Abstract
We live indoors. In the developed countries, people spent80-90% of time in buildings. Therefore, among the environmentalfactors, indoor air quality (IAQ) is a significant,if not the most significant, factor affecting human health.Scientific evidence has indicated that indoor air can bemore seriously polluted than the outdoor air in even thelargest and most industrialized cities. Indoor air pollutioncauses long- and short-term health problems and, dependingon the severity, can even make staying indoorsvery uncomfortable. Management of IAQ is a complicatedtask due to complexity of pollution sources and alimited number of measures applicable such as reducingcontaminants at the source, improving ventilation, and,when relevant, purifying the indoor air
Highlights
The majority of buildings are limited to natural ventilation via windows or passive ventilation channels
A good example to reduce pollutant emission at a source is a concept of the lowest concentration of interest (LCI) for building materials which are one of the most significant sources of volatile organic compounds (VOCs)
“EU-LCI are based on reported scientific data and expert judgment and represent concentration levels that are considered likely not to cause adverse effects over the longer term by use of the model room as a reference” (EC, 2020)
Summary
The majority of buildings are limited to natural ventilation via windows or passive ventilation channels. Among the environmental factors, indoor air quality (IAQ) is a significant, if not the most significant, factor affecting human health. Scientific evidence has indicated that indoor air can be more seriously polluted than the outdoor air in even the largest and most industrialized cities.
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