background: contemporary development of growing urban communities and increasing the economical and industrial activities in the current century without paying attention to assess the effect of these activities on human health, as the axis of the development, is caused urban air pollution and risks from different pollutant emissions. tehran air pollution has received considerable media coverage...

Understanding the microbial content of the air has important scientific, health, and economic implications. While studies have primarily characterized the taxonomic content of air samples by sequencing the 16S or 18S ribosomal RNA gene, direct analysis of the genomic content of airborne microorganisms has not been possible due to the extremely low density of biological material in airborne envi...

The aim of the study was to assess the level of air pollution by volatile organic compounds (VOCs) in a pig fattening house and in its vicinity. Air samples for chromatographic analysis were taken in the fattening house and in the vicinity of the farm. The air quality study shows that the level of organic gaseous pollutants was twice as high in the fattening house as in the atmospheric air. Alm...

Experimental evidence has shown that certain phthalates can disrupt endocrine function and induce reproductive and developmental toxicity. However, few data are available on the extent of human exposure to phthalates during pregnancy. As part of the research being conducted by the Columbia Center for Children's Environmental Health, we have measured levels of phthalates in 48-hr personal air sa...

A large number of hydrocarbons, halocarbons, and organic nitrates were quantified in whole air samples acquired for the NASA-sponsored GTE missions PEM-Tropics A and B. The samples were collected in electro-polished stainless steel canisters from two aircraft while flying over the Pacific Basin. Two nominally identical multicolumn multidetector gas chromatographic analytical systems were employ...

In April 1995, the U.S. Geological Survey began a study to determine the occurrence and temporal distribution of 49 pesticides and pesticide metabolites in air and rain samples from an urban and an agricultural sampling site in Mississippi. The study was a joint effort between the National WaterQuality Assessment and the Toxics Substances Programs and was part of a larger study examining the oc...

PURPOSE The assessment of the indoor air and walls contamination of fungi at the Kavala Hospital in Greece was made. MATERIAL AND METHODS The study was carried out at the Neonatal Department and Intensive Care Unit and Palliative Care in Kavala Hospital (Greece). Materials for the tests were: the air samples (in front of the building and the selected rooms) and swabs from the walls. The air p...

Exposure to volatile organic compounds (VOCs) from bridge painting was measured in New York City and New Jersey during the summer and fall seasons from 2005 to 2007. The effect of painting activities (paint coating layer, confinement setup, and application method) and meteorological conditions (temperature, humidity, and wind speed) on solvent exposure to aromatic, ketone, ester, and alkane com...

abstract background: bioaerosol is defined as airborne particles such as living organisms include bacteria, fungi and their related metabolites, such as endotoxin. over the recent years, health effects of bioaerosols such as infectious and respiratory diseases, acute toxic effects, allergies and cancer have been considered. the aim of this study was to evaluate the bacterial and fungal concentr...

Background: To determine the atmospheric contamination by pesticides, conducting laboratory studies is necessary before operating field studies. The aim of this research study was to develop an analytical method to sample and simultaneously determine airborne amitraz and its metabolite. Methods: A modified fritted impinger with acetonitrile as the liquid sorbent was used in order to study the...