نتایج جستجو برای: pollution measurement

تعداد نتایج: 508273  

Journal: :Journal of the Air Pollution Control Association 1978

Journal: :Journal of Sensor and Actuator Networks 2020

Journal: :jundishapur journal of health sciences 0
farhad forouharmajd department of occupational health engineering, school of public health, isfahan university of medical sciences, isfahan, ir iran mitra shabab department of occupational health engineering, school of public health, isfahan university of medical sciences, isfahan, ir iran; department of occupational health engineering, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran; occupational health engineering department, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran. tel: +98-6133738269, fax: +98-33738282

conclusions according to the factory noise map, except for the control rooms with 81 dba noise, other cases of measuring stations were higher than the standard exposure of 85 dba noise. as a result, the implementation of control strategies, such as inspection and performance of control systems and insulation of the control room to prevent unnecessary exposure noise, are necessary. background st...

Journal: :Epidemiology 2008
Thomas Götschi Joachim Heinrich Jordi Sunyer Nino Künzli

Lung function is an important measure of respiratory health and a predictor of cardiorespiratory morbidity and mortality. Over the past 2 decades, more than 50 publications have investigated long-term effects of ambient air pollution on lung function with most finding adverse effects. Several studies have also suggested effects from traffic-related air pollution. There is strong support for air...

2015
Prabhat Kumar Rai Biku Moni Chutia

Particulate matter (PM) is one of the most harmful pollution components widely present in the environment. It has been demonstrated that magnetic measurement is an important means in PM pollution study through plant leaves. Plants species are found as effective biomonitors and may act as natural filters by trapping and retaining PM on their surfaces. In the present study, Ficus bengalensis tree...

Journal: :iranian journal of environmental sciences 0
a. r. noorpoor associate professor, graduate faculty of environmental, university of tehran, tehran, iran m. bayatian phd student in professional hygiene, faculty of public health, islamic azad university, tehran, iran s. motaghed msc student in chemical engineering, university of petroleum, tehran, iran a. jamshidi moghadam bsc student in professional hygiene, university of medical science, tehran, iran n. rahmati msc. student in environmental science, faculty of science and research, islamic azad university, tehran, iran

we investigated the issue of noise pollution in the bidboland gas refineryby noise measurement and surveys. the bidboland gas refinery has several process units.the sound pressure levels were measured at several places, such as units of 200, 300,400, 500, boiler, powerhouse area, cooling towers pumps, and maintenance area, and thecorresponding noise maps were produced by using sound plan softwa...

Journal: :Biostatistics 2016
Stacey E Alexeeff Raymond J Carroll Brent Coull

Spatial modeling of air pollution exposures is widespread in air pollution epidemiology research as a way to improve exposure assessment. However, there are key sources of exposure model uncertainty when air pollution is modeled, including estimation error and model misspecification. We examine the use of predicted air pollution levels in linear health effect models under a measurement error fr...

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