In the US, firefighters do not typically wear respiratory protection during overhaul activities, although fitting multi-gas or chemical, biological, radiological and nuclear cartridges to supplied air respirator facepieces has been proposed to reduce exposures. This work developed a method to evaluate the effectiveness of respirator cartridges in smoke that represents overhaul exposures to resi...

In the current work, piezoelectric sensors based on a molecular imprinted polymer (MIP) were obtained for determining formaldehyde in industrial solutions of woodworking plant. The synthesis was carried out directly surface sensor. process two-stage thermoimidization prepolymerization mixture, polyimide formed. For analysis supra-resin part effluent Grafskaya kuhnya LLC (Voronezh) enterprise, w...

OBJECTIVES As a part of the worldwide European Community respiratory health survey, possible relations between symptoms of asthma, building characteristics, and indoor concentration of volatile organic compounds (VOCs) in dwellings were studied. METHODS The study comprised 88 subjects, aged 20-45 years, from the general population in Uppsala, a mid-Swedish urban community, selected by stratif...

A surface-acoustic-wave (SAW) gas sensor with a low detection limit and fast response for volatile organic compounds (VOCs) based on the condensate-adsorption effect detection is developed. In this sensor a gas chromatography (GC) column acts as the separator element and a dual-resonator oscillator acts as the detector element. Regarding the surface effective permittivity method, the response m...

The objective of this study was to investigate the effects of hot water extraction process on the dimensional stability of oriented strand composites. Aspen wood strands were extracted using various severity factor levels. Phenol formaldehyde and polymethylene diphenyl diisocyanate resins were used for production of the oriented strandboard panels. Six panel groups were produced from the extrac...

Pharmaceutical factory buildings (PFBs) are expected to provide indoor environmental performance suitable enhance workers’ well-being and productivity. This study examined the of PFBs in Nigeria towards modeling an enhanced worker’s Fourteen were purposively selected as investigation sites with a field survey conducted Southwest Nigeria. Several types equipment used obtain IAQ data (that is air...

The purpose of this research was to monitor the migration of formaldehyde from a polyethylene glycol (PEG) fill into the gelatin shell of a soft elastic gelatin capsule (SEGC) using near-infrared (NIR) spectrophotometry. SEGCs were filled with five solutions of aqueous formaldehyde in PEG (0, 0.05, 0.10, 0.20, and 0.40 v/v%), stored at ambient conditions for 48 hr, emptied, and scanned in NIR s...