Read by QxMD icon Read

no2 air pollution

Kirthana U Kunikullaya, Ambarish Vijayaraghava, P Asha, Radhika Kunnavil, B V MuraliMohan
BACKGROUND: Literature has shown a significant association between asthma exacerbations and pollutant levels during that time. There is very limited evidence in India, especially Bangalore, for impacts of meteorological changes and pollution on asthma hospital admissions in adults. The objective was to study the impact of air pollution and meteorological parameters on asthma exacerbation in Bangalore. METHODS: This study quantitatively analyzed the relation between acute exacerbations of asthma and related admissions to the hospital with the air pollution and the meteorological conditions during that time...
January 11, 2017: Journal of Basic and Clinical Physiology and Pharmacology
L L Wang, R H Bai, Q Zhang, H Yan
Objective: To compare the differences in the incidence of adverse pregnancy outcome in different area, and confirm if the incidence of adverse pregnancy outcomes is closely associated with air pollution. Methods: A cross-sectional study was conducted in the central urban area and the rural-urban area of Xi'an through a questionnaire survey conducted among the local reproductive women selected through multistage stratified random sampling during 2010-2013, all the reproductive women surveyed were in pregnancy or had definite pregnancy outcomes...
November 10, 2016: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
Yang Song, Xiaoming Wan, Shuoxin Bai, Dong Guo, Ci Ren, Yu Zeng, Yirui Li, Xuewen Li
BACKGROUND: The elevation and dissipation of pollutants after the ignition of fireworks in different functional areas of a valley city were investigated. METHODS: The Air Quality Index (AQI) as well as inter-day and intra-day concentrations of various air pollutants (PM10, PM2.5, SO2, NO2, CO, O3) were measured during two episodes that took place during Chinese New Year festivities. RESULTS: For the special terrain of Jinan, the mean concentrations of pollutants increased sharply within 2-4 h of the firework displays, and concentrations were 4-6 times higher than the usual levels...
2017: PloS One
Rakefet Shafran-Nathan, Yuval, Ilan Levy, David M Broday
Accurate estimation of exposure to air pollution is necessary for assessing the impact of air pollution on the public health. Most environmental epidemiology studies assign the home address exposure to the study subjects. Here, we quantify the exposure estimation error at the population scale due to assigning it solely at the residence place. A cohort of most schoolchildren in Israel (~950,000), age 6-18, and a representative cohort of Israeli adults (~380,000), age 24-65, were used. For each subject the home and the work or school addresses were geocoded...
December 27, 2016: Science of the Total Environment
Rennie Xinrui Qin, Changchun Xiao, Yibin Zhu, Jing Li, Jun Yang, Shaohua Gu, Junrui Xia, Bin Su, Qiyong Liu, Alistair Woodward
Recent evidence suggests that there may be an interaction between air pollution and heat on mortality, which is pertinent in the context of global climate change. We sought to examine this interaction in Hefei, a hot and polluted Chinese city. We conducted time-series analyses using daily mortality, air pollutant concentration (including particulate matter with aerodynamic diameter <10μm (PM10), sulphur dioxide (SO2) and nitrogen dioxide (NO2)), and temperature data from 2008 to 2014. We applied quasi-Poisson regression models with natural cubic splines and examined the interactive effects using temperature-stratified models...
October 28, 2016: Science of the Total Environment
Yafang Cheng, Guangjie Zheng, Chao Wei, Qing Mu, Bo Zheng, Zhibin Wang, Meng Gao, Qiang Zhang, Kebin He, Gregory Carmichael, Ulrich Pöschl, Hang Su
Fine-particle pollution associated with winter haze threatens the health of more than 400 million people in the North China Plain. Sulfate is a major component of fine haze particles. Record sulfate concentrations of up to ~300 μg m(-3) were observed during the January 2013 winter haze event in Beijing. State-of-the-art air quality models that rely on sulfate production mechanisms requiring photochemical oxidants cannot predict these high levels because of the weak photochemistry activity during haze events...
December 2016: Science Advances
Caihong Xu, Min Wei, Jianmin Chen, Xinfeng Wang, Chao Zhu, Jiarong Li, Lulu Zheng, Guodong Sui, Weijun Li, Wenxing Wang, Qingzhu Zhang, Abdelwahid Mellouki
In January 2014, severe haze episodes which sweep across Chinese cities have attracted public concern and interest at home and abroad. In addition to the physicochemical properties of air pollutants, bacteria are thought to be responsible for the spread of respiratory diseases and various allergies. We attempted the bacterial characterization of submicron particles (PM0.18-0.32, PM0.32-0.56, and PM0.56-1) under severe haze episodes using high-throughput sequencing and real-time quantitative PCR detecting system based on 21 samples collected from January to March 2014 at Ji'nan, China...
