Orange County NC Website
• Size determines where the <br />particles deposit in our lungs <br />• Concentration determines how <br />many particles deposit in our <br />lungs <br />• Scientific reasons for understanding size and concentration of the <br />aerosols produced by electronic cigarettes <br />• The chemical composition of the particles varies with size and <br />concentration <br />• Size and concentration determine the toxicity of the particles. <br />• User and secondhand exposure is determined by the size, <br />concentration, and composition of the particles <br />