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https://www.readbyqxmd.com/read/29149117/-influence-of-titanium-dioxide-activated-under-visible-light-on-survival-of-mold-fungi
#1
Daria Kądziołka, Paulina Rokicka, Agata Markowska-Szczupak, Antoni W Morawski
BACKGROUND: In public and residential buildings, fungi are usually found in the dust or growing on building materials medium such. It has been known that a number of their spores may contaminate the indoor environment and deteriorate air quality in accommodation spaces. Previously designed air cleaning systems do not guarantee a complete removal of agents harmful to humans and animals. Therefore, there is a great need to develop a new solution to remove molds from indoor air. In recent years, photocatalysis based on titanium dioxide (TiO<sub>2</sub>) has been proposed as an effective method for air pollutants removal...
November 17, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/29145141/characterizing-pollutant-emissions-from-mosquito-repellents-incenses-and-implications-in-risk-assessment-of-human-health
#2
Lina Wang, Xinran Zheng, Svetlana Stevanovic, Zhiyuan Xiang, Jing Liu, Huiwen Shi, Jing Liu, Mingzhou Yu, Chun Zhu
Mosquito-repellent incense is one of the most popular products used for dispelling mosquitos during summer in China. It releases large amounts of particulate and gaseous pollutants which constitute a potential hazard to human health. We conducted chamber experiment to characterize major pollutants from three types of mosquito-repellent incenses, further assessed the size-fractionated deposition in human respiratory system, and evaluated the indoor removing efficiency by fresh air. Results showed that the released pollutant concentrations were greater than permissible levels in regulations in GB3095-2012, as well as suggested by the World Health Organization (WHO)...
October 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/29132418/indoor-air-pollution-from-secondhand-tobacco-smoke-solid-fuels-and-kerosene-in-homes-with-active-tuberculosis-disease-in-south-africa
#3
Jessica L Elf, Onyinyechi Eke, Modiehi Rakgokong, Ebrahim Variava, Yudesh Baliram, Katlego Motlhaoleng, Limakatso Lebina, Adrienne E Shapiro, Patrick N Breysse, Jonathan E Golub, Neil Martinson
OBJECTIVES: Secondhand tobacco smoke (SHS), use of solid fuels, and kerosene may play an important role in perpetuating the tuberculosis (TB) epidemic. The purpose of this study was to explore the prevalence of household air pollution (HAP) from these sources in homes of someone with TB in a high HIV-prevalence setting. A convenience sample of homes and household members participating in an ongoing active case-finding study in Matlosana district townships surrounding Klerksdorp, South Africa were included...
November 13, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29127930/indoor-air-quality-of-environments-used-for-physical-exercise-and-sports-practice-systematic-review
#4
REVIEW
Alexandro Andrade, Fábio Hech Dominski
BACKGROUND: Systematic reviews have the potential to contribute substantially to environmental health and risk assessment. OBJECTIVE: This study aimed to investigate indoor air quality of environments used for physical exercise and sports practice through a systematic review. METHODS: The systematic review followed the PRISMA guidelines and was recorded in the PROSPERO registry (CRD42016036057). The search was performed using the SciELO, Science Direct, Scopus, LILACS, MEDLINE via PubMed, and SPORTDiscus databases, from their inception through April 2017...
