Meripöly

Meripöly is a Finnish term that translates to "sea dust" or "sea salt spray." It refers to the fine particles of salt and other substances released into the atmosphere from the surface of the sea, particularly through the action of wind and wave breaking. These particles are carried inland by the wind and can deposit on surfaces, impacting vegetation, buildings, and infrastructure.

The composition of meripöly varies depending on factors such as water salinity, the presence of organic matter, and atmospheric conditions. It typically includes sodium chloride, but can also contain magnesium, sulfate, and trace elements. In coastal areas, especially during storms or high winds, the concentration of meripöly can be significantly higher, leading to noticeable effects.

The impact of meripöly is most pronounced in coastal environments. It can cause corrosion on metal surfaces, damage to paintwork, and affect the growth and health of plants by increasing their salt content. For example, roadside vegetation in coastal regions may show signs of salt damage from meripöly. In some regions, the deposition of meripöly can also contribute to the salinity of freshwater bodies near the coast. Understanding meripöly is important for coastal management, infrastructure maintenance, and ecological studies in affected areas.