نتایج جستجو برای: ambient air
تعداد نتایج: 245692 فیلتر نتایج به سال:
We examined the degree of airway obstruction that developed in eight asthmatics who exercised while breathing air under four conditions: (a) ambient room temperature and water content; (b) body temperature and ambient water content; (c) ambient room temperature fully saturated; and (d) body temperature fully saturated. These test conditions were performed in random order. Multiple aspects of pu...
the main sources of human exposure to trace metals for non-occupationally exposed individualsare inhalation and ingestion. because the absorption rates of the metals by inhalation are significantly higher (up to 50-60%) than those by ingestion (between 3% and 10%), determination of trace metals in ambient air samples is of special interest. the main purpose of this study was to determine fe, zn...
ABSTRACT Cotton dust is one of the chemical agents that cause air pollution in textile workshops. An investigation was done to measure cotton dust concentration in Mazandaran Province. 37 samples were collected by personal samplers devices and whatman filter papers of worker's inhalation zone of ambient air that contained total dust. 40 samples were collected by whatman filter papers and ho...
BACKGROUND Growing urbanisation and population requiring enhanced electricity generation as well as the increasing numbers of fossil fuel in Thailand pose important challenges to air quality management which impacts on the health of the population. Mortality attributed to ambient air pollution is one of the sustainable development goals (SDGs). We estimated the spatial pattern of mortality burd...
background : heavy metals and pah s in flue gas have received considerable attention in recent years due to their mutagenic or carcinogenic properties. pah s are products of incomplete combustion of carbonaceous compounds at high temperatures. heavy metals are released into the ambient air from the same sources as those earlier mentioned for pah s . the present study was carried out to investig...
Background & Objectives: The effects of air pollutants on respiratory mortality and morbidity are among the major concerns today. Few studies have been published on the association between mortality and air pollution in Iran. Methods: This study was undertaken in Kerman, Iran. Mortality data was inquired from the Kerman City Health Authority (from March 2006 till Sept 2010) and air pollution da...
the main sources of human exposure to trace metals for non-occupationally exposed individualsare inhalation and ingestion. because the absorption rates of the metals by inhalation are significantly higher (up to 50-60%) than those by ingestion (between 3% and 10%), determination of trace metals in ambient air samples is of special interest. the main purpose of this study was to determine fe, zn...
To determine the distribution of lead in ambient air of Hamadan, 100 samples were taken in different places from December 1997 until June 1998. The places of samples collection , were divided to three locations in street (high traffic, medium traffic and...
Air pollution is one of the major threats to environment in the present time. Increase in degree of urbanization is a major cause of this air pollution. Due to urbanization, vehicular activities are continuously increasing at a tremendous rate. Mobile or vehicular pollution is predominantly degrading the air quality worldwide. Thus, air quality management is necessary for dealing with this seve...
Ambient Air Pollution and Stroke Print ISSN: 0039-2499. Online ISSN: 1524-4628 Copyright © 2014 American Heart Association, Inc. All rights reserved. is published by the American Heart Association, 7272 Greenville Avenue, Dallas, TX 75231 Stroke published online October 9, 2014; Stroke. http://stroke.ahajournals.org/content/early/2014/10/09/STROKEAHA.114.003130.citation World Wide Web at: The o...
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