Compositional fractionation of polyaromatic hydrocarbons in the karst soils, South China

Wang, Yinghui; Xue, Rui; Li, Jie; Zhu, Hongxiang; Xu, Yiyin; Xue, Baoming; Qi, Shihua; Yuan, Daoxian; Theodore, Oramah I.

doi:10.1007/s12665-011-1426-9

Cited by 5 publications

(5 citation statements)

References 17 publications

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“…natural oil seepage and oil spills) or pyrogenic (if the source is derived from the incomplete combustion of organic matter and fossil fuel). Polycyclic aromatic hydrocarbons are one of the first and largest set of compounds that have been observed to be strongly mutagenic to laboratory animals and humans and many studies have suggested a link between PAHs exposure and incidences of immune-toxicities and cancers 50. A comparison of total PAHs obtained in the present study and different parts of Africa is presented in Table 3.…”

Section: Discussionmentioning

confidence: 75%

“…The presence of LMW PAHs in the water can be attributed to their high vapor pressure and water solubility, while the low concentration or absence of HMW PAHs can be attributed to their lower water solubility and great tendency to adsorb onto solid phases 49. Generally, the composition of PAHs is characterized by the greater number of aromatic rings with high carcinogenicity 50. The occurrence of PAHs in water based on the compositional patterns (that is, the number of aromatic rings) of PAHs can be classified into low (2–3 ring), intermediate (4-ring) and high (5–6 ring) PAHs 50.…”

Section: Discussionmentioning

confidence: 99%

“…Generally, the composition of PAHs is characterized by the greater number of aromatic rings with high carcinogenicity 50. The occurrence of PAHs in water based on the compositional patterns (that is, the number of aromatic rings) of PAHs can be classified into low (2–3 ring), intermediate (4-ring) and high (5–6 ring) PAHs 50. In this study, the percentage composition of PAHs detected in the samples according to the number of rings are as follows; 2–3-ring PAHs accounted for 63.64% of total PAHs, 4-ring PAHs accounted for 27.27% of total PAHs, while 5–6-ring PAHs accounted for 9.09% of total PAHs detected in water.…”

Section: Discussionmentioning

confidence: 99%

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Concentration of Polycyclic Aromatic Hydrocarbons and Estimated Human Health Risk of Water Samples Around Atlas Cove, Lagos, Nigeria

Olayinka

Adewusi

Olarenwaju

et al. 2018

Journal of Health and Pollution

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Background.Polycyclic aromatic hydrocarbons (PAHs) are common pollutants in water and have been reported to cause severe health effects in humans as well as the ecosystem.Objectives.This study examined the concentrations of polycyclic aromatic hydrocarbons and estimated the human health risk from water samples around Atlas Cove jetty, Lagos, Nigeria.Methods.Physical and chemical parameters and PAHs were determined in Atlas Cove jetty water using standard methods from June to August 2016 at five different points of activity. Chronic daily intake through ingestion, exposure dose via dermal absorption and carcinogenic risks were calculated for children and adults.Results.Electrical conductivity values ranged from 23,600±57.74 - 30,000±57.74 μS/cm. Dissolved oxygen ranged from 6.27±0.46 - 9.60±0.00 mg/L. Biochemical oxygen demand levels ranged from 2.93±0.61 - 7.33±0.23 mg/L and total dissolved solid ranged from 17,500±57.74 - 20,000±57.74 mg/L for the water samples, which was higher than permissible limits. The values obtained for pH, chemical oxygen demand, nitrate, sulphate and phosphate for the water samples were within World Health Organization (WHO) limits except for pH at point 2 (3.18±0.02). A total of eleven PAH congeners were detected in the water samples. The concentrations of total PAHs observed in water samples ranged from 46 - 507 μg/L. Low molecular weight PAHs were more dominant in all samples. It was observed that 2–3 ring PAHs accounted for 63.64% of PAHs, 4-rings PAHs accounted for 27.27% of PAHs, and 5–6 ring PAHs accounted for 9.09% of PAHs.Conclusions.Carcinogenic risks calculated for both adults and children were higher than the United States Environmental Protection Agency (USEPA) acceptable cancer risk, and much higher for children, which suggests that children could be prone to cancer through ingestion. Fauna and flora around the Atlas Cove jetty may be at risk due to water pollution.Competing Interests.The authors declare no competing financial interests.

