Several Genera and Species of fish found in lakes, ponds and streams that are part of the food chain are tested for their reaction to chemical exposure. Chemicals that kill fish are considered dangerous to aquatic eco-systems due to the possible food chain effects and food source depletion. Fish Toxicity is a measure of a substance’s toxicity when consumed by these various types of fish. A common measuring tool is LC50 (“lethal concentration”), which is the concentration of a substance in the water required to kill fifty (50) percent of the fish test population. If LC50 < 10 mg/L, the substance is considered fish toxic.
Source: MBDC
Category: Green