verdonkering

Verdonkering is a Dutch term that literally translates to "darkening." In common usage, it refers to the gradual decrease in the amount of light reaching the Earth's surface, particularly in urban or industrialized areas, due to pollution. This phenomenon can be caused by various airborne particles, such as soot, dust, and chemical compounds, which scatter and absorb sunlight.

Historically, verdonkering was a significant issue in many industrialized cities during the 20th century, leading to reduced visibility and impacting the quality of life. The effects of verdonkering include a decrease in solar radiation, which can affect plant growth and, in some cases, human health. It can also contribute to a general decline in ambient light levels, making environments appear perpetually dim.

While significant efforts in pollution control have reduced the severity of verdonkering in many parts of the world, it can still be a concern in areas with high industrial activity or specific weather conditions that trap pollutants. Understanding verdonkering is part of the broader study of air quality and its environmental impacts.