Støvpartikler

Støvpartikler, often referred to as particulate matter (PM), are microscopic particles suspended in the air. These particles can originate from various sources, both natural and anthropogenic. Natural sources include dust storms, volcanic eruptions, sea spray, and pollen. Human activities that contribute to dust particle formation include combustion processes from vehicles and industrial facilities, construction and demolition work, agricultural activities like plowing, and the burning of biomass.

The size of dust particles is a critical factor in their impact on health and the environment. They are typically classified by their aerodynamic diameter. Coarse particles (larger than 10 micrometers) generally settle out of the atmosphere relatively quickly. However, finer particles, such as PM2.5 (particles with a diameter of 2.5 micrometers or less) and ultrafine particles (even smaller), can remain suspended in the air for extended periods.

These smaller particles are of particular concern because they can penetrate deep into the respiratory system, reaching the lungs and even entering the bloodstream. Exposure to high concentrations of dust particles can lead to a range of health problems, including respiratory and cardiovascular diseases, asthma exacerbations, and reduced lung function. Environmental impacts include reduced visibility, deposition on surfaces, and potential damage to ecosystems. Monitoring and controlling dust particle emissions are important aspects of air quality management.