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Section: Discussionmentioning

confidence: 75%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Concentration of Polycyclic Aromatic Hydrocarbons and Estimated Human Health Risk of Water Samples Around Atlas Cove, Lagos, Nigeria

Olayinka

Adewusi

Olarenwaju

et al. 2018

Journal of Health and Pollution

View full text Add to dashboard Cite

show abstract

“…In order to further describe the occurrence of PAHs in the water, compositional patterns of PAHs were studied. Based on the number of aromatic rings, the compositional patterns of PAHs can be classified into light (2–3 ring), 4-ring and heavy (5–6 ring) PAHs [ 19 ]. According to the findings, the concentration of 4-ring PAHs, which accounted for 56%, was the highest in water samples, the concentration of light PAHs ranked second with the proportion of 38% and that of the heavy PAHs was the lowest with 5% for 5-ring PAHs and 1% for 6-ring PAHs.…”

Section: Resultsmentioning

confidence: 99%

Human Health and Ecological Risk Assessment of 16 Polycyclic Aromatic Hydrocarbons in Drinking Source Water from a Large Mixed-Use Reservoir

Sun

Zhang

et al. 2015

IJERPH

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Reservoirs play an important role in living water supply and irrigation of farmlands, thus the water quality is closely related to public health. However, studies regarding human health and ecological risk assessment of polycyclic aromatic hydrocarbons (PAHs) in the waters of reservoirs are very few. In this study, Shitou Koumen Reservoir which supplies drinking water to 8 million people was investigated. Sixteen priority PAHs were analyzed in a total of 12 water samples. In terms of the individual PAHs, the average concentration of Fla, which was 5.66 × 10−1 μg/L, was the highest, while dibenz(a,h)anthracene which was undetected in any of the water samples was the lowest. Among three PAH compositional patterns, the concentration of low-molecular-weight and 4-ring PAHs was dominant, accounting for 94%, and the concentration of the total of 16 PAHs was elevated in constructed-wetland and fish-farming areas. According to the calculated risk quotients, little or no adverse effects were posed by individual and complex PAHs in the water on the aquatic ecosystem. In addition, the results of hazard quotients for non-carcinogenic risk also showed little or no negative impacts on the health of local residents. However, it could be concluded from the carcinogenic risk results that chrysene and complex PAHs in water might pose a potential carcinogenic risk to local residents. Moreover, the possible sources of PAHs were identified as oil spills and vehicular emissions, as well as the burning of biomass and coal.

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“…Thus, HMW-PAHs are more likely to distribute in the particle phases (soil and sediments) rather than in water. Soil layers can filter out PAHs by adsorption when PAHs transport to the groundwater (Sun et al 2019), which is more efficient for HMW compounds (Lan et al 2019, Wang et al 2012. HMW-PAHs preferentially tend to bind to particles (Sun et al 2009, and particlepromoted transport with rapid water flow may be pivotal for their mobilization to sediments and soil (Schwarz et al 2011).…”

Section: Pahs Compositionsmentioning

confidence: 99%

Distribution, sources and transport of polycyclic aromatic hydrocarbons (PAHs) in karst spring systems from Western Hubei, Central China

et al. 2022

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Compositional fractionation of polyaromatic hydrocarbons in the karst soils, South China

Cited by 5 publications

References 17 publications

Concentration of Polycyclic Aromatic Hydrocarbons and Estimated Human Health Risk of Water Samples Around Atlas Cove, Lagos, Nigeria

Concentration of Polycyclic Aromatic Hydrocarbons and Estimated Human Health Risk of Water Samples Around Atlas Cove, Lagos, Nigeria

Human Health and Ecological Risk Assessment of 16 Polycyclic Aromatic Hydrocarbons in Drinking Source Water from a Large Mixed-Use Reservoir

Distribution, sources and transport of polycyclic aromatic hydrocarbons (PAHs) in karst spring systems from Western Hubei, Central China

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