keyword
https://read.qxmd.com/read/38482267/assessing-the-oxidative-potential-of-outdoor-pm-2-5-in-wintertime-fairbanks-alaska
#1
JOURNAL ARTICLE
Yuhan Yang, Michael A Battaglia, Magesh Kumaran Mohan, Ellis S Robinson, Peter F DeCarlo, Kasey C Edwards, Ting Fang, Sukriti Kapur, Manabu Shiraiwa, Meeta Cesler-Maloney, William R Simpson, James R Campbell, Athanasios Nenes, Jingqiu Mao, Rodney J Weber
The oxidative potential (OP) of outdoor PM2.5 in wintertime Fairbanks, Alaska, is investigated and compared to those in wintertime Atlanta and Los Angeles. Approximately 40 filter samples collected in January-February 2022 at a Fairbanks residential site were analyzed for OP utilizing dithiothreitol-depletion (OPDTT ) and hydroxyl-generation (OPOH ) assays. The study-average PM2.5 mass concentration was 12.8 μg/m3 , with a 1 h average maximum of 89.0 μg/m3 . Regression analysis, correlations with source tracers, and contrast between cold and warmer events indicated that OPDTT was mainly sensitive to copper, elemental carbon, and organic aerosol from residential wood burning, and OPOH to iron and organic aerosol from vehicles...
March 8, 2024: ACS EST Air
https://read.qxmd.com/read/38426826/indoor-air-sources-of-outdoor-air-pollution-health-consequences-policy-and-recommendations-an-official-american-thoracic-society-workshop-report
#2
JOURNAL ARTICLE
Nicholas J Nassikas, Meredith C McCormack, Gary Ewart, John R Balmes, Tami C Bond, Emily Brigham, Kevin Cromar, Allen H Goldstein, Anne Hicks, Philip K Hopke, Brittany Meyer, William W Nazaroff, Laura M Paulin, Mary B Rice, George D Thurston, Barbara J Turpin, Marina E Vance, Charles J Weschler, Junfeng Zhang, Howard M Kipen
Indoor sources of air pollution worsen indoor and outdoor air quality. Thus, identifying and reducing indoor pollutant sources would decrease both indoor and outdoor air pollution, benefit public health, and help address the climate crisis. As outdoor sources come under regulatory control, unregulated indoor sources become a rising percentage of the problem. This American Thoracic Society workshop was convened in 2022 to evaluate this increasing proportion of indoor contributions to outdoor air quality. The workshop was conducted by physicians and scientists, including atmospheric and aerosol scientists, environmental engineers, toxicologists, epidemiologists, regulatory policy experts, and pediatric and adult pulmonologists...
March 2024: Annals of the American Thoracic Society
https://read.qxmd.com/read/38375293/self-reported-health-impacts-of-do-it-yourself-air-cleaner-use-in-a-smoke-impacted-community
#3
JOURNAL ARTICLE
Mallory W Turner, Pradeep Prathibha, Amara Holder, Ana G Rappold, Beth Hassett-Sipple, Brian McCaughey, Linda Wei, Andrea Davis, Kathryn Vinsonhaler, Amber Batchelder, Julia Carlstad, Ann N Chelminski
BACKGROUND: Smoke exposure from wildfires or residential wood burning for heat is a public health problem for many communities. Do-It-Yourself (DIY) portable air cleaners (PACs) are promoted as affordable alternatives to commercial PACs, but evidence of their effect on health outcomes is limited. OBJECTIVE: Pilot test an evaluation of the effect of DIY PAC usage on self-reported symptoms, and investigate barriers and facilitators of PAC use, among members of a tribal community that routinely experiences elevated concentrations of fine particulate matter (PM2...
February 29, 2024: Heliyon
https://read.qxmd.com/read/38294651/particulate-polycyclic-aromatic-hydrocarbons-in-rural-households-burning-solid-fuels-in-xuanwei-county-southwest-china-occurrence-size-distribution-and-health-risks
#4
JOURNAL ARTICLE
Xinyu Han, Dingshuang Li, Wei Du, Jianwu Shi, Shuai Li, Yuqi Xie, Shihan Deng, Zhihao Wang, Senlin Tian, Ping Ning
The study is about the size distribution and health risks of polycyclic aromatic hydrocarbons (PAHs) in indoor environment of Xuanwei, Southwest China particle samples were collected by Anderson 8-stage impactor which was used to gather particle samples to nine size ranges. Size-segregated samples were collected in indoor from a rural village in Xuanwei during the non-heating and heating seasons. The results showed that the total concentrations of the indoor particulate matter (PM) were 757 ± 60 and 990 ± 78 μg/m3 in non-heating and heating seasons, respectively...
