9.7. A small lake with a volume equal to 500,000 m³ is approximately completely mixed. The lake is used as a fishing pond by local residents, but pesticide-containing runoff from local farms may cause damage to the fish population. Natural flow through the system is 1000 m³/d and agricultural runoff is 200 m³/d for 200 d. Pesticide concentration in the runoff is 0.1 g/m³. When will the concentration increase to the 0.02 g/m³ level known to be toxic to the fish?

9.7. A small lake with a volume equal to 500,000 m³ is approximately completely mixed. The lake is used as a fishing pond by local residents, but pesticide-containing runoff from local farms may cause damage to the fish population. Natural flow through the system is 1000 m³/d and agricultural runoff is 200 m³/d for 200 d. Pesticide concentration in the runoff is 0.1 g/m³. When will the concentration increase to the 0.02 g/m³ level known to be toxic to the fish?

Aquaculture Science

3rd Edition

ISBN:9781133558347

Author:Parker

Publisher:Parker

Chapter17: Aquaculture Business

Section: Chapter Questions

Problem 3KA

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