Centre for Natural Sciences, University of Pannonia, Egyetem street 10, Veszprém 8200, Hungary; School of Veterinary Medicine, Mongolian University of Life Sciences, Khan-Uul district, Zaisan, Ulaanbaatar 17042, Mongolia.
Centre for Natural Sciences, University of Pannonia, Egyetem street 10, Veszprém 8200, Hungary.
Environ Toxicol Pharmacol. 2024 Sep;110:104538. doi: 10.1016/j.etap.2024.104538. Epub 2024 Aug 17.
In Ulaanbaatar roughly 60 % of the population live in traditional Mongolian yurts in the so-called Ger districts of the city. Winter indoor air quality is a serious concern in these districts as about 98 % of households consume solid fossil fuel (mainly coal). In our study, indoor air quality was assessed based on PAHs analysis and ecotoxicity testing of 24-hour samples collected in 4 yurts. Three of the selected yurts were equipped with conventional while the fourth one with improved stoves. Analysis of PAHs profiles showed the prevalence of higher molecular weight PAHs in all yurts. Concentrations of the 5-ring benzo(b)fluoranthene and 6-ring benzo(g.h.i)perylene were extremely high in one yurt using conventional stove, 8430 µg g and 6320 µg g, respectively. Ecotoxicity of the samples was assessed using the kinetic version of the Vibrio fischeri bioluminescence inhibition bioassay. In concordance with PAHs concentrations, ecotoxicity was also the highest in that yurt.
在乌兰巴托，大约有 60%的居民居住在城市中所谓的“格日”区的传统蒙古包中。这些地区冬季室内空气质量是一个严重的问题，因为约 98%的家庭使用固体化石燃料（主要是煤）。在我们的研究中，根据 24 小时样本中多环芳烃（PAHs）的分析和生态毒性测试，评估了 4 个蒙古包的室内空气质量。所选的 3 个蒙古包配备了传统炉灶，而第 4 个蒙古包配备了改良炉灶。PAHs 分布分析显示，所有蒙古包中都存在高分子量 PAHs。在使用传统炉灶的一个蒙古包中，5 环苯并（b）荧蒽和 6 环苯并（g.h.i）苝的浓度极高，分别为 8430µg/g 和 6320µg/g。使用发光细菌抑制生物发光的动力学版本评估了样品的生态毒性。与 PAHs 浓度一致，该蒙古包的生态毒性也是最高的。
