Laser Generated Air Contaminants

Laser plume may contain carcinogens mutagens irritants and fine dusts.

Laser generated air contaminants.

Laser generated airborne contaminants can form during disruption of tissue cells by heat lasers electrosurgical generators mechanical manipulation rotary devices saws or ultrasonic instruments. Particles 0 3um in diameter umd generated during the laser cutting exceeded background particle levels by a factor of ten or more. Fused silica from cutting quartz. Technologists are exposed to laser generated air contaminants lgacs orelectrosurgicalsmoke 1 thelasersurgicalsmoke or plume is generated as the result of target cells being heated to the point of boiling causing the membranes to rupture as well as pyrolysis and combustion of the target material 2.

Laser generated air contaminants polycyclic aromatic hydrocarbons from mode burns on poly methyl methacrylate type polymers. Laser fumes according to carnegie mellon university laser beams are hazardous during the cutting or engraving process because laser generated air contaminants are released. Characteristics of the contaminants depend upon the target material cover gas and beam irradiance. Heavy metals from etching.

Analysis of the plume produced has shown the presence of gaseous toxic compounds bio aerosols dead and live cellular material and viruses. Most compounds detected in the thermal desorption air samples were also detected in the bulk sample and the residue was acidic ph 3. Places where irradiances exceed 10 000 w cm2 shall be enclosed to the maximum extent practical and be properly ventilated. Nonetheless when biological tissue is subjected to laser radiation the target cells can be vaporized resulting in the aerosolization of their contents and the subsequent exposure of health care workers to laser generated air contaminants lgacs.

Laser generated air contaminants lgacs when the beam irradiance exceeds 1 000 w cm2 an evaluation shall be performed by an industrial hygienist to identify engineering controls for laser generated air contaminants. Pac lgac produced during surgical and aesthetic procedures are a result of the vaporization or disruption of tissue at the cellular level. Hydrogen cyanide and benzene from cutting of aromatic polyamide fibers. They also contain carbon monoxide polyaromatic hydrocarbons and various toxic gases and vapours.

Plume and airborne contaminants pac. Harmful emissions are typically associated with class 3b or 4 lasers. Benzene from cutting polyvinyl chloride.