December 22, 2016: Science of the Total Environment
Joanna Kobza, Mariusz Geremek
Many large neighbourhoods are located near heavy-traffic roads; therefore, it is necessary to control the levels of air pollution near road exposure. The primary air pollutants emitted by motor vehicles are CO, NO2 and PM. Various investigations identify key health outcomes to be consistently associated with NO2 and CO. The objective of this study was the measurement-based assessment for determining whether by high-traffic roads, such as motorways and express ways, and the concentrations of CO and NO2 are within normal limits and do not pose threat to the local population...
January 2017: Environmental Monitoring and Assessment
Scott D Chambers, Ki-Hyun Kim, Eilhann E Kwon, Richard J C Brown, Alan D Griffiths, Jagoda Crawford
The combined influences of recent mitigation measures on urban air quality have been assessed using hourly observations of the criteria air pollutants (NO, NO2, O3, CO, and SO2) made from the Yongsan district of Seoul, Korea, over 26years (1987 to 2013). A number of data selection criteria are proposed in order to minimize variability associated with temporal changes (at diurnal, weekly, and seasonal timescales) in source strengths, their spatial distribution, and the atmospheric volume into which they mix...
December 20, 2016: Science of the Total Environment
Ole Raaschou-Nielsen, Marie Pedersen, Massimo Stafoggia, Gudrun Weinmayr, Zorana J Andersen, Claudia Galassi, Johan Sommar, Bertil Forsberg, David Olsson, Bente Oftedal, Norun H Krog, Gunn Marit Aasvang, Andrei Pyko, Göran Pershagen, Michal Korek, Ulf De Faire, Nancy L Pedersen, Claes-Göran Östenson, Laura Fratiglioni, Mette Sørensen, Kirsten T Eriksen, Anne Tjønneland, Petra H Peeters, Bas Bueno-de-Mesquita, Michelle Plusquin, Timothy J Key, Andrea Jaensch, Gabriele Nagel, Bernhard Föger, Meng Wang, Ming-Yi Tsai, Sara Grioni, Alessandro Marcon, Vittorio Krogh, Fulvio Ricceri, Carlotta Sacerdote, Enrica Migliore, Ibon Tamayo, Pilar Amiano, Miren Dorronsoro, Ranjeet Sokhi, Ingeborg Kooter, Kees de Hoogh, Rob Beelen, Marloes Eeftens, Roel Vermeulen, Paolo Vineis, Bert Brunekreef, Gerard Hoek
Several studies have indicated weakly increased risk for kidney cancer among occupational groups exposed to gasoline vapors, engine exhaust, polycyclic aromatic hydrocarbons and other air pollutants, although not consistently. It was the aim to investigate possible associations between outdoor air pollution at the residence and the incidence of kidney parenchyma cancer in the general population. We used data from 14 European cohorts from the ESCAPE study. We geocoded and assessed air pollution concentrations at baseline addresses by land-use regression models for particulate matter (PM10 , PM2...
December 22, 2016: International Journal of Cancer. Journal International du Cancer
Jinhui Li, Shengzhi Sun, Robert Tang, Hong Qiu, Qingyuan Huang, Tonya G Mason, Linwei Tian
BACKGROUND: Short-term exposure to major air pollutants (O3, CO, NO2, SO2, PM10, and PM2.5) has been associated with respiratory risk. However, evidence on the risk of chronic obstructive pulmonary disease (COPD) exacerbations is still limited. The present study aimed at evaluating the associations between short-term exposure to major air pollutants and the risk of COPD exacerbations. METHODS: After a systematic search up until March 30, 2016, in both English and Chinese electronic databases such as PubMed, EMBASE, and CNKI, the pooled relative risks and 95% confidence intervals were estimated by using the random-effects model...
2016: International Journal of Chronic Obstructive Pulmonary Disease
Philippe Collart, Michele Dramaix, Alain Levêque, Yves Coppieters
The aim of the present study is to analyse the age effect on the lag patterns of relative risk of hospitalization for acute myocardial infarction and NO2, PM10 and O3. Daily hospitalizations for AMI during the period 2008-2011 were extracted from administrative data. Analyses were performed using the quasi-Poisson regression model adjusted for seasonality, long-term trend, day of the week and temperature. We observed very different patterns depending on age. For NO2 and PM10, the younger group (25-54 years) shows a more delayed effect in comparison with the two older age groups (55-64 and ≥ 65 years)...
February 2017: International Journal of Environmental Health Research
A Alexandra Chudnovsky, Petros Koutrakis, Alex Kostinski, Susan P Proctor, Eric Garshick
: Satellite imaging has emerged as a method for monitoring regional air pollution and detecting areas of high dust concentrations. Unlike ground observations, continuous data monitoring is available with global coverage of terrestrial and atmospheric components. In this study we test the utility of different sources of satellite data to assess air pollution concentrations in Iraq. SeaWiFS and MODIS Deep Blue (DB) aerosol optical depth (AOD) products were evaluated and used to characterize the spatial and temporal pollution levels from the late 1990s through 2010...
