Arsenic toxicity, bioaccumulation and risk assessment: A case study in Tolimique Dam, Aguascalientes, Mexico

We detected arsenic near the Tolimique Dam, an archaeological ecotourism area in Aguascalientes, México. Fortunately, the concentration range of this metalloid (0.001 to 0.003 mg L −1 ) did not exceed the total arsenic in water allowed by NOM-127-SSA1-1994 (0.025 mg L −1 ). However, because arsenic...

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Bibliographic Details
Published in:Cogent environmental science 2019, Vol.5 (1), p.1650630
Main Authors: Alvarado-Flores, Jesús, Rubio-Franchini, Isidoro, Sánchez-Ávila, Alejandra Sofía, Ramírez-Tlalolín, Gabriel de Jesús, Rico-Martínez, Roberto
Format: Article
Language:English
Subjects:
Acute toxicity
Aquatic ecosystems
Archaeology
Arsenic
Bioaccumulation
Biological magnification
biomagnification
Brachionus calyciflorus
Disruption
Ecotourism
ecotoxicology
Endocrine disruptors
Environmental assessment
Environmental risk
Fish
Indigenous species
Low concentrations
Metal concentrations
metalloid
metalloids pollution
Necrosis
Oligochaeta
Pollutants
Risk assessment
Rotifera
Toxicity
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Summary:We detected arsenic near the Tolimique Dam, an archaeological ecotourism area in Aguascalientes, México. Fortunately, the concentration range of this metalloid (0.001 to 0.003 mg L −1 ) did not exceed the total arsenic in water allowed by NOM-127-SSA1-1994 (0.025 mg L −1 ). However, because arsenic is a high-risk priority pollutant at low concentrations in aquatic ecosystems, we studied the acute toxicity, bioaccumulation, and endocrine disruption of arsenic using native species of Rotifera (Brachionus calyciflorus Pallas, 1766, Brachionus rubens Ehrenberg, 1838, and Lecane cornuta Müller, 1786), Oligochaeta (Aeolosoma hemprichi Ehrenberg, 1838), and fish (Oreochromis nilotica Linnaeus, 1758). We found 20 species in the Tolimique Dam, including 13 rotifer species, 4 cladocerans species, and one of each of the following species: copepods, oligochaetes, and fish. Environmental Risk Assessment (ERA) was performed using the Predicted No-Effect Concentration (PNEC) and the Measured Environmental Concentration (MEC) of arsenic. In conclusion, arsenic produced cellular necrosis in A. hemprichi at a concentration of 5.0 mg L −1 and endocrine disruption in B. calyciflorus at a concentration of 0.05 mg L −1 . The detection of arsenic at an average of 2.05 ± 0.30 mg Kg −1 in O. niloticus fish suggests a probable biomagnification of arsenic.
ISSN:2331-1843
2331-1843
2765-8511
DOI:10.1080/23311843.2019.1650630