TY - JOUR
T1 - Acute health effects from exposure to indoor ultrafine particles—A randomized controlled crossover study among young mild asthmatics
AU - Laursen, Karin Rosenkilde
AU - Rasmussen, Berit Brøndum
AU - Rosati, Bernadette
AU - Gutzke, Vibeke Heitmann
AU - Østergaard, Kirsten
AU - Ravn, Peter
AU - Kjærgaard, Søren Kenneth
AU - Bilde, Merete
AU - Glasius, Marianne
AU - Sigsgaard, Torben
PY - 2021/11
Y1 - 2021/11
N2 - Particulate matter is linked to adverse health effects, however, little is known about health effects of particles emitted from typical indoor sources. We examined acute health effects of short-term exposure to emissions from cooking and candles among asthmatics. In a randomized controlled double-blinded crossover study, 36 young non-smoking asthmatics attended three exposure sessions lasting 5 h: (a) air mixed with emissions from cooking (fine particle mass concentration): (PM2.5: 96.1 μg/m3), (b) air mixed with emissions from candles (PM2.5: 89.8 μg/m3), and c) clean filtered air (PM2.5: 5.8 μg/m3). Health effects (spirometry, fractional exhaled Nitric Oxide [FeNO], nasal volume and self-reported symptoms) were evaluated before exposure start, then 5 and 24 h after. During exposures volatile organic compounds (VOCs), particle size distributions, number concentrations and optical properties were measured. Generally, no statistically significant changes were observed in spirometry, FeNO, or nasal volume comparing cooking and candle exposures to clean air. In males, nasal volume and FeNO decreased after exposure to cooking and candles, respectively. Participants reported additional and more pronounced symptoms during exposure to cooking and candles compared to clean air. The results indicate that emissions from cooking and candles exert mild inflammation in asthmatic males and decrease comfort among asthmatic males and females.
AB - Particulate matter is linked to adverse health effects, however, little is known about health effects of particles emitted from typical indoor sources. We examined acute health effects of short-term exposure to emissions from cooking and candles among asthmatics. In a randomized controlled double-blinded crossover study, 36 young non-smoking asthmatics attended three exposure sessions lasting 5 h: (a) air mixed with emissions from cooking (fine particle mass concentration): (PM2.5: 96.1 μg/m3), (b) air mixed with emissions from candles (PM2.5: 89.8 μg/m3), and c) clean filtered air (PM2.5: 5.8 μg/m3). Health effects (spirometry, fractional exhaled Nitric Oxide [FeNO], nasal volume and self-reported symptoms) were evaluated before exposure start, then 5 and 24 h after. During exposures volatile organic compounds (VOCs), particle size distributions, number concentrations and optical properties were measured. Generally, no statistically significant changes were observed in spirometry, FeNO, or nasal volume comparing cooking and candle exposures to clean air. In males, nasal volume and FeNO decreased after exposure to cooking and candles, respectively. Participants reported additional and more pronounced symptoms during exposure to cooking and candles compared to clean air. The results indicate that emissions from cooking and candles exert mild inflammation in asthmatic males and decrease comfort among asthmatic males and females.
KW - Indeklima
KW - Helbredseffekter
KW - Stegeos
KW - Stearinlys
KW - Velbefindende
KW - Ultrafine partikler
UR - http://www.scopus.com/inward/record.url?scp=85109369005&partnerID=8YFLogxK
U2 - 10.1111/ina.12902
DO - 10.1111/ina.12902
M3 - Journal article
C2 - 34235780
AN - SCOPUS:85109369005
SN - 0905-6947
VL - 31
SP - 1993
EP - 2007
JO - Indoor Air
JF - Indoor Air
IS - 6
ER -