Plasma concentration of 14 perfluoroalkyl acids (PFAAs) among children from seven cities in Guangdong, China

Autor: Zihuan Li, Ruijia Zhang, Peishan Liu, Jufeng Ye, Kaihui Xu, Zhifeng Zhou, Ande Ma, Minjie Li, Qinzhi Wei, Ruopei Chen, Wenting Lin
Rok vydání: 2017
Předmět:
Zdroj: The Science of the total environment.
ISSN: 1879-1026
Popis: The toxicity and persistence of perfluoroalkyl acids (PFAAs) in humans have drawn growing concerns, particularly for children. However, data regarding the concentrations of PFAAs in children are limited. In this study, we measured the concentrations of 14 PFAAs in plasma samples collected from 1192 children aged 0-7years from 7 cities in Guangdong Province: Guangzhou, Shenzhen, Foshan, Dongguan, Zhaoqing, Zhongshan and Zhanjiang. Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) were detected in >99.5% of the analysed samples. PFOS had the highest median concentration (23.6ng/mL) in the total samples, followed by PFOA (2.8ng/mL). The median concentrations of the other PFAAs were lower than 0.4ng/mL. The concentrations of perfluorohexanoic acid, perfluorononanoic acid, perfluorodecanoic acid, perfluorododecanoic acid, perfluorohexane sulfonate, PFOA and PFOS in children from Foshan were significantly higher than those found in other cities (p
Databáze: OpenAIRE