keyword
MENU ▼
Read by QxMD icon Read
search

indoor air pollution

keyword
https://www.readbyqxmd.com/read/28545208/spatio-temporal-analysis-of-particulate-matter-intake-fractions-for-vehicular-emissions-hourly-variation-by-micro-environments-in-the-greater-toronto-and-hamilton-area-canada
#1
Weeberb J Requia, Matthew D Adams, Altaf Arain, Petros Koutrakis, Wan-Chen Lee, Mark Ferguson
Previous investigations have reported intake fraction (iF) for different environments, which include ambient concentrations (outdoor exposure) and microenvironments (indoor exposure). However, little is known about iF variations due to space-time factors, especially in microenvironments. In this paper, we performed a spatio-temporal analysis of particulate matter (PM2.5) intake fractions for vehicular emissions. Specifically, we investigated hourly variation (12:00am-11:00pm) by micro-environments (residences and workplaces) in the Greater Toronto and Hamilton Area (GTHA), Canada...
May 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545099/fine-particles-in-homes-of-predominantly-low-income-families-with-children-and-smokers-key-physical-and-behavioral-determinants-to-inform-indoor-air-quality-interventions
#2
Neil E Klepeis, John Bellettiere, Suzanne C Hughes, Benjamin Nguyen, Vincent Berardi, Sandy Liles, Saori Obayashi, C Richard Hofstetter, Elaine Blumberg, Melbourne F Hovell
Children are at risk for adverse health outcomes from occupant-controllable indoor airborne contaminants in their homes. Data are needed to design residential interventions for reducing low-income children's pollutant exposure. Using customized air quality monitors, we continuously measured fine particle counts (0.5 to 2.5 microns) over a week in living areas of predominantly low-income households in San Diego, California, with at least one child (under age 14) and at least one cigarette smoker. We performed retrospective interviews on home characteristics, and particle source and ventilation activities occurring during the week of monitoring...
2017: PloS One
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
#3
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 (EF) 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 ASTM/EPA protocol...
May 25, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28536962/trace-element-contents-in-fine-particulate-matter-pm2-5-in-urban-school-microenvironments-near-a-contaminated-beach-with-mine-tailings-cha%C3%A3-aral-chile
#4
Stephanie Mesías Monsalve, Leonardo Martínez, Karla Yohannessen Vásquez, Sergio Alvarado Orellana, José Klarián Vergara, Miguel Martín Mateo, Rogelio Costilla Salazar, Mauricio Fuentes Alburquenque, Dante D Cáceres Lillo
Air quality in schools is an important public health issue because children spend a considerable part of their daily life in classrooms. Particulate size and chemical composition has been associated with negative health effects. We studied levels of trace element concentrations in fine particulate matter (PM2.5) in indoor versus outdoor school settings from six schools in Chañaral, a coastal city with a beach severely polluted with mine tailings. Concentrations of trace elements were measured on two consecutive days during the summer and winter of 2012 and 2013 and determined using X-ray fluorescence...
May 23, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28520744/indoor-simulations-reveal-differences-among-plant-species-in-capturing-particulate-matter
#5
Jungang Chen, Xinxiao Yu, Huaxing Bi, Yanlin Fu
A number of studies have focused on the capacity of urban trees and shrubs to serve as efficient biological filters to mitigate air pollution. In this study, five different tree species were assessed for this function. Kerria japonica, Sophora japonica, Philadelphus pekinensis, Gleditsia sinensis, and Prunus persica 'Atropurpurea' were tested in a deposition chamber using (NH4)2SO4 particles. We quantified and compared the capability of all tested trees to remove particles by assessing deposition velocity, a measure of the ability to remove particles...
