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https://www.readbyqxmd.com/read/28698671/morphology-composition-and-mixing-state-of-primary-particles-from-combustion-sources-crop-residue-wood-and-solid-waste
#1
Lei Liu, Shaofei Kong, Yinxiao Zhang, Yuanyuan Wang, Liang Xu, Qin Yan, A P Lingaswamy, Zongbo Shi, Senlin Lv, Hongya Niu, Longyi Shao, Min Hu, Daizhou Zhang, Jianmin Chen, Xiaoye Zhang, Weijun Li
Morphology, composition, and mixing state of individual particles emitted from crop residue, wood, and solid waste combustion in a residential stove were analyzed using transmission electron microscopy (TEM). Our study showed that particles from crop residue and apple wood combustion were mainly organic matter (OM) in smoldering phase, whereas soot-OM internally mixed with K in flaming phase. Wild grass combustion in flaming phase released some Cl-rich-OM/soot particles and cardboard combustion released OM and S-rich particles...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28617349/investigation-of-acute-pulmonary-deficits-associated-with-biomass-fuel-cookstove-emissions-in-rural-bangladesh
#2
Danielle N Medgyesi, Heather A Holmes, Jeff E Angermann
The use of solid biomass fuels in cookstoves has been associated with chronic health impacts that disproportionately affect women worldwide. Solid fuel stoves that use wood, plant matter, and cow dung are commonly used for household cooking in rural Bangladesh. This study investigates the immediate effects of acute elevated cookstove emission exposures on pulmonary function. Pulmonary function was measured with spirometry before and during cooking to assess changes in respiratory function during exposure to cookstove emissions for 15 females ages 18-65...
June 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28609218/lung-function-measures-following-simulated-wildland-firefighter-exposures
#3
Matthew D Ferguson, Erin O Semmens, Emily Weiler, Joe Domitrovich, Mary French, Christopher Migliaccio, Charles Palmer, Charles Dumke, Tony Ward
Across the world, biomass smoke is a major source of air pollution and is linked with a variety of adverse health effects. This is particularly true in the western US where wood smoke from wildland forest fires are a significant source of PM2.5. Wildland firefighters are impacted as they experience elevated PM2.5 concentrations over extended periods of time, often occurring during physical exertion. Various epidemiological studies have investigated wood smoke impacts on human health, including occupational field exposures experienced by wildland firefighters...
June 13, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28583817/wood-stove-pollution-in-the-developed-world-a-case-to-raise-awareness-among-pediatricians
#4
Lisa B Rokoff, Petros Koutrakis, Eric Garshick, Margaret R Karagas, Emily Oken, Diane R Gold, Abby F Fleisch
Use of wood for residential heating is regaining popularity in developed countries. Currently, over 11 million US homes are heated with a wood stove. Although wood stoves reduce heating costs, wood smoke may adversely impact child health through the emission of gaseous and particulate air pollutants. Our purpose is to raise awareness of this environmental health issue among pediatricians. To summarize the state of the science, we performed a narrative review of articles published in PubMed and Web of Science...
June 2017: Current Problems in Pediatric and Adolescent Health Care
https://www.readbyqxmd.com/read/28541823/emission-factors-of-fine-particulate-matter-organic-and-elemental-carbon-carbon-monoxide-and-carbon-dioxide-for-four-solid-fuels-commonly-used-in-residential-heating-by-the-navajo-nation
#5
Wyatt M Champion, Lea Connors, Lupita D Montoya
Most homes in the Navajo Nation use wood as their primary heating fuel, often in combination with locally mined coal. Previous studies observed health effects linked to this solid-fuel use in several Navajo communities. Emission factors (EFs) for common fuels used by the Navajo have not been reported using a relevant stove type. In this study, two softwoods (ponderosa pine and Utah juniper) and two high-volatile bituminous coals (Black Mesa and Fruitland) were tested with an in-use residential conventional wood stove (homestove) using a modified American Society for Testing and Materials/U...
