keyword
MENU ▼
Read by QxMD icon Read
search

Pm2.5

keyword
https://www.readbyqxmd.com/read/28098788/evaluation-of-potential-average-daily-doses-adds-of-pm2-5-for-homemakers-conducting-pan-frying-inside-ordinary-homes-under-four-ventilation-conditions
#1
Seonyeop Lee, Sol Yu, Sungroul Kim
Several studies reported that commercial barbecue restaurants likely contribute to the indoor emission of particulate matters with a diameter of 2.5 micrometers or less (PM2.5) while pan-frying meat. However, there is inadequate knowledge of exposure level to indoor PM2.5 in homes and the contribution of a typical indoor pan-frying event. We measured the indoor PM2.5 concentration and, using Monte-Carlo simulation, estimated potential average daily dose (ADD) of PM2.5 for homemakers pan-frying a piece of pork inside ordinary homes...
January 13, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28098262/quantification-of-the-sources-and-composition-of-particulate-matter-by-field-deployable-mass-spectrometry-implications-for-air-quality-and-public-health
#2
Patrick L Hayes
Airborne particulate matter less than 2.5 μm in diameter (PM2.5) negatively impacts air quality in cities throughout the world where it has been linked to increased cardiac and respiratory morbidity and mortality. For this reason PM2.5 standards have been established by many countries and the World Health Organization. However, these guidelines are regularly exceeded in North America, Europe and East Asia. While PM2.5 is often reported as a single atmospheric species, it is actually a mixture of organic and inorganic compounds...
January 18, 2017: Analyst
https://www.readbyqxmd.com/read/28097517/in-utero-exposure-of-hyperlipidemic-mice-to-diesel-exhaust-lack-of-effects-on-atherosclerosis-in-adult-offspring-fed-a-regular-chow-diet
#3
Jenna Harrigan, Divya Ravi, Jerry Ricks, Michael E Rosenfeld
Uterine stress is associated with an increased risk of later life metabolic diseases. In this study, we investigated the effect of diesel exhaust (DE) exposure in utero on adult susceptibility to atherosclerosis in genetically hyperlipidemic mice. Pregnant apolipoprotein E-deficient mice received either DE exposure (~250-300 μg/m(3) PM2.5 for 6 h/day, 5 days/week) or filtered air (FA) throughout gestation. Treatment effects on litter size and gender distribution were recorded. Plasma cholesterol and triglycerides were measured at 8, 12 and 16 weeks of age...
January 17, 2017: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/28094471/cleanable-air-filter-transferring-moisture-and-effectively-capturing-pm2-5
#4
Xinglei Zhao, Yuyao Li, Ting Hua, Pan Jiang, Xia Yin, Jianyong Yu, Bin Ding
The lethal danger of particulate matter (PM) pollution on health leads to the development of challenging individual protection materials that should ideally exhibit a high PM2.5 purification efficiency, low air resistance, an important moisture-vapor transmission rate (MVTR), and an easy-to-clean property. Herein, a cleanable air filter able to rapidly transfer moisture and efficiently capture PM2.5 is designed by electrospinning superhydrophilic polyacrylonitrile/silicon-dioxide fibers as the adsorption-desorption vector for moisture-vapor, and hydrophobic polyvinylidene fluoride fibers as the repellent components to avoid the formation of capillary water under high humidity...
January 17, 2017: Small
https://www.readbyqxmd.com/read/28091981/environmental-pollutants-limitations-in-physical-functioning-and-frailty-in-older-adults
#5
REVIEW
Esther García-Esquinas, Fernando Rodríguez-Artalejo
PURPOSE OF REVIEW: Frailty is an age-related syndrome characterized by reductions in strength, endurance, and physiologic function that increase an individual's vulnerability for developing dependence or death. Extensive research is currently being conducted to determine preventable risk factors and mechanistic pathways of frailty. This review summarizes the existing evidence on the potential associations between environmental pollutants, limitations in physical functioning, and frailty among older adults...
