Ultrafine Particles

Ultrafine particles are tiny particles that measure less than 100 nanometers in diameter, billions of times smaller than a grain of sand. They can be found in the air from sources like vehicle emissions, industrial processes, and household products. Due to their small size, they can easily enter the human body through the lungs and may pose health risks, including respiratory and cardiovascular issues. Understanding ultrafine particles is important for assessing air quality and protecting public health, as they can contribute significantly to pollution and its adverse effects on both people and the environment.