Residential Indoor and Outdoor PM Measured Using Low-cost Monitors during the Heating Season in Monroe County, NY

0559312 - ÚCHP 2023 RIV TW eng J - Journal Article
Ferro, A.R. - Zíková, Naděžda - Masiol, M. - Satsangi, G.P. - Twomey, T. - Chalupa, D.C. - Rich, D.Q. - Hopke, P.K.
Residential Indoor and Outdoor PM Measured Using Low-cost Monitors during the Heating Season in Monroe County, NY.
Aerosol and Air Quality Research. Roč. 22, č. 9 (2022), č. článku 220210. ISSN 1680-8584. E-ISSN 2071-1409
Grant - others:NYSERDA(US) 63040
Institutional support: RVO:67985858
Keywords : residential PM * indoor aerosol * indoor-outdoor relationship
OECD category: Meteorology and atmospheric sciences
Impact factor: 4, year: 2022
Method of publishing: Open access
https://aaqr.org/articles/aaqr-22-05-oa-0210.pdf

Continuous 1-minute indoor and outdoor PM concentrations (~PM2.5) were measured from November through April of 2015/16 and 2016/17 at 50 single family residences in Monroe County, NY (25 per season) using Speck (Airviz Inc., Pittsburgh, PA) low-cost monitors (LCMs). While the accuracy of LCMs is inconsistent and source dependent, the LCMs provided reasonable precision for estimating indoor/outdoor (I/O) ratios based on laboratory and field testing, understanding the relationship between indoor sources and concentration, and comparing PM concentrations across residences for the detected size range (0.5-3 mm). The indoor PM2.5 concentration pattern showed clear morning and evening peaks as well as higher indoor concentrations during the weekends when people are typically at home. The mean I/O PM2.5 ratio was 1.1 for all homes and increased to 1.7 when a combustion source was in use as indicated by an elevated CO concentration whereas most prior studies have found this ratio to be < 1. Increases in wood-burning appliance temperature and indoor CO concentrations were found to be associated with an overall moderate (mean value of 2.1 µg/m3) increase in indoor PM concentration averaged over the heating season. Short-term PM increases greater than 100 µg/m3 were periodically observed in homes with and without wood-burning appliances operating. This study provides an approach for exposure assessment in homes that can be utilized by employing appropriate calibration and quality assurance procedures for the LCMs.
Permanent Link: https://hdl.handle.net/11104/0332637