Optimizing Nonpoint Source Pollution Reduction Costsby John G. Garland, III,
Frank S. Tirsch,
Abstract: This study demonstrates diminishing marginal returns for spending to reduce nonpoint source pollution in Hampton, Virginia. A linear optimization program selected the best combination of management practices to minimize the cost of removing five nonpoint source pollutants - total nitrogen, total phosphorus, suspended solids, fecal coliforms and five-day biochemical oxygen demand. Management practice options were grass swale roadways, porous pavers, detention basins, ponds and fertilizer management. A sensitivity analysis was conducted for total phosphorus to determine how sensitive overall nonpoint source pollution control costs were to key mangement practice data used in linear optimization problem.
Subject Headings: Nonpoint pollution | Water pollution | Highway and road management | Sensitivity analysis | Phosphorus | Oxygen demand | North America | Virginia | United States
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