Emissions during grilling with wood pellets and chips

The quality check of grilling wood pellets should be of a critical importance as smoke from their combustion has a direct contact with food, impacts human safety, and pollutes the atmosphere. Therefore, the main purpose of this study is to investigate the purity of grilling wood pellets and chips av...

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Autores principales:	Zbigniew Jelonek, Agnieszka Drobniak, Maria Mastalerz, Iwona Jelonek
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Wood pellets Grilling Reflected light microscopy Emissions Environmental pollution TD172-193.5 Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/b67cd56a9daa45c1947be17b89e4c5b4
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id	oai:doaj.org-article:b67cd56a9daa45c1947be17b89e4c5b4
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spelling	oai:doaj.org-article:b67cd56a9daa45c1947be17b89e4c5b42021-11-12T04:47:00ZEmissions during grilling with wood pellets and chips2590-162110.1016/j.aeaoa.2021.100140https://doaj.org/article/b67cd56a9daa45c1947be17b89e4c5b42021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S259016212100040Xhttps://doaj.org/toc/2590-1621The quality check of grilling wood pellets should be of a critical importance as smoke from their combustion has a direct contact with food, impacts human safety, and pollutes the atmosphere. Therefore, the main purpose of this study is to investigate the purity of grilling wood pellets and chips available on the market, analyze the properties of their combustion gases, and determine if a relationship between the fuel composition and emissions during grilling can be established.In this study, we investigated 45 types of BBQ wood pellets and wood chips available for purchase in the USA and Europe. Based on reflected light microscopy analysis, the samples are composed dominantly of biomass, ranging from 87.5 to 99.8 vol % for wood pellets and 96.5 to 99.1 vol % for wood chips, with the average impurities content of 1.7 vol % for wood pellets and 2.2 vol % for wood chips. The undesired components included bark, mineral matter, charcoal, coke, metal, rust, slag, and petroleum products.Our data show that grilling with wood pellets and chips leads to elevated emissions of particulate matter (PM), NO2, SO2, CO, CO2, and formaldehyde in comparison with recommended exposure limits. The average emissions of PM are higher from wood chips than from pellets by approximately 85 μg/m3, and they come mainly from PM2.5; the contribution from PM of 2.5–10 μm in size is rather insignificant. CO2 emissions, on average 2.67% from pellets and 2.27% from wood chips, were elevated comparing with a typical outdoor air level of 0.03–0.05% (300–500 ppm). The level of emissions of individual components also changes during the grilling cycle, and depends on the type of combusted wood, grilling conditions and fuel moisture content.Zbigniew JelonekAgnieszka DrobniakMaria MastalerzIwona JelonekElsevierarticleWood pelletsGrillingReflected light microscopyEmissionsEnvironmental pollutionTD172-193.5Meteorology. ClimatologyQC851-999ENAtmospheric Environment: X, Vol 12, Iss , Pp 100140- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Wood pellets Grilling Reflected light microscopy Emissions Environmental pollution TD172-193.5 Meteorology. Climatology QC851-999
spellingShingle	Wood pellets Grilling Reflected light microscopy Emissions Environmental pollution TD172-193.5 Meteorology. Climatology QC851-999 Zbigniew Jelonek Agnieszka Drobniak Maria Mastalerz Iwona Jelonek Emissions during grilling with wood pellets and chips
description	The quality check of grilling wood pellets should be of a critical importance as smoke from their combustion has a direct contact with food, impacts human safety, and pollutes the atmosphere. Therefore, the main purpose of this study is to investigate the purity of grilling wood pellets and chips available on the market, analyze the properties of their combustion gases, and determine if a relationship between the fuel composition and emissions during grilling can be established.In this study, we investigated 45 types of BBQ wood pellets and wood chips available for purchase in the USA and Europe. Based on reflected light microscopy analysis, the samples are composed dominantly of biomass, ranging from 87.5 to 99.8 vol % for wood pellets and 96.5 to 99.1 vol % for wood chips, with the average impurities content of 1.7 vol % for wood pellets and 2.2 vol % for wood chips. The undesired components included bark, mineral matter, charcoal, coke, metal, rust, slag, and petroleum products.Our data show that grilling with wood pellets and chips leads to elevated emissions of particulate matter (PM), NO2, SO2, CO, CO2, and formaldehyde in comparison with recommended exposure limits. The average emissions of PM are higher from wood chips than from pellets by approximately 85 μg/m3, and they come mainly from PM2.5; the contribution from PM of 2.5–10 μm in size is rather insignificant. CO2 emissions, on average 2.67% from pellets and 2.27% from wood chips, were elevated comparing with a typical outdoor air level of 0.03–0.05% (300–500 ppm). The level of emissions of individual components also changes during the grilling cycle, and depends on the type of combusted wood, grilling conditions and fuel moisture content.
format	article
author	Zbigniew Jelonek Agnieszka Drobniak Maria Mastalerz Iwona Jelonek
author_facet	Zbigniew Jelonek Agnieszka Drobniak Maria Mastalerz Iwona Jelonek
author_sort	Zbigniew Jelonek
title	Emissions during grilling with wood pellets and chips
title_short	Emissions during grilling with wood pellets and chips
title_full	Emissions during grilling with wood pellets and chips
title_fullStr	Emissions during grilling with wood pellets and chips
title_full_unstemmed	Emissions during grilling with wood pellets and chips
title_sort	emissions during grilling with wood pellets and chips
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b67cd56a9daa45c1947be17b89e4c5b4
work_keys_str_mv	AT zbigniewjelonek emissionsduringgrillingwithwoodpelletsandchips AT agnieszkadrobniak emissionsduringgrillingwithwoodpelletsandchips AT mariamastalerz emissionsduringgrillingwithwoodpelletsandchips AT iwonajelonek emissionsduringgrillingwithwoodpelletsandchips
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Emissions during grilling with wood pellets and chips

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