Which condition would most likely increase turbidity?

Which condition would most likely increase turbidity?

• A. High dissolved oxygen
• B. Low pH
• C. Rainfall runoff after a storm
• D. High water temperature

Answer: (C)

Turbidity is a measure of how cloudy water is due to suspended particles like soil, silt, and organic matter. Rainfall runoff after a storm directly increases turbidity because the rain washes soil and debris from the land into streams and reservoirs, dramatically raising the amount of suspended solids in the water. The other factors don’t add particles in the water itself: high dissolved oxygen relates to gas content, not cloudiness; low pH is about acidity, not suspended solids; and while high water temperature can influence algal growth (which can affect turbidity indirectly), the immediate and largest impact on turbidity comes from storm runoff carrying sediments.

Turbidity is a measure of how cloudy water is due to suspended particles like soil, silt, and organic matter. Rainfall runoff after a storm directly increases turbidity because the rain washes soil and debris from the land into streams and reservoirs, dramatically raising the amount of suspended solids in the water. The other factors don’t add particles in the water itself: high dissolved oxygen relates to gas content, not cloudiness; low pH is about acidity, not suspended solids; and while high water temperature can influence algal growth (which can affect turbidity indirectly), the immediate and largest impact on turbidity comes from storm runoff carrying sediments.