Li Na, Ying Guang-Guo, Hong Huachang, Deng Wen-Jing
Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, N.T., Hong Kong SAR, China; Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou, 510006, China; School of Environment, South China Normal University, University Town, Guangzhou, 510006, China.
Environ Pollut. 2021 Feb 1;270:116219. doi: 10.1016/j.envpol.2020.116219. Epub 2020 Dec 7.
Seven perfluorinated and polyfluorinated substances (PFASs), namely perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDA), perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), perfluoroheptanoic acid (PFHpA), perfluorohexanoic acid (PFHxA), and perfluoro-1,10-decanedicarboxylic acid (PFDDA), were evaluated in urine and hair samples from children (age: 4-6 years, N = 53), airborne particles sampled at 17 kindergartens, and tap water and bottled water samples. All samples were collected in Hong Kong. The analytical results suggested widespread PFAS contamination. All target PFASs were detected in at least 32% of urine samples, with geometric mean (GM) concentrations ranging from 0.18 to 2.97 ng/L, and in 100% of drinking water samples at GM concentrations of 0.18-21.1 ng/L. Although PFOS and PFDDA were not detected in hair or air samples, the other target PFASs were detected in 48-70% of hair samples (GM concentrations: 2.40-233 pg/g) and 100% of air samples (GM concentrations: 14.8-536.7 pg/m). In summary, the highest PFAS concentrations were detected in airborne particles measured in kindergartens. PFOA was the major PFAS detected in hair, urine, and drinking water samples, while PFOA, PFDA, and PFHpA were dominant in airborne particles. Although a significant difference in PFAS concentrations in hair samples was observed between boys and girls (p < .05), no significant sex-related difference in urinary PFAS or paired PFAS (hair/urine) concentrations was observed.
在来自儿童（年龄：4 - 6岁，N = 53）的尿液和头发样本、在17所幼儿园采集的空气颗粒物样本以及自来水和瓶装水样本中，对七种全氟和多氟物质（PFASs）进行了评估，即全氟壬酸（PFNA）、全氟癸酸（PFDA）、全氟辛酸（PFOA）、全氟辛烷磺酸（PFOS）、全氟庚酸（PFHpA）、全氟己酸（PFHxA）和全氟 - 1,10 - 癸二酸（PFDDA）。所有样本均在香港采集。分析结果表明PFAS污染广泛。所有目标PFASs在至少32%的尿液样本中被检测到，几何平均（GM）浓度范围为0.18至2.97 ng/L，在100%的饮用水样本中被检测到，GM浓度为0.18 - 21.1 ng/L。尽管在头发或空气样本中未检测到PFOS和PFDDA，但其他目标PFASs在48 - 70%的头发样本（GM浓度：2.40 - 233 pg/g）和100%的空气样本（GM浓度：14.8 - 536.7 pg/m）中被检测到。总之，在幼儿园测量的空气颗粒物中检测到的PFAS浓度最高。PFOA是在头发、尿液和饮用水样本中检测到的主要PFAS，而PFOA、PFDA和PFHpA在空气颗粒物中占主导地位。尽管在男孩和女孩的头发样本中观察到PFAS浓度存在显著差异（p < 0.05），但在尿液PFAS或配对的PFAS（头发/尿液）浓度中未观察到显著的性别相关差异。
