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What is the hypothesis of pollution
Scientists have long understood that air pollution is a serious health threat. The World Health Organization reported that in 2012, 1 in 8 deaths worldwide stemmed from air pollution.
Throughout the 1960s, well-publicized news stories were adding momentum to the call for comprehensive federal environmental legislation. The nation’s air quality had deteriorated rapidly, and in 1963 high concentrations of air pollutants in New York City caused approximately three hundred deaths and thousands of injuries. At the same time, cities like Los Angeles, Chattanooga, and Pittsburgh had become infamous for their dense smog. Polluted urban areas, once considered unpleasant and unattractive inconveniences that accompanied growth and job creation, were by the 1960s definitively connected by empirical studies to a host of respiratory problems.
Get you a hypothesis about air pollution
Urban air quality was not the only concern. Questions were also being raised about the safety of drinking water and food supplies that were dependent on freshwater resources. In 1964, over a million dead fish washed up on the banks of the Mississippi River, threatening the water supplies of nearby towns. The source of the fish kill was traced to pesticide leaks, specifically endrin, which was manufactured by Velsicol. Several other instances of polluted waterways added to the public’s awareness of the deterioration of the nation’s rivers, streams, and lakes and put pressure on legislators to take action. In the mid-1960s, foam from nonbiodegradable cleansers and laundry detergents began to appear in rivers and creeks. By the late 1960s, Lake Erie was so heavily polluted that millions of fish died and many of the beaches along the lake had to be closed. On June 22, 1969, the seemingly impossible occurred in Ohio when the Cuyahoga River, which empties into Lake Erie, caught fire, capturing the nation’s attention. However, it was not the first time; the river had burst into flame multiple times since 1968.
The purpose of this project is to do a survey research project to find out what students know and feel about air pollution. Our hypothesis states that the majority of the responses to the factual questions about air pollution on the questionnaire will be answered correctly.
Can air pollution cause appendicitis
Adding to air and drinking water concerns was the growing problem of coastal pollution from human activity. Pollution from offshore oil drilling gained national attention in 1969 when a Union Oil Company offshore platform near Santa Barbara, California, punctured an uncharted fissure, releasing an estimated 3.25 million gallons of thick crude oil into the ocean. Although neither the first nor the worst oil spill on record, the accident coated the entire coastline of the city of Santa Barbara with oil, along with most of the coasts of Ventura and Santa Barbara counties. The incident received national media attention given the beautiful coastal location of the spill. In response to the spill, a local environmental group calling itself Get Oil Out (GOO) collected 110,000 signatures on a petition to the government to stop further offshore drilling. President Nixon, a resident of California, complied and imposed a temporary moratorium on California offshore development.
President Obama argued that air pollution and carbon dioxide often come from the same sources, so cutting carbon yields health benefits in the near term.
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