The Effect of Low-Level Indoor Exposure Toluene on Orienting Network

IF 4.3 2区环境科学与生态学 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Indoor air Pub Date : 2023-10-06 DOI:10.1155/2023/3836418

Changqing Zhan, Liping Pan, Jiajing Wang, Mingrui Cui, Peiran Yu, Jie Liu, Xin Zhang, Zukun Wang, Lei Zhao, Junjie Liu, Yijun Song

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引用次数: 0

Abstract

Objective. The aim is to explore the effect and mechanism of indoor toluene exposure on orienting network. Methods. Twenty-two healthy adults were exposed to 0 ppb, 17.5 ppb, 35 ppb, and 70 ppb toluene for 4 hours, respectively. All subjects underwent attention network behavioral test, and their electroencephalographic activity was recorded simultaneously. The causal connection strengths of orienting network were calculated through direct transform function (DTF) methods. The DTF values of orienting networks among four groups were compared. Results. (1) The DTF values of parietal outflow (DTF_outflow) in 70 ppb toluene condition were higher than those of the 0 ppb, 17.5 ppb, and 35 ppb conditions, respectively. (2) The DTFCZ-FZ and DTFCZ-FP2 values of 70 ppb toluene condition were found to be lower as compared to 0 ppb condition. The DTFCZ-FP2 values of 70 ppb condition were lower as compared to those of the 17.5 ppb condition. Furthermore, DTFP3-FP2, DTFP4-FP1, and DTFP4-FZ values of 70 ppb condition were higher as compared to those of the 0 ppb condition. The DTFP3-FP2 values of 70 ppb condition were higher as compared to those of the 17.5 ppb condition. The DTFP4-FP1 values of the 70 ppb condition were higher as compared to those of the 17.5 and 35 ppb conditions. Conclusion. Even short-term exposure to indoor toluene at low concentrations significantly impacts orienting network.

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室内低浓度暴露甲苯对定向网络的影响

目标。目的是探讨室内甲苯暴露对定向网络的影响及其机制。方法。22名健康成人分别暴露于0 ppb、17.5 ppb、35 ppb和70 ppb的甲苯中4小时。所有被试均进行注意网络行为测试，同时记录脑电图活动。利用直接变换函数(DTF)方法计算了定向网络的因果联系强度。比较四组间定向网络的DTF值。结果。(1) 70 ppb条件下顶叶流出量DTF值(DTF_outflow)分别高于0、17.5和35 ppb条件下的DTF值。(2) 70 ppb甲苯条件下DTFCZ-FZ和DTFCZ-FP2值低于0 ppb甲苯条件下。70 ppb条件下DTFCZ-FP2值低于17.5 ppb条件下。此外，70 ppb条件下DTFP3-FP2、DTFP4-FP1和DTFP4-FZ值高于0 ppb条件下的DTFP3-FP2值。70 ppb条件下DTFP3-FP2值高于17.5 ppb条件下的DTFP3-FP2值。与17.5和35 ppb条件相比，70 ppb条件下的DTFP4-FP1值更高。结论。即使短期暴露于室内低浓度的甲苯也会显著影响定向网络。

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来源期刊

Indoor air 环境科学-工程：环境

CiteScore

10.80

自引率

10.30%

发文量

175

审稿时长

3 months

期刊介绍： The quality of the environment within buildings is a topic of major importance for public health. Indoor Air provides a location for reporting original research results in the broad area defined by the indoor environment of non-industrial buildings. An international journal with multidisciplinary content, Indoor Air publishes papers reflecting the broad categories of interest in this field: health effects; thermal comfort; monitoring and modelling; source characterization; ventilation and other environmental control techniques. The research results present the basic information to allow designers, building owners, and operators to provide a healthy and comfortable environment for building occupants, as well as giving medical practitioners information on how to deal with illnesses related to the indoor environment.