January 31, 2024: Environmental Science and Pollution Research International
https://read.qxmd.com/read/38280648/aerosolomics-based-approach-to-discover-source-molecular-markers-a-case-study-for-discriminating-residential-wood-heating-vs-garden-green-waste-burning-emission-sources
#5
JOURNAL ARTICLE
Camille Noblet, François Lestremau, Serge Collet, Claudine Chatellier, Jérôme Beaumont, Jean-Luc Besombes, Alexandre Albinet
Biomass burning is a significant source of particulate matter (PM) in ambient air and its accurate source apportionment is a major concern for air quality. The discrimination between residential wood heating (RWH) and garden green waste burning (GWB) particulate matter (PM) is rarely achieved. The objective of this work was to evaluate the potential of non-targeted screening (NTS) analyses using HRMS data to reveal discriminating potential molecular markers of both sources. Two residential wood combustion appliances (wood log stove and fireplace) were tested under different output conditions and wood moisture content...
January 25, 2024: Chemosphere
https://read.qxmd.com/read/38232850/source-apportionment-of-fine-and-ultrafine-particle-number-concentrations-in-a-major-city-of-the-eastern-mediterranean
#6
JOURNAL ARTICLE
Panayiotis Kalkavouras, Georgios Grivas, Iasonas Stavroulas, Kalliopi Petrinoli, Aikaterini Bougiatioti, Eleni Liakakou, Evangelos Gerasopoulos, Nikolaos Mihalopoulos
Ultrafine particles (UFP) are recognized as an emerging pollutant able to induce serious health effects. However, quantitative information regarding the contributions of UFP sources is generally limited. This study evaluates statistical (k-means clustering) and receptor models (Positive Matrix Factorization - PMF) using particle number size distributions (PNSD), along with chemical speciation data, measured at an urban background supersite in Athens, Greece, aiming to characterize their sources. PNSD measurements (10-487 nm) were performed during three distinct periods (warm, cold, and lockdown cold)...
January 15, 2024: Science of the Total Environment
https://read.qxmd.com/read/37976408/development-of-spatio-temporal-land-use-regression-models-for-fine-particulate-matter-and-wood-burning-tracers-in-temuco-chile
#7
JOURNAL ARTICLE
María Elisa Quinteros, Carola Blazquez, Salvador Ayala, Dylan Kilby, Juan Pablo Cárdenas-R, Ximena Ossa, Felipe Rosas-Diaz, Elizabeth A Stone, Estela Blanco, Juana-María Delgado-Saborit, Roy M Harrison, Pablo Ruiz-Rudolph
Biomass burning is common in much of the world, and in some areas, residential wood-burning has increased. However, air pollution resulting from biomass burning is an important public health problem. A sampling campaign was carried out between May 2017 and July 2018 in over 64 sites in four sessions, to develop a spatio-temporal land use regression (LUR) model for fine particulate matter (PM) and wood-burning tracers levoglucosan and soluble potassium (Ksol ) in a city heavily impacted by wood-burning. The mean (sd) was 46...
November 17, 2023: Environmental Science & Technology
https://read.qxmd.com/read/37848612/application-of-artificial-intelligence-in-quantifying-lung-deposition-dose-of-black-carbon-in-people-with-exposure-to-ambient-combustion-particles
#8
JOURNAL ARTICLE
Menghui Jiang, Chelin Jamie Hu, Cassie L Rowe, Huining Kang, Xi Gong, Christopher P Dagucon, Jialiang Wang, Yan Lin, Akshay Sood, Yan Guo, Yiliang Zhu, Neil E Alexis, Frank D Gilliland, Steven A Belinsky, Xiaozhong Yu, Shuguang Leng
BACKGROUND: Understanding lung deposition dose of black carbon is critical to fully reconcile epidemiological evidence of combustion particles induced health effects and inform the development of air quality metrics concerning black carbon. Macrophage carbon load (MaCL) is a novel cytology method that quantifies lung deposition dose of black carbon, however it has limited feasibility in large-scale epidemiological study due to the labor-intensive manual counting. OBJECTIVE: To assess the association between MaCL and episodic elevation of combustion particles; to develop artificial intelligence based counting algorithm for MaCL assay...
