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Public comments are invited regarding actions to prevent nutrients from flowing into the Mississippi River.
The Gulf Hypoxia Task Force, chaired by EPA, released its 2008 revised Gulf Hypoxia Action Plan that identifies efforts to track progress, update the science and adapt actions to reduce nutrients flowing from 31 states into the Mississippi River. Those excess nutrients impair waterways throughout the states and result in an annual "dead zone" in the Gulf of Mexico.
The revised plan, which is open for public comment until Jan. 4, 2008, includes several improvements over the current action plan, first published in 2001. It increases accountability and specificity for state and federal partners; shifts the lead for nutrient reduction strategies from Mississippi River sub-basin teams to the states; charges federal agencies to prepare complementary federal nutrient reduction strategies for appropriate federal programs and projects; and enhances mechanisms for tracking and reporting.
Federal agencies and states within the entire Mississippi/Atchafalaya River Basin have been working together to reduce the size of the dead zone through a collaborative approach while protecting and restoring human and natural resources of the basin. The solutions must balance environmental, cultural, and economic demands to protect coastal fisheries and resources and water quality in the basin.
Hypoxia occurs when excess nutrients, primarily nitrogen and phosphorous, trigger excessive algae growth that results in reduced sunlight, loss of aquatic habitat and a decrease in oxygen in the water. Excess nutrients can come from agricultural fertilizers, factory and wastewater treatment plant discharges, runoff from developed land, atmospheric deposition and soil erosion. Shrimp and other benthic communities are unable to escape hypoxic bottom waters, but the full extent of the impact of hypoxia on this nationally significant ecosystem has only begun to be understood.
The size of the dead zone is approximately 12,738 sq miles. The goal is to reduce or make significant progress toward reducing the five-year running average to less than 3,107 sq miles by 2015. The hypoxic zone in the Gulf of Mexico is the second largest hypoxic zone in the world.
The task force, which is officially known as the Mississippi River/Gulf of Mexico Watershed Nutrient Task Force, leads efforts to promote and support nutrient management and hypoxia-related activities throughout the vast Mississippi River and Gulf of Mexico watershed, and encourages public participation in the process.
The revised action plan is available at www.epa.gov/msbasin