May 25, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28262368/role-of-chinese-cooking-emissions-on-ambient-air-quality-and-human-health
#6
Lina Wang, Zhiyuan Xiang, Svetlana Stevanovic, Zoran Ristovski, Farhad Salimi, Jun Gao, Hongli Wang, Li Li
Chinese-style cooking often involves volatilization of oils which can potentially produce a large number of pollutants, which have adverse impact on environment and human health. Therefore, we have reviewed 75 published studies associated with research topic among Mainland China, Hong Kong and Taiwan, involving studies on the roles of food ingredients and oil type, cooking style impacting on generated pollutants, and human health. The highest concentration occurred including: 1) when peat, wood, and raw coal were used in stoves; 2) olive oil was adopted; 3) cooking with high temperatures; and 4) without cleaning technology...
July 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27695758/polycyclic-aromatic-hydrocarbon-contamination-in-soils-of-san-mateo-ixtat%C3%A3-n-guatemala-occurrence-sources-and-health-risk-assessment
#7
Varun K Kasaraneni, Vinka Oyanedel-Craver
Exposure to high concentrations of carcinogenic pollutants in soils and sediments can result in increased health risks. Determining the levels and sources of contamination in developing communities is important for helping to reduce pollution and mitigate the risk of exposure. In the Mayan community of San Mateo Ixtatán, Guatemala, 24 samples of topsoil from urban, peri-urban, and agricultural sites and six samples of river sediment were collected and analyzed for 17 polycyclic aromatic hydrocarbons (PAHs)...
September 2016: Journal of Environmental Quality
https://www.readbyqxmd.com/read/27450960/five-primary-sources-of-organic-aerosols-in-the-urban-atmosphere-of-belgrade-serbia
#8
Roberta Zangrando, Elena Barbaro, Torben Kirchgeorg, Marco Vecchiato, Elisa Scalabrin, Marta Radaelli, Dragana Đorđević, Carlo Barbante, Andrea Gambaro
Biomass burning and primary biological aerosol particles (PBAPs) represent important primary sources of organic compounds in the atmosphere. These particles and compounds are able to affect climate and human health. In the present work, using HPLC-orbitrapMS, we determined the atmospheric concentrations of molecular markers such as anhydrosugars and phenolic compounds that are specific for biomass burning, as well as the concentrations of sugars, alcohol sugars and d- and l-amino acids (D-AAs and L-AAs) for studying PBAPs in Belgrade (Serbia) aerosols collected in September-December 2008...
November 15, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27400906/exposure-and-size-distribution-of-nitrated-and-oxygenated-polycyclic-aromatic-hydrocarbons-among-the-population-using-different-household-fuels
#9
Guofeng Shen, Yuanchen Chen, Wei Du, Nan Lin, Xilong Wang, Hefa Cheng, Junfeng Liu, Chunyu Xue, Guangqing Liu, Eddy Y Zeng, Baoshan Xing, Shu Tao
Polycyclic aromatic hydrocarbons (PAHs) derivatives like nitrated and oxygenated PAHs are of growing concerns because of considerably higher toxicity and important roles during atmospheric chemical reactions. Residential solid fuel combustion is likely to be one large primary source of these pollutants in developing countries. In this study, inhalation exposure to nitrated and oxygenated PAH derivatives was evaluated among rural residents using carried samplers. The exposure levels of individual nitrated PAHs ranged from 4...
September 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27389398/estimating-indoor-pm2-5-and-co-concentrations-in-households-in-southern-nepal-the-nepal-cookstove-intervention-trials
#10
Chen Chen, Scott Zeger, Patrick Breysse, Joanne Katz, William Checkley, Frank C Curriero, James M Tielsch
High concentrations of household air pollution (HAP) due to biomass fuel usage with unvented, insufficient combustion devices are thought to be an important health risk factor in South Asia population. To better characterize the indoor concentrations of particulate matter (PM2.5) and carbon monoxide (CO), and to understand their impact on health in rural southern Nepal, this study analyzed daily monitoring data collected with DataRAM pDR-1000 and LASCAR CO data logger in 2980 households using traditional biomass cookstove indoor through the Nepal Cookstove Intervention Trial-Phase I between March 2010 and October 2011...