October 17, 2023: Journal of Exposure Science & Environmental Epidemiology
https://read.qxmd.com/read/37756014/low-cost-particulate-matter-sensors-for-monitoring-residential-wood-burning
#9
JOURNAL ARTICLE
Amirhossein Hassani, Philipp Schneider, Matthias Vogt, Núria Castell
Conventional monitoring systems for air quality, such as reference stations, provide reliable pollution data in urban settings but only at relatively low spatial density. This study explores the potential of low-cost sensor systems (LCSs) deployed at homes of residents to enhance the monitoring of urban air pollution caused by residential wood burning. We established a network of 28 Airly (Airly-GSM-1, SP. Z o.o., Poland) LCSs in Kristiansand, Norway, over two winters (2021-2022). To assess performance, a gravimetric Kleinfiltergerät measured the fine particle mass concentration (PM2...
September 27, 2023: Environmental Science & Technology
https://read.qxmd.com/read/37747327/dynamic-changes-of-composition-of-particulate-matter-emissions-during-residential-biomass-combustion
#10
JOURNAL ARTICLE
Peng Chen, Youxuan Li, Yangmei Zhang, Chunyu Xue, Philip K Hopke, Xinghua Li
Residential biomass combustion in developing countries produces significant primary particulate matter (PM) emissions. Highly time-resolved aerosol mass spectrometry and aethalometer measurements were used to investigate the dynamic changes of emitted PM chemical composition from a typical improved stove burning with wood and crop straw in China. Combustion temperature and organic aerosol (OA) concentration increased quickly during the ignition stage. The flaming stage was characterized by high combustion temperature and high pollutant [including OA, black carbon (BC), inorganic salts, and polycyclic aromatic hydrocarbons (PAHs)] emissions, while the burnout stage is characterized by low combustion temperature and lower pollutant emissions...
September 25, 2023: Environmental Science & Technology
https://read.qxmd.com/read/37640072/emission-of-volatile-organic-compounds-from-residential-biomass-burning-and-their-rapid-chemical-transformations
#11
JOURNAL ARTICLE
Maximilien Desservettaz, Michael Pikridas, Iasonas Stavroulas, Aikaterini Bougiatioti, Eleni Liakakou, Nikolaos Hatzianastassiou, Jean Sciare, Nikolaos Mihalopoulos, Efstratios Bourtsoukidis
Biomass combustion releases a complex array of Volatile Organic Compounds (VOCs) that pose significant challenges to air quality and human health. Although biomass burning has been extensively studied at ecosystem levels, understanding the atmospheric transformation and impact on air quality of emissions in urban environments remains challenging due to complex sources and burning materials. In this study, we investigate the VOC emission rates and atmospheric chemical processing of predominantly wood burning emissions in a small urban centre in Greece...
August 26, 2023: Science of the Total Environment
https://read.qxmd.com/read/37545809/chronic-exposure-to-fine-particles-pm-2-5-and-mortality-evidence-from-chile
#12
JOURNAL ARTICLE
Pablo Busch, Luis Abdón Cifuentes, Camila Cabrera
UNLABELLED: Many Chilean cities suffer from high air pollution from industrial, mobile, and residential wood-burning sources. Several studies have linked PM2.5 air pollution exposure to higher mortality risk from cardiovascular, pulmonary, and lung cancer causes. In recent years, Chile has developed an extensive air pollution monitoring network to enforce air quality standards for PM2.5 , allowing the study of the medium-term association between PM2.5 and mortality. METHODS: A negative binomial regression model was used to study the association between 3-year average PM2...
