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.
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