نتایج جستجو برای: air sampling

تعداد نتایج: 412201  

2010
Santosh Rani Agrawal Hak-Joon Kim Yong Won Lee Jung-Ho Sohn Jae Hyun Lee Yong-Jin Kim Sung-Hwa Lee Chein-Soo Hong Jung-Won Park

PURPOSE The effects of air cleaners on the removal of airborne indoor allergens, especially house dust mites (HDM), are still controversial. The objective of this study is to evaluate the effect of an air cleaner with an electrostatic filter on the removal of airborne mite allergens. MATERIALS AND METHODS A dried HDM culture medium that contained mite body particles and excretions was dispers...

Journal: :International Journal of Research in Engineering and Technology 2015

Journal: :Transportation Research Part E: Logistics and Transportation Review 2016

Journal: :Mutagenesis 2013
Pavel Rossner Vlasta Svecova Jana Schmuczerova Alena Milcova Nana Tabashidze Jan Topinka Anna Pastorkova Radim J Sram

The health of human populations living in industrial regions is negatively affected by exposure to environmental air pollutants. In this study, we investigated the impact of air pollution on a cohort of subjects living in Ostrava, a heavily polluted industrial region and compared it with a cohort of individuals from the relatively clean capital city of Prague. This study consisted of three samp...

Journal: :Journal of clinical pathology 1996
J G Cunniffe S Whitby-Strevens M H Wilcox

AIMS To determine the effect of pH changes occurring in cerebrospinal fluid (CSF) after sampling on the viability of meningitis causing bacteria, and on the performance of agglutination assays used for the rapid detection of bacterial antigens. METHODS The pH of CSF collected via lumbar puncture was measured by various methods, and the effects of the following different incubation conditions ...

2018
Liz Tulum Zoë Deag Matthew Brown Annette Furniss Lynn Meech Anja Lalljie Stella Cochrane

Background Exposure to airborne proteins can be associated with the development of immediate, IgE-mediated respiratory allergies, with genetic, epigenetic and environmental factors also playing a role in determining the likelihood that sensitisation will be induced. The main objective of this study was to determine whether airborne concentrations of selected common aeroallergens could be quanti...

ژورنال: سلامت کار ایران 2017

Background and aims: Needle trap micro-sampler, with all advantages of microextraction techniques such as solid phase microextraction, owing to the ease of use and becoming a powerful method for air pollution monitoring. In this study, the performance of needle trap micro-sampler device with silica composite of carbon nanotubes, prepared using sol-gel technique, was investigated for health moni...

Journal: :Bulletin of the Pan American Health Organization 1976
G H Dávila

Ciudad Juárez (Chihuahua) and El Paso (Texas), two cities on the U.S.-Mexico border, form a single environmental system in which the same natural resources, especially air and water, are shared. It also constitutes a single metropolitan area which is characterized by high rates of pipulation growth, economic development, and urban expansion, all these factors mitigating against air quality. Ear...

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