نتایج جستجو برای: nitrogen dioxide no2

تعداد نتایج: 209424  

Introduction: In hair salons, workers and customers are exposed to high concentrations of several chemical compounds used during the working environment. Volatile Organic Compounds (VOCs), particulate matter (PM10), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), and formaldehyde are the major chemicals that alter the indoor air quality. This study aimed to assess the indoor...

Background and Aims: Air pollution is very important because every human being inhales an average of 10 m3 air. Also air pollution has adverse impacts on human health. The objective of this study is to compare of relative risk and attributable proportion exposure to Nitrogen dioxide in the southwest of Iran. Methods: This descriptive study was conducted in Ahwaz, Kermanshah and Bushehr citie...

2015
Ghassan B. Hamra Francine Laden Aaron J. Cohen Ole Raaschou-Nielsen Michael Brauer Dana Loomis

BACKGROUND AND OBJECTIVE Exposure to traffic-related air pollutants is an important public health issue. Here, we present a systematic review and meta-analysis of research examining the relationship of measures of nitrogen oxides (NOx) and of various measures of traffic-related air pollution exposure with lung cancer. METHODS We conducted random-effects meta-analyses of studies examining expo...

2008
L. N. Lamsal R. V. Martin A. van Donkelaar M. Steinbacher E. A. Celarier E. Bucsela E. J. Dunlea J. P. Pinto

[1] We present an approach to infer ground-level nitrogen dioxide (NO2) concentrations by applying local scaling factors from a global three-dimensional model (GEOS-Chem) to tropospheric NO2 columns retrieved from the Ozone Monitoring Instrument (OMI) onboard the Aura satellite. Seasonal mean OMI surface NO2 derived from the standard tropospheric NO2 data product (Version 1.0.5, Collection 3) v...

2004
Marwan Ghosn Roula Flouty Najat A. Saliba

Levels of indoor nitrogen dioxide (NO2) in a home equipped with butane gas stove and heaters are reported between the months of February and July 2003. Diffusion passive sampling was used for the simultaneous measurements of indoor and outdoor NO2 concentrations. The overall average indoor NO2 concentrations were 15.6 and 22.3 g m 3 for the living room and kitchen, respectively, while that for ...

2012
Akhil Kadiyala

The present study examined the sensitivity of sulfur dioxide (SO2), nitric oxide (NO), and nitrogen dioxide (NO2) concentrations to the important factors affecting air quality inside a public transportation bus. Additionally, this study quantified the in-bus contaminant concentrations in relation to the ranked statistically significant variables. The independent variables to which the monitored...

2016
Andreia Monteiro Raquel Menezes Maria Eduarda Silva

Abstract. Nitrogen dioxide (NO2), is a pollutant that is toxic by inhalation and there is evidence that long-term exposure to this, at high concentrations, has adverse health effects, namely in respiratory and cardiovascular systems. The goal of this study is to characterize the spatial and temporal evolution of NO2 concentration levels, taking into account that environmental data often incorpo...

Journal: :ACS nano 2015
Ahmad N Abbas Bilu Liu Liang Chen Yuqiang Ma Sen Cong Noppadol Aroonyadet Marianne Köpf Tom Nilges Chongwu Zhou

The utilization of black phosphorus and its monolayer (phosphorene) and few-layers in field-effect transistors has attracted a lot of attention to this elemental two-dimensional material. Various studies on optimization of black phosphorus field-effect transistors, PN junctions, photodetectors, and other applications have been demonstrated. Although chemical sensing based on black phosphorus de...

2012
Agnes MM Sonnenschein-van der Voort Yvonne de Kluizenaar Vincent WV Jaddoe Carmelo Gabriele Hein Raat Henriëtte A Moll Albert Hofman Frank H Pierik Henk ME Miedema Johan C de Jongste Liesbeth Duijts

BACKGROUND Air pollution is associated with asthma exacerbations. We examined the associations of exposure to ambient particulate matter (PM10) and nitrogen dioxide (NO2) with the risk of wheezing in preschool children, and assessed whether these associations were modified by tobacco smoke exposure. METHODS This study was embedded in the Generation R Study, a population-based prospective coho...

Journal: :International journal of epidemiology 1997
L S Pilotto R M Douglas R G Attewell S R Wilson

BACKGROUND The human health effects of exposure to indoor nitrogen dioxide (NO2) are unclear, and few studies have examined the effects of short-term peak levels of exposure. METHODS The association between indoor exposure to NO2 and respiratory illness was examined in 388 children aged 6-11 years. The NO2 levels were monitored during winter in 41 classrooms, from four schools with unflued ga...

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