If you have ever lived in proximity to coastal areas you may have seen coastline erosion first hand. The beaches you frequent during the summer may seem to be getting smaller and smaller every year. Why does your favorite beach seem to be disappearing? Coastal erosion is to blame. The waves, wind, tides and currents all play a part in the mechanism that is coastal erosion. When water and wind batter the shoreline sediments are carried out to sea and deposited on the sea floor or at other points along the coastline. This is called an erosional coastline. This erosion may be very apparent or seem to have happened overnight when it happens due to a large storm or extremely high tide.
3. ASC 360-10-35-21 states, “[a] long-lived asset group shall be tested for recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. The following are examples of such events or changes in circumstances: a. A significant decrease in the market price of a long-lived asset group…”
Bitter Creek has argillic rocks overlaying propylitic rock, and many of the rocks contained a significant amount of pyrite and hematite; thus explaining the high concentrations of sulfate and iron. Alum Creek also contains argillic and propylitic rocks with hematite cement, biotite, and epidote. The iron-rich minerals and sulfur-rich minerals cause high concentrations in iron and sulfate. Alum Creek and Bitter Creek most likely did not have carbonate minerals to act as a buffer to the highly acidic minerals. Iron Creek, as inferred by its name, has a significant concentration of iron-rich minerals, such as hematite, pyrite, and biotite from propylitic rocks. Iron Creek also contains argillic rocks.
I’m reporting to the watershed area of the Conodoguinet Creek to discuss possible pollution in the creek. A type of pollution that can be a problem is Eutrophication. Eutrophication is the enrichment of an ecosystem with chemical nutrients. The Conodoguinet Creek runs through agricultural land, which means a lot of fertilizer. Phosphates and nitrates are found in fertilizers. When farmers use too much fertilizers, it can leak into the creek when it rains. When a lot of fertilizer gets into the creek in can get too many nutrients, and then excessive amounts of algae will grow causing many more problems. Acid rain is also another problem. Acid rain is caused by fossil fuels being burned, from cars, factories, etc. Acid rain can get into the
The water in urban wellfields is contaminated with saltwater since the water flow had changed direction. The water also contains high levels of nutrients (particularly phosphorous) because of runoff from the developed areas.
Let’s start out with the pollutants in this water. There was a surprising amount of pollution found downriver of Sioux Falls, the largest city in South Dakota. It makes sense that more pollutants would be coming from more heavily populated areas, but it doesn’t change the fact that it is harming all those around it. It is thought that a lot of this pollution is coming from the city waste
Although the amount of pollutants from a single town or construction site may seem insignificant, the combined concentrations of contaminants threaten our lakes, streams and wetlands. When things such as: human and animal waste, decaying plants and animals, discarded litter, or food waste enter surface waters, either dissolved or suspended in stormwater runoff, they can deplete the supply of dissolved oxygen in the water. When dissolved oxygen is reduced below a certain critical level, it can impair or kill aquatic plants and animals (CNYRPDB, 2011).
This year I went on a field trip to the Conodoguinet Creek. This creek runs into the Susquehanna River and drains 500 square miles of diverse landscapes. Conodoguinet comes from an indian word meaning “a long way with many bends.” It begins near Carlisle at North Middleton Park and comes to an end in West Fairview, when it flows into the Susquehanna River. The Conodoguinet Creek is about 90 miles of bends and loops that meander throughout Cumberland Valley. When I went on this trip, I tested how fast the water was moving downstream. I also tested the creek for the acidity and eutrophication. Eutrophication is excessive richness of nutrients in a lake or other body of water, frequently due to fertilizer runoff from the
The Water In The Valley. If the water is contaminated by the airborne pollutants, whether by depositing through direct water surface contact or by depositing on land and being carried to water bodies through run off, the residents will face problems. Once in the water, these pollutants can cause the fish to poison people upon consumption, or the fish could die out. Harmful algal blooms could occur; the water will become contaminated and unsafe to drink. This might seem like an exaggeration but in the San Joaquin Valley, the threat is very real. One might say that the people of the San Joaquin Valley may depend on water more than people elsewhere. The residents need water more because many of them depend on having enough water for their jobs, not just for their consumption. Being one of the top agricultural industries, the San Joaquin Valley residents need to have plenty of water for their industry of choice, whether is be for watering their crops or keeping the cows ' food (grass) alive, to ensure that they will be able to bring in profit to the valley and be able to feed themselves and their families.