January 2017: Journal of the Air & Waste Management Association
Pongtong Puranitee, Sirinapa Siwarom, Adisak Plitponkarnpim, Wiparat Manuyakorn, Ratchaneewan Sinitkul, Sakda Arj-Ong Vallipakorn
BACKGROUND: This study aimed to assess the association between exposure to indoor air pollution in DCCs (Child Day Care Centers) and the respiratory symptoms of children under 6 years old. METHODS: Air quality data were collected three times regarding seasonal variation. Pollutants measured in 11 DCCs included PM10, CO, NO2, SO2, O3, benzene, bacteria, fungi, and dust mite. The frequency of respiratory symptoms including coughing, rhinitis, and dyspnea were recorded via teacher and parent-report questionnaires...
December 12, 2016: Asian Pacific Journal of Allergy and Immunology
Ana Santurtún, Patricia Bolivar Ruiz, Laura López-Delgado, Arturo Sanchez-Lorenzo, Javier Riancho, María T Zarrabeitia
Stroke, the second cause of death and the most frequent cause of severe disability among adults in developed countries, is related to a large variety of risk factors. This paper assesses the temporal patterns in stroke episodes in a city in Northern Spain during a 12-year period and analyzes the possible effects that atmospheric pollutants and meteorological variables may have on stroke on a daily scale. Our results show that there is an increase in stroke admissions (r = 0.818, p = 0.001) especially in patients over 85 years old...
December 19, 2016: Cardiovascular Toxicology
Ka Lok Chan, Shanshan Wang, Cheng Liu, Bin Zhou, Mark O Wenig, Alfonso Saiz-Lopez
Summertime surface ozone (O3) and related secondary formation of fine particles are the major air quality concerns in the megacity of Shanghai. We performed mobile Cavity Enhanced Differential Optical Absorption Spectroscopy (CE-DOAS) measurements to investigate the spatial distribution of on-road nitrogen dioxide (NO2) concentrations along the Inner Ring Elevated Road (IRER) in Shanghai. The observations show a ratio of 4 between CE-DOAS averaged on-road NO2 and the in-situ ambient measurements, illustrating the strong impact of vehicle emissions over the urban area...
December 14, 2016: Science of the Total Environment
Vítězslav Jiřík, Andrea Dalecká, Veronika Vašendová, Jana Janoutová, Vladimír Janout
BACKGROUND: The long-term exposure to pollutants in ambient air is associated with higher mortality and occurrence of respiratory and cardiopulmonary diseases. The longitudinal cross-section study focuses on the associations between long-term exposures to carcinogenic and non-carcinogenic pollutants and the prevalence and incidence of such specific diseases including immunodeficiencies. METHODS: The data on health status from industrial and non-industrial regions were obtained from health documentation for a 5-year period from 2007 to 2011 and represent the whole population living in polluted (1,249,323 inhabitants) and unpolluted (631,387 inhabitants) regions...
December 15, 2016: Reviews on Environmental Health
Giulia Toti, Ricardo Vilalta, Peggy Lindner, Barry Lefer, Charles Macias, Daniel Price
OBJECTIVES: Traditional studies on effects of outdoor pollution on asthma have been criticized for questionable statistical validity and inefficacy in exploring the effects of multiple air pollutants, alone and in combination. Association rule mining (ARM), a method easily interpretable and suitable for the analysis of the effects of multiple exposures, could be of use, but the traditional interest metrics of support and confidence need to be substituted with metrics that focus on risk variations caused by different exposures...
November 2016: Artificial Intelligence in Medicine
Brian Freeman, Ed McBean, Bahram Gharabaghi, Jesse Thé
Air quality zones are used by regulatory authorities to implement ambient air standards in order to protect human health. Air quality measurements at discrete air monitoring stations are critical tools to determine whether an air quality zone complies with local air quality standards or is non-compliant. This study presents a novel approach for evaluation of air quality zone classification methods by breaking the concentration distribution of a pollutant measured at an air monitoring station into compliance and exceedance Probability Density Functions (PDFs) and then using a Monte Carlo Analysis with the Central Limit Theorem to estimate long term exposure...
December 14, 2016: Journal of the Air & Waste Management Association
Wenwei Ke, Shaojun Zhang, Ye Wu, Bin Zhao, Shuxiao Wang, Jiming Hao
There have been significant advancements in electric vehicles (EVs) in recent years. However, the different changing patterns in emissions at upstream and on-road stages and complex atmospheric chemistry of pollutants lead to uncertainty in the air quality benefits from fleet electrification. This study considers the Yangtze River Delta (YRD) region in China to investigate whether EVs can improve future air quality. The Community Multiscale Air Quality model enhanced by the two-dimensional volatility basis set module is applied to simulate the temporally, spatially, and chemically resolved changes in PM2...
December 23, 2016: Environmental Science & Technology
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"