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Notable dead zones in the United States include the northern Gulf of Mexico region, [5] surrounding the outfall of the Mississippi River, the coastal regions of the Pacific Northwest, and the Elizabeth River in Virginia Beach, all of which have been shown to be recurring events over the last several years.
The Mississippi River drains about 41% of the nation's water systems into the Gulf of Mexico. The river itself begins at Lake Itasca in Minnesota and runs through 10 states before it reaches the Gulf.
An example of this is the dead zone located off the coast of the Mississippi River. According to NOAA, the 2016 predicted size of this dead zone is going to be approximately 5,898 square miles with a nitrate concentration of 146,000 metric tons of nitrate flowing down the Mississippi and Atchafalaya River into the Gulf of Mexico. [5]
A 'dead zone' off the Gulf coast is larger than NOAA predicted. The massive area poses danger to marine life, and recovery could take decades. A 'dead zone' is growing in the Gulf of Mexico.
The likely starting cause is waste nutrients being carried into the estuaries by the Mississippi River, although the oil made it worse. The dead zone appeared to be created by low amounts of oxygen in the region, known as hypoxic zones, as a result of phosphorus and nitrogen blocking out sunlight. It grows the most during the summer, when the ...
Scientists prepare to collect near-bottom water aboard the R/V Pelican to verify oxygen measurements used to determine the size of the Gulf of Mexico hypoxic zone. (NOAA/LUMCON/LSU) A "dead zone ...
Lastly, the Quality of Life Goal is to improve communities across the Mississippi River Basin through land management and an incentive based approach. The Action Plan states that by December 2005, and every five years thereafter, the Task Force will review the reductions in nutrient load discharge and the response of the dead zone in the Gulf.
Tropical weather stirred up the Gulf of Mexico, reducing this year’s dead zone off Louisiana’s coast to the third-smallest ever measured, the scientist who has measured it since 1985 said Tuesday.