The Conodoguinet Creek flows 101 miles through the Cumberland Valley of Pennsylvania. We traveled to just a small portion of the Conodoguinet Creek. In our area eutrophication and acid rain are common. Eutrophication is caused by sewage treatment plants, home sewage systems, and fertilizer runoff. Acid rain is caused by fossil fuel burning. If we were to test the Conodoguinet Creek for signs of acid rain, eutrophication or other types of pollution, then it would test with high levels of pollution. That way my hypothesis and what I thought about the pollution in the Conodoguinet Creek before I went there and tested the water.
The film The Sea Inside shares the heart warming real life story of a man named Ramon Sampedro. At the young age of twenty-six he suffered an accident while diving into shallow waters of the ocean that left him a quadriplegic. Now at the age of fifty-four, Ramon must depend on his family to survive. His older brother Jose, Jose’s wife, Manuela and their son Javi do their best to take care of Ramon and make him feel loved. Although Ramon is extremely grateful to his family and friends for their help all these years, he has come to see his life as aggravating and unsatisfying. He wishes to die with the little dignity he has left in his life. However, Ramon’s family is dead set against the thought of assisted suicide and the
The problem of AMD is serious at many sites and can happen after mine closure. Quantities and concentrations of AMD depend on site-specific characteristics. Chemical, biological, and physical factors are important for the rate of AMD generation. These factors can be characterized by dumps with high permeability and high oxygen ingress that contribute to higher ARD reaction rates. The dumps that increase sediment loads can cause loss of habitat in the surrounding area. Thus, this leads to higher temperatures and increased oxygen ingress through convection. These factors can also be characterized by low pH values (altered chemical equilibria) and elevated content of heavy metals (toxicity to aquatic organisms and human users) and dissolved salts (salinization problems for agriculture and sensitive users). For countries in more humid areas, high levels of precipitation can aggravate the problem of AMD . Also, bacteria that can accelerate AMD generation due to their ability to oxidize sulphur minerals and increase the rate of sulphur oxidation, which is an important factor in ARD formation . All of these discussed factors can accelerate the production of AMD to a level that can be problematic.
Everyday pesticides are dumped into our environment. Over time most of the pesticides make thier way to a source of water, whether it's groundwater or a body of water. According to Lewis Regenstein author of "America the Poisoned" two thirds of the nation's lakes have serious pollution problems. 80% of 3,700 urban lakes in the United States are destroyed. More than 94 million residents could use these lakes for recreational use or for a source of water (169). Cincinnati's drinking water contains about 700 chemicals. 90% of them did not exist 20 years ago. The main sources of most of these chemical pollutants are municipal sewage, industrial discharges, and runoffs from farming areas. There are also several other chemicals in America's drinking water. Although hazardous, there are approximately 60 chemicals that are mixed into water in the process of treating it. Unlike rivers or lakes, underground supplies are not processed at treatment plants before being used by humans. "More than one hundred million of our citizens depend in a whole or in part on underground as sources of drinking water (Beck qtd. in Regenstein 172). Once groundwater becomes contaminated, there is usually no way to clean it.
Interactions between groundwater and surface water are complex. Consequently, groundwater pollution, sometimes referred to as groundwater contamination, is not as easily classified as surface water pollution. By its very nature, groundwater aquifers are susceptible to contamination from sources that may not directly affect surface water bodies, and the distinction of point vs. non-point source may be irrelevant. A spill or ongoing releases of chemical or radionuclide contaminants into soil (located away from a surface water body) may not create point source or non-point source pollution, but can contaminate the aquifer below, defined as a toxin plume. The movement of the plume, a plume front, can be part of a Hydrological transport model or Groundwater model. Analysis of groundwater contamination may focus on the soil characteristics and site geology, hydrogeology, hydrology, and the nature of the contaminants.