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ORGANIZER;CN=Nida Shams:MAILTO:[log in to unmask]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN="SOCAAR-l:
Southern Ontario Centre for Atmospheric Aerosol Research":MAILTO:SOCA
[log in to unmask]
ATTACH:CID:[log in to unmask]
DESCRIPTION;LANGUAGE=en-US:SOCAAR is pleased to announce the seminar for Ju
ly 2019:\n\nWednesday\, July 24\, 2019\n3:00 – 4:00 PM\n200 College Stre
et\, WB 407\nNew perspectives on sources of reactive gas-phase organic com
pounds & the chemical complexity of secondary organic aerosol\nDREW R. GEN
TNER\nAssociate PROFESSOR\nCHEMICAL & ENVIRONMENTAL ENGINEERING\nYALE UNIV
ERSITY\nAbstract: Gas-phase organic compounds (including volatile organic
compounds\; VOCs) are key precursors to secondary organic aerosol (SOA) an
d tropospheric ozone. Through several bottom-up approaches\, we evaluate t
he evolving role of non-combustion-related emissions in urban air quality\
, and demonstrate that non-combustion-related sources now contribute a maj
or\, but poorly-characterized fraction of SOA and ozone precursors from an
thropogenic sources. We present an expanded framework for classifying vola
tile\, intermediate\, and semi-volatile emissions from this diverse array
of sources that emphasizes a life cycle approach over longer timescales an
d multiple separate emission pathways. We also perform an extensive untarg
eted molecular-level intercomparison of SOA from three diverse field sites
and an environmental chamber. Despite similar bulk composition\, we repor
t large molecular-level variability between multi-hour organic aerosol sam
ples at each site\, with 66% of compounds differing between consecutive sa
mples. Through observations and model results\, we evaluate the roles of e
missions\, chemical age\, and oxidation conditions in driving this variabi
lity\, and its potential implications.\n\nIf you are unable to join the me
eting in person\, please join this meeting from your computer\, tablet or
smartphone. https://global.gotomeeting.com/join/607383413\n\nYou can also
dial in using your phone. For supported devices\, tap a one-touch number b
elow to join instantly.\n\nCanada: +1 (647) 497-9391\n- One-touch: tel:+16
474979391\,\,607383413#\n\nAccess Code: 607
-383-413\n\nNew to GoToMeeting? Get the app now and be ready when your fir
st meeting starts: https://global.gotomeeting.com/install/607383413\n
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SUMMARY;LANGUAGE=en-US:GoToMeeting Invitation - SOCAAR Seminar - Drew Gentn
er
DTSTART;TZID=Eastern Standard Time:20190724T150000
DTEND;TZID=Eastern Standard Time:20190724T160000
CLASS:PUBLIC
PRIORITY:5
DTSTAMP:20190718T193900Z
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:0
LOCATION;LANGUAGE=en-US:UofT Wallberg Building - 200 College Street\, Room
407
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