Characterization and dark oxidation of the emissions of a pellet stove

Florou, Kalliopi; Kodros, John K.; Paglione, Marco; Jorga, Spiro D.; Squizzato, Stefania; Masiol, Mauro; Uruci, Petro; Nenes, Athanasios; Pandis, Spyros Ν.

doi:10.1039/d3ea00070b

Cited by 3 publications

(1 citation statement)

References 91 publications

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“…Indoor emissions from burning wood are especially important in Fairbanks since wood is widely utilized for heating and can be a source of oxidative products . For example, pellet stoves can emit large amounts of fine particles and high levels of CO and polycyclic aromatic hydrocarbons (PAHs), especially in the ignition phase when combustion efficiency is low. , Cooking is another major source of indoor aerosols, which can emit fatty acids and dicarboxylic acids, , as well as combustion products if burning occurs.…”

Section: Introductionmentioning

confidence: 99%

Indoor–Outdoor Oxidative Potential of PM_2.5 in Wintertime Fairbanks, Alaska: Impact of Air Infiltration and Indoor Activities

Yang,

Battaglia,

Robinson

et al. 2024

ACS EST Air

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The indoor air quality of a residential home during winter in Fairbanks, Alaska, was investigated and contrasted with outdoor levels. Twenty-four-hour average indoor and outdoor filter samples were collected from January 17 to February 25, 2022, in a residential area with high outdoor PM 2.5 concentrations. The oxidative potential of PM 2.5 was determined using the dithiothreitol-depletion assay (OP DTT ). For the unoccupied house, the background indoor-to-outdoor (I/O) ratio of massnormalized OP (OP m DTT ), a measure of the intrinsic healthrelevant properties of the aerosol, was less than 1 (0.53 ± 0.37), implying a loss of aerosol toxicity as air was transported indoors. This may result from transport and volatility losses driven by the large gradients in temperature (average outdoor temperature of −19°C/average indoor temperature of 21 °C) or relative humidity (average outdoor RH of 78%/average indoor RH of 11%), or both. Various indoor activities, including pellet stove use, simple cooking experiments, incense burning, and mixtures of these activities, were conducted. The experiments produced PM 2.5 with a highly variable OP m DTT . PM 2.5 from cooking emissions had the lowest OP values, while pellet stove PM 2.5 had the highest. Correlations between volume-normalized OP DTT (OP v DTT ), relevant to exposure, and indoor PM 2.5 mass concentration during experiments were much lower compared to those in outdoor environments. This suggests that mass concentration alone can be a poor indicator of possible adverse effects of various indoor emissions. These findings highlight the importance of considering both the quantity of particles and sources (chemical composition), as health metrics for indoor air quality.

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Section: Introductionmentioning

confidence: 99%

Indoor–Outdoor Oxidative Potential of PM_2.5 in Wintertime Fairbanks, Alaska: Impact of Air Infiltration and Indoor Activities

Yang,

Battaglia,

Robinson

et al. 2024

ACS EST Air

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A coupled atmospheric simulation chamber system for the production of realistic aerosols and preclinical model exposure

Georgopoulou,

Macias Rodriguez,

Yegen

et al. 2024

Air Qual Atmos Health

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Chemical evolution of primary and secondary biomass burning aerosols during daytime and nighttime

et al. 2023

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Abstract. Primary emissions from wood and pellet stoves were aged in an atmospheric simulation chamber under daytime and nighttime conditions. The aerosol was analyzed with online aerosol mass spectrometry and offline Fourier transform infrared spectroscopy (FTIR). Measurements using the two techniques agreed reasonably well in terms of the organic aerosol (OA) mass concentration, OA:OC trends, and concentrations of biomass burning markers – lignin-like compounds and anhydrosugars. Based on aerosol mass spectrometry, around 15 % of the primary organic aerosol (POA) mass underwent some form of transformation during daytime oxidation conditions after 6–10 h of atmospheric exposure. A lesser extent of transformation was observed during the nighttime oxidation. The decay of certain semi-volatile (e.g., levoglucosan) and less volatile (e.g., lignin-like) POA components was substantial during aging, highlighting the role of heterogeneous reactions and gas–particle partitioning. Lignin-like compounds were observed to degrade under both daytime and nighttime conditions, whereas anhydrosugars degraded only under daytime conditions. Among the marker mass fragments of primary biomass burning OA (bbPOA), heavy ones (higher m/z) were relatively more stable during aging. The biomass burning secondary OA (bbSOA) became more oxidized with continued aging and resembled that of aged atmospheric organic aerosols. The bbSOA formed during daytime oxidation was dominated by acids. Organonitrates were an important product of nighttime reactions in both humid and dry conditions. Our results underline the importance of changes to both the primary and secondary biomass burning aerosols during their atmospheric aging. Heavier fragments from aerosol mass spectrometry seldom used in atmospheric chemistry can be used as more stable tracers of bbPOA and, in combination with the established levoglucosan marker, can provide an indication of the extent of bbPOA aging.

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Characterization and dark oxidation of the emissions of a pellet stove

Abstract: Pellet combustion in residential heating stoves has increased globally during the last decade. Despite their high combustion efficiency, the widespread use of pellet stoves is expected to adversely impact air...

Cited by 3 publications

References 91 publications

Indoor–Outdoor Oxidative Potential of PM_2.5 in Wintertime Fairbanks, Alaska: Impact of Air Infiltration and Indoor Activities

Indoor–Outdoor Oxidative Potential of PM_2.5 in Wintertime Fairbanks, Alaska: Impact of Air Infiltration and Indoor Activities

A coupled atmospheric simulation chamber system for the production of realistic aerosols and preclinical model exposure

Chemical evolution of primary and secondary biomass burning aerosols during daytime and nighttime

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Characterization and dark oxidation of the emissions of a pellet stove

Abstract: Pellet combustion in residential heating stoves has increased globally during the last decade. Despite their high combustion efficiency, the widespread use of pellet stoves is expected to adversely impact air...

Cited by 3 publications

References 91 publications

Indoor–Outdoor Oxidative Potential of PM2.5 in Wintertime Fairbanks, Alaska: Impact of Air Infiltration and Indoor Activities

Indoor–Outdoor Oxidative Potential of PM2.5 in Wintertime Fairbanks, Alaska: Impact of Air Infiltration and Indoor Activities

A coupled atmospheric simulation chamber system for the production of realistic aerosols and preclinical model exposure

Chemical evolution of primary and secondary biomass burning aerosols during daytime and nighttime

Contact Info

Product

Resources

About

Indoor–Outdoor Oxidative Potential of PM_2.5 in Wintertime Fairbanks, Alaska: Impact of Air Infiltration and Indoor Activities

Indoor–Outdoor Oxidative Potential of PM_2.5 in Wintertime Fairbanks, Alaska: Impact of Air Infiltration and Indoor Activities