January 16, 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28091679/sustainability-of-renewable-fuel-infrastructure-a-screening-lca-case-study-of-anticorrosive-graphene-oxide-epoxy-liners-in-steel-tanks-for-the-storage-of-biodiesel-and-its-blends
#6
Govinda Chilkoor, Venkata K K Upadhyayula, Venkataramana Gadhamshetty, Nikhil Koratkar, Mats Tysklind
Biodiesel is a widely used fuel that meets the renewable fuel standards developed under the Energy Policy Act of 2005. However, biodiesel is known to pose a series of abiotic and biotic corrosion risks to storage tanks. A typical practice (incumbent system) used to protect the tanks from these risks include (i) coating the interior surface of the tank with a solvent-free epoxy (SFE) liner, and (ii) adding a biocide to the tank. Herein, we present a screening-level life-cycle assessment study to compare the environmental performance of a graphene oxide (GO)-epoxy (GOE) liner with the incumbent system...
January 16, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28089210/pm10-and-pm2-5-chemical-source-profiles-with-optical-attenuation-and-health-risk-indicators-of-paved-and-unpaved-road-dust-in-bhopal-india
#7
Shilpi Samiksha, Ramya Sunder Raman, Jayant Nirmalkar, Samresh Kumar, Rohit Sirvaiya
Size classified (PM10 and PM2.5) paved and unpaved road dust chemical source profiles, optical attenuation and potential health risk from exposure to these sources are reported in this study. A total of 45 samples from 9 paved road and 6 unpaved road sites located in and around Bhopal were re-suspended in the laboratory, collected onto filter substrates and subjected to a variety of chemical analyses. In general, road dust was enriched (compared to upper continental crustal abundance) in anthropogenic pollutants including Sb, Cu, Zn, Co, and Pb...
January 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28088626/characterization-and-source-apportionment-of-pm2-5-based-on-error-estimation-from-epa-pmf-5-0-model-at-a-medium-city-in-china
#8
Baoshuang Liu, Jianhui Wu, Jiaying Zhang, Lu Wang, Jiamei Yang, Danni Liang, Qili Dai, Xiaohui Bi, Yinchang Feng, Yufen Zhang, Qinxun Zhang
Heze city, a medium-size city in Shandong province, Eastern China. Ambient PM2.5 samples were collected in urban area of Heze from August 2015 to April 2016, and chemical species and sources of PM2.5 were investigated in this paper. The results indicated that the average concentration of PM2.5 was 100.9 μg/m(3) during the sampling period, and the water-soluble ions, carbonaceous species included elemental carbon (EC) and organic carbon (OC), as well as elements contributed 32.7-51.7%, 16.3% and 12.5%, respectively, to PM2...
January 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28088011/particulates-and-noise-exposure-during-bicycle-bus-and-car-commuting-a-study-in-three-european-cities
#9
Enembe O Okokon, Tarja Yli-Tuomi, Anu W Turunen, Pekka Taimisto, Arto Pennanen, Ilias Vouitsis, Zissis Samaras, Marita Voogt, Menno Keuken, Timo Lanki
BACKGROUND: In order to curb traffic-related air pollution and its impact on the physical environment, contemporary city commuters are encouraged to shift from private car use to active or public transport modes. However, personal exposures to particulate matter (PM), black carbon and noise during commuting may be substantial. Therefore, studies comparing exposures during recommended modes of transport versus car trips are needed. METHODS: We measured personal exposure to various-sized particulates, soot, and noise during commuting by bicycle, bus and car in three European cities: Helsinki in Finland, Rotterdam in the Netherlands and Thessaloniki in Greece using portable monitoring devices...
January 11, 2017: Environmental Research
https://www.readbyqxmd.com/read/28081508/historical-variation-in-black-carbon-deposition-and-sources-to-northern-china-sediments
#10
Wenxue Xu, Fu Wang, Jiwei Li, Lizhu Tian, Xingyu Jiang, Jilong Yang, Bing Chen
Black carbon (BC) in fine particulate matter (PM2.5) is an important air pollutant in a large area of China. We have reconstructed a 100-year-long history of BC deposition based on analyses of sediment samples in the coastal area of the Northern China Plain (NCP). During 1900-2010, the sedimentary BC concentrations at three cores increased from 0.2 to 1.3, from 0.2 to 2.3, and from 0.2 to 1.9 mg g(-1), and the ranges for the BC deposition fluxes were 0.1-4.7, 0.1-8.2, 0.2-7.4 g m(-2) a(-1), suggesting the increase of ten times from the pre-industrial era...
