This study assessed inhalation exposure to particulate matter (PM₁)-bound mercury (Hgp) and PM₁-bound polycyclic aromatic hydrocarbons (PAHs) among university students. For this purpose, simultaneous indoor (I) and outdoor (O) measurements were taken from two Polish technical universities (in Gliwice and Warsaw) located in distinct areas with respect to ambient concentrations and major sources ...

Particulate matter is defined as a mixture of airborne solid particles and liquid droplets that can be inhaled and may cause serious health problems. Such elements are currently measured utilizing air quality monitoring devices that provide information on PM 10 and PM 2.5 levels giving information on pollution levels. However, many difficulties are encountered in the determination of nanosized ...

Background: The appropriate colon cleansing is a major determinant of quality of colonoscopy. The aim of this study was to compare the efficacy and tolerability of the morning (AM) PEG (polyethylene glycol) solution to previous-evening (PM) PEG solution for the afternoon colonoscopy. Methods: This comparative study compared the AM to PM prep for afternoon outpatient colonoscopy. The subjects r...

Background: Pneumomediastinum (PM) is caused by alveolar rapture. If air leak persists, subcutaneous emphysema occurs. The PM and subcutaneous emphysema have various etiologies. Common causes are respiratory tract infections and asthma exacerbations. Rarely, the PM occurs secondary to foreign body aspiration, and the life-threatening complications will occur without proper treatment. Case repo...

lack of adequate organic matter (om) in the agricultural soils of iran is responsible for the poor physical condition of these soils. thus, increasing soil om is very important. on the other hand, the eutrophication of surface water caused by continuous use of phosphorus (p) fertilizer has created an interest in the combined use of organic wastes and p fertilizer. hence, the present study was u...