Significant Cross-Contamination Caused by Cooking Fume Transport between Dwelling Units in Multilayer Buildings DOI

Xiaoqiao Jiao,

Li Zhou,

Wangchao Zhao

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Май 8, 2025

Cross-contamination in multiunit residential buildings is an inevitable but poorly studied issue. We conducted a 2-month monitoring campaign multilayer building, identifying 53 interunit kitchen exhaust transmission events (∼2 per day), causing enhanced exposure of particulate matters (PM), black carbon (BC), NOx, and CO volatile organic compounds (VOCs) both the living room. These resulted 40-80% increase PM deposition respiratory systems for occupants room, especially fine particles depositing alveolar region. Evidence indicates that these pollutant originated from cooking fume transport. The geometric mean diameter decreased 76 nm during background periods to 62 transport events, consistent with smaller activities. Furthermore, 30 cooking-related VOCs were identified as indicators, including hazardous species such aldehydes. confirmed leakage through shared duct led cross-contamination, which can be effectively mitigated by using hoods, air cleaners, or opening windows mealtimes. This research provides first quantitative assessment emission between dwellings housing, highlighting significant impact cross-contamination high-density environments.

Язык: Английский

Significant Cross-Contamination Caused by Cooking Fume Transport between Dwelling Units in Multilayer Buildings DOI

Xiaoqiao Jiao,

Li Zhou,

Wangchao Zhao

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Май 8, 2025

Cross-contamination in multiunit residential buildings is an inevitable but poorly studied issue. We conducted a 2-month monitoring campaign multilayer building, identifying 53 interunit kitchen exhaust transmission events (∼2 per day), causing enhanced exposure of particulate matters (PM), black carbon (BC), NOx, and CO volatile organic compounds (VOCs) both the living room. These resulted 40-80% increase PM deposition respiratory systems for occupants room, especially fine particles depositing alveolar region. Evidence indicates that these pollutant originated from cooking fume transport. The geometric mean diameter decreased 76 nm during background periods to 62 transport events, consistent with smaller activities. Furthermore, 30 cooking-related VOCs were identified as indicators, including hazardous species such aldehydes. confirmed leakage through shared duct led cross-contamination, which can be effectively mitigated by using hoods, air cleaners, or opening windows mealtimes. This research provides first quantitative assessment emission between dwellings housing, highlighting significant impact cross-contamination high-density environments.

Язык: Английский

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