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Deadline : extended until Wednesday, January 26, 2022

Notification of acceptance: Monday January 31, 2022

Instructions

The following must be included in your submission:

• A title that clearly described the session.
• A 300-word description of your proposal. The content should reflect the conference theme.
• Full Contact details of the session organizer(s) – name, address, affiliation, email id, postal address and phone number.

For additional information please contact us at abstracts@iac2022.gr

Special Sessions

Special Session 01

Quantification of health risk from airborne particulate pollutants

Organized by: Paola Crippa, Konstantina Vasilatou

University of Notre Dame, Notre Dame, Indiana, United States of America / Federal Institute of Metrology Metas, Bern, Switzerland

Special Session 02

COVID-19, aerosols, and ventilation

Organized by: Constantinos Sioutas

University of Southern California, Los Angeles, California, United States of America

Special Session 03

Advanced aerosol metrology for atmospheric science and air quality

Organized by: Antonios Tasoglou / Burkhard Beckhoff

RJ Lee Group, Pittsburgh, Pennsylvania, United States of America / Physikalisch-Technische Bundesanstalt, Braunschweig, Germany

Special Session 04

Aerosols in the agriculture and livestock sectors

Organized by: Marco Ravina and Deborah Panepinto / Luca D'Angelo

Turin Polytechnic, Turin, Italy / Lombardy Region Environmental Protection Agency, Milan, Italy

Special Session 05

Oxidative potential of aerosols particles and health risks

Organized by: Pourya Shahpoury / Andrea Arangio / Athanasios Nenes

Department of Chemistry, Trent University, Peterborough, Canada and Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany / Lausanne, Switzerland / Lausanne, Switzerland and Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras, Greece
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Summary

To date, the global SARS-CoV-2 pandemic COVID-19 has resulted in more than 350 million confirmed cases and more than 5.5 million deaths (WHO, 2021). The financial cost of the COVID-19 pandemic associated with lost production and reduced health is estimated at more than $ 20 trillion. One of the biggest oversights of public health authorities in the initial stages of the pandemic was the inability to realize the importance of airborne transmission of the virus despite repeated efforts by the international aerosol community to underscore this avenue of transmission. According to the Centers for Disease Control (CDC) of the US, we now know that over 90% of Covid19 infections occur through airborne transmission.

In this special session, we invite aerosol scientists to submit abstracts for platform and poster presentations on the theme of “”COVID-19 aerosol transmission and indoor air removal””.  Topics of interest include (but are not limited to) Covid19 aerosol dynamics in indoor environments, evaluation of mitigation strategies including face masks, ventilation, and air purification, and case studies exploring the role of factors such as relative humidity and temperature on Covid19 virus survival and transmission.

Summary

Accurate aerosol metrology i.e. dimensional quantification and chemical analysis, is a prerequisite for enforcing regulations, protecting human health, and supporting research on climate change and atmospheric processes.

However, air pollution is a complex metrology challenge that currently lacks traceable measurement and characterization of aerosols in the environment.

To address this, contribution in this proposed session will provide methodological improvements, including calibration guides and reference materials, for the calibration of particle size spectrometers, pollen monitoring instruments and the chemical characterization of ambient aerosols. Suitable contributions are also validation of current developments in the AEROMET II project using field campaigns and the development of portable instruments and software for the measurement of ambient aerosol particle concentrations under variable environmental conditions. Finally, the session also responds to current challenges regarding aerosol instruments used by non-experts. The overall focus will be on the traceable measurement and characterization of aerosols in the environment targeting at new traceable characterization techniques.

Summary

This special session is dedicated to the atmospheric emissions of aerosols from agricultural and livestock activities. In Europe, significant progress has been made over the past 20 years in reducing the emission of anthropogenic pollutants. Despite this, NH3 emissions from agriculture decreased by only 5% from 2005 to 2013, while from 2013 onwards, emissions increased slightly again (+ 3% from 2013 to 2016). Due to its relevant role in acids neutralisation, reactive nitrogen contributes to the formation of atmospheric aerosols participating in gas-to-particle conversion processes. Previous studies showed that during the winter months, the concentration of secondary inorganic aerosols (mainly ammonium nitrate and ammonium sulphate) can account for 40% – 50% of the total PM2.5 mass, with contributions of up to 75% at measurement sites located in agricultural areas.

In agricultural and livestock activities, reducing ammonia and carbon emissions is linked to the correct and efficient management of reactive nitrogen. Possible actions to reduce atmospheric aerosol emissions include: proper management of reactive nitrogen within the production cycle, efficient feeding and housing systems, proper management (storage, treatment and application) of manure, and efficient fertiliser management. The application of modelling techniques can help in this respect. Different modelling approaches can be adopted depending on the scale and focus of the analysis.

This special session aims at collecting relevant contributions on the topic of aerosol emissions into the atmosphere from agricultural and livestock activities, and on the link with new particles formation. Participants are welcome to submit contributions concerning the study of sources, datasets and evolution of aerosol emissions related to agricultural and livestock activities.

Summary

It is well established that global population exposure to outdoor and indoor air pollution leads to millions of premature deaths from respiratory, cardiovascular and other diseases every year. Epidemiological evidence associates the health effects of air pollution to the inhalation of particulate matter, which acts as carrier for a mixture of toxic substances, including metals and organic species. Mounting evidence suggests that the adverse health effects are related to the induction of oxidative stress following the formation of reactive oxygen species (ROS) in the lung and throughout the body. Oxidative potential (OP) has been proposed as a metric for characterizing the potential of pollutants to cause oxidative stress and health outcomes. OP can be quantified using a variety of acellular and cellular assays as well as model simulation. Establishing the relationships between aerosol sources and chemical composition, exposure pathways, biochemical mechanisms, and health outcomes is key for risk assessment of air pollutants and effective air quality management. This session provides a platform for international experts from academia, government, and industry to share their research on the role of OP in the adverse health effects of air pollutants. Submission topics could include: OP of indoor and outdoor aerosols, application of acellular and cellular OP assays, OP and its relation to aerosol chemical and physical characteristics and emission sources, and biological and epidemiological aspects of OP.