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Thermal comfort in vehicle for the autonomous driving stage
Organizer: Chungyoon Chun (Yonsei University, Korea)

Vehicles have been recently highlighted as another important indoor environment where people spend more time than ever. Along with the accelerated development of self-driving cars, more issues have focused on the optimum thermal comfort for drivers.
In this WS, we will discuss about the future direction of research about thermal comfort in vehicles.

  1. 1.TBD (Shinichi Tanabe)
  2. 2.TBD (Hui Zhang)
Workshop on indoor acid-base chemistry: findings and implications of a Major Review for Indoor Air
Organizer: Yuguo Li (The University of Hong Kong, Hong Kong, China)

This special workshop is based on the first “Major Review,” a new category of invited submission to the Indoor Air journal. This review, entitled “Indoor Acids and Bases,” establishes a foundation for future research to better understand indoor acid-base chemistry and its implications for human health, indoor air quality, and materials damage. Indoor environments contain numerous acidic and basic species. However, there has never before been a systematic review of the state-of-knowledge for this important topic that broadly influences indoor environmental quality.
In this wokshop, we will discuss sources, concentrations, fates, and dynamic behavior of acids and bases in occupied buildings. The session will begin with presentations by the authors of the review (Profs. William W Nazaroff and Charles J. Weschler), followed by discussion with a panel that consists of chemists and building scientists. The panel and participant presentations will highlight future research directions and opportunities for collaboration within the indoor air research community.
The panel will likely include Jon Abbatt, Andrew Ault, Vicky Grassian, Cong Liu, Tunga Salthammer, Jeff Siegel, Barb Turpin and others. The organizer will confirm the final list after confirming their participation in Indoor Air 2020.

  1. 1.Indoor Acids and Bases (William W Nazaroff)
  2. 2.Indoor Acids and Bases (Charles J. Weschler)
Management on School Particulate Matter by Energy and Environment Integrated Management System
Organizer: DongChun Shin (Yonsei Univ. College of Medicine / School Particulate Matter Center for Energy & Environment Harmonization, Korea)
Development of school-customized thermal and air environment integrated management system for fine particulate matter management at the level recommended by WHO to provide a healthy air environment by establishing a fine particulate matter management system at schools
1) Reduction of fine dust generation in industry by applying renewable energy to new schools
2) Institutional improvement and enhancement through improvement plan of school health law
3) Big data-based school data management enables long-term analysis of school dust particles
4) More objective school fine dust using long-term analyzed data
Air cleaner technology trend
Organizer: Korea Air Cleaning Association (Korea)

This workshop provides a detailed technology trend in Air cleaner especially Indoor use, providing the audience information related to overall Air cleaner system with various contamination concerns.

Indoor Air Cleaner Performance Compliance Requirements – Where we are now and what is the future?
Organizer: Alireza Afshari (Aalborg University, Denmark)

Despite of the wide market availability and claims of numerous brands/models of air cleaners, performance testing and compliance requirements are often limited and vary among different countries. The aims of this session are to share state-of-the-art information on the public policies, laws/regulations, standards, guidelines and other incentive programs on the performance requirements for the use of indoor air cleaners in various countries, and to clarify what are mandatary/enforceable and what are voluntary measures. In this session, we will also discuss the future policy development needs. The topic fits the mission of ISIAQ STC22 Air clean-ing.

  1. 1.TBD (Alireza Afshari)
  2. 2.TBD (Wenhao Chen)
  3. 3.TBD (Jinhan Mo)
  4. 4.TBD (Atsuo Nozaki)
  5. 5.TBD (Pawel Wargocki)
Indoor Chemical Human Emissions and Reactivity (ICHEAR)
Organizer: Jonathan Williams (Max Planck Institute for Chemistry, Germany)

With increasing use of low-polluting building materials and furnishings, and construction of energy efficient airtight buildings, emissions from humans are likely to grow in importance. Emissions via breath and skin represent mobile, potent, chemically diverse and highly variable sources of reactive chemicals in indoor spaces. ICHEAR aims to comprehensively characterize the chemical impact of human beings, the single common element in all living spaces. The aim of the program, sponsored by the A.P. Sloan Foundation, is to utilize state-of-the-art measurement techniques to examine the role of humans and their emissions in indoor air chemistry. It investigates the impact of exhaled and dermally emitted human bioeffluents under different conditions comprising human factors (level of clothing, age) and a variety of environmental factors (temperature, relative humidity, ozone). The symposium will, in a series of presentations, summarize the first findings, some of them being first of their kind. First, a comprehensive summary of the climate chamber experiments with human subjects will be presented. This will be followed by presentations on human CO2 emissions, human ammonia emissions, human VOC emissions and their transformations, impact of occupant-initiated chemistry on single-digit nanometer size particle concentrations, bioaerosols, skin surface chemistry and total OH reactivity.

