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The Cape Fear River.
Transcript of The Cape Fear River.
Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler and usually nutrient-rich depleted surface water.
Downwelling is the process of accumulation and sinking of higher density material beneath lower density material.
Water temperature is one of the most important characteristics of an aquatic system, affecting all the other indicators .
Dissolved oxygen levels. The solubility of oxygen decreases as water temperature increases.
The SDWA authorizes the United States Environmental Protection Agency (EPA) to create and enforce regulations to achieve the SDWA goals.
The clean water act was passed in 1972, and it established the goals of eliminating releases of high amounts of toxic substances in the water, taking out additional water pollution by 1985, and making sure that the top of the waters (surface waters) would meet standards necessary for human sports and recreation by 1983.
SDWA was passed by the Congress in 1974 to protect public health by regulating the nation's public drinking water supply.
The Cape Fear River.
Flocculation is a process where in colloids come out of suspension in the form of floc or flake.
Differs from precipitation in that, prior to flocculation, colloids are merely suspended in a liquid and not actually dissolved in a solution.
Adsorption is a process where a solid is used for removing a soluble substance from the water.
Active carbon comes in two variations: Powder Activated Carbon (PAC) and Granular Activated Carbon (GAC).
Aeration (also called aerification) is the process by which air is circulated through, mixed with or dissolved in a liquid or substance.
Cape Fear River Basin.
The Cape Fear river basin draws its name from the treacherous offshore shoals.
In October 1662, the English explorer, William Hilton, Jr made a three-week reconnaissance of the lower reaches of the Cape Fear River.
The major citys in Cape Fear are Charelstown and Wilmington.
Lumber River is the major river that connects to the Cape Fear.
The Cape Fear ends as 35-mile-long coastal estaury .
Cape Fear is found in Southeat U.S. stretching from lower North Carolina, through south Carolina and Georgia, and into North Florida.
The Cape Fear region is a mecca for the recreation and tourism sectors of our economy.
A 2005 study by the NC Wildlife Resources Commission found that “poor water quality” was cited as a great concern for the fisheries resources within the Cape Fear River Basin.
Water pH affects both biological and chemical processes. Values of pH below 4.5 and above 9.5 are usually lethal to aquatic organisms, and even less extreme pH values can affect reproduction and other biological processes.
Nitrates usually do not have a direct effect on aquatic insects or fish. But, excess levels of nitrates in water can create conditions that make it difficult for aquatic insects or fish to survive. An increase in nitrates may be followed by an increase in phosphates. When phosphates increase and the growth of aquatic plants is "encouraged" , algal plants bloom can occur. With the increase in algae growth and decomposition, the dissolved oxygen levels will decrease.
A measure of water clarity. High turbidity may occur when sediments are disturbed or other particles are suspended in the water.
A bioindicator is a living organism that gives us an idea of the health of an ecosystem.
An example of a bioindicator is lichens. Bio-indicators can be plants, animals or microorganisms.
If Toxins are in the water, some plants may not be able it grow in the area that is affected with it.
Nonpoint source pollution refers to both water and air pollution. A point source of pollution is a single identifiable source of air , water , thermal , noise or light pollution.