January 2, 2017: Chemosphere
https://www.readbyqxmd.com/read/28080047/burden-of-disease-from-rising-coal-fired-power-plant-emissions-in-southeast-asia
#11
Shannon N Koplitz, Daniel J Jacob, Melissa P Sulprizio, Lauri Myllyvirta, Colleen Reid
Southeast Asia has a very high population density and is on a fast track to economic development, with most of the growth in electricity demand currently projected to be met by coal. From a detailed analysis of coal-fired power plants presently planned or under construction in Southeast Asia, we project in a business-as-usual scenario that emissions from coal in the region will triple to 2.6 Tg a(-1) SO2 and 2.6 Tg a(-1) NOx by 2030, with the largest increases occurring in Indonesia and Vietnam. Simulations with the GEOS-Chem chemical transport model show large resulting increases in surface air pollution, up to 11 μg m(-3) for annual mean fine particulate matter (PM2...
January 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28079138/spatiotemporal-pattern-of-pm2-5-concentrations-in-mainland-china-and-analysis-of-its-influencing-factors-using-geographically-weighted-regression
#12
Jieqiong Luo, Peijun Du, Alim Samat, Junshi Xia, Meiqin Che, Zhaohui Xue
Based on annual average PM2.5 gridded dataset, this study first analyzed the spatiotemporal pattern of PM2.5 across Mainland China during 1998-2012. Then facilitated with meteorological site data, land cover data, population and Gross Domestic Product (GDP) data, etc., the contributions of latent geographic factors, including socioeconomic factors (e.g., road, agriculture, population, industry) and natural geographical factors (e.g., topography, climate, vegetation) to PM2.5 were explored through Geographically Weighted Regression (GWR) model...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28076967/fine-particulate-matter-on-hospital-admissions-for-acute-exacerbation-of-chronic-obstructive-pulmonary-disease-in-southwestern-taiwan-during-2006-2012
#13
Su-Lun Hwang, Yu-Ching Lin, Su-Er Guo, Chiang-Ting Chou, Chieh-Mo Lin, Miao-Ching Chi
This study explored the effects of PM2.5 on hospital admissions (HAs) for acute exacerbation of chronic obstructive pulmonary disease (AECOPD) in southwestern Taiwan. Data on HAs for AECOPD, pollutants, and meteorological variables were obtained from the National Health Insurance Research Database and Environmental Protection Administration. The relative risks (RRs) of HAs for AECOPD was estimated using the Quasi-Poisson generalized additive model. A total of 38,715 HAs for AECOPD were recorded. The average daily HAs for AECOPD and mean 24-h average level of PM2...
January 11, 2017: International Journal of Environmental Health Research
https://www.readbyqxmd.com/read/28076275/atmospheric-fine-particulate-matter-and-breast-cancer-mortality-a-population-based-cohort-study
#14
Giovanna Tagliabue, Alessandro Borgini, Andrea Tittarelli, Aaron van Donkelaar, Randall V Martin, Martina Bertoldi, Sabrina Fabiano, Anna Maghini, Tiziana Codazzi, Alessandra Scaburri, Imma Favia, Alessandro Cau, Giulio Barigelletti, Roberto Tessandori, Paolo Contiero
OBJECTIVES: Atmospheric fine particulate matter (PM2.5) has multiple adverse effects on human health. Global atmospheric levels of PM2.5 increased by 0.55 μg/m(3)/year (2.1%/year) from 1998 through 2012. There is evidence of a causal relationship between atmospheric PM2.5 and breast cancer (BC) incidence, but few studies have investigated BC mortality and atmospheric PM2.5. We investigated BC mortality in relation to atmospheric PM2.5 levels among patients living in Varese Province, northern Italy...
November 14, 2016: BMJ Open
https://www.readbyqxmd.com/read/28075569/inlet-particle-sorting-cyclone-for-the-enhancement-of-pm2-5-separation
#15
Pengbo Fu, Fei Wang, Xue-Jing Yang, Liang Ma, Xin Cui, Hualin Wang
Many cities are suffering from severe air pollution from fine particulate matter. Cyclone is an effective separator for particulate pollutant but has low efficiency for those with an aerodynamic diameter of 2.5 μm or less (PM2.5). In this research, four novel inlet particle-sorting cyclones were first developed to enhance the separation of PM2.5. The energy consumption, overall separation efficiency, particle grade efficiency,outlet particle concentration and size distribution were compared with common cyclone (CM-C)...
