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ORGANIZER;CN=Natalie Leung:mailto:[log in to unmask]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=LISTSERV.s
ocaar-l:mailto:[log in to unmask]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Maria-Tere
sa Pay-Perez:mailto:[log in to unmask]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=maria.pay@
ub.edu:mailto:[log in to unmask]
ATTACH:CID:[log in to unmask]
DESCRIPTION;LANGUAGE=en-US:Hi Everyone\,\nSOCAAR is pleased to announce our
next SOCAAR Seminar:\n\n\nWednesday\, February 1\, 2023\n3:00PM - 4:00PM
EDT\n\n\n\n\nProf. María-Teresa Pay-Pérez\nAssociate Professor\n\nDepart
ment of Genetic\, Microbiology and Statistics\n\nUniversity of Barcelona\n
Visiting Professor\nSOCAAR – Department of Chemical Engineering and Appl
ied Chemistry\nUniversity of Toronto\n\n\nOzone source apportionment over
Europe\n\n\nIt is well established that in Europe\, high O3 concentrations
are most pronounced in southern/Mediterranean countries due to the more f
avorable climatological conditions for its formation. However\, the contri
bution of the different sources of precursors to O3 formation within each
country relative to the imported (regional and hemispheric) O3 is poorly q
uantified. This lack of quantitative knowledge prevents local authorities
from effectively designing plans that reduce the exceedances of the O3 tar
get value set by the European Air Quality Directive. O3 source attribution
is a challenge because the concentration at each location and time result
s not only from local biogenic and anthropogenic precursors\, but also fro
m the transport of O3 and precursors from neighboring regions\, O3 regiona
l and hemispheric transport and stratospheric O3 injections.\nThis seminar
presents the results of applying a source-oriented source apportionment m
ethod to provide an estimation of the contribution of the largest NOx nati
onal sectors to peak O3 events in southwestern Europe (targeting Spain) re
lative to the contribution of imported (regional and hemispheric) O3. We s
how\, for the first time\, that imported O3 is the largest input to the gr
ound-level O3 concentration in Spain\, accounting for 46 %–68 % of the d
aily mean O3 concentration during exceedances of the European target value
. However\, during stagnant conditions\, the local anthropogenic precursor
s control the O3 peaks in areas downwind of the main urban and industrial
regions (up to 40 % in hourly peaks). We also show that ground-level O3 co
ncentrations are strongly affected by vertical mixing of O3-rich layers pr
esent in the free troposphere. Our results show O3 source apportionment to
be an essential analysis prior to the design of O3 mitigation plans in an
y non-attainment area. Achieving the European O3 objectives in southern Eu
rope requires not only ad hoc local actions but also decided national and
European-wide strategies.\n\n\n\nJoin us\n\nIn Person: 200 College Street
- Wallberg Building - Room 407\n\nOr\nOnline: Microsoft Teams meeting\nJ
oin on your computer\, mobile app or room device\nClick here to join the m
eeting\nMeeting ID: 278 486 268 190\nPasscode: weFv
4C\nDownload Teams | Join on the web\nOr call in (audio only)\n+1 647-794-1609\,\,45383385# Canada\, Toronto\nPhone Conference ID: 453 833 85#\
nFind a local number | Reset PIN\nLearn More |
Meeting options[log in to unmask]&messageId=0&language=en-US>\n_________________________________
_______________________________________________\n\n
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0100000009B96DAB14F5F3A409347688DCDCF3C80
SUMMARY;LANGUAGE=en-US:SOCAAR Seminar - Prof María-Teresa Pay-Pérez
DTSTART;TZID=Eastern Standard Time:20230201T150000
DTEND;TZID=Eastern Standard Time:20230201T160000
CLASS:PUBLIC
PRIORITY:5
DTSTAMP:20230126T144706Z
TRANSP:OPAQUE
STATUS:CONFIRMED
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