Accumulation of perfluoroalkyl substances in lysimeter-grown rice in Japan using tap water and simulated contaminated water

Eriko Yamazaki, Sachi Taniyasu, Kosuke Noborio, Heesoo Eun, Pooja Thaker, Nirmal J.I. Kumar, Xinhong Wang, Nobuyoshi Yamashita

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Abstract

Perfluoroalkyl substances (PFASs) are a group of contaminants of concern in agricultural crops, but little is known of their accumulation or behavior in grains. We grew Japanese rice (Oryza sativa subsp. indica) in lysimeters irrigated with tap water or tap water plus simulated contaminated water for 2 years, then analyzed the roots, straw, unhulled rice, white rice, bran, soil, and water for PFASs residues. Total fluorine was measured by combustion ion chromatography. Estimated per-plant residue levels were 3.0 pg perfluorooctanesulfonic acid (PFOS) (bran: 0.5%, hull: 99.5%), 0.54 pg N-ethylperfluorooctanesulfonamide (N-EtFOSA) (white rice: 67%, hull: 33%), 1.2 pg perfluorobutanoic acid (PFBA) (white rice: 13%, bran: 7%, hull: 79%), 0.68 pg perfluoropentanoic acid (hull: 100%), 0.50 pg perfluorohexanoic acid (PFHxA) (white rice: 65%, bran: 16%, hull: 19%), 0.21 pg perfluoroheptanoic acid (hull: 100%), 0.25 pg perfluorooctanoic acid (PFOA) (hull: 100%), and 0.12 pg perfluorodecanoic acid (PFNA) (white rice: 81%, bran: 19%). Estimated daily PFASs intakes were <1–3 ng perfluorooctanesulfonamide, <1–7 ng N-EtFOSA, 1–2 ng PFBA, <3–4 ng PFHxA, and 1–2 ng PFNA. Estimated PFOS, PFOA, and total PFASs in straw feed were 0.4, 0.1, and 2 kg yr−1 and 0.7, 0.4, and 8 kg yr−1 in 2015 and 2016, respectively. Estimated PFOS, PFOA, and total PFASs in straw fertilizer were 4, 1, and 23 kg yr−1 and 7, 4, and 86 kg yr−1 in 2015 and 2016, respectively. PFASs accumulation may cause longer residence time in agricultural systems owing to straw being used as animal feed and organic fertilizer.

Original languageEnglish
Pages (from-to)502-509
Number of pages8
JournalChemosphere
Volume231
DOIs
Publication statusPublished - 1 Sep 2019

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perfluorooctanoic acid
Lysimeters
Straw
lysimeter
Japan
rice
Acids
Water
acid
Fertilizers
hull
Ion chromatography
water
Fluorine
straw
Crops
Animals
Agricultural Crops
Impurities
Soils

Keywords

  • Combustion ion chromatography
  • Lysimeter
  • Oryza sativa subsp. indica
  • Perfluoroalkyl substances (PFASs)
  • Total fluorine
  • Transfer factor

Cite this

Yamazaki, Eriko ; Taniyasu, Sachi ; Noborio, Kosuke ; Eun, Heesoo ; Thaker, Pooja ; Kumar, Nirmal J.I. ; Wang, Xinhong ; Yamashita, Nobuyoshi. / Accumulation of perfluoroalkyl substances in lysimeter-grown rice in Japan using tap water and simulated contaminated water. In: Chemosphere. 2019 ; Vol. 231. pp. 502-509.
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Accumulation of perfluoroalkyl substances in lysimeter-grown rice in Japan using tap water and simulated contaminated water. / Yamazaki, Eriko; Taniyasu, Sachi; Noborio, Kosuke; Eun, Heesoo; Thaker, Pooja; Kumar, Nirmal J.I.; Wang, Xinhong; Yamashita, Nobuyoshi.

In: Chemosphere, Vol. 231, 01.09.2019, p. 502-509.

Research output: Contribution to journalArticle

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T1 - Accumulation of perfluoroalkyl substances in lysimeter-grown rice in Japan using tap water and simulated contaminated water

AU - Yamazaki, Eriko

AU - Taniyasu, Sachi

AU - Noborio, Kosuke

AU - Eun, Heesoo

AU - Thaker, Pooja

AU - Kumar, Nirmal J.I.

