Characterization of Pinus spp needles and evaluation of their potential use for energy

Muñiz, Graciela Inés Bolzón de; Lengowski, Elaine Cristina; Nisgoski, Silvana; Magalhaes, W. L. E.; Tanobe, Valcineide Oliveira de Andrade; Hansel, F. A.

doi:10.1590/01047760.201420021358

Cited by 13 publications

(5 citation statements)

References 3 publications

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“…In order to validate EFs estimated from the tube furnace in the present study, EFs for CO,

, and PM were compared with the published EFs from various fuel combustion conditions (in-ground vs. aboveground biomass fuels). We also expressed EFs per

by using the heat energy (

) of each fuel burned, which was 21.70 for the red oak ( Ince 1979 ), 23.00 for the peat ( Morvay and Gvozdenac 2008 ), 11.96 for the pine needles ( de Muñiz et al 2014 ), 20.00 for the pine ( Nielson et al 1985 ), and 19.25 for the eucalyptus ( de Muñiz et al 2014 ).…”

Section: Methodsmentioning

confidence: 99%

Mutagenicity and Lung Toxicity of Smoldering vs. Flaming Emissions from Various Biomass Fuels: Implications for Health Effects from Wildland Fires

Kim

Warren

Krantz

et al. 2018

Environ Health Perspect

157

189

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Background:The increasing size and frequency of wildland fires are leading to greater potential for cardiopulmonary disease and cancer in exposed populations; however, little is known about how the types of fuel and combustion phases affect these adverse outcomes.Objectives:We evaluated the mutagenicity and lung toxicity of particulate matter (PM) from flaming vs. smoldering phases of five biomass fuels, and compared results by equal mass or emission factors (EFs) derived from amount of fuel consumed.Methods:A quartz-tube furnace coupled to a multistage cryotrap was employed to collect smoke condensate from flaming and smoldering combustion of red oak, peat, pine needles, pine, and eucalyptus. Samples were analyzed chemically and assessed for acute lung toxicity in mice and mutagenicity in Salmonella.Results:The average combustion efficiency was 73 and 98% for the smoldering and flaming phases, respectively. On an equal mass basis, PM from eucalyptus and peat burned under flaming conditions induced significant lung toxicity potencies (neutrophil/mass of PM) compared to smoldering PM, whereas high levels of mutagenicity potencies were observed for flaming pine and peat PM compared to smoldering PM. When effects were adjusted for EF, the smoldering eucalyptus PM had the highest lung toxicity EF (neutrophil/mass of fuel burned), whereas smoldering pine and pine needles had the highest mutagenicity EF. These latter values were approximately 5, 10, and 30 times greater than those reported for open burning of agricultural plastic, woodburning cookstoves, and some municipal waste combustors, respectively.Conclusions:PM from different fuels and combustion phases have appreciable differences in lung toxic and mutagenic potency, and on a mass basis, flaming samples are more active, whereas smoldering samples have greater effect when EFs are taken into account. Knowledge of the differential toxicity of biomass emissions will contribute to more accurate hazard assessment of biomass smoke exposures. https://doi.org/10.1289/EHP2200

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“…In order to validate EFs estimated from the tube furnace in the present study, EFs for CO,

, and PM were compared with the published EFs from various fuel combustion conditions (in-ground vs. aboveground biomass fuels). We also expressed EFs per

by using the heat energy (

Section: Methodsmentioning

confidence: 99%

Mutagenicity and Lung Toxicity of Smoldering vs. Flaming Emissions from Various Biomass Fuels: Implications for Health Effects from Wildland Fires

Kim

Warren

Krantz

et al. 2018

Environ Health Perspect

157

189

View full text Add to dashboard Cite

show abstract

“…The obtained data (table 3) shows that the cultivation conditions had significant effect only on vascular bundle thickness and stomata density, when the open field gave the more effective result of vascular bundle thickness (45.000um), and the more stomata density (84.333.mm -2 ) was recorded under 50% shade (lath house). However, table (4) shows significant effects of studied organic fertilizers on mesophyll thickness and stomata density, the most significant value of the mesophyll (32.333.mm -2 ) was obtained in the control without significant differences with compost treatment. While, it was observed highest significant increase in stomata density with Bamboo biochar application (94.333um) and local compost treatment gave the lowest value (49.500 um) compared to the treatment.…”

Section: -1 Needle Anatomymentioning

confidence: 89%

Effect of two organic fertilizers on some anatomical features of Pinus pinea L. seedlings grown in field and lathe house

Mohammad

Kanimarani

2021

ZJPAS

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“…Isto causa a redução do PCL e uniformidade do mesmo entre os diferentes componentes. Já o maior PCS para acículas e cascas pode ser explicado pelo maior teor de lignina (na casca) e extrativos (resina) presentes nos mesmos (MUÑIZ et al, 2014). Este comportamento foi semelhante para a idade de 14 anos, no qual a casca apresentou os maiores valores de PCS e PCL e menor valor para o TU, não diferindo significativamente apenas das acículas em relação ao PCS (Tabela 2).…”

Section: Discussionunclassified

QUALIFICAÇÃO DA BIOMASSA EM POVOAMENTOS FLORESTAIS DE Pinus taeda

Ferreira¹,

Stähelin²,

Valin³

et al. 2016

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O uso múltiplo das florestas plantadas pode aumentar a disponibilidade da biomassa destinada a sistemas de geração de energia. Para intensificar o potencial energético dessa fonte é necessário controlar propriedades como o teor de umidade e poder calorífico, que influem diretamente na capacidade energética do combustível. Neste contexto, o trabalho buscou avaliar a variação do teor de umidade e poder calorífico em acículas, galhos, copas e cascas de Pinus taeda em diferentes idades; verificar a relação entre o teor de umidade e o poder calorífico líquido; e definir um modelo de regressão que melhor explique o comportamento do poder calorífico líquido. Para a análise foi aplicado um delineamento experimental inteiramente casualizado, com arranjo fatorial contendo quatro componentes de árvores em quatro idades de Pinus taeda. Nos resultados, o modelo selecionado apresentou apenas o teor de umidade como variável independente; observou-se elevada correlação negativa entre teor de umidade e poder calorífico líquido, além de diferença significativa destas variáveis para todos os componentes e idades. As cascas em diferentes idades e galhos a partir dos 14 anos de idade são os componentes mais indicados para geração de energia.

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Characterization of Pinus spp needles and evaluation of their potential use for energy

Cited by 13 publications

References 3 publications

Mutagenicity and Lung Toxicity of Smoldering vs. Flaming Emissions from Various Biomass Fuels: Implications for Health Effects from Wildland Fires

Mutagenicity and Lung Toxicity of Smoldering vs. Flaming Emissions from Various Biomass Fuels: Implications for Health Effects from Wildland Fires

Effect of two organic fertilizers on some anatomical features of Pinus pinea L. seedlings grown in field and lathe house

QUALIFICAÇÃO DA BIOMASSA EM POVOAMENTOS FLORESTAIS DE Pinus taeda

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