August 2023: Environmental Epidemiology
https://read.qxmd.com/read/37149021/snapshots-of-wintertime-urban-aerosol-characteristics-local-sources-emphasized-in-ultrafine-particle-number-and-lung-deposited-surface-area
#13
JOURNAL ARTICLE
Teemu Lepistö, Luis M F Barreira, Aku Helin, Jarkko V Niemi, Niina Kuittinen, Henna Lintusaari, Ville Silvonen, Lassi Markkula, Hanna E Manninen, Hilkka Timonen, Pasi Jalava, Sanna Saarikoski, Topi Rönkkö
Urban air fine particles are a major health-relating problem. However, it is not well understood how the health-relevant features of fine particles should be monitored. Limitations of PM2.5 (mass concentration of sub 2.5 μm particles), which is commonly used in the health effect estimations, have been recognized and, e.g., World Health Organization (WHO) has released good practice statements for particle number (PN) and black carbon (BC) concentrations (2021). In this study, a characterization of urban wintertime aerosol was done in three environments: a detached housing area with residential wood combustion, traffic-influenced streets in a city centre and near an airport...
May 4, 2023: Environmental Research
https://read.qxmd.com/read/37100134/exposure-to-ambient-air-pollution-and-elevated-blood-levels-of-gamma-glutamyl-transferase-in-a-large-austrian-cohort
#14
JOURNAL ARTICLE
Jan Wirsching, Gabriele Nagel, Ming-Yi Tsai, Kees de Hoogh, Andrea Jaensch, Bernhard Anwander, Ranjeet S Sokhi, Hanno Ulmer, Emanuel Zitt, Hans Concin, Bert Brunekreef, Gerard Hoek, Gudrun Weinmayr
Gamma glutamyl transferase (GGT) is related to oxidative stress and an indicator for liver damage. We investigated the association between air pollution and GGT in a large Austrian cohort (N = 116,109) to better understand how air pollution affects human health. Data come from voluntary prevention visits that were routinely collected within the Vorarlberg Health Monitoring and Prevention Program (VHM&PP). Recruitment was ongoing from 1985 to 2005. Blood was drawn and GGT measured centralized in two laboratories...
April 24, 2023: Science of the Total Environment
https://read.qxmd.com/read/36976662/brown-coal-and-logwood-combustion-in-a-modern-heating-appliance-the-impact-of-combustion-quality-and-fuel-on-organic-aerosol-composition
#15
JOURNAL ARTICLE
Patrick Martens, Hendryk Czech, Jürgen Orasche, Gülcin Abbaszade, Martin Sklorz, Bernhard Michalke, Jarkko Tissari, Tine Bizjak, Mika Ihalainen, Heikki Suhonen, Pasi Yli-Pirilä, Jorma Jokiniemi, Olli Sippula, Ralf Zimmermann
Residential heating with solid fuels is one of the major drivers for poor air quality in Central and Eastern Europe, and coal is still one of the major fuels in countries, such as Poland, the Czech Republic, and Hungary. In this work, emissions from a single-room heater fueled with brown coal briquettes (BCBs) and spruce logs (SLs) were analyzed for signatures of inorganic as well as semivolatile aromatic and low-volatile organic constituents. High variations in organic carbon (OC) emissions of BCB emissions, ranging from 5 to 22 mg MJ-1 , were associated to variations in carbon monoxide (CO) emissions, ranging from 900 to 1900 mg MJ-1 ...
March 28, 2023: Environmental Science & Technology
https://read.qxmd.com/read/36923490/sleep-matters-neurodegeneration-spectrum-heterogeneity-combustion-and-friction-ultrafine-particles-industrial-nanoparticle-pollution-and-sleep-disorders-denial-is-not-an-option
#16
REVIEW
Lilian Calderón-Garcidueñas, Ricardo Torres-Jardón, Glen P Greenough, Randy Kulesza, Angélica González-Maciel, Rafael Reynoso-Robles, Griselda García-Alonso, Diana A Chávez-Franco, Edgar García-Rojas, Rafael Brito-Aguilar, Héctor G Silva-Pereyra, Alberto Ayala, Elijah W Stommel, Partha S Mukherjee
Sustained exposures to ubiquitous outdoor/indoor fine particulate matter (PM2.5 ), including combustion and friction ultrafine PM (UFPM) and industrial nanoparticles (NPs) starting in utero , are linked to early pediatric and young adulthood aberrant neural protein accumulation, including hyperphosphorylated tau (p-tau), beta-amyloid (Aβ1 - 42 ), α-synuclein (α syn) and TAR DNA-binding protein 43 (TDP-43), hallmarks of Alzheimer's (AD), Parkinson's disease (PD), frontotemporal lobar degeneration (FTLD), and amyotrophic lateral sclerosis (ALS)...