2016: PloS One
https://www.readbyqxmd.com/read/27348699/a-cost-efficiency-and-health-benefit-approach-to-improve-urban-air-quality
#11
A I Miranda, J Ferreira, C Silveira, H Relvas, L Duque, P Roebeling, M Lopes, S Costa, A Monteiro, C Gama, E Sá, C Borrego, J P Teixeira
When ambient air quality standards established in the EU Directive 2008/50/EC are exceeded, Member States are obliged to develop and implement Air Quality Plans (AQP) to improve air quality and health. Notwithstanding the achievements in emission reductions and air quality improvement, additional efforts need to be undertaken to improve air quality in a sustainable way - i.e. through a cost-efficiency approach. This work was developed in the scope of the recently concluded MAPLIA project "Moving from Air Pollution to Local Integrated Assessment", and focuses on the definition and assessment of emission abatement measures and their associated costs, air quality and health impacts and benefits by means of air quality modelling tools, health impact functions and cost-efficiency analysis...
November 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27348315/reducing-ultrafine-particle-emissions-using-air-injection-in-wood-burning-cookstoves
#12
Vi H Rapp, Julien J Caubel, Daniel L Wilson, Ashok J Gadgil
In order to address the health risks and climate impacts associated with pollution from cooking on biomass fires, researchers have focused on designing new cookstoves that improve cooking performance and reduce harmful emissions, specifically particulate matter (PM). One method for improving cooking performance and reducing emissions is using air injection to increase turbulence of unburned gases in the combustion zone. Although air injection reduces total PM mass emissions, the effect on PM size distribution and number concentration has not been thoroughly investigated...
August 2, 2016: Environmental Science & Technology
https://www.readbyqxmd.com/read/27242100/-indoor-air-pollution-by-fine-particulate-matter-in-the-homes-of-newborns
#13
René Mauricio Barría, Mario Calvo, Paulina Pino
INTRODUCTION: Air pollution by particulate matter (PM) is a major public health problem. In Chile, the study has focused on outdoor air and PM10, rather than indoor air and PM2.5. Because newborns and infants spend most of their time at home, it is necessary to evaluate the exposure to indoor air pollution in this susceptible population. OBJECTIVE: To determine concentration of PM2.5 in the homes of newborns and identify the emission sources of the pollutants. PATIENTS AND METHOD: The PM2...
September 2016: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/26895221/mutagenicity-and-pollutant-emission-factors-of-solid-fuel-cookstoves-comparison-with-other-combustion-sources
#14
Esra Mutlu, Sarah H Warren, Seth M Ebersviller, Ingeborg M Kooter, Judith E Schmid, Janice A Dye, William P Linak, M Ian Gilmour, James J Jetter, Mark Higuchi, David M DeMarini
BACKGROUND: Emissions from solid fuels used for cooking cause ~4 million premature deaths per year. Advanced solid-fuel cookstoves are a potential solution, but they should be assessed by appropriate performance indicators, including biological effects. OBJECTIVE: We evaluated two categories of solid-fuel cookstoves for eight pollutant and four mutagenicity emission factors, correlated the mutagenicity emission factors, and compared them to those of other combustion emissions...
July 2016: Environmental Health Perspectives
https://www.readbyqxmd.com/read/26561964/impacts-of-combustion-conditions-and-photochemical-processing-on-the-light-absorption-of-biomass-combustion-aerosol
#15
J Martinsson, A C Eriksson, I Elbæk Nielsen, V Berg Malmborg, E Ahlberg, C Andersen, R Lindgren, R Nyström, E Z Nordin, W H Brune, B Svenningsson, E Swietlicki, C Boman, J H Pagels
The aim was to identify relationships between combustion conditions, particle characteristics, and optical properties of fresh and photochemically processed emissions from biomass combustion. The combustion conditions included nominal and high burn rate operation and individual combustion phases from a conventional wood stove. Low temperature pyrolysis upon fuel addition resulted in "tar-ball" type particles dominated by organic aerosol with an absorption Ångström exponent (AAE) of 2.5-2.7 and estimated Brown Carbon contributions of 50-70% to absorption at the climate relevant aethalometer-wavelength (520 nm)...
