Osmium absorption after osmium tetroxide skin and eye exposure.

Osmium tetroxide is a strong oxidizing agent used in electron microscopy. Eye exposure may cause severe burns, and after inhalation or ingestion damage to the respiratory or gastrointestinal tract occurs. Exposure to osmium and its compounds is extremely rare.

Fine and Ultrafine Aerosol in Ostrava Ambient Air.

Air quality in the Moravian-Silesian Region and especially in the Ostrava agglomeration represents a very important factor influencing the environment and health of the local population. The area has been burdend for more than two centuries with rapid development of the mining industry and related metallurgical and chemical production. As a result, hundreds of tons of pollutants have progressively been released into the atmosphere.

Evaluation of exposure to airborne heavy metals at gun shooting ranges.

Aerosols formed during shooting events were studied with various techniques including the wide range size resolving sampling system Nano-ID(®) Select, followed by inductively coupled plasma mass spectrometry chemical analysis, scanning electron microscopy, and fast mobility particle sizing. The total lead mass aerosol concentration ranged from 2.2 to 72 µg m(-3).

Lacrimal sac dacryoliths (86 samples): chemical and mineralogic analyses.

Background: Because dacryoliths occur at low frequency, few studies have focused on their composition. We aimed to present findings from morphological, chemical, and mineralogic analysis of 86 dacryoliths.

Methods: We studied 86 dacryoliths obtained during 832 dacryocystorhinostomies (DCR) performed for postsaccal obstruction.

Severe cobalt intoxication following hip replacement revision: clinical features and outcome.

Context: Cobalt intoxication has become more frequent due to the wide use of metal hip implants.

Case Details: A 56-year-old male patient underwent total hip prosthesis, with a ceramics-on-ceramics implant. Almost 3 years later, it was replaced by metal implant containing cobalt, chromium, and titanium.