airhaze

Airhaze is a term that describes a diffuse, hazy atmospheric condition that can obscure visibility, particularly at a distance. It is not a specific type of pollution but rather a general visual phenomenon caused by the scattering of light by small particles suspended in the air. These particles can include a variety of substances.

One common cause of airhaze is natural dust and soil particles lifted by wind. In arid or semi-arid regions, this can be a significant factor. Another contributor is moisture in the atmosphere, such as fog or mist, which can condense around airborne particles, enhancing their light-scattering properties. Smoke from wildfires or agricultural burning can also create widespread airhaze, adding fine particulate matter to the atmosphere.

In urban and industrial areas, airhaze can be exacerbated by pollutants from vehicle exhaust, factories, and power plants. These microscopic particles, including sulfates, nitrates, and organic compounds, can remain suspended for extended periods, leading to reduced visibility and contributing to poor air quality. The intensity and color of airhaze can vary depending on the composition of the suspended particles and the angle of sunlight. While airhaze can be a natural occurrence, human activities have increasingly contributed to its prevalence and severity in many parts of the world.