  1. 1.CO2 Emission Rates from Humans at Light Activity (Pawel Wargocki)
  2. 2.Human ammonia emissions as a function of temperature, humidity, clothing coverage, age, and ozone (Menzge Li)
  3. 3.Relative change of the levels of squalene in skin wipes and its dependence on ozone (Sarka Langer)
  4. 4.Ozone-initiated single-digit nanoparticle emissions from humans (Shen Yang)
  5. 5.Influence of clothing on yields of ozone-skin lipid reaction products (Glenn Morrison)
  6. 6.VOC and OH reactivity from human beings (Nijing Wang)
  7. 7.Human emissions of fluorescent biological aerosol particles: Influence of personal and environmental conditions (Dusan Licina)
  8. 8.TBD (Lisa Ernle)
  9. 9.TBD (Nora Zannoni)
  10. 10.TBD (Gabriel Bekö)
  11. 11.TBD (Pawel Misztal)
What are the future filtration technologies of particulate matter or infectious aerosols?
Organizers: Jungho Hwang (Yonsei University, Korea)
Organizers: Jinhan Mo (Tsinghua University, China)

Particulate matter (PM) has emerged as one of the most serious environmental problems, raising great concern. To reduce the amount of outdoor PM which enters indoor environments via ventilation, efficient filtration technologies are needed in public buildings.
The aims of this session are to share the information of recent particle filtration technologies. We will also discuss the new functional filter materials and their fabrication methods. Finally, we try to answer what are the future air filtration technologies for the removal of indoor PM or bioaerosols.

  1. 1.TBD (Jungho Hwang)
  2. 2.TBD (Maosheng Yao)
  3. 3.TBD (Alireza Afshari)
  4. 4.Charge degradation of electret filters with different surface charge densities (Myong Hwa Lee)
  5. 5.TBD (Jinhan Mo)
A Modular Mechanistic Framework for Assessing Human Exposure to Chemicals in Materials, Products and Articles
Organizer: John Little (Virginia Tech, USA)

The new framework for predicting chemical emissions from indoor sources, partitioning among indoor compartments and exposure to humans will be discussed. The framework is the result of a process aimed at achieving consensus regarding what is currently known about SVOC behavior indoors and can serve as the foundation for the development of an open‐source community model that can be used to guide research and implement policies. The workshop will advance this initiative by focusing on the following issues:
1) Uncertain or inconsistent elements of the framework
2) Concerns that arise from stakeholders
3) Integrating the regulatory perspective
4) Describing one or two case studies (including measured data and some chemicals with limited information to test high throughput capacities)
5) Deciding how we organize ourselves (meetings and making decisions)

  1. 1.Introduction to the modular mechanistic framework for assessing human exposure to chemicals and case study (Clara Eichler)
  2. 2.Case study on clothing, SVOCs and transdermal uptake (Glenn Morrison)
  3. 3.Integrating the regulatory perspective on rapid consumer exposure to chemicals (Corinne Mandin)
  4. 4.Knowledge gaps and how to treat them (Ying Xu)
  5. 5.Development of an indoor exposure community model (John Little)
  6. 6.Guided discussion on next steps and the organizational structure of the initiative, including:
    1) How should the community model be developed and funded?
    2) Who should be responsible for maintaining the model?
    3) What programming environment should be used and where should the model be stored?(Charles Weschler, Dustin Poppendieck, Hyeong-Moo Shin and John Little)
Guideline on Adaptive thermal comfort application in building design and operation
Organizers: Runa T. Hellwig (The University of Aalborg University Denmark, Denmark)
Organizers: Despoina Teli (Chalmers University, Sweden)
An adaptive thermal comfort guideline has been developed within the work of Annex 69: “Strategy and practice of adaptive thermal comfort in low energy buildings”. The guideline is based on a framework for adopting adaptive thermal comfort principles in design and operation. The guideline aims to bridge the gap between adaptive thermal comfort theory and real-world building design and operation.