2017: PloS One
https://www.readbyqxmd.com/read/28512342/a-gas-sensor-array-for-the-simultaneous-detection-of-multiple-vocs
#6
Yumin Zhang, Jianhong Zhao, Tengfei Du, Zhongqi Zhu, Jin Zhang, Qingju Liu
Air quality around the globe is declining and public health is seriously threatened by indoor air pollution. Typically, indoor air pollutants are composed of a series of volatile organic compounds (VOCs) that are generally harmful to the human body, especially VOCs with low molecular weights (less than 100 Da). Moreover, in some situations, more than one type of VOC is present; thus, a device that can detect one or more VOCs simultaneously would be most beneficial. Here, we synthesized a sensor array with 4 units to detect 4 VOCs: acetone (unit 1), benzene (unit 2), methanol (unit 3) and formaldehyde (unit 4) simultaneously...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28511647/low-smoke-chulha-in-indian-slums-study-protocol-for-a-randomised-controlled-trial
#7
Megha Thakur, Esther A Boudewijns, Giridhara R Babu, Bjorn Winkens, Luc P de Witte, Jeroen Gruiskens, Preeti Sushama, Cristian T Ghergu, Onno C P van Schayck
BACKGROUND: Biomass fuel is used as a primary cooking source by more than half of the world's population, contributing to a high burden of disease. Although cleaner fuels are available, some households continue using solid fuels because of financial constraints and absence of infrastructure, especially in non-notified slums. The present study documents a randomised controlled study investigating the efficacy of improved cookstove on the personal exposure to air pollution and the respiratory health of women and children in an Indian slum...
May 16, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28503417/indoor-outdoor-not-voluptuary-habit-pollution-and-sleep-disordered-breathing-in-children-a-systematic-review
#8
Laura Tenero, Giorgio Piacentini, Luana Nosetti, Emma Gasperi, Michele Piazza, Marco Zaffanello
BACKGROUND: Exposure to environmental pollutants is advocated to be a major risk factor, with increased morbidity and mortality in humans due to acute and chronic airway inflammation. The aim of the present review is to show the literature research regarding the link between the sleep-disordered breathing and exposure to indoor/outdoor pollution in children. We hypothesized that environmental air pollution can play a role in childhood sleep-disordered breathing. METHODS: We conducted an electronic search in Medline (with PubMed interface), Scopus and the ISI Web of Science using the keywords "sleep" or "sleep apnea" or "sleep disordered breathing" and "pollution" and "children" in "Title/Abstract/Keywords", with language restriction (non-English paper) and no date limitation to present...
April 2017: Translational pediatrics
https://www.readbyqxmd.com/read/28503065/serum-cytokine-levels-related-to-exposure-to-volatile-organic-compounds-and-pm2-5-in-dwellings-and-workplaces-in-french-farmers-a-mechanism-to-explain-nonsmoking-copd
#9
Christelle Audi, Nour Baïz, Cara N Maesano, Ollivier Ramousse, Damien Reboulleau, Antoine Magnan, Denis Caillaud, Isabella Annesi-Maesano
Although French farmers smoke less on average than individuals from the general population, they suffer more from COPD. Exposure to biological and chemical air pollutants in the farm may be the cause of these higher COPD rates. This study investigates the role of bio-contaminants, including the relationship of exposure to volatile organic compounds (VOCs) and fine particulate matter (of diameter of 2.5 µm [PM2.5]) objectively measured in the farm settings (dwellings and workplaces) to serum cytokines involved in COPD, in a sample of 72 farmers from 50 farms in the Auvergne region, France...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28481324/chemical-characterization-of-the-indoor-air-quality-of-a-university-hospital-penetration-of-outdoor-air-pollutants
#10
Paul T J Scheepers, Luuk Van Wel, Gwendolyn Beckmann, Rob B M Anzion
For healthcare centers, local outdoor sources of air pollution represent a potential threat to indoor air quality (IAQ). The aim of this study was to study the impact of local outdoor sources of air pollution on the IAQ of a university hospital. IAQ was characterized at thirteen indoor and two outdoor locations and source samples were collected from a helicopter and an emergency power supply. Volatile organic compounds (VOC), acrolein, formaldehyde, nitrogen dioxide (NO₂), respirable particulate matter (PM-4...
