Air Quality Monitoring Of Memphis And Surrounding Areas

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Air Quality Monitoring in Memphis and Surrounding Areas in 2014, Analyzed by Gas Chromatography/Mass Spectrometry (GC/MS) By Ebtsam Seteh Abstract Volatile organic compounds (VOCs) in the atmosphere have been determined to be a human risk factor in urban, suburban, and industrial environments. This study aims to characterize the distribution and concentrations of ambient air toxics in Memphis and identify major sources of VOCs. During four seasons in 2014, about 530 ambient air samples have been collected in various locations in Memphis and surrounding areas for the analysis of VOCs with the TO-15 method. GC-MS was used with a preconcentrator outfitted with a glass bead trap and a Tenax trap in cryogenic mode to analyze the…show more content…
CHAPTER I INTRODUCTION Ambient air in urban, rural, and industrial areas contains an array of volatile organic compounds (VOCs). They spread in the air as gases from some solids or liquid materials. Society and environment are directly healthy affected in short- and long-term by VOCs at trace level concentrations (2). Air pollutants toxic are class of chemicals that may consider health problems in a significant way. There are many chemical pollutants released into the ambient air from various sources, such as power plants, and spraying pesticides. There are two types of air pollutants that are primary pollutants, which are emitted directly into the air from pollution sources, and secondary pollutants, which are from primary pollutants, but after they passing from many of the chemical changes in the atmosphere (12). The Environmental Protection Agency (EPA) has compiled a list of 187 hazardous air pollutants (HAPs). There are 30 HAPs threaten health dramatically in metropolitan areas, such as benzene, 1,3-dichloropropene, 1,3-butadiene, and chloroform that are classified as toxins (3). In accordance with the 2007 Environmental Pollution, VOCs affect adversely on health and cause many diseases, such as immune and neurological damage, cardiovascular diseases, and reproductive and endocrine disorders (8). Several methods have developed for the
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