Soil and silt from land erosion are categorized as which pollutant type?

Soil and silt from land erosion are categorized as which pollutant type?

• A. Sediments
• B. Heavy Metals
• C. Nitrates and Phosphates
• D. Health Effects of Heavy Metals

Answer: (A)

Sediments are soil and silt that enter water bodies from erosion. When land is disturbed, soil particles are detached and can be carried by runoff into streams and rivers, making the solid material a pollutant type known as sediment pollution. These particles degrade water quality by increasing turbidity, reducing light penetration, and smothering aquatic habitats; they can also transport attached contaminants downstream. This is different from dissolved pollutants like heavy metals or nutrients such as nitrates and phosphates, which act in other ways. So soil and silt from erosion are categorized as sediments.

Sediments are soil and silt that enter water bodies from erosion. When land is disturbed, soil particles are detached and can be carried by runoff into streams and rivers, making the solid material a pollutant type known as sediment pollution. These particles degrade water quality by increasing turbidity, reducing light penetration, and smothering aquatic habitats; they can also transport attached contaminants downstream. This is different from dissolved pollutants like heavy metals or nutrients such as nitrates and phosphates, which act in other ways. So soil and silt from erosion are categorized as sediments.