May 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28474814/perceived-indoor-air-quality-and-its-relationship-to-air-pollutants-in-french-dwellings
#11
Sarka Langer, Olivier Ramalho, Eline Le Ponner, Mickaël Derbez, Severine Kirchner, Corinne Mandin
Perception of indoor air quality (PIAQ) was evaluated in a nationwide survey of 567 French dwellings, and this survey was combined with measurements of gaseous and particulate matter (PM10 and PM2.5 ) indoor air pollutants and indoor climate parameters. The perception was assessed on a nine-grade scale by both the occupants of the dwellings and the inspectors who performed the measurements. The occupants perceived the air quality in their homes as more pleasant than the inspectors. The inspectors perceived the air quality as more unpleasant in dwellings in which the residents smoked indoors...
May 5, 2017: Indoor Air
https://www.readbyqxmd.com/read/28467206/photovoice-and-youth-empowerment-in-environmental-justice-research-a-pilot-study-examining-woodsmoke-pollution-in-a-pacific-northwest-community
#12
Mattie B Brickle, Robin Evans-Agnew
Woodsmoke pollution is an environmental justice issue for youth living in certain Pacific Northwest cities. Participatory methods such as Citizen Science and Photovoice are effective ways to involve youth in environmental justice research. Little is understood about how youth may be empowered to address woodsmoke issues in their communities. We examined youth empowerment in a citizen science study on woodsmoke, using Photovoice methodology. Ten diverse youth collected and analyzed indoor air samples and photos, then presented their findings to the community and policy makers...
April 2017: Journal of Community Health Nursing
https://www.readbyqxmd.com/read/28456415/degradation-of-indoor-limonene-by-outdoor-ozone-a-cascade-of-secondary-organic-aerosols
#13
Carolin Rösch, Dirk K Wissenbach, Ulrich Franck, Manfred Wendisch, Uwe Schlink
In indoor air, terpene-ozone reactions can form secondary organic aerosols (SOA) in a transient process. 'Real world' measurements conducted in a furnished room without air conditioning were modelled involving the indoor background of airborne particulate matter, outdoor ozone infiltrated by natural ventilation, repeated transient limonene evaporations, and different subsequent ventilation regimes. For the given setup, we disentangled the development of nucleated, coagulated, and condensed SOA fractions in the indoor air and calculated the time dependence of the aerosol mass fraction (AMF) by means of a process model...
April 26, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28453982/effect-of-microstructure-and-surface-hydroxyls-on-the-catalytic-activity-of-au-alooh-for-formaldehyde-removal-at-room-temperature
#14
Zhaoxiong Yan, Zhihua Xu, Jiaguo Yu, Mietek Jaroniec
A series of Au/AlOOH catalysts was prepared by impregnating different AlOOH supports with Au precursor followed by NaBH4-assisted reduction, and examined their activity toward oxidation of indoor formaldehyde (HCHO) pollutant at room temperature. The AlOOH supports used were synthesized by microemulsion, microwave and hydrothermal methods. Among these supports the catalyst obtained by deposition of Au nanoparticles (NPs) on AlOOH prepared by microemulsion method (Au/AlOOH-m) exhibited the highest catalytic activity...
