Assessment of Exposure to Lead in Humans and Turtles Living in an Industrial Site in Coatzacoalcos Veracruz, Mexico

Pelallo-Martínez, Nadia Azenet; Ilizaliturri-Hernández, César A.; Espinosa-Reyes, Guillermo; Carrizales-Yáñez, Leticia; González-Mille, Donaji J.

doi:10.1007/s00128-011-0290-3

Cited by 10 publications

(4 citation statements)

References 13 publications

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“…Furthermore, in response to lead toxicity in children in Mexico, Pellalo-Martinez et al (2011) observed Sliders (Trachemys scripta) in the area to contain twice the lead concentration than in the children. They went on to hypothesize that turtles may provide an integrated approach to public health in that geographic area (Pellalo-Martinez et al 2011). Moreover, at an ecosystem level, decreased turtle abundance was associated with increased concentrations of certain heavy metals within a superfund site in the US (Yu et al 2013).…”

Section: Introductionmentioning

confidence: 96%

“…Many reports have demonstrated elevated levels of heavy metals in aquatic turtles (Ley-Quinonez et al 2011;Yu et al 2011). Furthermore, in response to lead toxicity in children in Mexico, Pellalo-Martinez et al (2011) observed Sliders (Trachemys scripta) in the area to contain twice the lead concentration than in the children. They went on to hypothesize that turtles may provide an integrated approach to public health in that geographic area (Pellalo-Martinez et al 2011).…”

Section: Introductionmentioning

confidence: 96%

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Select metal and metalloid surveillance of free-ranging Eastern box turtles from Illinois and Tennessee (Terrapene carolina carolina)

et al. 2015

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The Eastern box turtle (Terrapene carolina carolina) is a primarily terrestrial chelonian distributed across the eastern US. It has been proposed as a biomonitor due to its longevity, small home range, and reliance on the environment to meet its metabolic needs. Plasma samples from 273 free-ranging box turtles from populations in Tennessee and Illinois in 2011 and 2012 were evaluated for presence of heavy metals and to characterize hematologic variables. Lead (Pb), arsenic (As), zinc (Zn), chromium (Cr), selenium (Se), and copper (Cu) were detected, while cadmium (Cd) and silver (Ag) were not. There were no differences in any metal detected among age class or sex. However, Cr and Pb were higher in turtles from Tennessee, while As, Zn, Se, and Cu were higher in turtles from Illinois. Seasonal differences in metal concentrations were observed for Cr, Zn, and As. Health of turtles was assessed using hematologic variables. Packed cell volume was positively correlated with Cu, Se, and Pb in Tennessee. Total solids, a measure of plasma proteins, in Tennessee turtles were positively correlated with Cu and Zn. White blood cell count, a measure of inflammation, in Tennessee turtles was negatively correlated with Cu and As, and positively correlated with Pb. Metals are a threat to human health and the health of an ecosystem, and the Eastern Box Turtle can serve as a monitor of these contaminants. Differences established in this study can serve as baseline for future studies of these or related populations.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 96%

Select metal and metalloid surveillance of free-ranging Eastern box turtles from Illinois and Tennessee (Terrapene carolina carolina)

et al. 2015

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“…According to [11] the river receives discharges of sewage and industrial waters. Also, the presence of POPs and lead (Pb) has been demonstrated, as well as the effects of these compounds on terrestrial and aquatic organisms [10,11,30].…”

Section: (Figure 2)mentioning

confidence: 99%

“…In this sense, intense industrialization in the lower basin of the Coatzacoalcos river is associated with the increase of heavy metals such as lead [47,48]. Different studies in this region have reported the presence of lead in organisms such as fish, turtles, toads, and even humans, associated with neighboring industrial complexes [11,30,49]. Therefore, these could be factors that led to exposure to lead in the toads of the industrial zone in both 2008 and 2016.…”

Section: δ-Alad Activitymentioning

confidence: 99%

Monitoring Physiological Responses in Giant Toad (Rhinella marina) from Coatzacoalcos, Mexico: A Comparative Study after 8 Years

González-Mille¹,

Cruz-Santiago²,

Espinosa-Reyes³

et al. 2018

Reptiles and Amphibians

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The objective of this chapter is to present the results of a monitoring study carried out with physiological responses (biomarkers) in Rhinella marina (giant toad) for two different years, inhabiting the low basin of Coatzacoalcos river, one of the most contaminated regions in Mexico. A decrease in delta aminolevulinic acid dehydratase (δ-ALAD) (considered inhibition) and in the condition factor (1.2-1.5 times) found in toads of the industrial zone compared with reference organisms, each year. As for the hematological parameters, the mean corpuscular hemoglobin concentrations (MCHC), in the amphibians of industrial zone of the first sampling year show a decrease, while for the second sampling year, show an increment of 1.5 times than organisms of reference site. These effects could be associated with exposure to pollutants such as heavy metals (mainly Pb), which have been registered in different studies. This study demonstrates the usefulness of giant toads as biomonitors of contaminated sites.

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Giant Toads (Rhinella marina) From the Industrial Zones of Low Basin of the Coatzacoalcos River (Veracruz, MX) Presents Genotoxicity in Erythrocytes

Cruz-Santiago

Castillo

Espinosa-Reyes

et al. 2021

Bull Environ Contam Toxicol

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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. Supplementary Information The online version contains supplementary material available at 10.1007/s00128-021-03162-2.

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Assessment of Exposure to Lead in Humans and Turtles Living in an Industrial Site in Coatzacoalcos Veracruz, Mexico

Cited by 10 publications

References 13 publications

Select metal and metalloid surveillance of free-ranging Eastern box turtles from Illinois and Tennessee (Terrapene carolina carolina)

Select metal and metalloid surveillance of free-ranging Eastern box turtles from Illinois and Tennessee (Terrapene carolina carolina)

Monitoring Physiological Responses in Giant Toad (Rhinella marina) from Coatzacoalcos, Mexico: A Comparative Study after 8 Years

Giant Toads (Rhinella marina) From the Industrial Zones of Low Basin of the Coatzacoalcos River (Veracruz, MX) Presents Genotoxicity in Erythrocytes

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