Bioconcentration factor of perfluorochemicals for each aerial part of rice

최, 근형; 이, 득영; Bae, Ji-Yeon; 노, 진호; 문, 병철; 김, 진효

doi:10.3839/jabc.2018.028

Cited by 6 publications

(10 citation statements)

References 19 publications

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“…The highest PUF for PFOA and PFOS in the test vegetables was found 2.821 and 3.175 in spinach, respectively. Although both of the plant uptake experiments were not performed on the same soil condition, the PUFs for PFOA and PFOS in spinach were similar values with the previously reported in rice straw (0.769-1.474 for PFOA and 1.749-4.700 for PFOS) [7]. In addition, the PUFs for the PFAAs were at least 10-fold higher than those for endosulfan and other organochlorine POPs [5,8,9,15].…”

Section: Vegetable C Soil ---------------------supporting

confidence: 82%

“…The cleanup and quantitation procedure for PFAAs was followed by Choi et al [7] with slight modification. Briefly, 10.0 g vegetable was extracted with 75% methanol (10 mL×3) then centrifuged at 3000 rpm and the supernatant was collected.…”

Section: Analytical Sample Preparation For Residual Pfaas In Vegetablesmentioning

confidence: 99%

“…However, it would be difficult to propose the environmental guideline for agricultural soil and water unless the study on crops uptake of PFOA and PFOS from soil environment is supported. To solve this problem, plant uptake factors (PUFs) or bioconcentration factors of PFOA and PFOS were reported in several crops such as carrot, cucumber, lettuce, maize, potato, radish, rice and wheat [7,11,19,22,37]. However, the plant uptake potentials of PFAAs were studied limitedly and there was still needed to study on various food crops.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of the plant uptake factor of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) from the three different concentrations of PFOA and PFOS in soil to spinach and Welsh onion

Lee

Choi²,

Rho³

et al. 2020

JABC

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The long-chained perfluoroalkyl acids (PFAAs), perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), are a potential exposure risk in the environment, specifically for humans due to high levels of bioaccumulation, persistence, and toxicity. In the current study, the plant uptake factors (PUFs) of spinach and Welsh onion were investigated on the three different concentration levels of PFOA and PFOS in soil. Spinach and Welsh onion were divided into three residue groups, a control group and two levels of PFOA and PFOS. The PFAAs spiked soils were aged for six months and the extractable residue of PFOS in the aged soil was reduced to 30-59% of the initial spiked concentrations for PFOS, while PFOA showed almost the same initial spiked concentrations. The PUFs for PFOA and PFOS were 0.111-2.821 and 0.047-3.175 for spinach, and 0.203-0.738 and 0.035-0.181 for Welsh onion, respectively. The highest PUF values in both vegetable were displayed when the residual concentration of PFAAs were part-per-billion (ppb) or sub-ppb in soil.

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Section: Vegetable C Soil ---------------------supporting

confidence: 82%

Section: Analytical Sample Preparation For Residual Pfaas In Vegetablesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of the plant uptake factor of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) from the three different concentrations of PFOA and PFOS in soil to spinach and Welsh onion

Lee

Choi²,

Rho³

et al. 2020

JABC

Self Cite

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show abstract

“…The major sources of PFAS in human diets are from dairy, fish, and meat products. Little is known about exposure from plant based products, although exposure from these sources is believed to represent a minor source due to their relatively low bioaccumulation factors (< 0.01 -4.7) (Lechner and Knapp 2011;Blaine et al 2013;Garcia-Valcarcel et al 2014;Choi et al 2018;Ghisi et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Environmental and dietary exposure of perfluorooctanoic acid and perfluorooctanesulfonic acid in the Nakdong River, Korea

Choi¹,

Lee

Bruce-Vanderpuije

et al. 2020

Environ Geochem Health

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This study performed the first environmental and dietary exposure assessment to explore plant uptake of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) from agricultural soil and irrigation water in the Nakdong River delta, South Korea. Annual average concentrations of total PFOA and PFOS ranged from 0.026 to 0.112 µg L -1 (irrigation water), and from 0.818 to 1.364 µg kg -1 (soil), respectively. PFOA and PFOS hotspots were identified downstream of the Nakdong River, and were influenced by seasonal climatic variations. The observed average biennial concentration of the sum of PFOA and PFOS decreased in irrigation water, from 0.112 µg L -1 in 2013 to 0.026 µg L -1 in 2015, suggests that the 2013 Persistent Organic Pollutants Control Act may have helped to reduce levels of PFAS at this location. This study calculated some of the highest plant uptake factors reported to date, with values ranging from 0.962 in green onions to < 0.004 in plums. Leafy vegetables and rice are important components of the Korean diet; these groups had the largest contribution to the estimated dietary intake of PFOA and PFOS, which was calculated at 0.449 and 0.140 ng kgbw -1 day -1 , respectively. This corresponded to 66.4% for PFOA and 7.9% for PFOS of the EFSA reference dose (RfD). The dietary intake of PFOA and PFOS from crops alone did not exceed the RfD. However, when the estimated daily intake (EDI) from other sources such as tap water, meat, fish, dairy and beverages were included in the exposure risk assessment, both of the EDIs to PFOA and PFOS exceeded the RfDs, indicating there may be a risk to human health. This study concludes that consumption of crops might, therefore, be a significant and underappreciated pathway for human exposure to PFAS.

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“…However, PFCs are harmful to both the natural environment and humans as like other well-known pollutants [1,[3][4][5][6]. Furthermore, PFCs are persistent materials that do not readily break down in natural environments [2].…”

Section: Introductionmentioning

confidence: 99%

Enzymatic defluorination of fluorinated compounds

et al. 2019

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Fluorine-containing compounds are widely used because they have properties required in textiles and coatings for electronic, automotive, and outdoor products. However, fluorinated compounds do not easily break down in nature, which has resulted in their accumulation in the environment as well as the human body. Recently, the enzymatic defluorination of fluorine-containing compounds has gained increasing attention. Here, we review the enzymatic defluorination reactions of fluorinated compounds. Furthermore, we review the enzyme engineering strategies for cleaving C-F bonds, which have the highest dissociation energy found in organic compounds.

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Bioconcentration factor of perfluorochemicals for each aerial part of rice

Cited by 6 publications

References 19 publications

Comparison of the plant uptake factor of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) from the three different concentrations of PFOA and PFOS in soil to spinach and Welsh onion

Comparison of the plant uptake factor of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) from the three different concentrations of PFOA and PFOS in soil to spinach and Welsh onion

Environmental and dietary exposure of perfluorooctanoic acid and perfluorooctanesulfonic acid in the Nakdong River, Korea

Enzymatic defluorination of fluorinated compounds

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