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https://www.readbyqxmd.com/read/28219424/health-risk-assessment-of-china-s-main-air-pollutants
#1
Jian Sun, Tiancai Zhou
BACKGROUND: With the rapid development of China's economy, air pollution has attracted public concern because of its harmful effects on health. METHODS: The source apportioning of air pollution, the spatial distribution characteristics, and the relationship between atmospheric contamination, and the risk of exposure were explored. The in situ daily concentrations of the principal air pollutants (PM2.5, PM10, SO2, NO2, CO and O3) were obtained from 188 main cities with many continuous air-monitoring stations across China (2014 and 2015)...
February 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28212639/erectile-dysfunction-and-exposure-to-ambient-air-pollution-in-a-nationally-representative-cohort-of-older-men
#2
Lindsay A Tallon, Justin Manjourides, Vivian C Pun, Murray A Mittleman, Marianthi-Anna Kioumourtzoglou, Brent Coull, Helen Suh
BACKGROUND: Little is known about the association between air pollution and erectile dysfunction (ED), a disorder occurring in 64% of men over the age of 70, and to date, no studies have been published. To address this significant knowledge gap, we explored the relationship between ED and air pollution in a group of older men who were part of the National Social Life, Health, and Aging Project (NSHAP), a nationally representative cohort study of older Americans. METHODS: We obtained incident ED status and participant data for 412 men (age 57-85)...
February 17, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28210895/combining-physiological-environmental-and-locational-sensors-for-citizen-oriented-health-applications
#3
J J Huck, J D Whyatt, P Coulton, B Davison, A Gradinar
This work investigates the potential of combining the outputs of multiple low-cost sensor technologies for the direct measurement of spatio-temporal variations in phenomena that exist at the interface between our bodies and the environment. The example used herein is the measurement of personal exposure to traffic pollution, which may be considered as a function of the concentration of pollutants in the air and the frequency and volume of that air which enters our lungs. The sensor-based approach described in this paper removes the 'traditional' requirements either to model or interpolate pollution levels or to make assumptions about the physiology of an individual...
March 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28202226/air-pollution-pm2-5-composition-source-factors-and-respiratory-symptoms-in-asthmatic-and-nonasthmatic-children-in-santiago-chile
#4
Laura Prieto-Parra, Karla Yohannessen, Cecilia Brea, Daniella Vidal, Carlos A Ubilla, Pablo Ruiz-Rudolph
The objective of this study was to determine the association of respiratory symptoms and medication use and exposure to various air pollutants, PM2.5 components, and source factors in a panel of asthmatic and nonasthmatic children in Santiago, Chile. To this end, 174 children (90 asthmatics and 84 nonasthmatics) were followed throughout the winter months of 2010 and 2011. During the study period, children filled out daily diaries to record respiratory symptoms and medication use. Air pollution data were obtained from government central site measurements and a PM2...
February 12, 2017: Environment International
https://www.readbyqxmd.com/read/28197944/wet-nitrogen-and-phosphorus-deposition-in-the-eutrophication-of-the-lagos-lagoon-nigeria
#5
Najeem O Oladosu, Akeem A Abayomi, Kehinde O Olayinka, Babajide I Alo
Air pollution is influenced by wind-aided particulate suspension, open-air waste burning, and fossil fuel combustion. The pollutants from these sources eventually deposit on ambient surfaces. Atmospheric wet deposition into Lagos Lagoon may be significant additions to the nutrient levels of the eutrophic lagoon. Precipitation was monitored at three stations in the Lagos Lagoon basin from May to November, 2012, in order to estimate the contribution of wet deposition to the nutrient cycles of the lagoon. Water samples were digested with potassium persulfate, and the species of phosphorus (P) and nitrogen (N) were analyzed by colorimetric methods...
February 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28189072/modeling-the-intraurban-variation-in-nitrogen-dioxide-in-urban-areas-in-kathmandu-valley-nepal
#6
Anobha Gurung, Jonathan I Levy, Michelle L Bell
BACKGROUND: With growing urbanization, traffic has become one of the main sources of air pollution in Nepal. Understanding the impact of air pollution on health requires estimation of exposure. Land use regression (LUR) modeling is widely used to investigate intraurban variation in air pollution for Western cities, but LUR models are relatively scarce in developing countries. In this study, we developed LUR models to characterize intraurban variation of nitrogen dioxide (NO2) in urban areas of Kathmandu Valley, Nepal, one of the fastest urbanizing areas in South Asia...
