BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4//
BEGIN:VEVENT
UID:20250511T231150EDT-61033Cp3eS@132.216.98.100
DTSTAMP:20250512T031150Z
DESCRIPTION:Abstract:\n\nNanoplastic particles are inadequately characteriz
 ed environmental pollutants with significant adverse effects on aquatic an
 d atmospheric systems. At present\, it is explicitly assumed that environm
 ental nanoplastics (EnvNP) are weathering fragments of microplastic or lar
 ger plastic debris discharged into terrestrial and aquatic environments\, 
 while atmospheric occurrence of EnvNP is solely attributed to aerosolizati
 on by wind and other mechanical forces. However\, sources and emissions of
  unintended EnvNP are poorly understood and are therefore largely unaccoun
 ted for in various risk assessments. This presentation will show that larg
 e quantities of EnvNP may be directly emitted into the atmosphere by a com
 monly used technology to repair sewer pipes in urban areas. This presentat
 ion will highlight our multi-modal chemical characterization studies focus
 ed on the single-particle and molecular-level investigations of compositio
 nal variability of EnvNP emitted from this technology. We suggest that air
 borne emissions of EnvNP from these globally used sewer repair practices m
 ay be prevalent in highly populated urban areas. Airborne emissions of the
 se EnvNP particles may have important implications on air quality and toxi
 cological levels in large urban areas that need to be mitigated.\n\n \n\nB
 io:\n\nThe research activities Dr. Laskin are focused on physical and anal
 ytical chemistry of complex environmental mixtures (i.e.\, atmospheric aer
 osols\, microplastic\, aquatic and soil pollution). His group investigates
  changes in chemical and physical properties of particles and colloids as 
 they evolve due to their multi-phase reactions in laboratory and field exp
 eriments. Comprehensive characterization of particles using an array of co
 mplementary analytical techniques is essential to understand origin\, fate
  and environmental impacts or particles. Research findings of his group ob
 tained in laboratory and field studies are relevant to a number of issues 
 related to environmental chemistry of atmosphere\, aquatic and soil system
 s\, as well as interactions between them.\n
DTSTART:20221206T180000Z
DTEND:20221206T193000Z
LOCATION:Room 10\, Maass Chemistry Building\, CA\, QC\, Montreal\, H3A 0B8\
 , 801 rue Sherbrooke Ouest
SUMMARY:Chemical Society Seminar: - Alex Laskin-Unrecognized Urban Source o
 f Atmospheric Nanoplastic Particles
URL:/chemistry/channels/event/chemical-society-seminar
 -alex-laskin-unrecognized-urban-source-atmospheric-nanoplastic-particles-3
 40125
END:VEVENT
END:VCALENDAR