| 引用本文: | 王景芝，刘秀群，朱元彤，施丹倩，戴文婷，万倩茹，方欣，唐玲，
王泽东，王雨萌.2023.西安市新装修室内空气中醛酮类化合物的污染特征及健康效应[J].地球环境学报,14(5):639-648 |
| WANG Jingzhi, LIU Xiuqun, ZHU Yuantong, SHI Danqian, DAI Wenting, WAN Qianru, FANG Xin, TANG Ling, WANG Zedong, WANG Yumeng.2023.Characteristics and health effect of aldehyde and ketone compounds in newly decorated houses in Xi’an[J].Journal of Earth Environment,14(5):639-648 |
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| 摘要: |
| 室内空气质量与人体健康息息相关，为了解新装修室内大气中醛酮类化合物的污染特征及健康效应，实验对西安市三个不同装修材料及不同装修风格房间的大气环境开展研究。使用2,4-二硝基苯肼硅胶提取小柱（DNPH）进行采样，并采用高效液相色谱（high performance liquid chromatography，HPLC）对18种醛酮类物质进行检测，研究其污染水平及特征，并根据物质的光化学反应活性，计算其臭氧生成潜势（ozone formation potential，OPF），评估其对不同年龄段人群的非致癌和致癌健康效应。研究表明：（1）18种醛酮类物质在三个新装修房间空气样品中的总含量为79.9—194.4 μg·m−3，高于普通室内环境中的含量。且在供暖期含量显著增加，升高了23.9%—53.3%。其中丙酮、甲醛、乙醛、正壬醛是主要的污染物，其中丁酮在Room 2中显著高于其他两个房间。（2）甲醛和乙醛的光化学活性显著高于其他物质，因而对OPF贡献较大。丙酮虽然含量显著高于其他物质，但是由于光化学活性较低，对OPF贡献不显著。（3）乙醛超过了室内安全排放标准，且在Room 2和Room 3中的非致癌风险危险熵（hazard quotient，HQ）不容忽视。终身致癌风险评估（incremental lifetime cancer risks，ILCR）显示不同人群暴露甲醛的ILCR均大于1×10−6，存在潜在健康风险。人群暴露乙醛的ILCR值仅青少年和老年人在Room 1中低于1×10−6。由此可见新建住房室内空气中醛酮类物质的污染所产生的健康效应不能忽视。 |
| 关键词: 新建住房 室内 醛酮类化合物 特征 臭氧生成潜势 健康效应 |
| DOI：10.7515/JEE222065 |
| CSTR：32259.14.JEE222065 |
| 分类号: |
| 基金项目:中国科学院气溶胶化学与物理重点实验室开放基金（KLACP2003）；黄土与第四纪地质国家重点实验室开放基金（SKLLQG1829） |
| 英文基金项目:Open Fund of Key Laboratory of??Aerosol Chemistry and Physics, CAS (KLACP2003); Open Fund of State Key Laboratory of Loess and Quaternary Geology, CAS (SKLLQG1829) |
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| Characteristics and health effect of aldehyde and ketone compounds in newly decorated houses in Xi’an |
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WANG Jingzhi, LIU Xiuqun, ZHU Yuantong, SHI Danqian, DAI Wenting, WAN Qianru, FANG Xin, TANG Ling, WANG Zedong, WANG Yumeng
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1. School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
2. State Key Laboratory of Loess and Quaternary Geology, Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China
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| Abstract: |
| Background, aim, and scope Indoor air quality is solid associated with the human health. Aldehyde and ketone compounds are common in atmosphere and affect human health. In order to understand release of these compounds in new decorated house, three rooms with different decoration styles and different materials were selected to detect these compounds. The plant adsorption, black carbon adsorption and air ventilation were compared to remove these compounds. Materials and methods In this study, 2,4-dinitrophenylhydraziine (DNPH) was used to sample collect and high performance liquid chromatography (HPLC) to monitor 18 aldehydes and ketones. Results The compounds levels and characteristics were investigated. Basing on the chemical reaction reactivity, the ozone formation potential (OFP) was calculated, and the contributions of each compounds were discussed. Meantime, the health risks for human exposure to formaldehyde and acetaldehyde were assessed. Discussion The total concentrations of 18 VOCs were from 79.9 to 194.4 μg·m−3. It indicated that relative higher concentrations of aldehyde and ketone compounds were obtained during the heating time, increased by 23.9% to 53.3%. Acetone, formaldehyde, and acetaldehyde were the main pollutants. With the high chemical reaction reactivity, the contribution of formaldehyde, and acetaldehyde to OPF were higher than the other compounds. The acetaldehyde was exceeding the safety values, and the non-carcinogenic risk for acetaldehyde, which was represented by HQ in Room 2 and 3 were relative high, even though lower than 1. The incremental lifetime cancer risks (ILCR) of formaldehyde for all group people were higher than 1×10−6, which indicating potential health risks. The ILCR for acetaldehyde were almost, except adolescent and senior, higher than 1×10−6. Conclusions The 18 VOCs in new decorating rooms were higher than the normal indoor air. It is harmful to live in the newly decorated rooms. Recommendations and perspectives The repeat samples need to be collected in one room to insure the accuracy of the detection. More researches need to be done about the indoor air quality and human health. |
| Key words: newly decorated house indoor aldehyde and ketone compounds characteristics ozone formation
potential (OFP) health effect |