February 8, 2017: Environmental Research
https://www.readbyqxmd.com/read/28180125/relationship-between-air-pollution-weather-traffic-and-traffic-related-mortality
#7
Maryam Dastoorpoor, Esmaeil Idani, Narges Khanjani, Gholamreza Goudarzi, Abbas Bahrampour
BACKGROUND: Air pollution and weather are just two of many environmental factors contributing to traffic accidents (RTA). OBJECTIVES: This study assessed the effects of these factors on traffic accidents and related mortalities in Ahvaz, Iran. METHODS: In this ecological study, data about RTA, traffic-related mortalities, air pollution (including NO, CO, NO2, NOx PM10, SO2, and O3 rates) and climate data from March 2008 until March 2015 was acquired from the Khuzestan State Police Force, the Environmental Protection Agency and the State Meteorological Department...
September 2016: Trauma Monthly
https://www.readbyqxmd.com/read/28169367/development-of-a-novel-simulation-reactor-for-chronic-exposure-to-atmospheric-particulate-matter
#8
Jianhuai Ye, Sepehr Salehi, Michelle L North, Anjelica M Portelli, Chung-Wai Chow, Arthur W H Chan
Epidemiological studies have shown that air pollution is associated with the morbidity and mortality from cardiopulmonary diseases. Currently, limited experimental models are available to evaluate the physiological and cellular pathways activated by chronic multi-pollutant exposures. This manuscript describes an atmospheric simulation reactor (ASR) that was developed to investigate the health effects of air pollutants by permitting controlled chronic in vivo exposure of mice to combined particulate and gaseous pollutants...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28160532/air-pollution-and-potential-health-risk-in-ostrava-region-a-review
#9
Vítězslav Jiřík, Ondřej Machaczka, Hana Miturová, Ivan Tomášek, Hana Šlachtová, Jana Janoutová, Helena Velická, Vladimír Janout
AIM: The aim of this review was to collect all available data about air pollution in Ostrava, which is one of the most polluted area in central Europe and to make a concise assessment of health risks resulting from historical exposures of air pollutants since the beginning of the monitoring, i.e. since 1970 to the present time. METHODS: All available information sources (the Czech Hydrometeorological Institute, the Institute of Public Health in Ostrava or publications) were used...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28159399/particulate-and-gaseous-pollutants-on-inflammation-thrombosis-and-autonomic-imbalance-in-subjects-at-risk-for-cardiovascular-disease
#10
Szu-Ying Chen, Chang-Chuan Chan, Ta-Chen Su
This study examined effects of short-term urban air pollution exposures on inflammation, thrombosis, and autonomic imbalance in subjects at risk for cardiovascular disease (CVD). We enrolled 61 patients with multiple CVD risk factors and measured high sensitive C-reactive protein (hs-CRP), fibrinogen, D-dimer, and heart rate variability (HRV) indices. Two health examinations for each participant were performed during December 2002 through September 2003. Changes in inflammation and thrombotic markers and HRV indices with exposures to PM2...
January 31, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28159394/socioeconomic-position-and-outdoor-nitrogen-dioxide-no2-exposure-in-western-europe-a-multi-city-analysis
#11
Sofia Temam, Emilie Burte, Martin Adam, Josep M Antó, Xavier Basagaña, Jean Bousquet, Anne-Elie Carsin, Bruna Galobardes, Dirk Keidel, Nino Künzli, Nicole Le Moual, Margaux Sanchez, Jordi Sunyer, Roberto Bono, Bert Brunekreef, Joachim Heinrich, Kees de Hoogh, Debbie Jarvis, Alessandro Marcon, Lars Modig, Rachel Nadif, Mark Nieuwenhuijsen, Isabelle Pin, Valérie Siroux, Morgane Stempfelet, Ming-Yi Tsai, Nicole Probst-Hensch, Bénédicte Jacquemin
BACKGROUND: Inconsistent associations between socioeconomic position (SEP) and outdoor air pollution have been reported in Europe, but methodological differences prevent any direct between-study comparison. OBJECTIVES: Assess and compare the association between SEP and outdoor nitrogen dioxide (NO2) exposure as a marker of traffic exhaust, in 16 cities from eight Western European countries. METHODS: Three SEP indicators, two defined at individual-level (education and occupation) and one at neighborhood-level (unemployment rate) were assessed in three European multicenter cohorts...
