Sunday, February 3, 2013
THE GREAT PACIFIC GARBAGE PATCH
My presentation was based on the Great Pacific Garbage Patch. It was discovered by racing boat captain known as Charles Moore, who was sailing from Hawaii to California.When crossing the subtropical gyre he noticed millions of pieces of plastics surrounding his ship. These plaastics have great danger on aquatic species. The plastics block sunlight from reaching on plankton and algae which produces food for fishes,and other living organisms in the sea or ocean.These plastics have become a disaster to most marine species. They are often found dead with bottle caps, plastics and other stuff in their stomach. I also spoke about the Gyre. The ocean currents collect floating garbage for thousabds of miles and drop it into the North Pacific Subtropical Gyre. The trash is eventually packed into convergence zone that links two eastern and western garbage patches, which form the Great Pacific Garbage Patch.
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ReplyDeleteThe Clean Air Act
ReplyDeleteThe Clean Air Act was designed by the congress in 1970 to protect public health and welfare. The act had two major revisions in 1977 and 1990. Many of the revisions were due to the discovery of new pollutions in regions. To enforce the act the state and EPA(Environmental protection Agency) has a joint partnership. The duty of the state is to implement plans concerning nonattainment area, areas where the atmosphere are contaminated by pollutants. The state implements its plans based on EPA's air quality standards for common and widespread pollutants. These common air pollutants are called "criteria pollutants" found all over the United States. These Criteria Pollutants are: Particulate pollutant, ground-level ozone, sulfur dioxide, nitrogen oxide, carbon monoxide, and Lead.
The duty of EPA is to make sure that states are doing what they are suppose to concerning reducing contamination in the atmosphere. EPA assist states by providing technical assistance, and by issuing national emission of sources. EPA also review state plans to ensure that they fulfill the purpose of the Act. If state fails, EPA must implement a substitute plan for the state. A state's plan for a nonattainment area are usually due in three years and have five years to fulfill the purpose of the plan. Additional time is given up to ten years if EPA determines additional time is needed due to the area’s severity of pollution.