NUMBER OF INHALED PARTICLES Avg particle burden of urban atmosphere 10 particles/liter Respired volume in man=1 liter/min Therefore, 105 particles are inhaled/min 10% of the inhaled particles are deposited in the lungs Therefore, 104 particles are deposited in the lungs per mIn. 5x 10% particles/yr
NUMBER OF INHALED PARTICLES NUMBER OF INHALED PARTICLES Avg. particle burden of urban atmosphere: Avg. particle burden of urban atmosphere: 10 5 particles/liter particles/liter Respired volume in man = 1 liter/min. Respired volume in man = 1 liter/min. Therefore, 10 Therefore, 10 5 particles are inhaled/min. particles are inhaled/min. 10% of the inhaled particles are deposited in the 10% of the inhaled particles are deposited in the lungs. Therefore, 10 Therefore, 10 4 particles are deposited in the lungs particles are deposited in the lungs per min. per min. 5 x 10 9 particles/yr. particles/yr
Titanium Wear Debris Images removed due to copyright considerations Co-Cr Particles
Titanium Wear Debris Images removed due to ved due to copyright considerations copyright considerations Co-Cr Particles