WP2 | Overheating and Air Pollution Indicator and Model

Acting as an “OCCuPANt” project partner, this work package is entitled: “Impacts of Climate Change on The Indoor Air of Buildings in Belgium” consists making an indicator of the IAQ/CC and building evolution for determination of the monitoring parameters in the context of CC.

A) Better understanding of the climate change effects on the IAQ

  • Collecting existing data due to the little statistics available of the population percentage living in homes in which reliable cooling and ventilation are not provided.
  • Determining whether indoor air pollutants can be reliably assessed in different dwellings, in function of temperature and solar Irradiance.
B) Building an indicator of the IAQ linked to the CC and building evolution, which implies the determination of the explanatory variables (T, RH, O3, VOCs, NOx, CO, PMs)
  • Investigation of relationships between different variables.
  • Validation accuracy of the indicator and classification of the IAQ.
C) Study the possible “building” solutions to reduce the impacts of CC on IAQ.

Research Questions

  1. What are the primary sources of IAQ emissions of the residential buildings?
  2. What is the correlation of CC effects and IAQ (What are the most influential factors of CC on the IAQ?
  3. What are the links between heatwaves/outdoor air pollution and IAQ?
  4. How to adapt selected existing IAQ evaluation approaches to provide a useful tool in the context of CC?


The state of the art is realized and latest progress in IAQ over CC is addressed. The weather data, outdoor air pollution and IAQ of selected test houses are being recorded (by fabricated measurement devices (low-cost sensors) and reference meteorological stations). Also, a detailed questionnaire is developed to analyze the building parameters and occupant’s behavior impacts on the IAQ.  In parallel, a decision support tool is being designed based on aggregation and weighting procedure to address the IAQ in the context of CC. The purpose of measurement campaign is to examine the feasibility of the tool and identify the need for any immediate modifications.

Expected Outcomes

Experiments on indoor measurements will constitute a base of knowledge for other projects studying indoor environment with low-cost sensors.

IAQ model for better understanding of ventilation types and their impacts in the extreme heat events and indoor pollutant concentration.
This PhD thesis is contributing to a certain of an IAQ with climate change indicator for better understanding of occupants.

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