November 8, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29127390/indoor-pm2-5-exposure-affects-skin-aging-manifestation-in-a-chinese-population
#5
Anan Ding, Yajun Yang, Zhuohui Zhao, Anke Hüls, Andrea Vierkötter, Ziyu Yuan, Jing Cai, Juan Zhang, Wenshan Gao, Jinxi Li, Manfei Zhang, Mary Matsui, Jean Krutmann, Haidong Kan, Tamara Schikowski, Li Jin, Sijia Wang
Traffic-related air pollution is known to be associated with skin aging manifestations. We previously found that the use of fossil fuels was associated with skin aging, but no direct link between indoor air pollutants and skin aging manifestations has ever been shown. Here we directly measured the indoor PM2.5 exposure in 30 households in Taizhou, China. Based on the directly measured PM2.5 exposure and questionnaire data of indoor pollution sources, we built a regression model to predict the PM2.5 exposure in larger datasets including an initial examination group (N = 874) and a second examination group (N = 1003)...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29123371/monitoring-biodiversity-in-libraries-a-pilot-study-and-perspectives-for-indoor-air-quality
#6
REVIEW
F Valeriani, C Cianfanelli, G Gianfranceschi, S Santucci, V Romano Spica, N Mucci
Indoor Air Quality (IAQ) in libraries is influenced by the presence of specific factors which can impact on both paper storage as well as people health. Microclimatic conditions induce and support a biodiversity pattern involving environmental and anthropic microorganisms. We used a multidisciplinary monitoring model to characterize microflora biodiversity by Next Generation Sequencing (NGS). Biodiversity indexes were adapted to evaluate anthropic vs environmental pollution by combining Shannon mean index (H), species representativeness (EH), human/environmental pollution ratio (SA) to better characterize the NGS output and acquire synthetic information on Indoor Air Microbial Biodiversity (IAMB)...
September 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/29121604/occupational-exposure-to-indoor-air-pollution-among-bakery-workers-in-ethiopia-a-comparison-of-electric-and-biomass-cookstoves
#7
George S Downward, Hugo P van der Zwaag, Leon Simons, Kees Meliefste, Yifokire Tefera, J Rosales Carreon, Roel Vermeulen, Lidwien A M Smit
The indoor air pollution (IAP) produced by the domestic combustion of solid fuels is responsible for up to 4 million deaths annually, especially among low and middle income countries. Occupational exposure within the food preparation industries of these nations remains underexplored. We investigated occupational exposure to the IAP produced during the commercial production of injera, a staple of the Ethiopian diet, from bakeries in Addis Ababa, Ethiopia. Measurements of PM2.5, black carbon (via the proxy measure PM2...
November 6, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29117118/diet-and-asthma-is-it-time-to-adapt-our-message
#8
REVIEW
Laurent Guilleminault, Evan J Williams, Hayley A Scott, Bronwyn S Berthon, Megan Jensen, Lisa G Wood
Asthma is a chronic respiratory disorder which is associated with airway inflammation. Environmental factors, in association with genetic susceptibility, play a critical role in asthma pathophysiology. Inhaled allergens, smoke exposure, indoor and outdoor air pollution are common triggers of asthma symptoms. Although the role of diet has clearly established mechanisms in diseases such as cardiovascular disease, type 2 diabetes, and cancer, it is not commonly identified as a causal factor in asthma. However, some dietary patterns, such as the Western diet, which includes a high intake of refined grains, processed and red meats, and desserts, have pro-inflammatory effects...
November 8, 2017: Nutrients
https://www.readbyqxmd.com/read/29109459/selectivity-of-cobalt-corrole-for-co-vs-o2-and-n2-in-indoor-pollution
#9
Xia Sheng, Hailiang Zhao, Lin Du
Coal combustion causes indoor pollution of CO. In this work, DFT calculations on cobalt corrole (Co(Cor)) with three most common indoor gas molecules (N2, O2 and CO) were performed. The Mulliken spin densities show that the ground states of Co(N2)(Cor), Co(CO)(Cor) and Co(OC)(Cor) have an anti-ferromagnetic coupling fashion of the electrons on the Co 3d z(2) orbital and the π orbital of the corrole ring. However, Co(O2)(Cor) has a triplet ground state. With the spin contamination corrections, the Co(N2)(Cor) binding energy was obtained at -50...
November 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29101891/effect-of-air-pollution-on-the-total-bacteria-and-pathogenic-bacteria-in-different-sizes-of-particulate-matter
#10
Huan Liu, Xu Zhang, Hao Zhang, Xiangwu Yao, Meng Zhou, Jiaqi Wang, Zhanfei He, Huihui Zhang, Liping Lou, Weihua Mao, Ping Zheng, Baolan Hu
In recent years, air pollution events have occurred frequently in China during the winter. Most studies have focused on the physical and chemical composition of polluted air. Some studies have examined the bacterial bioaerosols both indoors and outdoors. But few studies have focused on the relationship between air pollution and bacteria, especially pathogenic bacteria. Airborne PM samples with different diameters and different air quality index values were collected in Hangzhou, China from December 2014 to January 2015...