Purpose and method of the workshop
1) to introduce researchers and practitioners to the guideline
2) to discuss challenges in practical application of the adaptive principles
3) Discussion will be held in form of an interactive workshop

1) Introductory presentation on background, framework of the guideline
2) Presentation of important topic addressed in the guideline (understanding adaptive principles, adaptive opportunities design, stakeholder involvement)
3) Interactive Workshop
Sensing Developments and Indoor air quality: putting humans back in the loop
Organizers: Benjamin Hanoune (CNRS/Université de Lille, France)
Organizers: Kwok Wai Tham (National University of Singapore, Singapore)

The advent of small chemical sensors and wearable sensors has prompted new steps in the investigation of IAQ and its drivers, with measurements now taking place with the people, having normal activities, in the rooms.
This potentially shifts the role of occupants from passive objects of study to active participants, and raises new questions such as how to communicate with people, how to involve them in the studies, how to select good candidates, what to expect and learn from them, teach them, how to co-design the experiments…, in short how to benefit for our studies from the presence of humans back in the room.
Yet there are some questions that need to be discussed, including:

• What are recent developments in sensing methodologies for the indoor environment and its effects on occupants?
• What constitutes good sensing plan and design?
• Would the combination of new, usually less accurate and reliable, sensors and more accurate sensors provide a more informative and useful data for assessing the indoor environment and exposure?
• What purpose do wearable sensors achieve, given their ready deployment and potential inaccuracies?
• How do we incorporate “humans in the loop” for IEQ sensing, evaluation and feedback control?
• How should data obtained from various sensors be combined to advance the understanding of the indoor environment, exposure and effects on occupants?

This workshop aims to gather experience and opinions of the attendees so as to document the expectations of the scientific community, to identify the current pitfalls, and to propose best practices which could be later summarized as a white book or a paper.

  1. 1.Sensibility and Indoor Environment (Kwok Wai Tham)
  2. 2.The importance of obtaining contextual information from the occupants in sensor-based studies of IAQ in lodgings (Benjamin Hanoune)
  3. 3.The value and utility of multi-modal IEQ sensing in an indoor environment (Sekhar Narayana Kondepudi)
  4. 4.Autonomous personal comfort systems via infrared-fused vision-driven robotic systems (Ali Ghahramani)
  5. 5.Cohort matching and 'cold start' thermal comfort prediction (Matias Alberto Quintana Rosales)
IEQ guidelines worldwide - different stakeholders’ perspectives
Organizer: Ulla Haverinen-Shaughnessy (ISIAQ, USA / Finland)

The database is growing and it currently includes at least partial information from 16 countries. A group of active members participating in developing the database has involved 5-10 individuals, with a larger group of 30-50 individuals showing interest in contributing further development. We have presented the database in Indoor Air 2018 and held a symposium in ISES-ISIAQ 2019 joint conference, where the focus was on differences between countries in terms of existing guidelines. In Indoor Air 2020 we propose to organize a workshop, where the focus is on discussing about different stakeholders perspectives with respect to guidelines. The stakeholders include policymakers, scientists, practitioners (e.g. consultants, manufacturers, entrepreneurs, building operation staff), and end user (e.g. building owners, occupants). The session will consist of two presentations and a panel discussion. The panelist (to be invited) will be representing different stakeholders.

  1. 1.Introduction to the database (Ulla Haverinen-Shaughnessy)
  2. 2.Scientific overview of issues pertaining to IEQ guidelines (Lars Gunnarsen)
Human-Building Integration as an Innovative Principle to Control Indoor Environmental Quality
Organizer: Joon-Ho Choi (University of Southern California, Los Angeles, California, USA)

Due to advances in today’s sensing and mobile technologies, more and more data can be easily and effectively collected by various means. It is now feasible to collect and process a large amount of real data about the environmental satisfaction levels of a building’s occupants. A human body naturally reacts to ambient environmental conditions to minimize any environmental stress based on its autonomic nervous system (Streeten 2014). Therefore, the goal of this proposed workshop is to enhance the interdisciplinary knowledge to advance building indoor environmental controls as a function of human bio-signals (i.e., physiological signals). To identify intellectual challenges and research gaps, the following research components will be discussed with the four invited experts, internationally well-known in the IEQ/Human-Building-Interaction domains:
1) Human factors/bio-signal-types that can be integrated with building IEQ control and system/architectural design processes.
2) Relationship between human physiological signals and IEQ components, such as thermal, lighting, air, acoustic, and spatial quality conditions.
3) Exploitation of advanced hardware and software technologies that are capable of integrating building indoor environmental quality control and design with human factors as a sustainable environmental control strategy.

  1. 1.Use of artificial intelligence to predict building occupancy (Jørn Toftum)
  2. 2.Real time non-invasive (non-contact) measurements of human thermal physiology signals and thermal comfort/discomfort poses -A short review (Bin Yang)
  3. 3.Predicting personal thermal comfort using wearable sensors (Shichao Liu)
  4. 4.Relationship between human physiological responses and cognitive performance in indoor thermal environment (Dongwoo Yeom)
  5. 5.Human-Building Integration as Novel Building Control Strategies to Enhance Environmental and Pshyological Benefits (Joon-Ho Choi)
Global studies on indoor environment and health, a journal from dampness to chemicals
Organizer: Yuexia Sun (Tianjin University, China)

