquez, Francisco J / González-Mille, Donaji J / Flores-Ramírez, Rogelio / Del Carmen Cuevas-Díaz, María / Medellin-Garibay, Susana E / Ilizaliturri-Hernández, Cesar A

    The Science of the total environment

    2018  Band 651, Heft Pt 1, Seite(n) 1236–1242

    Abstract: Persistent Organic Pollutants (POPs) are stable organic chemicals that represent a potential risk for ecosystems due to their high toxicity, persistence and biomagnification through food chains. Bioindicators in ecosystems have emerged to assess the ... ...

    Abstract Persistent Organic Pollutants (POPs) are stable organic chemicals that represent a potential risk for ecosystems due to their high toxicity, persistence and biomagnification through food chains. Bioindicators in ecosystems have emerged to assess the effect of environmental pollutants. Earthworms are some of the most common bioindicator organisms in terrestrial ecosystems. The main objective of this study was to evaluate the geontoxicity of POP exposure in wild earthworms captured at different levels of urbanization throughout the lower basin of the Coatzacoalcos River (industrial, urban and rural areas). POP soil and earthworm tissue concentrations were measured via Gas-Mass Chromatography, and earthworm DNA damage was evaluated through the comet assay. The greatest concentrations of ΣPOPs, DDT and HCH were found in soil from industrial sites, followed by urban and rural areas (504.68, 383.10, 298.16; 22.6, 4.6, 2.6 and 433.7, 364, 255.6 mg/kg, respectively). Unlike other pollutants, mean ΣPCBs values were highest for industrial soil samples, followed by those from rural and urban areas (41.10, 33.97 and 12.44 mg/kg respectively). For all earthworm tissue POP analyses, the highest concentrations were found in individuals from industrial sites, followed by the urban and rural areas. Furthermore, the highest levels of DNA damage were registered in the industrial area, followed by the urban and rural areas. These assays suggest a strong links among regional soil contamination, POPs bioavailability and the potential risk of detrimental health effects for organisms that inhabit surface soil (soil life). Earthworms contribute vital ecosystem services that could be affected by these results. This work provides evidence of the potential ecological risk that exists in the Lower Basin of the Coatzacoalcos River.
    Mesh-Begriff(e) Animals ; DNA Damage ; Environmental Exposure ; Environmental Monitoring ; Mexico ; Oligochaeta/drug effects ; Oligochaeta/genetics ; Soil Pollutants/adverse effects
    Chemische Substanzen Soil Pollutants
    Sprache Englisch
    Erscheinungsdatum 2018-09-17
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2018.09.207
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  10. Artikel: "The One Health" a Methodological Approach to Study the Vulnerability and Effects of Persistent Organic Pollutants (POPs) in Coatzacoalcos Veracruz, Mexico

    Gonzalez-Mille, Donaji J. / Cruz-Santiago, Omar / Ilizaliturri-Hernández, César A. / Espinosa-Reyes, Guillermo / Pelallo-Martinez, Nadia A. / Trejo-Acevedo, Antonio / Sánchez-Guerra, Marco / Mejia-Saavedra, Jesus / Diaz-Barriga, Fernando

    Advances in environmental research

    2020  Band 77, Heft -, Seite(n) 145

    Sprache Englisch
    Dokumenttyp Artikel
    ZDB-ID 2452610-1
    ISSN 2158-5717
    Datenquelle Current Contents Ernährung, Umwelt, Agrar

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