November 1, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29101214/indoor-air-pollution-and-cognitive-function-among-older-mexican-adults
#11
Joseph L Saenz, Rebeca Wong, Jennifer A Ailshire
BACKGROUND: A growing body of research suggests exposure to high levels of outdoor air pollution may negatively affect cognitive functioning in older adults, but less is known about the link between indoor sources of air pollution and cognitive functioning. We examine the association between exposure to indoor air pollution and cognitive function among older adults in Mexico, a developing country where combustion of biomass for domestic energy remains common. METHOD: Data come from the 2012 Wave of the Mexican Health and Aging Study...
November 3, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/29089103/the-feasibility-of-an-air-purifier-and-secondhand-smoke-education-intervention-in-homes-of-inner-city-pregnant-women-and-infants-living-with-a-smoker
#12
Jessica L Rice, Emily Brigham, Rebecca Dineen, Sadiya Muqueeth, Gena O'Keefe, Stephanie Regenold, Kirsten Koehler, Ana Rule, Meredith McCormack, Nadia N Hansel, Gregory B Diette
OBJECTIVES: Secondhand smoke (SHS) and other air pollutants adversely affect the health of pregnant women and infants. A feasibility study aimed at reducing air pollution in homes of pregnant women or infants living with a smoker was completed. METHODS: In collaboration with the Baltimore City Health Department, women ≥ 18 years of age and either pregnant nonsmokers, or post-partum (any smoking status) with an infant age 0-12 months were recruited. Homes had at least one smoker...
October 29, 2017: Environmental Research
https://www.readbyqxmd.com/read/29078189/status-of-indoor-air-pollution-iap-through-particulate-matter-pm-emissions-and-associated-health-concerns-in-south-asia
#13
REVIEW
Muhammad Junaid, Jabir Hussain Syed, Naeem Akhtar Abbasi, Muhammad Zaffar Hashmi, Riffat Naseem Malik, De-Sheng Pei
Exposure to particulate emissions poses a variety of public health concerns worldwide, specifically in developing countries. This review summarized the documented studies on indoor particulate matter (PM) emissions and their major health concerns in South Asia. Reviewed literature illustrated the alarming levels of indoor air pollution (IAP) in India, Pakistan, Nepal, and Bangladesh, while Sri Lanka and Bhutan are confronted with relatively lower levels, albeit not safe. To our knowledge, data on this issue are absent from Afghanistan and Maldives...
October 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/29073525/indoor-particulate-pollution-in-fitness-centres-with-emphasis-on-ultrafine-particles
#14
Klara Slezakova, Cátia Peixoto, Marta Oliveira, Cristina Delerue-Matos, Maria do Carmo Pereira, Simone Morais
Fitness centres (FC) represent a unique indoor microenvironment. Exercising on regular basis provides countless health benefits and improves overall well-being, but if these facilities have poor indoor air quality, the respective exercisers might be subjected to some adverse risks. Considering the limited existent data, this work aimed to evaluate particulate pollution (PM10, PM2.5, and ultrafine particles - UFP) in indoor air of FC and to estimate the respective risks for occupants (both staff and exercising subjects)...
October 23, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29070452/physicochemical-risk-factors-for-building-related-symptoms-in-air-conditioned-office-buildings-ambient-particles-and-combined-exposure-to-indoor-air-pollutants
#15
Kenichi Azuma, Koichi Ikeda, Naoki Kagi, U Yanagi, Haruki Osawa
We conducted a cross-sectional epidemiological study to examine the correlation between indoor air quality (IAQ) and building-related symptoms (BRSs) of office workers in air-conditioned office buildings. We investigated 11 offices during winter and 13 offices during summer in 17 buildings with air-conditioning systems in Tokyo, Osaka, and Fukuoka, and we included 107 office workers during winter and 207 office workers during summer. We conducted environmental sampling for evaluating IAQ and concurrently administered self-reported questionnaires to collect information regarding work-related symptoms...
