Center for Preventive Medical Sciences, Chiba University, 6-2-1 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan.
National Institute of Occupational Safety and Health, 6-21-1 Nagao, Tama-ku, Kawasaki, 214-8585, Japan.
Int J Environ Res Public Health. 2019 Oct 28;16(21):4142. doi: 10.3390/ijerph16214142.
Recently, people have become increasingly aware of potential health issues related to indoor environments. In this study, we measure the concentrations of various volatile organic compounds, carbonyl compounds, and semi-volatile organic compounds, as well as the ventilation rates, in 49 new houses with light-gauge steel structures one week after completion. The proper indoor air quality of new residential environments can be ensured by characterizing people's exposure to certain chemicals and assessing future risks. Our results show that the concentrations of the measured compounds were lower than the guideline values set by the Ministry of Health, Labour and Welfare of Japan, and would continue to decrease. However, we observed that unregulated compounds, assumed to be substitutes for regulated solvents, contributed substantially to the total volatile organic compounds. To reduce indoor chemical exposure risks, the concentrations of these unregulated compounds should also be minimized. In addition, their sources need to be identified, and manufacture and use must be monitored. We believe it is important to select low-emission building materials for reducing residents' exposure to indoor chemicals.
近年来，人们越来越关注与室内环境相关的潜在健康问题。在这项研究中，我们测量了 49 栋轻钢结构新房在竣工后一周内的各种挥发性有机化合物、羰基化合物和半挥发性有机化合物的浓度以及通风率。通过描述人们接触某些化学物质的情况并评估未来的风险，可以确保新住宅环境具有适当的室内空气质量。我们的结果表明，所测量化合物的浓度低于日本厚生劳动省设定的指导值，并将继续下降。然而，我们观察到，未被监管的化合物（被认为是受监管溶剂的替代品）对总挥发性有机化合物的贡献很大。为了降低室内化学物质暴露的风险，也应尽量降低这些未被监管化合物的浓度。此外，还需要确定其来源，并对其制造和使用进行监测。我们认为，选择低排放建筑材料对于减少居民对室内化学物质的暴露非常重要。
