Urinary metabolites levels in workers exposed to chlorobenzene.

Urinary metabolites levels in workers exposed to chlorobenzene.

Chlorobenzene is a colorless volatile compound widely used as an organic solvent or a chemical intermediate. There is, however, a potential risk for people engaged in the manufacture and the handling of this compound. The threshold limit value of the time-weighted average (TLV-TWA) for chlorobenzene in air has been set at 75 ppm (350 mg/m3).1) Animals exposed to chlorobenzene excrete this compo...

Survey on Urinary Levels of Aflatoxins in Professionally Exposed Workers

Feed mill workers may handle or process maize contaminated with aflatoxins (AFs). This condition may lead to an unacceptable intake of toxins deriving from occupational exposure. This study assessed the serological and urinary levels of AFs in workers exposed to potentially contaminated dusts in two mills. From March to April 2014, blood and urine samples were collected, on Monday and Friday mo...

urinary β2 microglobulin in workers exposed to arc welding fumes

welding is a process in which two or more metals are attached by the use of heat and, in some cases, pressure. direct exposure and inhalation of welding fumes causes acute and chronic side effects in humans. kidney damage is one of these important side effects. β2 microglobulin is an 11.8 kilodalton protein and levels increase in the case of some inflammatory and viral diseases, or kidney malfu...

Urinary 1-Hydroxypyrene Levels in Workers Exposed to Polycyclic Aromatic Hydrocarbon from Rubber Wood Burning

BACKGROUND Urinary 1-hydroxypyrene (1-OHP) was selected as a biomarker of polycyclic aromatic hydrocarbons (PAHs) to explore the accumulation level in the bodies of workers at rubber smoke sheet factories in southern Thailand. METHODS Spot urine samples were taken from four groups of workers from June 2006 to November 2007. The nonexposure or control groups included habitual cigarette smokers...

Estimation of solvent concentrations in ambient air from urinary metabolite levels of workers exposed to solvents.