State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China; School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing, 404130, China.
State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China.
Chemosphere. 2024 Sep;364:143182. doi: 10.1016/j.chemosphere.2024.143182. Epub 2024 Aug 27.
Phthalate acid esters (PAEs), as a common group of plasticizers, are widely present in indoor environments and pose a risk to human health. Indoor dust samples collected from dormitory, classroom, laboratory, and office in several universities in China, were analyzed for seven types of PAEs. The total concentrations of seven PAEs (ΣPAEs) ranged from 4.87 to 360 μg/g, with a median concentration of 51 μg/g, which is lower than that reported by other studies. Using the median concentration of ΣPAEs as a metric, we assessed the levels of contamination in different microenvironments, resulting in the following ranking: dormitory > classroom > laboratory > office. There are significant differences in the levels of individual PAEs in different microenvironments. Radiation from sunlight, ventilation rates, cleaning frequency, and sprays were influential factors for the concentrations of individual PAEs in indoor dust. The indoor environmental conditions and consumption patterns profoundly affect PAEs levels. The sources of PAEs in classroom and office were more complex than in dormitory and laboratory. Daily intakes of PAEs were used to calculate carcinogenic and non-carcinogenic human risk for males and females, indicating a low health risk to humans. This is the first study to assess the risk of PAEs in university microenvironments and provides a valuable reference for further research.
邻苯二甲酸酯（PAEs）作为一类常见的增塑剂，广泛存在于室内环境中，对人类健康构成威胁。本研究采集了中国几所大学宿舍、教室、实验室和办公室的室内灰尘样本，分析了 7 种 PAEs 的浓度。7 种 PAEs（ΣPAEs）的总浓度范围为 4.87-360μg/g，中位数浓度为 51μg/g，低于其他研究报道的浓度。以 ΣPAEs 的中位数浓度为指标，评估了不同微环境中的污染水平，结果显示：宿舍＞教室＞实验室＞办公室。不同微环境中，各 PAEs 的浓度存在显著差异。阳光辐射、通风率、清洁频率和喷雾等因素对室内灰尘中各 PAEs 的浓度有影响。室内环境条件和消费模式对 PAEs 水平有很大影响。教室和办公室中 PAEs 的来源比宿舍和实验室更为复杂。通过计算每日 PAEs 的摄入量，评估了男性和女性的致癌和非致癌人体风险，结果表明对人体健康的风险较低。这是首次评估大学微环境中 PAEs 风险的研究，为进一步研究提供了有价值的参考。
