In their work, experts have focused on the emissions of airborne nanoparticles that are 1-3 nanometers in diameter. These tiny particles are so small that it is impossible to see them, they are not like dust, which can be seen floating in the air.
Particles so small, known as nanocluster aerosols, are particularly alarming because they are the right size to enter the human respiratory system and spread to organs. This is why it is so important to study them in order to understand the risk of air pollution.
In order to determine exactly how many particles are emitted when gas stoves are used, the scientists used high-end instrumentation in a recreated small house in a laboratory setting, equipped with multiple sensors to monitor air quality.