Assignment #3.1 “Determining Causes and Effects-Draft Version” “Determining the Causes and Effects of Water Pollution in Lake Huron” By: Maricel N. Johnson November 28, 2012 Eng 115 (Tuesday Class) Professor: Michael Hunter Lake Huron is the third largest of the lakes with 3,540 feet of water, with it’s average depth is 195 feet and with maximum depth of 750 feet. The Great Lakes, Lake Michigan, Erie, Ontario, Superior and Huron are our largest freshwater system. Lake Huron contains many wildlife and is in danger of being polluted. This pollution is harmful to fish, wildlife animals, and to humans of the region. Determining the cause and effects of water pollution in Lake Huron contributes to finding solutions for cleaning up our waterways and improving public health.
In fish, neurological functions, intermediary metabolism, antioxidant activity, epithelial transport, and other physiological and biochemical systems are damaged by cadmium [2].All of these harmful bioinorganic effects are largely due to occupational or environmental exposure to in-excess levels of cadmium through inhalation or ingestion of fine air particulates and consumption of cadmium-exposed plants, animals, or water. Cadmium is harmfully introduced into the environment as carcinogens through processes of fossil fuel combustion and waste incineration, and as in-excess terrestrial deposition through metal mining processes, phosphate fertilizer and pesticides containing cadmium usage in agriculture, and improper chemical waste (such as old batteries) and sewage sludge disposal. Even seemingly small introductions of cadmium to the environment can cause contamination at a large scale, particularly when a contamination process is repetitive [2]. Pollution from surface runoffs and subsurface flow can leach into river systems and ground water, affecting surrounding ecology, crops and livestock. Drinking any affected
Dead fishes could be seen floating on water. Millions of fishes were killed while many varieties such as eels, salmons were even wiped out. This polluted water soon reached the North Sea showing its effect there. The Dutch were mainly worried due to the mercury present in water mixed with other chemicals. A similar incident took place in Japan.
Effects of acid rain on leafs Abstract: Because of the over pollution in the world many environment around the world have been damaged and destroyed by acid rain. Acid rain is the precipitation that has high levels of acid forming chemicals, coming from multiple chemicals being released in the atmosphere that combines with the water vapor in the atmosphere. The importance of this lab is to show the effect of acid rain has on a plant showing how it damages the plant over a period of 20 days. This experiment is meant to show how damaging acid rain is to the environment and why we should be concerned about this issue. Introduction: The reasons for this study it to show the effect of acid rain on plants more specifically sunflower, radish, and clovers.
But an injury can inflame the cornea without a secondary infection occurring. Viral keratitis occurs quite commonly and the types of viruses include: Adenovirus, which is one of the causes of upper respiratory infections. Herpes simplex type 1, and Varicella zoster. Bacterial keratitis occurs less often than viral keratitis. Infectious keratitis usually begins by affecting the outer layer of the cornea, but it can go deeper into the cornea, increasing the risk of impaired vision.
GLOBLE PHOSPHORUS CYCLE: That benign-looking pond scum signifies a far-reaching shift in the global phosphorus cycle. Think of global environmental change, and you'll probably think most immediately of such sweeping atmospheric phenomena as global warming or ozone depletion. Many of the other environmental disruptions we're familiar with-toxic dumps, decimated forests, eroded fields-seem largely confined to particular localities. Yet there are some environmental changes that, while appearing to be locally confined, are in fact manifestations of worrisome global patterns. Look at the algae forming on a local farm pond, for example, and you're seeing the result of a process-the phosphorus cycle-that extends far beyond that farm.
This meant that any fish that would try to swim down to the bottom of the lake would die due to lack of oxygen. This then cut down a high level of cichild which ate at the bottom of the lake. Some other factors that affected Lake Victoria are the pollutants that are caused by humans such as sewage that were untreated, waste than ran into the lake, and the effects of agriculture. The total of all these activities by humans combined have crushed Lake Victoria’s sensitive ecosystem. Another major provider to the ecological balance of Lake Victoria’s was the initiation of the Nile perch.
HOW HUMANS IMPACT CARBON,PHOSPHOROUS,NITROGEN CYCLE The nitrogen cycle is impacted by humans whenever fertilizers are applied to farmlands to help crops grow. This adds nitrate to the soil. If the soil erodes the nitrates are transported and deposited to the nearest body of water. This can cause algae to overgrow in a process called eutrophication. The lake will run out of oxygen as the algae dies off the decomposition.
Freshwater ecosystems are of particular concern with water being a vital resource for the survival of organisms. Human interference has played a major role in the introduction and distribution of pathogens into this environment, with the greatest source of biological pollution discharged into waterways being sewage effluent (Mason, 2002). Contamination via faecal matter will introduce a variety of microorganisms to a waterway that is harmful to human and animal health including viruses, parasitic worms, protozoa and bacteria. Moreover, human movement of disease carrying organisms has shown to alter natural disease dynamics within an ecosystem (Okamura & Feist, 2011) impacting on biodiversity, population size and potentially causing economics losses. As a result, large scale management strategies are necessary to monitor and maintain water quality standards so that we may continue to use this resource as an essential component of life.
This report will contain global issues, including the worryingly named “Great Pacific Garbage Patch”, oil spills and local problems, such as the previous near destruction of the Port Noarlunga reef, which, prior to the establishment of the South Australia’s first aquatic reserve, had been overfished and polluted. Although the ocean covers approximately two thirds of the Earth’s surface, it is surprisingly susceptible to human influences. The effects of rubbish dumping and chemical run-off have tainted our oceans and they have taken their toll on the vast marine environments and the populations in which they contain. Circulating the Pacific Ocean is a gyre of marine debris (Non-biodegradable human waste that has collected in marine environments), worryingly named “The Great Pacific Garbage Patch”. Such an entity had been theorised and predicted by oceanographers and climatologists, however, it was discovered by yacht captain, Charles Moore.