April 19, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28451957/assessment-of-indoor-and-outdoor-particulate-air-pollution-at-an-urban-background-site-in-iran
#15
Mahmoud Mohammadyan, Mahboobeh Ghoochani, Itai Kloog, Sabah Ahmed Abdul-Wahab, Kaan Yetilmezsoy, Behzad Heibati, Krystal J Godri Pollitt
The relationship between indoor and outdoor particulate air pollution was investigated at an urban background site on the Payambar Azam Campus of Mazandaran University of Medical Sciences in Sari, Northern Iran. The concentration of particulate matter sized with a diameter less than 1 μm (PM1.0), 2.5 μm (PM2.5), and 10 μm (PM10) was evaluated at 5 outdoor and 12 indoor locations. Indoor sites included classrooms, corridors, and office sites in four university buildings. Outdoor PM concentrations were characterized at five locations around the university campus...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28448823/accumulative-effects-of-indoor-air-pollution-exposure-on-leukocyte-telomere-length-among-non-smokers
#16
Nan Lin, Xinlin Mu, Guilian Wang, Yu'ang Ren, Shu Su, Zhiwen Li, Bin Wang, Shu Tao
Indoor air pollution is an important environmental factor that contributes to the burden of various diseases. Long-term exposure to ambient air pollution is associated with telomere shortening. However, the association between chronic indoor air pollution from household fuel combustion and leukocyte telomere length has not been studied. In our study, 137 cancer-free non-smokers were recruited. Their exposure levels to indoor air pollution from 1985 to 2014 were assessed using a face-to-face interview questionnaire, and leukocyte telomere length (LTL) was measured using a monochrome multiplex quantitative PCR method...
April 24, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28439983/a-method-for-assessing-the-performance-of-nanofiber-films-coated-on-window-screens-in-reducing-residential-exposures-to-pm2-5-of-outdoor-origin-in-beijing
#17
Shanshan Shi, Ye Bian, Li Zhang, Chun Chen
Recently, many nanofiber films have been developed for air filtration applications. These films exhibit high PM2.5 (particles with aerodynamic diameters less than 2.5 μm) removal efficiency and relatively low air resistance. Thus, coating window screens with nanofiber films may be able to mitigate residential exposure to PM2.5 of outdoor origin. This study developed a method for assessing the performance of nanofiber window screens in reducing residential exposure to PM2.5 of outdoor origin in Beijing. The results show that the use of selected nanofiber window screens all the time throughout the year can reduce the mean value of the annual average indoor PM2...
April 25, 2017: Indoor Air
https://www.readbyqxmd.com/read/28438993/air-quality-health-and-climate-implications-of-china-s-synthetic-natural-gas-development
#18
Yue Qin, Fabian Wagner, Noah Scovronick, Wei Peng, Junnan Yang, Tong Zhu, Kirk R Smith, Denise L Mauzerall
Facing severe air pollution and growing dependence on natural gas imports, the Chinese government plans to increase coal-based synthetic natural gas (SNG) production. Although displacement of coal with SNG benefits air quality, it increases CO2 emissions. Due to variations in air pollutant and CO2 emission factors and energy efficiencies across sectors, coal replacement with SNG results in varying degrees of air quality benefits and climate penalties. We estimate air quality, human health, and climate impacts of SNG substitution strategies in 2020...
May 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28438639/targeting-interleukin-17-signalling-in-cigarette-smoke-induced-lung-disease-mechanistic-concepts-and-therapeutic-opportunities
#19
REVIEW
Abraham B Roos, Martin R Stampfli
It is widely accepted that compromised lung function in chronic obstructive pulmonary disease (COPD) is, at least in part, a consequence of persistent airway inflammation caused by particles and noxious gases present in cigarette smoke and indoor air pollution from burning biomass fuel. Currently, the World Health Organization estimates that 80 million people have moderate or severe COPD worldwide. While there is a global need for effective medical treatment, current therapeutic interventions have shown limited success in preventing disease pathology and progression...
April 21, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28432989/the-effect-of-natural-ventilation-strategy-on-indoor-air-quality-in-schools
#20
Luca Stabile, Marco Dell'Isola, Aldo Russi, Angelamaria Massimo, Giorgio Buonanno
In order to reduce children's exposure to pollutants in classrooms a proper ventilation strategy need to be adopted. Such strategy is even more important in naturally ventilated schools where the air exchange rate is only based on the manual airing of classrooms. The present work aimed to evaluate the effect of the manual airing strategy on indoor air quality in Italian classrooms. For this aim, schools located in the Central Italy were investigated. Indoor air quality was studied in terms of CO2, particle number and PM concentrations and compared to corresponding outdoor levels...
October 1, 2017: Science of the Total Environment
keyword
keyword
113176
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"