Non-carcinogenic and carcinogenic health risks associated with heavy metals and polycyclic aromatic hydrocarbons in well-water samples from an automobile junk market in Ibadan, SW-Nigeria

Aa, Oni; Babalola, Stephen Olufemi; Adeleye, Adeyeri David; Olagunju, Temidayo Ebenezer; Amama, Ijeoma Anthonia; Omole, Esther  Onaopemipo; Adegboye, Ezra Ajibola; Ohore, Obokparo Godspower

doi:10.1016/j.heliyon.2022.e10688

Cited by 19 publications

(3 citation statements)

References 25 publications

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“…Chronic daily intake (CDI) and cancer risk (CR) were calculated for estimating the carcinogenic risk for selected LL components. CDI and CR factors were calculated according to [19][20][21][22].…”

Section: Estimation Of Chronic Daily Intake (Cdi) and Cancer Risk (Cr)mentioning

confidence: 99%

Chemical Composition and Toxicological Evaluation of Landfill Leachate from Białystok, Poland

Jabłońska-Trypuć,

Wołejko,

Wydro

et al. 2023

Sustainability

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Leachates from landfills constitute a very complex environmental matrix with potentially toxic properties for both the environment and humans. Due to this fact, toxicological tests were carried out on landfill leachate (LL) obtained from the local landfill in Hryniewicze (Poland). The analyses included physicochemical studies of leachates and their impact on soil and plants, and studies conducted in bacterial models and human cell models. The results obtained indicate high contents of metals and organic matter, especially dangerous PAHs, in the tested leachate. This results in the influence of LL on changes in the content of assimilation pigments and oxidative stress observed in plants grown in soil fed with leachates. The effect of leachate on the growth of Sporosarcina pasteurii, Staphylococcus aureus, Lactobacillus rhamnosus, Saccharomyces boulardii and Candida albicans varied depending on the strain and LL dose. A particularly significant increase in proliferation after exposure to LL was noted for S. aureus. In studies conducted on human cancer cell lines representing three types of glioblastomas and one type of colorectal adenocarcinoma, a particularly significant increase in the viability of cells treated with LL was noted for the DLD-1 cell line. The results obtained, especially the stimulation of the growth of cancer cells and an increase in the number of pathogenic bacteria, indicate the potential toxic properties of the tested leachates. This is confirmed by the high level of oxidative stress in plants. The results indicate the need for continuous monitoring of waste landfills and leachates generated there.

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Section: Estimation Of Chronic Daily Intake (Cdi) and Cancer Risk (Cr)mentioning

confidence: 99%

Chemical Composition and Toxicological Evaluation of Landfill Leachate from Białystok, Poland

Jabłońska-Trypuć,

Wołejko,

Wydro

et al. 2023

Sustainability

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“…where D i is the sum of the human exposure (mg/kg•d) caused by exposure routes such as oral intake and skin contact and RfD is the reference dose for non-carcinogenic exposure pathways (mg/kg•d). When HQ > 1, it indicates that the pollutant may pose a potential non-carcinogenic risk; when HQ < 1, it can be considered that there is no chronic noncarcinogenic risk [30].…”

Section: Health Risk Assessmentmentioning

confidence: 99%

Study on the Impact of Emulsion on Mine Water Quality and Health Risk Assessment

Qiu,

Liu,

et al. 2023

Water

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The composition of emulsion is complex. In the process of coal mining, the emulsion required by the hydraulic equipment can enter the mine water through a variety of channels, thereby affecting the water quality of the mine. In this study, the mine water of a super large coal mine, Daliuta Coal Mine, was collected, and static and dynamic simulation tests were designed to analyze the changes in various water quality indicators of mine water containing different concentrations of emulsions over time. Furthermore, the health risk assessment model was applied to evaluate the health risks of hexavalent chromium (Cr6+) and chloride in mine water containing emulsions on different populations. The results indicate that the alkaline substances such as sodium castor oil in the emulsion can increase the pH value of mine water, but it is more obvious when the emulsion concentration is high. The mine water itself contains chloride and sulfate exceeding 300 and 400 mg/L, respectively, and the addition of emulsion under static conditions has little effect on them, while the amount of emulsion added under dynamic conditions reaches 20 mL/L, which has a significant impact. The emulsion contains a certain amount of Cr6+ and can affect the total dissolved solid content, total hardness, and other indicators of mine water through mechanisms such as adsorption, solubilization, and chemical precipitation. The calculation results of the health risk assessment model indicate that the excessive chloride in the mine water in the area poses a potential non-carcinogenic risk to all populations exposed to their environment. The health risk index of Cr6+ increases with the increase in emulsion content in mine water, and the potential non-carcinogenic risk is higher for children. Overall, emulsions can significantly deteriorate the quality of mine water. This research can provide a scientific theoretical basis for subsequent study of mine water pollutant treatment, water quality monitoring and management, and health risk assessment, thereby contributing to reducing the health risks it brings and protecting the safety of local groundwater quality.

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“…Polycyclic aromatic hydrocarbons (PAHs), composed of two or more benzene rings, are a kind of stable and persistent pollutants, which can accumulate in the food chain and then enter into animals, plants, and the human body, causing teratogenic, carcinogenic, and mutagenic effects. 1,2 Studies have shown that PAHs are not easily degradable under the natural environment owing to their excellent chemical stability. 3 Currently, the main treatment methods for PAH wastewater include microbial degradation, physical adsorption and advanced oxidation processes (AOPs).…”

Section: Introductionmentioning

confidence: 99%

Study of adsorption-oxidative degradation of PAHs over organic–inorganic hybrid layered double hydroxides

Zhang,

Liang,

et al. 2024

New J. Chem.

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Non-carcinogenic and carcinogenic health risks associated with heavy metals and polycyclic aromatic hydrocarbons in well-water samples from an automobile junk market in Ibadan, SW-Nigeria

Cited by 19 publications

References 25 publications

Chemical Composition and Toxicological Evaluation of Landfill Leachate from Białystok, Poland

Chemical Composition and Toxicological Evaluation of Landfill Leachate from Białystok, Poland

Study on the Impact of Emulsion on Mine Water Quality and Health Risk Assessment

Study of adsorption-oxidative degradation of PAHs over organic–inorganic hybrid layered double hydroxides

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