February 1, 2017: Environment International
https://www.readbyqxmd.com/read/28153529/ambient-ozone-and-incident-diabetes-a-prospective-analysis-in-a-large-cohort-of-african-american-women
#12
Michael Jerrett, Robert Brook, Laura F White, Richard T Burnett, Jeffrey Yu, Jason Su, Edmund Seto, Julian Marshall, Julie R Palmer, Lynn Rosenberg, Patricia F Coogan
BACKGROUND: Ozone is a ubiquitous air pollutant with increasing concentrations in many populous regions. Toxicological studies show that ozone can cause oxidative stress and increase insulin resistance. These pathways may contribute to metabolic changes and diabetes formation. In this paper, we investigate the association between ozone and incident type 2 diabetes in a large cohort of African American women. METHODS: We used Cox proportional hazards models to calculate hazard ratios (HRs) for incident type 2 diabetes associated with exposure to ozone in a cohort of 45,231 African American women living in 56 metropolitan areas across the United States...
January 30, 2017: Environment International
https://www.readbyqxmd.com/read/28153527/anemia-prevalence-and-hemoglobin-levels-are-associated-with-long-term-exposure-to-air-pollution-in-an-older-population
#13
Trenton Honda, Vivian C Pun, Justin Manjourides, Helen Suh
BACKGROUND: Anemia, a highly prevalent disorder in elderly populations, is associated with numerous adverse health outcomes, including increased mortality, impaired functional status and cognitive disorders. Approximately two-thirds of anemia in American elderly is caused by chronic inflammation or is unexplained. A potential contributing factor may include air pollution exposures, which have been shown to increase systemic inflammation and affect erythropoiesis. Few studies, however, have investigated the associations of air pollution on hemoglobin levels and anemia...
January 30, 2017: Environment International
https://www.readbyqxmd.com/read/28141866/spatio-temporal-variation-and-futuristic-emission-scenario-of-ambient-nitrogen-dioxide-over-an-urban-area-of-eastern-india-using-gis-and-coupled-aermod-wrf-model
#14
Sharadia Dey, Srimanta Gupta, Precious Sibanda, Arun Chakraborty
The present study focuses on the spatio-temporal variation of nitrogen dioxide (NO2) during June 2013 to May 2015 and its futuristic emission scenario over an urban area (Durgapur) of eastern India. The concentration of ambient NO2 shows seasonal as well as site specific characteristics. The site with high vehicular density (Muchipara) shows highest NO2 concentration followed by industrial site (DVC- DTPS Colony) and the residential site (B Zone), respectively. The seasonal variation of ambient NO2 over the study area is portrayed by means of Geographical Information System based Digital Elevation Model...
2017: PloS One
https://www.readbyqxmd.com/read/28137791/longitudinal-associations-between-ambient-air-pollution-with-insulin-sensitivity-%C3%AE-cell-function-and-adiposity-in-los-angeles-latino-children
#15
Tanya L Alderete, Rima Habre, Claudia M Toledo-Corral, Kiros Berhane, Zhanghua Chen, Frederick W Lurmann, Marc J Weigensberg, Michael I Goran, Frank D Gilliland
Evidence suggests that ambient air pollution (AAP) exposure may contribute to the development of obesity and type 2 diabetes. The objective of this study was to determine whether exposure to elevated concentrations of nitrogen dioxide (NO2) and particulate matter with aerodynamic diameter less than 2.5 (PM2.5) had adverse effects on longitudinal measures of insulin sensitivity, β-cell function, and obesity in children at high risk for developing diabetes. Overweight and obese Latino children (8-15 years; n=314) were enrolled between 2001-2012 from Los Angeles, California and followed for an average of 3...
