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HI Natalie, Thanks for publicizing the seminar. It was very well attended! Miriam On 3/22/2016 11:57 AM, Natalie Leung wrote: > Hi everyone, > Just a friendly reminder for our SOCAAR Seminar Today at 4PM. > ---------------------------- > Hi Everyone, > SOCAAR is pleased to announce our next seminar: > *Tuesday**, March 22, 2016* > *4 – 5 PM > **200 College Street, **WB 215* > *The influence of clothing on exposure to methamphetamine, phthalates > and nicotine* > *Glenn Morrison* > *Professor > *Civil, Architectural and Environmental Engineering > Missouri University of Science & Technology > Analyses of exposure to indoor air pollutants focus primarily on > inhalation of gases and particles. However, other routes of exposure > can become important for lower volatility chemicals. In this seminar, > clothing is investigated as a vehicle for concentrating lower > volatility organic species such as methamphetamine, phthalates and > nicotine, which can then be taken up by oral or dermal routes. > Methamphetamine is an example of a highly water (and saliva) soluble > compound that can become highly concentrated in clothing simply by > air-to-fabric transfer. Toddlers that mouth fabrics in a house with > even very-low concentrations of methamphetamine can ingest a > substantial dose. We also hypothesized that wearing clothing should > increase dermal uptake if the fabric was first allowed to equilibrate > with certain SVOCs present in indoor air. Simple mass transport models > demonstrate that close-fitting clothing would reduce external > mass-transport resistance and increase uptake relative to bare skin. > To experimentally assess the effect, we measured uptake of selected > airborne phthalates for an individual wearing clean clothes or > air-exposed clothes and compared these results with dermal uptake for > bare-skinned individuals under otherwise identical experimental > conditions. When compared against the average results for bare-skinned > participants, clean clothes were protective, whereas clothes exposed > to phthalates dramatically increased dermal uptake of DEP and DnBP. > Preliminary experiments with nicotine also show that clothing is also > likely to contribute to dermal dose in environments subject to tobacco > smoke or vaping. > If you are unable to join us for the seminar in person, we will be > broadcasting the presentations live during the seminar using > GoToMeeting software. Please feel free to join us online using a > web-browser or by calling in and using the webviewing software. If you > do decide to join us, please remember to mute your microphone. If you > have any questions during the meeting you are welcome to contact me by > email, or by using the GoToMeeting chat. > 1. Please join my meeting. > _https://global.gotomeeting.com/join/952139277_ > 2. Use your microphone and speakers (VoIP) - a headset is > recommended. Or, call in using your telephone. > Dial +1 (647) 497-9350 > Access Code: 952-139-277 > Audio PIN: Shown after joining the meeting > Meeting ID: 952-139-277 -- Miriam Diamond Department of Earth Sciences University of Toronto 22 Russell Street Toronto, Ontario, CANADA M5S 3B1 Tel: 01-416-978-1586 [log in to unmask]