Characterization and sources of childhood PAEs exposure from residential airborne dust in China cities

IF 5.9 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES
Chao Wang , Shuhan Gong , Yun Cao , Mengmeng Liu , Wenying Zhang , Xiaotong Zhang , Lin Fan , Li Li , Hang Du , Mats Tysklind , Xu Yang , Xianliang Wang
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Abstract

To explore the multicenter characteristics of endocrine-like phthalate esters (PAEs) in household dust and propose effective control strategies for global indoor public health. An on-site observational investigation was conducted in nine Chinese cities from 2018 to 2019. A total of 246 household dust samples were collected and analyzed for ten PAE congeners using Gas Chromatography-Mass Spectrometry (GC-MS). Questionnaires were used to gather information on building conditions, indoor behaviors, and ventilation habits. In residential dust from the nine cities, the total concentrations of the ten PAE congeners (∑PAEs) ranged from 0.921 to 29097.297 µg/g. Dicyclohexyl phthalate (DCHP) and di (2-ethylhexyl) phthalate (DEHP) were the dominant congeners in ∑PAEs. Childhood exposure to PAEs through dust ingestion was four orders of magnitude higher than through inhalation, with a carcinogenic risk of 5.47 × 10−6 for DEHP exposure in household dust. Higher ∑PAEs concentrations were associated with higher temperature, double glazing, wall paint usage, television and computer use, and indoor plant growth. This multicenter on-site investigation confirmed PAE pollution characteristics and uncovered the inacceptable risk of daily DEHP exposure in household dust under real living conditions. Effective mitigation measures based on household-related information, residential characteristics, decoration materials, and lifestyle should be taken to build a healthy household environment.

Abstract Image

中国城市儿童从住宅空气灰尘中接触 PAEs 的特征和来源
为探索家庭灰尘中内分泌类邻苯二甲酸酯(PAEs)的多中心特征,并提出有效的控制策略,促进全球室内公共健康。2018年至2019年,在中国9个城市开展了现场观察调查。共收集了246份家庭灰尘样本,并使用气相色谱-质谱联用仪(GC-MS)分析了10种PAE同系物。调查问卷用于收集有关建筑条件、室内行为和通风习惯的信息。在九个城市的住宅灰尘中,十种 PAE 同系物的总浓度(∑PAEs)介于 0.921 至 29097.297 µg/g 之间。邻苯二甲酸二环己基酯 (DCHP) 和邻苯二甲酸二(2-乙基己基)酯 (DEHP) 是∑PAEs 的主要同系物。儿童通过摄入灰尘接触 PAEs 的风险比通过吸入高四个数量级,在家庭灰尘中接触 DEHP 的致癌风险为 5.47 × 10-6。较高的∑PAEs浓度与较高的温度、双层玻璃、墙漆的使用、电视和电脑的使用以及室内植物的生长有关。这项多中心现场调查证实了 PAE 的污染特征,并揭示了在实际生活条件下,每天从家居灰尘中接触 DEHP 的风险是不可接受的。应根据家庭相关信息、住宅特点、装修材料和生活方式采取有效的缓解措施,以构建健康的家庭环境。
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来源期刊
Journal of Environmental Sciences-china
Journal of Environmental Sciences-china 环境科学-环境科学
CiteScore
13.70
自引率
0.00%
发文量
6354
审稿时长
2.6 months
期刊介绍: The Journal of Environmental Sciences is an international journal started in 1989. The journal is devoted to publish original, peer-reviewed research papers on main aspects of environmental sciences, such as environmental chemistry, environmental biology, ecology, geosciences and environmental physics. Appropriate subjects include basic and applied research on atmospheric, terrestrial and aquatic environments, pollution control and abatement technology, conservation of natural resources, environmental health and toxicology. Announcements of international environmental science meetings and other recent information are also included.
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