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Hi Everyone, Please join us for our next SOCAAR Seminar on: Wednesday, April 3, 2024 3:00PM - 4:00PM EDT With Dr. Robert Healy Senior Science Advisor, Air Quality Ontario Ministry of the Environment, Conservation and Parks (MECP) Title: Source identification and apportionment of industrial volatile organic compounds through mobile monitoring Abstract: Despite a decline in emissions of its precursors in recent decades, ground-level ozone remains an air quality issue in southern Ontario. The Michigan-Ontario Ozone Source Experiment (MOOSE) was a multi-organization field campaign aimed at studying ozone and its precursors in the border region. Ontario’s participation in the MOOSE study involved investigating industrial emissions of volatile organic compounds (VOCs) using a mobile monitoring platform. Positive matrix factorization (PMF), a tool typically used to apportion air pollutants to their respective sources using monitoring data collected at fixed sites, was applied to high time-resolution VOC data collected using the mobile laboratory. Monitoring was performed over a five-day period in an industrialized airshed in southwestern Ontario containing refineries, chemical production facilities and a chemical waste disposal facility. PMF factors associated with petroleum, chemical waste and rubber production were identified and ambient mixing ratios of selected VOCs were apportioned to local and background sources. Fugitive emissions, predominantly associated with storage, were found to be the dominant local contributor to ambient benzene measured while mobile. The approach applied here facilitates the apportionment of VOCs to local sources in complex industrial environments at high spatial and temporal resolution. This information can be used to pinpoint fugitive source locations and to inform VOC emission abatement actions. ________________________________________________________________________________ Microsoft Teams Need help?<https://aka.ms/JoinTeamsMeeting?omkt=en-US> Join the meeting now<https://teams.microsoft.com/l/meetup-join/19%3ameeting_MGVjNWI0MjQtMjdmYS00OTNhLTk1OGQtNzhjNGNmMjIzNjBj%40thread.v2/0?context=%7b%22Tid%22%3a%2278aac226-2f03-4b4d-9037-b46d56c55210%22%2c%22Oid%22%3a%2276a2f469-c5cc-446a-8132-c4bf6f5856ed%22%7d> Meeting ID: 234 317 205 915 Passcode: UubSfx ________________________________ Dial-in by phone +1 647-794-1609,,35123137#<tel:+16477941609,,35123137> Canada, Toronto Find a local number<https://dialin.teams.microsoft.com/d82c5eb5-d575-428c-bac3-869ecf09d547?id=35123137> Phone conference ID: 351 231 37# For organizers: Meeting options<https://teams.microsoft.com/meetingOptions/?organizerId=76a2f469-c5cc-446a-8132-c4bf6f5856ed&tenantId=78aac226-2f03-4b4d-9037-b46d56c55210&[log in to unmask]&messageId=0&language=en-US> | Reset dial-in PIN<https://dialin.teams.microsoft.com/usp/pstnconferencing> ________________________________________________________________________________