luftpartiklene

Luftpartiklene, often referred to as particulate matter or PM, are tiny solid or liquid droplets suspended in the Earth's atmosphere. They are a complex mixture of various substances, including sulfates, nitrates, ammonia, sodium chloride, black carbon, mineral dust, and water. These particles can originate from both natural sources and human activities. Natural sources include dust storms, volcanic eruptions, sea spray, and pollen. Anthropogenic sources are more diverse and significant in many populated areas, encompassing emissions from the combustion of fossil fuels in vehicles, power plants, and industrial processes, as well as from residential heating and agricultural practices.

The size of air particles is a crucial characteristic, often categorized into fine particles (PM2.5, with a diameter of 2.5 micrometers or less) and coarse particles (PM10, with a diameter between 2.5 and 10 micrometers). Due to their small size, PM2.5 particles are particularly concerning as they can penetrate deep into the lungs and even enter the bloodstream, posing significant health risks. Exposure to air particles is linked to a range of respiratory and cardiovascular diseases, including asthma, bronchitis, heart attacks, and strokes. They also contribute to reduced visibility and can damage ecosystems and materials.