Characteristics and Health Risk Assessment of Semi-Volatile Organic Contaminants in Rural Pond Water of Hebei Province

Abstract

Pond water as surface water has certain environmental impacts on environmental media such as groundwater, lakes, atmosphere, and soil. Organic pollutants present in pond water may pose health risks to humans, but research on organic pollutants in pond water is rare. Here, taking pond water collected in rural areas of Hebei province as the sample, we analyzed and evaluated four categories of semi-volatile organic compounds (SVOCs), including 11 phenolic compounds, 7 aniline compounds, 16 parent polycyclic aromatic hydrocarbons (PAHs), 14 PAH derivatives, and 16 phthalate esters (PAEs). The results show that the 10 water samples contained 26.2–17034 ng/L of Σ phenols, 33.7–2612 ng/L of Σ anilines, 33.9–1651 ng/L of Σ PAHs, and 59.0–2800 ng/L of Σ PAEs. Furthermore, non-carcinogenic risk and carcinogenic risk caused by SVOCs through direct ingestion and dermal exposure were also assessed. The current levels of non-carcinogenic risks and carcinogenic risks through these two means of exposure are within acceptable limits, except for the site 1 and site 5 in Hebei province where a total cancer risk exceeds 10−6. It can be concluded that the pond water studied had a low risk of carcinogenicity to the human.

Characterization of offline analysis of particulate matter with FIGAERO-CIMS

“…C8H6O3I -, C6H5NO3Iand C7H6NO3I -). They can be aromatics or their thermal fragmentation products (Liu et al, 2019). Due to the high surface area of the Quartz filters, semi-or low volatile compounds are more easily adsorbed than on Teflon filters, potentially resulting in higher positive artefacts.…”

Fate of pyrene on mineral surfaces during thermal remediation as a function of temperature

“…They are highly toxic, potentially causing nervous system damage, reproductive disorders, and cancer. 1 PAHs primarily end up in soils, 2 and their low volatility and recalcitrant nature make cleanup problematic. Heating soil to elevated temperatures (thermally enhanced remediation) is being used to promote PAH removal, especially at heavily contaminated sites where bioremediation is not feasible.…”

“…The objectives of this study are (1) to determine the role of specic redox active minerals in promoting contaminant transformation during treatment as a function of temperature, and (2) to determine the dominant reaction pathways and mechanisms by which transformation occurs under wet and dry initial conditions. To accomplish these objectives, pyrene removal experiments were performed at various temperatures in the presence of redox active or redox inactive minerals, and with or without water present.…”