Quantifying the association between pregnancy exposure to biomass-attributable PM2.5 and the risk of preterm birth and stillbirth: A case-control study in Sydney, Australia for 2010–2020

Environmental Epidemiology, Год журнала: 2025, Номер 9(2), С. e381 - e381

Опубликована: Март 26, 2025

Biomass combustion, including wildfires and residential wood burning, is a significant source of particulate matter (PM 2.5 ) in Australia, with potentially distinct health effects due to its unique chemical composition. This study aimed quantify the association between exposure ambient biomass-attributable PM risk preterm birth stillbirth across pregnancy windows Sydney, from 2010 2020. We conducted case–control studies nested within cohort 578,391 singleton pregnancies, 29,954 births 2,928 stillbirths. Controls were randomly selected using risk-set sampling. Daily all-source estimates at 5 km resolution obtained previous study. Days exceeding 95th percentile statistical area level 4 without dust storm pollution classified as biomass-affected days. For these days, was estimated remainder component seasonal trend decomposition, components representing nonbiomass-attributable . Conditional logistic regressions used analyze associations outcomes, adjusting for area-level socioeconomic factors, temperature, humidity, temporal trends. The odds ratio per interquartile range increase 1.002 (95% CI = 0.997, 1.007) entire average exposure, similar null results trimesters. stillbirth, 0.985, 1.019) comparable findings These suggest that during may not or

Язык: Английский

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Comparative Assessment of Elemental Concentrations in Urban Tree Species and PM2.5 Emitted from Their Combustion

Atmosphere, Год журнала: 2025, Номер 16(4), С. 399 - 399

Опубликована: Март 30, 2025

This study examines the variations of elements in PM2.5 emitted from biomass burning urban settings, which raises health concerns among dwellers. It specifically focused on how Sodium (Na), Calcium (Ca), Potassium (K), and Phosphorus (P) concentrations tree combustibles affect their during combustion. Understanding these interactions is critical for evaluating air quality its public effects. Urban landscape coniferous broad-leaf species (branches leaves) were assessed, data processed using Microsoft Excel, Origin Pro 2024, R Studio. was discovered that organs had a common elemental concentration pattern (Ca > K P Na) but different PM2.5. Quantitatively, varied, with Ca being most abundant (69.85 mg/kg) least (3.97 mg/kg). In PM2.5, contrary observed, i.e., Na (which concentrated combustibles) became prominent; highest levels recorded conifers (Na = 0.86 Among assessed lowest all tests, having values (P 0.02 The SEM result further revealed that, quantitatively, does not necessarily mean they will be higher These highlighted importance considering species, organ types, when assessing impacts combustion human health.

Язык: Английский

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How Do Emission Factors Contribute to the Uncertainty in Biomass Burning Emissions in the Amazon and Cerrado?

Atmosphere, Год журнала: 2025, Номер 16(4), С. 423 - 423

Опубликована: Апрель 4, 2025

Fires drive global ecosystem change, impacting carbon dynamics, atmospheric composition, biodiversity, and human well-being. Biomass burning, a major outcome of fires, significantly contributes to greenhouse gas aerosol emissions. Among these, fine particulate matter (PM2.5) is particularly concerning due its adverse effects on air quality health, substantial yet uncertain role in Earth’s energy balance. Variability emission factors (EFs) remains key source uncertainty estimates. This study evaluates PM2.5 sensitivity EFs variability Brazil’s Amazon Cerrado biomes over 2002–2023 using the 3BEM_FRP model implemented PREP-CHEM-SRC tool. We updated with values ranges from Andreae (2019), which reflect more comprehensive literature review than earlier datasets. The results reveal that annual average emissions varied by up 162% (1213 Gg yr−1 3172 yr−1) 184% (601 1709 yr−1). Average peak at grid-cell level reached 5688 Mg “Arc Deforestation” region under High-end EF scenario. Notably, forest areas increased time despite shrinking cover, indicating Amazonian forests are becoming vulnerable fire. In Cerrado, savannas primary land cover contributing total emissions, accounting for 64% 80%. These findings underscore importance accurate, region-specific improving models reducing uncertainties.

Язык: Английский

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Assessing environmental impacts of bioenergy: Insights from a global perspective

Renewable Energy, Год журнала: 2025, Номер unknown, С. 123115 - 123115

Опубликована: Апрель 1, 2025

Язык: Английский

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A full-scale staged, pressurized oxy-biomass combustion towards BECCS: Performance assessment via CFD approach

Energy, Год журнала: 2025, Номер unknown, С. 136262 - 136262

Опубликована: Апрель 1, 2025

Язык: Английский

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