December 15, 2015: Environmental Science & Technology
https://www.readbyqxmd.com/read/26442274/biogas-cook-stoves-for-healthy-and-sustainable-diets-a-case-study-in-southern-india
#16
Tal Lee Anderman, Ruth S DeFries, Stephen A Wood, Roseline Remans, Richie Ahuja, Shujayath E Ulla
Alternative cook stoves that replace solid fuels with cleaner energy sources, such as biogas, are gaining popularity in low-income settings across Asia, Africa, and South America. Published research on these technologies focuses on their potential to reduce indoor air pollution and improve respiratory health. Effects on other cooking-related aspects, such as diets and women's time management, are less understood. In this study, in southern India, we investigate if using biogas cook stoves alters household diets and women's time management...
2015: Frontiers in Nutrition
https://www.readbyqxmd.com/read/26276550/assessment-of-vascular-function-in-mexican-women-exposed-to-polycyclic-aromatic-hydrocarbons-from-wood-smoke
#17
Tania Ruiz-Vera, Lucia G Pruneda-Álvarez, Ángeles C Ochoa-Martínez, José L Ramírez-GarcíaLuna, Mauricio Pierdant-Pérez, Antonio A Gordillo-Moscoso, Francisco J Pérez-Vázquez, Iván N Pérez-Maldonado
The use of solid fuels for cooking and heating is likely to be the largest source of indoor air pollution on a global scale; these fuels emit substantial amounts of toxic pollutants such as polycyclic aromatic hydrocarbons (PAHs) when used in simple cooking stoves (such as open "three-stone" fires). Moreover, indoor air pollution from biomass fuels is considered an important risk factor for human health. The aim of this study was to evaluate the relationship between exposure to PAHs from wood smoke and vascular dysfunction; in a group of Mexican women that use biomass combustion as their main energy source inside their homes...
September 2015: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/26198238/indoor-particulate-matter-concentration-water-boiling-time-and-fuel-use-of-selected-alternative-cookstoves-in-a-home-like-setting-in-rural-nepal
#18
Kristen D Ojo, Sutyajeet I Soneja, Carolyn G Scrafford, Subarna K Khatry, Steven C LeClerq, William Checkley, Joanne Katz, Patrick N Breysse, James M Tielsch
Alternative cookstoves are designed to improve biomass fuel combustion efficiency to reduce the amount of fuel used and lower emission of air pollutants. The Nepal Cookstove Trial (NCT) studies effects of alternative cookstoves on family health. Our study measured indoor particulate matter concentration (PM2.5), boiling time, and fuel use of cookstoves during a water-boiling test in a house-like setting in rural Nepal. Study I was designed to select a stove to be used in the NCT; Study II evaluated stoves used in the NCT...
July 2015: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/26042802/cooking-and-season-as-risk-factors-for-acute-lower-respiratory-infections-in-african-children-a-cross-sectional-multi-country-analysis
#19
Hannes Buchner, Eva A Rehfuess
BACKGROUND: Acute lower respiratory infections (ALRI) are a leading cause of death among African children under five. A significant proportion of these are attributable to household air pollution from solid fuel use. METHODS: We assessed the relationship between cooking practices and ALRI in pooled datasets of Demographic and Health Surveys conducted between 2000 and 2011 in countries of sub-Saharan Africa. The impacts of main cooking fuel, cooking location and stove ventilation were examined in 18 (n = 56,437), 9 (n = 23,139) and 6 countries (n = 14,561) respectively...
2015: PloS One
https://www.readbyqxmd.com/read/25994352/household-environment-and-behavioral-determinants-of-respiratory-tract-infection-in-infants-and-young-children-in-northern-bangladesh
#20
S Pieta K Nasanen-Gilmore, Subir Saha, Izaz Rasul, Emily K Rousham
OBJECTIVES: Respiratory tract infections (RTI) are one of the leading causes of under-five mortality in Bangladesh. Solid biomass fuels are the main source of domestic fuel used for cooking across Bangladesh, leading to smoke and pollution exposure in the home. This article aims to identify risk factors for RTI among children aged under five years in Bangladesh with a particular focus on the household environment, fuel use, and cooking practices. METHODS: A cross-sectional household-health survey was carried out in 321 households in northern Bangladesh...
November 2015: American Journal of Human Biology: the Official Journal of the Human Biology Council
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