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Article ; 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 Volume 25, Issue 8, Page(s) 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 term(s)	Animals ; Microplastics/toxicity ; Plastics ; Ecosystem ; Environmental Monitoring ; Water Pollutants, Chemical/toxicity ; Water Pollutants, Chemical/analysis ; Amphibians ; Environmental Pollutants
Chemical Substances	Microplastics ; Plastics ; Water Pollutants, Chemical ; Environmental Pollutants
Language	English
Publishing date	2022-11-09
Publishing country	England
Document type	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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Article ; 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.
Keywords	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
Language	English
Dates of publication	2023-03
Publishing place	Elsevier B.V.
Document type	Article ; 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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Article ; 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 Volume 103, Page(s) 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.
Language	English
Publishing date	2023-09-22
Publishing country	Netherlands
Document type	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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Article: 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.
Keywords	Rhinella marina ; apoptosis ; basins ; biomarkers ; biphenyl ; cell cycle ; chlorinated hydrocarbons ; erythrocytes ; flow cytometry ; genotoxicity ; light microscopes ; multivariate analysis ; pollution ; rivers ; toxicology ; Gulf of Mexico
Language	English
Dates of publication	2022-01
Size	p. 64-70.
Publishing place	Springer US
Document type	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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Article ; 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 Volume 208, Page(s) 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 term(s)	Bacteria/metabolism ; Carbon/metabolism ; Metalloids/metabolism ; Metals, Heavy/metabolism ; Mexico ; Mining ; Soil Microbiology ; Soil Pollutants/metabolism
Chemical Substances	Metalloids ; Metals, Heavy ; Soil Pollutants ; Carbon (7440-44-0)
Language	English
Publishing date	2020-10-26
Publishing country	Netherlands
Document type	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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Article ; 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 Volume 108, Issue 1, Page(s) 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. 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 term(s)	Animals ; Bufo marinus ; Environmental Monitoring ; Erythrocytes ; Polycyclic Aromatic Hydrocarbons/analysis ; Rivers
Chemical Substances	Polycyclic Aromatic Hydrocarbons
Language	English
Publishing date	2021-03-15
Publishing country	United States
Document type	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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Article ; 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 Volume 197, Page(s) 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 term(s)	Animals ; Arsenic/analysis ; Child ; Environmental Exposure/adverse effects ; Environmental Exposure/analysis ; Humans ; Lead/analysis ; Mexico ; Mining ; Risk Assessment ; Rodentia ; Soil Pollutants/analysis
Chemical Substances	Soil Pollutants ; Lead (2P299V784P) ; Arsenic (N712M78A8G)
Language	English
Publishing date	2020-04-10
Publishing country	Netherlands
Document type	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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Article ; 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 Volume 180, Page(s) 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 term(s)	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
Chemical Substances	Organic Chemicals ; Water Pollutants, Chemical
Language	English
Publishing date	2019-05-17
Publishing country	Netherlands
Document type	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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Article: "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 Volume 77, Issue -, Page(s) 145

Language	English
Document type	Article
ZDB-ID	2452610-1
ISSN	2158-5717
Database	Current Contents Nutrition, Environment, Agriculture

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Article ; 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 Volume 651, Issue Pt 1, Page(s) 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 term(s)	Animals ; DNA Damage ; Environmental Exposure ; Environmental Monitoring ; Mexico ; Oligochaeta/drug effects ; Oligochaeta/genetics ; Soil Pollutants/adverse effects
Chemical Substances	Soil Pollutants
Language	English
Publishing date	2018-09-17
Publishing country	Netherlands
Document type	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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