AU - Wang, Xinhong

AU - Yamashita, Nobuyoshi

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Y1 - 2019/9/1

N2 - Perfluoroalkyl substances (PFASs) are a group of contaminants of concern in agricultural crops, but little is known of their accumulation or behavior in grains. We grew Japanese rice (Oryza sativa subsp. indica) in lysimeters irrigated with tap water or tap water plus simulated contaminated water for 2 years, then analyzed the roots, straw, unhulled rice, white rice, bran, soil, and water for PFASs residues. Total fluorine was measured by combustion ion chromatography. Estimated per-plant residue levels were 3.0 pg perfluorooctanesulfonic acid (PFOS) (bran: 0.5%, hull: 99.5%), 0.54 pg N-ethylperfluorooctanesulfonamide (N-EtFOSA) (white rice: 67%, hull: 33%), 1.2 pg perfluorobutanoic acid (PFBA) (white rice: 13%, bran: 7%, hull: 79%), 0.68 pg perfluoropentanoic acid (hull: 100%), 0.50 pg perfluorohexanoic acid (PFHxA) (white rice: 65%, bran: 16%, hull: 19%), 0.21 pg perfluoroheptanoic acid (hull: 100%), 0.25 pg perfluorooctanoic acid (PFOA) (hull: 100%), and 0.12 pg perfluorodecanoic acid (PFNA) (white rice: 81%, bran: 19%). Estimated daily PFASs intakes were <1–3 ng perfluorooctanesulfonamide, <1–7 ng N-EtFOSA, 1–2 ng PFBA, <3–4 ng PFHxA, and 1–2 ng PFNA. Estimated PFOS, PFOA, and total PFASs in straw feed were 0.4, 0.1, and 2 kg yr−1 and 0.7, 0.4, and 8 kg yr−1 in 2015 and 2016, respectively. Estimated PFOS, PFOA, and total PFASs in straw fertilizer were 4, 1, and 23 kg yr−1 and 7, 4, and 86 kg yr−1 in 2015 and 2016, respectively. PFASs accumulation may cause longer residence time in agricultural systems owing to straw being used as animal feed and organic fertilizer.

AB - Perfluoroalkyl substances (PFASs) are a group of contaminants of concern in agricultural crops, but little is known of their accumulation or behavior in grains. We grew Japanese rice (Oryza sativa subsp. indica) in lysimeters irrigated with tap water or tap water plus simulated contaminated water for 2 years, then analyzed the roots, straw, unhulled rice, white rice, bran, soil, and water for PFASs residues. Total fluorine was measured by combustion ion chromatography. Estimated per-plant residue levels were 3.0 pg perfluorooctanesulfonic acid (PFOS) (bran: 0.5%, hull: 99.5%), 0.54 pg N-ethylperfluorooctanesulfonamide (N-EtFOSA) (white rice: 67%, hull: 33%), 1.2 pg perfluorobutanoic acid (PFBA) (white rice: 13%, bran: 7%, hull: 79%), 0.68 pg perfluoropentanoic acid (hull: 100%), 0.50 pg perfluorohexanoic acid (PFHxA) (white rice: 65%, bran: 16%, hull: 19%), 0.21 pg perfluoroheptanoic acid (hull: 100%), 0.25 pg perfluorooctanoic acid (PFOA) (hull: 100%), and 0.12 pg perfluorodecanoic acid (PFNA) (white rice: 81%, bran: 19%). Estimated daily PFASs intakes were <1–3 ng perfluorooctanesulfonamide, <1–7 ng N-EtFOSA, 1–2 ng PFBA, <3–4 ng PFHxA, and 1–2 ng PFNA. Estimated PFOS, PFOA, and total PFASs in straw feed were 0.4, 0.1, and 2 kg yr−1 and 0.7, 0.4, and 8 kg yr−1 in 2015 and 2016, respectively. Estimated PFOS, PFOA, and total PFASs in straw fertilizer were 4, 1, and 23 kg yr−1 and 7, 4, and 86 kg yr−1 in 2015 and 2016, respectively. PFASs accumulation may cause longer residence time in agricultural systems owing to straw being used as animal feed and organic fertilizer.

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KW - Lysimeter

KW - Oryza sativa subsp. indica

KW - Perfluoroalkyl substances (PFASs)

KW - Total fluorine

KW - Transfer factor

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