title: Major perfluoroalkyl acid (PFAA) concentrations and influence of food consumption among the general population of Daegu, Korea.
abstract: Perfluoroalkyl acids (PFAAs) have been used in various industrial and consumer products for decades, and have consequently been detected in human blood worldwide. In the present study, general adult population in Daegu, Korea (n=140, >20 years of old) was recruited, collected for serum, and analyzed for 13 major PFAAs. The influence of dietary and water consumption on serum PFAA levels was also evaluated. Perfluorooctane sulfonic acid (PFOS), perfluorooctanoic acid (PFOA), and perfluorohexane sulfonic acid (PFHxS) were frequently detected with relatively higher concentrations in blood serum. Most PFAA concentrations except for PFOA were detected in higher concentrations among males, and were positively correlated with age and body mass index (BMI). PFOA concentrations were relatively higher among the female of childbearing age, e.g., 20-49years old, raising concerns on potential impacts on fetus through transplacental transfer or lactation. In addition, the concentrations of PFOA in Daegu population were higher than other areas of Korea, suggesting a presence of distinctive sources in the area. Among food items, potato consumption was identified to be significant contributor to serum PFOA. For PFUnDA and PFTrDA levels, intake of fish/shellfish was positively associated. The results of this study will be useful in developing public health management options for PFAAs.
authors.affiliation: School of Public Health, Seoul National University, Seoul 151-742, Republic of Korea.
authors.forename: Kyunghee
authors.initials: K
authors.lastname: Ji
authors.forename: Sunmi
authors.initials: S
authors.lastname: Kim
authors.forename: Younglim
authors.initials: Y
authors.lastname: Kho
authors.forename: Joon
authors.initials: J
authors.lastname: Sakong
authors.forename: Domyung
authors.initials: D
authors.lastname: Paek
authors.forename: Kyungho
authors.initials: K
authors.lastname: Choi
mesh_terms: D000328:Adult; D000367:Age Factors; D017738:Alkanesulfonic Acids / Q000097:blood*; D015992:Body Mass Index; D002210:Caprylates / Q000097:blood*; D002851:Chromatography, High Pressure Liquid; D004032:Diet; D060766:Drinking Water / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods / Q000706:statistics & numerical data*; D005260:Female; D005466:Fluorocarbons / Q000097:blood*; D005506:Food Contamination / Q000032:analysis*; D006801:Humans; D008297:Male; D056910:Republic of Korea; D012737:Sex Factors; D011198:Solanum tuberosum / Q000737:chemistry; D018709:Statistics, Nonparametric; D013451:Sulfonic Acids / Q000097:blood*; D011795:Surveys and Questionnaires; D053719:Tandem Mass Spectrometry
chemical_list: D017738:Alkanesulfonic Acids; D002210:Caprylates; D060766:Drinking Water; D005466:Fluorocarbons; D013451:Sulfonic Acids; C471071:perfluorohexanesulfonic acid; C023036:perfluorooctanoic acid; C076994:perfluorooctane sulfonic acid