January 30, 2017: Diabetes
https://www.readbyqxmd.com/read/28135613/impacts-on-air-pollution-and-health-by-changing-commuting-from-car-to-bicycle
#16
Christer Johansson, Boel Lövenheim, Peter Schantz, Lina Wahlgren, Peter Almström, Anders Markstedt, Magnus Strömgren, Bertil Forsberg, Johan Nilsson Sommar
Our study is based on individual data on people's home and work addresses, as well as their age, sex and physical capacity, in order to establish realistic bicycle-travel distances. A transport model is used to single out data on commuting preferences in the County Stockholm. Our analysis shows there is a very large potential for reducing emissions and exposure if all car drivers living within a distance corresponding to a maximum of a 30min bicycle ride to work would change to commuting by bicycle. It would result in >111,000 new cyclists, corresponding to an increase of 209% compared to the current situation...
January 27, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28129908/an-emission-processing-system-for-air-quality-modelling-in-the-mexico-city-metropolitan-area-evaluation-and-comparison-of-the-mobile6-2-mexico-and-moves-mexico-traffic-emissions
#17
M Guevara, C Tena, A Soret, K Serradell, D Guzmán, A Retama, P Camacho, M Jaimes-Palomera, A Mediavilla
This article describes the High-Elective Resolution Modelling Emission System for Mexico (HERMES-Mex) model, an emission processing tool developed to transform the official Mexico City Metropolitan Area (MCMA) emission inventory into hourly, gridded (up to 1km(2)) and speciated emissions used to drive mesoscale air quality simulations with the Community Multi-scale Air Quality (CMAQ) model. The methods and ancillary information used for the spatial and temporal disaggregation and speciation of the emissions are presented and discussed...
January 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28122671/air-pollution-characteristics-and-their-relation-to-meteorological-conditions-during-2014-2015-in-major-chinese-cities
#18
Jianjun He, Sunling Gong, Ye Yu, Lijuan Yu, Lin Wu, Hongjun Mao, Congbo Song, Suping Zhao, Hongli Liu, Xiaoyu Li, Ruipeng Li
In January 2013, the real-time hourly average concentrations of six pollutants (CO, NO2, O3, PM10, PM2.5 and SO2) based on data from air quality monitoring stations in major Chinese cities were released to the public. That report provided a good opportunity to publicise nationwide temporal and spatial pollution characteristics. Although several studies systematically investigated the temporal and spatial trends of pollutant concentrations, the relation between air pollution and multi-scale meteorological conditions and their spatial variations on a nationwide scale remain unclear...
January 22, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28110730/the-effect-of-particulate-matter-size-on-cardiovascular-health-in-taipei-basin-taiwan
#19
Hsuan-Chia Yang, Shu-Hao Chang, Richard Lu, Der-Ming Liou
BACKGROUND: Although the overall effect of particulate matter (PM) on cardiovascular disease (CVD) has been previously documented, the effect of different PM sizes (PM10, PM2.5-10 and PM2.5) has not been well studied. This study estimates the effect of different PM sizes on the incidence of CVD in Taipei, Taiwan. METHODS: We collected outpatients with CVD from 2006 to 2010 and data on the concentrations of air pollutants such as PM10, PM2.5-10, PM2.5, sulfur dioxide, carbon monoxide, nitrogen dioxide, and ozone...
December 2016: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28108116/maternal-exposure-to-ambient-air-pollution-and-risk-of-early-childhood-cancers-a-population-based-study-in-ontario-canada
#20
Éric Lavigne, Marc-André Bélair, Minh T Do, David M Stieb, Perry Hystad, Aaron van Donkelaar, Randall V Martin, Daniel L Crouse, Eric Crighton, Hong Chen, Jeffrey R Brook, Richard T Burnett, Scott Weichenthal, Paul J Villeneuve, Teresa To, Sabit Cakmak, Markey Johnson, Abdool S Yasseen, Kenneth C Johnson, Marianna Ofner, Lin Xie, Mark Walker
BACKGROUND: There are increasing concerns regarding the role of exposure to ambient air pollution during pregnancy in the development of early childhood cancers. OBJECTIVE: This population based study examined whether prenatal and early life (<1year of age) exposures to ambient air pollutants, including nitrogen dioxide (NO2) and particulate matter with aerodynamic diameters ≤2.5μm (PM2.5), were associated with selected common early childhood cancers in Canada...
January 17, 2017: Environment International
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