Temporal-spatial distributions and ecological risks of perfluoroalkyl acids (PFAAs) in the surface water from the fifth-largest freshwater lake in China (Lake Chaohu)

Liu, Wenxiu; He, Wei; Qin, Ning; Kong, Xiangzhen; He, Qing; Yang, Bin; Yang, Chen; Jørgensen, Sven Erik; Xu, Fu-Liu

doi:10.1016/j.envpol.2015.01.028

Cited by 54 publications

(20 citation statements)

References 47 publications

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“…The SSD method was employed to discuss the ecological risks of PFOS and PFOA in different seasons and at different sampling points in Lake Chaohu and the influence of different distribution models on a SSD curve was compared (Liu et al 2015c). In addition, SSD model was applied to predict the noobserved effect concentrations of PFOS and PFOA at levels of 35.16 µg/L and 2546 µg/L, respectively (Qi et al 2011;Gredelj et al 2018).…”

Section: Ecological Risk Of Pfaasmentioning

confidence: 99%

A review on perfluoroalkyl acids studies: Environmental behaviors, toxic effects, and ecological and health risks

Liu

et al. 2019

Ecosyst Health Sustain

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Perfluoroalkyl acids (PFAAs) are emerging persistent organic pollutants that are globally distributed in the environment. In the present review, the occurrence of PFAAs and their behavior in aquatic ecosystem were summarized, and the health and ecological risk assessment and the multimedia fate simulation were investigated. PFAAs are most likely to exist in the aqueous phase, and PFAAs in atmosphere are also able to enter water bodies through diffusion and wet and dry deposition and eventually become widely distributed in various environmental media. The air-solid partition is considered to be one of the major factors in the long-distance transportation of the pollutants. The pKa values and organic carbon fraction of the sediment could influence the partition of PFAAs between water and sediment. Otherwise, PFAAs have teratogenic, mutagenic and other toxic effects and they could be accumulated by biota, and magnified through trophic level. The ecological and health risks of PFOA and PFOS were assessment. In order to explore the partition mechanism and reduce the uncertainty of the simulation of the transport, transformation and fate, the experimental methods on physicochemical properties of PFAAs should be developed. Moreover, further studies on toxicities of PFAAs are necessary for health and ecological risk assessment.

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Section: Ecological Risk Of Pfaasmentioning

confidence: 99%

A review on perfluoroalkyl acids studies: Environmental behaviors, toxic effects, and ecological and health risks

Liu

et al. 2019

Ecosyst Health Sustain

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“…To investigate the PFOA and PFOS inputs to the lake, data on the major rivers flowing into the lake were obtained in both March and September 2013 (unpublished data). The methods for sample collection and measurement are available elsewhere (Liu et al 2015b). We also collected data from the literature as a supplement to this study.…”

Section: Data Collectionmentioning

confidence: 99%

“…In fact, the emission flux for PFOS in our model (0.35 mol/h; Table S4) was estimated at the provincial level in China , while Lake Chaohu is located in the most developed region in the province. Higher regional emission of PFOS to the Lake Chao area would be expected as the consequences of local or regional industrial production of PFASs (Liu et al 2015b). We subsequently applied the "inverse modeling" approach (Parajulee and Wania 2014) to estimate the emission flux to air that would be required to explain measured PFOS concentrations in the gas phase.…”

Section: Model Validationmentioning

confidence: 99%

“…For the water advection, we used observation from sample sites at the entrances of major rivers to the lake as the concentrations in the inflows (unpublished data). The method details for sampling and measurement were the same as those in our previous studies (Qin et al 2014, Liu et al 2015b. The total advection inflows for both air and water were calculated monthly following the method in our previous study (Kong et al 2014).…”

Section: Other Major Inputsmentioning

confidence: 99%

“…During the past several decades, this lake has suffered from intensive human disturbance and has become one of the most eutrophic lakes in China (Kong et al 2017a). Meanwhile, Lake Chaohu has been subject to severe pollution by persistent toxic substances (PTSs) (He et al 2014) including PFASs (Liu et al 2015b). A comprehensive evaluation of the distribution and dominant processes of PFASs in this lake using a modeling approach is highly valuable for lake managers.…”

Section: Introductionmentioning

confidence: 99%

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Model studies on the dynamics of hydrophobic organic compounds in shallow lake ecosystems

Kong¹

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Chapter 3 Simulation of the fate and seasonal variations of αhexachlorocyclohexane (α-HCH) in Lake Chaohu using a dynamic fugacity model Chapter 4 Modeling the multimedia fate dynamics of γ-Hexachlorocyclohexane in a large Chinese lake Chapter 5 Multimedia fate modeling of perfluorooctanoic acid (PFOA) and perfluorooctane sulphonate (PFOS) in the shallow lake Chaohu, China Chapter 6 Integrated ecological and chemical food web accumulation modeling explains PAH temporal trends during regime shifts in a shallow lake

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Current status and historical variations of phthalate ester (PAE) contamination in the sediments from a large Chinese lake (Lake Chaohu)

Kang

Wang

et al. 2015

Environ Sci Pollut Res

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The residual levels of phthalate esters (PAEs) in the surface and two core sediments from Lake Chaohu were measured with a gas chromatograph-mass spectrometer (GC-MS). The temporal-spatial distributions, compositions of PAEs, and their effecting factors were investigated. The results indicated that di-n-butyl phthalate (DnBP), diisobutyl phthalate (DIBP), and di(2-ethylhexyl) phthalate (DEHP) were three dominant PAE components in both the surface and core sediments. The residual level of total detected PAEs (∑PAEs) in the surface sediments (2.146 ± 2.255 μg/g dw) was lower than that in the western core sediments (10.615 ± 9.733 μg/g) and in the eastern core sediments (5.109 ± 4.741 μg/g). The average content of ∑PAEs in the surface sediments from the inflow rivers (4.128 ± 1.738 μg/g dw) was an order of magnitude higher than those from the lake (0.323 ± 0.093 μg/g dw), and there were similar PAE compositions between the lake and inflow rivers. This finding means that there were important effects of PAE input from the inflow rivers on the compositions and distributions of PAEs in the surface sediments. An increasing trend was found for the residual levels of ΣPAEs, DnBP, and DIBP from the bottom to the surface in both the western and eastern core sediments. Increasing PAE usage with the population growth, urbanization, and industrial and agricultural development in Lake Chaohu watershed would result in the increasing production of PAEs and their resulting presence in the sediments. The significant positive relationships were also found between the PAE contents and the percentage of sand particles, as well as TOC contents in the sediment cores.

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Temporal-spatial distributions and ecological risks of perfluoroalkyl acids (PFAAs) in the surface water from the fifth-largest freshwater lake in China (Lake Chaohu)

Cited by 54 publications

References 47 publications

A review on perfluoroalkyl acids studies: Environmental behaviors, toxic effects, and ecological and health risks

A review on perfluoroalkyl acids studies: Environmental behaviors, toxic effects, and ecological and health risks

Model studies on the dynamics of hydrophobic organic compounds in shallow lake ecosystems

Current status and historical variations of phthalate ester (PAE) contamination in the sediments from a large Chinese lake (Lake Chaohu)

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