2023: Frontiers in Neurology
https://read.qxmd.com/read/36607741/reaction-of-hocl-with-wood-smoke-aerosol-impacts-on-indoor-air-quality-and-outdoor-reactive-chlorine
#17
JOURNAL ARTICLE
Spiro D Jorga, Yutong Wang, Jonathan P D Abbatt
High loadings of biomass burning (BB) aerosol particles from wildfire or residential heating sources can be present in both outdoor and indoor environments, where they deposit onto surfaces such as walls and furniture. These pollutants can interact with oxidants in both the aerosol and deposited forms. Hypochlorous acid (HOCl), a strong oxidant emitted during cleaning with chlorine-cleaning agents such as bleach, can attain mixing ratios of hundreds of ppbv indoors; moreover, lower mixing ratios are naturally present outdoors...
January 6, 2023: Environmental Science & Technology
https://read.qxmd.com/read/36427708/brown-carbon-absorption-and-radiative-effects-under-intense-residential-wood-burning-conditions-in-southeastern-europe-new-insights-into-the-abundance-and-absorptivity-of-methanol-soluble-organic-aerosols
#18
JOURNAL ARTICLE
D Paraskevopoulou, D G Kaskaoutis, G Grivas, S Bikkina, M Tsagkaraki, I M Vrettou, K Tavernaraki, K Papoutsidaki, I Stavroulas, E Liakakou, A Bougiatioti, K Oikonomou, E Gerasopoulos, N Mihalopoulos
Biomass burning is a major source of Brown Carbon (BrC), strongly contributing to radiative forcing. In urban areas of the climate-sensitive Southeastern European region, where strong emissions from residential wood burning (RWB) are reported, radiative impacts of carbonaceous aerosols remain largely unknown. This study examines the absorption properties of water- and methanol-soluble organic carbon (WSOC, MeS_OC) in a city (Ioannina, Greece) heavily impacted by RWB. Measurements were performed during winter (December 2019 - February 2020) and summer (July - August 2019) periods, characterized by RWB and photochemical processing of organic aerosol (OA), respectively...
November 22, 2022: Science of the Total Environment
https://read.qxmd.com/read/36257779/emission-characteristics-and-formation-mechanism-of-carbonyl-compounds-from-residential-solid-fuel-combustion-based-on-real-world-measurements-and-tube-furnace-experiments
#19
JOURNAL ARTICLE
Zeyu Liu, Yanli Feng, Yu Peng, Junjie Cai, Chunlei Li, Qing Li, Mei Zheng, Yingjun Chen
This study updated carbonyl compound (CC) emission factors (EFs) and composition for residential solid fuel combustion based on real-world measurements of 124 fuel/stove combinations in China and explored the CC formation mechanism using tube-furnace experiments with 19 fuels and low/high temperatures to explain the impact of fuel and stove on CC emission characteristics. The average EFCC values for straw, wood, and coal were 1.94 ± 1.57, 1.50 ± 0.88, and 0.40 ± 0.54 g/kg, respectively. Formaldehyde and acetaldehyde were the most abundant species, accounting for 40-60% of CCs, followed by acetone (∼20%), aromatic aldehydes (∼10%), and unsaturated aldehydes (∼5%)...
October 18, 2022: Environmental Science & Technology
https://read.qxmd.com/read/36198091/characterization-of-aerosol-properties-from-the-burning-emissions-of-typical-residential-fuels-on-the-tibetan-plateau
#20
JOURNAL ARTICLE
Xinghua Zhang, Jianzhong Xu, Lixiang Zhai, Wenhui Zhao
The Tibet Autonomous Region in China is a unique place with high altitude and special Tibetan culture. The residents have different living habits and domestic fuels from those in other parts of China, however, knowledge on the emission characteristics of local residential fuels remain poorly understood until now. In this study, nine popular residential fuels in the Tibet are burned in situ to study the aerosol chemical compositions, mass spectral signatures, and emission characteristics from their burning emissions...
October 5, 2022: Environmental Science & Technology
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