January 11, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28069988/exposure-to-concentrated-ambient-pm2-5-shortens-lifespan-and-induces-inflammation-associated-signaling-and-oxidative-stress-in-drosophila
#16
Xiaoke Wang, Minjie Chen, Mianhua Zhong, Ziying Hu, Lianglin Qiu, Sanjay Rajagopalan, Nancy G Fossett, Lung-Chi Chen, Zhekang Ying
BACKGROUND: Exposure to ambient PM2.5 is associated with human premature mortality. However, it has not yet been toxicologically replicated, likely due to the lack of suitable animal models. Drosophila is frequently used in longevity research due to many incomparable merits. OBJECTIVE: The present study aims to validate Drosophila models for PM2.5 toxicity study through characterizing their biological responses to exposure to concentrated ambient PM2.5 (CAP). RESULTS: The survivorship curve demonstrated that exposure to CAP markedly reduced lifespan of Drosophila...
January 9, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28067786/impact-of-air-pollutants-on-outpatient-visits-for-acute-respiratory-outcomes
#17
Ran Li, Ning Jiang, Qichen Liu, Jing Huang, Xinbiao Guo, Fan Liu, Zhancheng Gao
The air pollution in China is a severe problem. The aim of our study was to investigate the impact of air pollutants on acute respiratory outcomes in outpatients. Outpatient data from 2 December 2013 to 1 December 2014 were collected, as well as air pollutant data including ozone (O₃), nitrogen dioxide (NO₂), carbon monoxide (CO), sulfur dioxide (SO₂), and particulate matter (PM2.5 and PM10). We screened six categories of acute respiratory outcomes and analyzed their associations with different air pollutant exposures, including upper respiratory tract infection (URTI), acute bronchitis (AB), community-acquired pneumonia (CAP), acute exacerbation of chronic obstructive pulmonary disease (AECOPD), acute exacerbation of asthma (AE-asthma), and acute exacerbation of bronchiectasis (AEBX)...
January 5, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28067267/polydatin-protects-the-respiratory-system-from-pm2-5-exposure
#18
Xiao-Dan Yan, Qi-Ming Wang, Cai Tie, Hong-Tao Jin, Yan-Xing Han, Jin-Lan Zhang, Xiao-Ming Yu, Qi Hou, Piao-Piao Zhang, Ai-Ping Wang, Pei-Cheng Zhang, Zhonggao Gao, Jian-Dong Jiang
Atmospheric particle is one of the risk factors for respiratory disease; however, their injury mechanisms are poorly understood, and prevention methods are highly desirable. We constructed artificial PM2.5 (aPM2.5) particles according to the size and composition of actual PM2.5 collected in Beijing. Using these artificial particles, we created an inhalation-injury animal model. These aPM2.5 particles simulate the physical and chemical characteristics of the actual PM2.5, and inhalation of the aPM2.5 in rat results in a time-dependent change in lung suggesting a declined lung function, injury from oxidative stress and inflammation in lung...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28065572/uneven-distribution-of-inorganic-pollutants-in-marine-air-originating-from-ocean-going-ships
#19
László Bencs, Benjamin Horemans, Anna Jolanta Buczyńska, René Van Grieken
The distribution of mass, water-soluble inorganic salts and mineral elements of size-segregated aerosols (PM1, PM2.5-1 and PM10-2.5), precursor gaseous pollutants, black carbon, and nanoparticles (10-300 nm size range) at the Southern Bight of the North Sea has been studied. The concentrations of air pollutants peaked over shipping lanes, open-water anchorage areas and frequently navigated waters, due to the presence of mobile emission sources. A considerable decrease in air pollutant levels was seen when diverting from these marine areas towards remote or coastal banks...
January 5, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28065220/effects-of-lianhua-qingwen-on-pulmonary-oxidative-lesions-induced-by-fine-particulates-pm2-5-in-rats
#20
Ping Fen, Li Zhen-Sheng, Zhang Feng-Rui, Li De-Xin, Han Shu-Zhi
Objective To investigate the antagonistic effects of different doses of Lianhua Qingwen on pulmonary injury induced by fine particulates PM2.5 in rats. Methods Fine particulates suspended in the environment were collected. Forty-eight healthy adult wistar rats were randomly divided into 6 groups with 8 rats in each group. Four groups of rats were exposed to PM2.5 by intratracheally dripping suspensions of fine particulates PM2.5 (7.5 mg/kg) as dust-exposed model rats. Among them 24 rats in three groups received Lianhua Qingwen treatment (crude drug) at a dose of 2 g/kg, 4 g/kg, 8 g/kg per day for 3 days before dust exposure and were defined as low-dose, middle-dose and high-dose Lianhua Qingwen treatment groups respectively...
November 20, 2016: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
keyword
keyword
46528
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"