School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangdong, Guangzhou 510275, China.
Environ Monit Assess. 2012 Aug;184(8):4921-9. doi: 10.1007/s10661-011-2312-3. Epub 2011 Sep 14.
Phthalate esters (PAEs) were examined in indoor and outdoor dust samples from the subtropical city of Guangzhou, China. The ∑(16)PAEs concentrations ranged from 121 to 3,223 μg g(-1) dust, with the median concentration of 840 μg g(-1) dust. Significantly higher concentrations of PAEs in dust samples were found in offices where electrical and electronic devices, carpet pads, and office furniture were widely used. Of the 16 PAEs, diisobutyl phthalate (DiBP), di-n-butyl phthalate (DnBP), and di(2-ethylhexyl) phthalate (DEHP) dominated the PAEs in indoor and outdoor dust samples, and accounted for >96.8% and >93.1% of the ∑(16)PAEs concentrations, respectively. The median daily inhalation exposure of ∑(16)PAEs were 3.53 and 0.247 μg kg(-1) body weight day(-1), and at the 95(th) percentile were 7.62 and 0.530 μg kg(-1) body weight day(-1), up on the measured concentrations and estimated dust ingestion rates, respectively, for toddles and adults. The ubiquitous distribution of PAEs as noted in this study suggests the need for detailed assessment of PAEs concentrations using more sites and to further investigate the factors influencing PAEs exposure in China.
邻苯二甲酸酯（PAEs）在来自中国亚热带城市广州的室内和室外灰尘样本中进行了检测。∑（16）PAEs 的浓度范围从 121 到 3223μg/g 灰尘，中位数浓度为 840μg/g 灰尘。在广泛使用电气和电子设备、地毯衬垫和办公家具的办公室中，灰尘样本中的 PAEs 浓度明显更高。在 16 种 PAEs 中，邻苯二甲酸二异丁酯（DiBP）、邻苯二甲酸二正丁酯（DnBP）和邻苯二甲酸二（2-乙基己基）酯（DEHP）在室内和室外灰尘样本中占主导地位，分别占∑（16）PAEs 浓度的>96.8%和>93.1%。∑（16）PAEs 的日均吸入暴露量分别为 3.53 和 0.247μg/kg 体重/天，95%分位数分别为 7.62 和 0.530μg/kg 体重/天，分别高于幼儿和成人的实测浓度和估计的灰尘摄入量。本研究中 PAEs 的普遍分布表明，需要使用更多的地点来详细评估 PAEs 浓度，并进一步研究影响中国 PAEs 暴露的因素。