October 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29064481/development-of-a-modeling-approach-to-estimate-indoor-to-outdoor-sulfur-ratios-and-predict-indoor-pm2-5-and-black-carbon-concentrations-for-eastern-massachusetts-households
#16
Chia Hsi Tang, Eric Garshick, Stephanie Grady, Brent Coull, Joel Schwartz, Petros Koutrakis
The effects of indoor air pollution on human health have drawn increasing attention among the scientific community as individuals spend most of their time indoors. However, indoor air sampling is labor-intensive and costly, which limits the ability to study the adverse health effects related to indoor air pollutants. To overcome this challenge, many researchers have attempted to predict indoor exposures based on outdoor pollutant concentrations, home characteristics, and weather parameters. Typically, these models require knowledge of the infiltration factor, which indicates the fraction of ambient particles that penetrates indoors...
October 18, 2017: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/29062397/key-factors-determining-indoor-air-pm10-concentrations-in-naturally-ventilated-primary-schools-in-belgrade-serbia
#17
Branislava Matic, Uros Rakic, Verica Jovanovic, Snezana Dejanovic, Nela Djonovic
INTRODUCTION: Indoor air quality (IAQ) is rated as a serious public health issue. Knowing children are accounted as more vulnerable to environmental health hazards, data are needed on air quality in schools. METHODS: A project was conducted from 2007 until 2009 (SEARCH, School Environment and Respiratory Health of Children), aiming to verify links between IAQ and children's respiratory health. Study was conducted in ten primary schools on 735 children, in 44 classrooms...
October 2017: Zdravstveno Varstvo
https://www.readbyqxmd.com/read/29044438/high-total-volatile-organic-compounds-pollution-in-a-hospital-dental-department
#18
Ming-Hui Liu, Tao-Hsin Tung, Fen-Fang Chung, Li-Chuan Chuang, Gwo-Hwa Wan
Bioaerosols produced by dental procedures may affect indoor air quality and cause infections in dental healthcare workers. To provide air quality data that can be used to protect dental healthcare workers, this study evaluated the air quality and its influencing factors in the dental department of the Chang Gung Memorial Hospital in Taiwan. The study was a cross-sectional study design. Indoor air quality (IAQ) evaluations were conducted in six locations: pediatric dentistry, craniofacial orthodontic dentistry, periodontal dentistry, and general practice dentistry, instrument washing room, and patient waiting area...
October 18, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29043589/assessment-of-filtration-efficiency-and-physiological-responses-of-selected-plant-species-to-indoor-air-pollutants-toluene-and-2-ethylhexanol-under-chamber-conditions
#19
Vanessa Hörmann, Klaus-Reinhard Brenske, Christian Ulrichs
Three common plant species (Dieffenbachia maculata, Spathiphyllum wallisii, and Asparagus densiflorus) were tested against their capacity to remove the air pollutants toluene (20.0 mg m(-3)) and 2-ethylhexanol (14.6 mg m(-3)) under light or under dark in chamber experiments of 48-h duration. Results revealed only limited pollutant filtration capabilities and indicate that aerial plant parts of the tested species are only of limited value for indoor air quality improvement. The removal rate constant ranged for toluene from 3...
October 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29037301/asthma-symptoms-among-chinese-children-the-role-of-ventilation-and-pm10-exposure-at-school-and-home
#20
X-J Fan, C Yang, L Zhang, Q Fan, T Li, X Bai, Z-H Zhao, X Zhang, D Norback
SETTING: Respiratory symptoms in relation to environment in Taiyuan, China. OBJECTIVE: To study associations between school/home exposure and prevalence of respiratory symptoms and self-reported respiratory infections (RIs) among students. DESIGN: A total of 2134 pupils from 10 schools answered a questionnaire; air pollution at school was measured. RESULTS: The prevalence of current wheeze, daytime attacks of breathlessness, nocturnal cough, nocturnal respiratory symptoms and RI was respectively 4...
November 1, 2017: International Journal of Tuberculosis and Lung Disease
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