Asthma and allergies have increased dramatically all over the world, and especially among children. However, there has been little scientific focus on the exposure of small children (and possibly fetuses), indoors, especially in homes. Since the first study was conducted in Sweden 2000 (DBH), the same study has then been repeated in Bulgaria, Singapore, Taiwan, Denmark, USA, South Korea and China. The questionnaire is about children’s health (asthma, allergies, airways infections), the families’ health, and the home environment. In the second step case-control studies with measurements and inspections have so far been carried out in Sweden, Bulgaria, Singapore, Taiwan, Denmark and China. The baseline questionnaire is then followed up for a longitudinal design, so far conducted in Sweden (SELMA) and China, with extended aims of investigating risks of indoor chemicals (EDCs such as phthalate, bisphonals, PFAs, flame retardants, etc.) on children’s health (e.g., neuro and sexual development).
This workshop will give a world view of indoor environment (housing) and health among children. The main findings from separate studies will be summarized and updated. Similar and different risk factors in the indoor environment affecting children’s health will be identified.
This workshop is a contribution from ISIAQ STC31 “Health Effects and Epidemiology”.

  1. 1.Risk assessment of indoor environment on health, a journal from damp building (DBH) to modern chemical exposure (SELMA) in Sweden (Carl-Gustaf Bornehag)
  2. 2.Modern home makes children allergic, Phase II study on children’s health and home environment in China (Yuexia Sun / Chanjuan Sun / Lifang Wang)
  3. 3.Targeted and non-targeted analysis of chemical exposures indoors using silicone wristbands in the Global CogFx Study (Joseph Gardner Allen)
  4. 4.Hormone-disrupting bioactivities, PFAS, and flame retardants in indoor dust (Anna Young)
Estimating and Comparing the Burden of Disease of Indoor Air Pollution worldwide
Organizers: Yinping ZHANG (Tsinghua University, China)
Organizers: Corinne MANDIN (Scientific and Technical Center for Building, France)

Background: Indoor air pollution has been neglected compared to ambient outdoor pollution while people spend over 80% of their time indoors. One reason may be that insufficient burden of disease data have been generated for indoor air pollution internationally and have reached the political and social spheres.
Scientific Purpose: Global estimates of burden of disease from indoor air pollution are now necessary, and to this purpose, harmonized methods must be set. To address this problem co-operatively, researchers are invited to constitute a panel.
Content of the session: Following the presentations of some evaluations of the burden of disease of indoor air pollution in China, Europe and the USA, the participants will be invited to discuss about the harmonized methods to be used, the existing data, the way to tackle the limitations, and the ways to convince policy makers.
This workshop will be the official start of a new Scientific and Technical Committee (STC) of ISIAQ targeted to the burden of disease of indoor air pollution.

Introduction to IEA EBC Annex 80 Resilient Cooling
Organizer: Hui Zhang (UC Berkeley, USA)

The world is facing a rapid increase of air conditioning of buildings. Climate change is one of the factors driving this trend. The Annex 80’s main objective is to support a rapid transition to an environment where resilient low energy and low carbon cooling systems are the mainstream and preferred solutions for cooling and overheating issues in buildings.
In this workshop, we will discuss feasibility of low energy and low carbon cooling resilient cooling solutions.

  1. 1.TBD (Nari Yoon)
  2. 2.TBD (Chunyoon Chun)
Concept and application of PCS (Personal Comfort System) for built environment
Organizer: Bin Cao (Tsinghua University, China)

The concept of traditional heating/cooling systems is to control the thermal conditions of indoor space, i.e. space heating/cooling. Thus, the largest part of heating or cooling provided by a system is dissipated in the indoor “space”, but not received by occupants’ “body”, which leads to waste of energy. A new type of system- PCS (Personal Comfort System) could be a supplement to overcome this issue. PCS aims to provide an occupant thermal control methods at a small domain around the occupant’s body, so that to satisfy his/her individual heating/cooling demand. Using PCS can also lead to a wider acceptable range of indoor temperature, so it is possible to lower energy usage for space heating/cooling.
Contents of the workshop:
1) To introduce a PCS design guideline developed by IEA-EBC Annex69 team
2) To share working experience on PCS from several international researchers
3) To discuss the potential of PCS usage in the future

  1. 1.Potential of personal comfort models to improve occupant satisfaction (Jørn Toftum)
  2. 2.Is It Possible to “Design” Personal Comfort Environment?: Comprehensive Post-Occupancy Evaluation as a Potential Application for Individuals’ Environmental Controls (Joon-ho Choi)
  3. 3.Personal thermal comfort models with wearable sensors (Shichao Liu)
  4. 4.The tradeoff between overall and local thermal perceptions when using local cooling/heating (Bin Cao)
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