Perfluorinated carboxylic acids in edible clams: A possible exposure source of perfluorooctanoic acid for Japanese population

We investigated the profiles and levels of perfluoroalkyl carboxylic acids in edible clams from five fishing sites in Japan (Hokkaido, Himakajima-Aichi, Atsumi-Aichi, Kyoto, and Kumamoto) and one site in Vancouver, Canada in 2017. The mean concentrations of perfluoroalkyl carboxylic acids with 6–15...

Full description

Saved in:
Bibliographic Details
Published in:Environmental pollution (1987) 2020-08, Vol.263, p.114369, Article 114369
Main Authors: Fujii, Yukiko, Harada, Kouji H., Nakamura, Tsubasa, Kato, Yoshihisa, Ohta, Chiho, Koga, Nobuyuki, Kimura, Osamu, Endo, Tetsuya, Koizumi, Akio, Haraguchi, Koichi
Format: Article
Language:English
Subjects:
Clam
Dietary intake
Japan
Perfluoroalkyl carboxylic acid
Perfluorooctanoic acid
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigated the profiles and levels of perfluoroalkyl carboxylic acids in edible clams from five fishing sites in Japan (Hokkaido, Himakajima-Aichi, Atsumi-Aichi, Kyoto, and Kumamoto) and one site in Vancouver, Canada in 2017. The mean concentrations of perfluoroalkyl carboxylic acids with 6–15 carbon atoms (C6–C15) in edible clams from Japanese coastal waters ranged from 197 to 1757 pg/g wet weight, but were only 48 pg/g wet weight in clams from the site in Canada. Total perfluoroalkyl carboxylic acid concentrations in clams collected in Japanese waters were 4–40 times higher than concentrations in clams from Canada. Perfluorooctanoic acid (C8) contributed 53% of total perfluoroalkyl carboxylic acid concentrations in the clams from Japanese waters, which may be contaminated from terrestrial sources though river effluents, but was not detected in the clam samples from Canada. Principal component analysis separated shorter- and longer-chain perfluoroalkyl carboxylic acids, suggesting differing emission sources or environmental fate. Consumption of clams may be an exposure pathway of perfluorooctanoic acid in the Japanese population. [Display omitted] •Perfluorinated carboxylic acid levels were measured in edible clams.•Perfluorooctanoic acid levels were higher in clams from Japan than from Canada.•Clams may be contaminated by terrestrial sources though river water effluents.•Consumption of clams may be an exposure pathway of perfluorooctanoic acid in Japan.
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2020.114369