Researchers from the University of Birmingham in the United Kingdom measured particulate matter (PM) pollution in three households over a two-week period. They found that pollution levels indoors were higher and more variable than outdoors. One household exceeded World Health Organization limits for PM2.5 on nine out of fourteen days.
Activities such as cooking, smoking, and heating are the main sources of PM2.5 particles.
Pollutant particles enter through open windows, doors, and even cracks in the building façade. A ventilation outlet from a nearby restaurant kitchen had a significant impact on indoor pollution levels in one of the homes.
What measures can I take to reduce indoor air pollution?
– Regular vacuuming and cleaning of carpets
– Regular ventilation, but during periods when outdoor pollution is low
– Replacing a gas stove with an electric stove (not only does it produce fewer PM particles, but an electric stove – also produces 56% less nitrogen dioxide according to the latest research)
– Regular use of kitchen ventilation during cooking and after cooking
