Liu Daxi, Wu Pengfei, Zhao Nan, Nie Saisai, Cui Jiansheng, Zhao Meirong, Jin Hangbiao
College of Environmental Science and Technology, Hebei University of Science & Technology, Shijiazhuang, Hebei, 050018, China.
State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, China.
Chemosphere. 2021 Aug;276:130016. doi: 10.1016/j.chemosphere.2021.130016. Epub 2021 Mar 1.
Bisphenol analogues (BPs) are widely applied in varying consumer products. Many studies have reported their presence in indoor dust samples from China. However, the differences in occurrence and concentration profiles of BPs in indoor dust between rural and urban areas are still not well characterized. In this study, eight BPs were measured in 60 indoor dust samples collected from rural and urban districts of Hangzhou, China. Bisphenol A (BPA; mean 1.8 μg/g, range 0.20-7.2 μg/g) was the predominant BP in indoor dust samples, accounting for mean 57% of the total BP (∑BP) concentration, followed by bisphenol S (BPS; 0.58 μg/g, <LOD-2.4 μg/g) and bisphenol AF (0.43 μg/g, <LOD-2.6 μg/g). Indoor dust samples from the urban areas (n = 27) contained significantly (p < 0.05) higher levels of ∑BPs, BPA, and BPS than that from the rural areas (n = 33). Comparatively, bisphenol F and bisphenol AP were more frequently detected in urban indoor dust samples. Daily intakes (DIs) of BPs through the indoor dust inhalation were estimated for infants, children, and adults. Infants had much higher (p < 0.01) DIs of BPs than children and adults, mainly owing to their lower body weights and higher indoor dust ingestion rates. To our knowledge, this is one of the first studies examining the regional differences of BP concentrations in indoor dust from China, which could contribute to the more accurate evaluation of human BP exposure through indoor dust intake.
双酚类似物（BPs）广泛应用于各类消费品中。许多研究报告了它们在中国室内灰尘样本中的存在情况。然而，农村和城市地区室内灰尘中BPs的存在情况和浓度分布差异仍未得到充分表征。在本研究中，对从中国杭州农村和城市地区采集的60个室内灰尘样本中的8种BPs进行了测量。双酚A（BPA；平均1.8μg/g，范围0.20 - 7.2μg/g）是室内灰尘样本中的主要BPs，占总BPs（∑BPs）浓度的平均57%，其次是双酚S（BPS；0.58μg/g，<检测限 - 2.4μg/g）和双酚AF（0.43μg/g，<检测限 - 2.6μg/g）。城市地区（n = 27）的室内灰尘样本中∑BPs、BPA和BPS的含量显著高于农村地区（n = 33）（p < 0.05）。相比之下，双酚F和双酚AP在城市室内灰尘样本中更频繁地被检测到。估计了婴儿、儿童和成人通过吸入室内灰尘摄入BPs的每日摄入量（DIs）。婴儿摄入BPs的DIs比儿童和成人高得多（p < 0.01），主要是因为他们体重较低且室内灰尘摄入量较高。据我们所知，这是首批研究中国室内灰尘中BPs浓度区域差异的研究之一，有助于更准确地评估人类通过摄入室内灰尘接触BPs的情况。
