نتایج جستجو برای: pollution measurement

تعداد نتایج: 508273  

Journal: :Collegium antropologicum 2014
Renata Peternel Ivan Toth Predrag Hercog

In the Republic of Croatia, according to the Air Protection Act, air pollution assessment is obligatory on the whole State territory. For individual regions and populated areas in the State a network has been established for permanent air quality monitoring. The State network consists of stations for measuring background pollution, regional and cross-border remote transfer and measurements as p...

Journal: :Journal of epidemiology and community health 1996
W Dab S Medina P Quénel Y Le Moullec A Le Tertre B Thelot C Monteil P Lameloise P Pirard I Momas R Ferry B Festy

STUDY OBJECTIVE To quantify the short term respiratory health effects of ambient air pollution in the Paris area. DESIGN Time series analysis of daily pollution levels using Poisson regression. SETTING Paris, 1987-92. MEASUREMENTS AND MAIN RESULTS Air pollution was monitored by measurement of black smoke (BS) (15 monitoring stations), sulphur dioxide (SO2), nitrogen dioxide (NO2), particu...

2010
Kathie L. Dionisio Michael S. Rooney Raphael E. Arku Ari B. Friedman Allison F. Hughes Jose Vallarino Samuel Agyei-Mensah John D. Spengler Majid Ezzati

BACKGROUND Sources of air pollution in developing country cities include transportation and industrial pollution, biomass and coal fuel use, and resuspended dust from unpaved roads. OBJECTIVES Our goal was to understand within-neighborhood spatial variability of particulate matter (PM) in communities of varying socioeconomic status (SES) in Accra, Ghana, and to quantify the effects of nearby ...

2005
G. Brulfert J. P. Chollet

Road traffic is a serious problem in the Chamonix Valley, France: traffic, noise and above all air pollution worry the inhabitants. The big fire in the Mont-Blanc tunnel made it possible, in the framework of the POVA project (POllution in Alpine Valleys), to undertake measurement campaigns with and without heavy-vehicle traffic through the Chamonix and Maurienne valleys, towards Italy (before a...

2011
Gretchen T Goldman James A Mulholland Armistead G Russell Matthew J Strickland Mitchel Klein Lance A Waller Paige E Tolbert

BACKGROUND Two distinctly different types of measurement error are Berkson and classical. Impacts of measurement error in epidemiologic studies of ambient air pollution are expected to depend on error type. We characterize measurement error due to instrument imprecision and spatial variability as multiplicative (i.e. additive on the log scale) and model it over a range of error types to assess ...

Journal: :BMC Public Health 2006
Masud Yunesian Fariba Asghari Javad Homayoun Vash Mohammad Hossein Forouzanfar Dariush Farhud

BACKGROUND The harmful effects of urban air pollution on general population in terms of annoying symptoms are not adequately evaluated. This is in contrast to the hospital admissions and short term mortality. The present study protocol is designed to assess the association between the level of exposure to certain ambient air pollutants and a wide range of relevant symptoms. Awareness of the imp...

Journal: :International journal of occupational medicine and environmental health 2015
Mohammad Reza Monazzam Elham Karimi Majid Abbaspour Parvin Nassiri Lobat Taghavi

OBJECTIVES Spatial assessment of traffic noise pollution intensity will provide urban planners with approximate estimation of citizens exposure to impermissible sound levels. They could identify critical noise pollution areas wherein noise barriers should be embedded. The present study aims at using the Geographic Information System (GIS) to assess spatial changes in traffic noise pollution in ...

Journal: :Environmental Health Perspectives 1991
B Brunekreef P L Kinney J H Ware D Dockery F E Speizer J D Spengler B G Ferris

The Clean Air Act requires that sensitive subgroups of exposed populations be protected from adverse health effects of air pollution exposure. Hence, data suggesting the existence of sensitive subgroups can have an important impact on regulatory decisions. Some investigators have interpreted differences among individuals in observed pulmonary function response to air pollution episodes as evide...

2007
Jane E. Clougherty Jonathan I. Levy Laura D. Kubzansky P. Barry Ryan Shakira Franco Suglia Marina Jacobson Canner Rosalind J. Wright

BACKGROUND Disproportionate life stress and consequent physiologic alteration (i.e., immune dysregulation) has been proposed as a major pathway linking socioeconomic position, environmental exposures, and health disparities. Asthma, for example, disproportionately affects lower-income urban communities, where air pollution and social stressors may be elevated. OBJECTIVES We aimed to examine t...

اعتمادی نژاد , سیاوش, علی زاده , احمد, محمدیان , محمود, یزدانی چراتی , جمشید,

Background and purpose: Noise is one of the most harmful factors in the environment. It is also one of the harsh phenomenons in this century that people are exposed to. Exposure to noise higher than threshold limit value could cause some physical and mental disorders. High traffic flow due to recent increase in number of vehicles causes higher noise pollution. There are few studies regarding ...

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