Academic Journal

Impact of Outdoor Air Pollution on Indoor Air Quality in Low-Income Homes during Wildfire Seasons

التفاصيل البيبلوغرافية
العنوان: Impact of Outdoor Air Pollution on Indoor Air Quality in Low-Income Homes during Wildfire Seasons
المؤلفون: Prateek M. Shrestha, Jamie L. Humphrey, Elizabeth J. Carlton, John L. Adgate, Kelsey E. Barton, Elisabeth D. Root, Shelly L. Miller
المصدر: International Journal of Environmental Research and Public Health; Volume 16; Issue 19; Pages: 3535
بيانات النشر: Multidisciplinary Digital Publishing Institute
سنة النشر: 2019
المجموعة: MDPI Open Access Publishing
مصطلحات موضوعية: low-cost sensors, black carbon, PM 2.5, infiltration, energy efficiency, traffic-related air pollution, wildfire smoke
جغرافية الموضوع: agris
الوصف: Indoor and outdoor number concentrations of fine particulate matter (PM2.5), black carbon (BC), carbon monoxide (CO), and nitrogen dioxide (NO2) were monitored continuously for two to seven days in 28 low-income homes in Denver, Colorado, during the 2016 and 2017 wildfire seasons. In the absence of indoor sources, all outdoor pollutant concentrations were higher than indoors except for CO. Results showed that long-range wildfire plumes elevated median indoor PM2.5 concentrations by up to 4.6 times higher than outdoors. BC, CO, and NO2 mass concentrations were higher indoors in homes closer to roadways compared to those further away. Four of the homes with mechanical ventilation systems had 18% higher indoor/outdoor (I/O) ratios of PM2.5 and 4% higher I/O ratios of BC compared to other homes. Homes with exhaust stove hoods had PM2.5 I/O ratios 49% less than the homes with recirculating hoods and 55% less than the homes with no stove hoods installed. Homes with windows open for more than 12 hours a day during sampling had indoor BC 2.4 times higher than homes with windows closed. This study provides evidence that long-range wildfire plumes, road proximity, and occupant behavior have a combined effect on indoor air quality in low-income homes.
نوع الوثيقة: text
وصف الملف: application/pdf
اللغة: English
Relation: Environmental Science and Engineering; https://dx.doi.org/10.3390/ijerph16193535
DOI: 10.3390/ijerph16193535
الاتاحة: https://doi.org/10.3390/ijerph16193535
Rights: https://creativecommons.org/licenses/by/4.0/
رقم الانضمام: edsbas.5B787088
قاعدة البيانات: BASE