Effect Of Pesticides In The Ahs Watershed

     Heavy metals, such as copper, lead, mercury, and selenium are another group of toxins that pollute the water as well as the rest of the environment. The source of many of these pollutants are industries, automobile exhaust, mines, and even natural soil.

Please briefly describe the different types of water pollution mentioned throughout the "Poisoned Waters" video. Fertilizers, Nitrogen and Phosphorous caused algae which poisoned the waters. It caused a dead zone. The farmers who own chickens was allowing the manure to pollute the water. The humans race is all responsible as we pollute our water by throwing garbage into it. Soap, household cleaning agents, toothpaste, and other plastic, lubricant and fuels are all poisoning our water.

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).

Although sewage systems are able to provide a great deal of sanitation to water before it is released back into a source, the risk of raw sewage overflowing into water sources poses several issues. Not only can raw sewage contain harmful bacteria such as E. coli, it can also negatively affect aquatic life. Human waste typically contains high levels of nitrogen, phosphorous, and other nutrients that are useful for people but can cause many issues in an aquatic environment (Burkholder et. al., 2011). Much of these elements are removed during wastewater treatment, but if they are sent directly to a water source due to flooding, they can cause algae blooms and harm

Bioassays, Daphnia magna, were used to monitor water for the presence of toxic compounds in various water samples, including samples 1 mile upstream from the Fletcher’s Paint dump site and one mile downstream. A bioassay is a living organism that serves as a detector for toxins. It is hypothesized that if the Daphnia mortality rate when exposed to water samples from various locations is higher in greater solutions, then their deaths' indicate that the water contains toxic compounds due to the harmful toxins that originated from human pollution. This is the same hypothesis for the Fletcher’s Paint experiment.

There are several environmental concerns affecting the community of Lusby, Maryland, but of main concern is the cyanobacteria growing in the Chesapeake Bay. The blue-green algae called cyanobacteria is infesting the waterways in and around Lusby causing a hazard to the community. According to National Geographic (n.d.), the Chesapeake Bay was one of the first waterways recognized in the 1970s having overgrowth of cyanobacteria. Cyanobacteria contains both an algae and a bacteria and when growth exceeds space and the algae begins to die, two issues occur: toxins are produced and released which are harmful to both humans and animals and hypoxia follows as oxygen is consumed in excessive creating a dead zone in the water for all other living

The chemicals found in water can be dangerous toward our health. We live near the Great Lakes which supplies 20% of the World’s fresh water. It also has chemicals that threaten the life evolving around the fresh water. There are medical drugs that are being introduced to the fresh water lakes. Stuff like antibiotics and steroids. These pharmaceuticals are posing danger for the environment. This could affect the lake life,s growth.

There are several environmental concerns affecting the community of Lusby, Maryland, but of main concern is the cyanobacteria growing in the Chesapeake Bay. Chesapeake Bay and Patuxent River surrounded the peninsula town on Lusby and numerous lakes and creeks are embedded in the town as well, creating breeding ground for the blue-green algae, cyanobacteria and a hazard for the community. According to National Geographic, the Chesapeake Bay was one of the first waterways recognized in the 1970s that had overgrowth of cyanobacteria. Cyanobacteria contains both an algae and a bacteria and when growth exceeds space and the algae begins to die, two issues occur: toxins are produced and released which are harmful to both humans and animals and hypoxia follows as oxygen is consumed in excessive creating a dead zone in the water for all other living organisms in the bay (“U.S. Environmental Protection Agency, Health and Ecological Effects, Nutrient Pollution Policy and Data,” n.d.).

The quality of the U-High creek was identified as excellent. However, water quality is not excellent in all areas. There are many ways that water is polluted by humans, including pesticides and fertilizers from farming. Farmers use chemicals to help their crops grow better, but those chemicals are washed through the ground when precipitation comes, causing the levels of nitrate and phosphate to increase in the creek (Lenntech, 1998-2016). These chemicals allow for more algae to grow in the process of eutrophication (Lenntech, 1998-2016). When that algae dies, lots of dissolved oxygen is needed to form bacteria. Thus, there is less oxygen in the water for the organisms to breathe, causing them to die. Bioaccumulation can occur, where

This is a major issue, as some algae releases a deadly liver toxin into the water called microcystin, while consuming oxygen to fuel this process. We’ve found ourselves digging another grave for Lake Erie, so let’s try not to dig it any

Blue green algae, also known as cyanobacteria can be found in many lakes and ponds throughout Connecticut. It can go unseen or noticed in these bodies of water and not have an impact in others. However when the circumstances are just right the alga can bloom excessively and release toxins into the water. If and when this occurs people and animals using this body of water for recreation can be at risk. Because the toxins in the water cannot be seen, a chemical analysis of the water is needed to verify the release of the toxins. This issue began in my small community in 2012 when the weather was just right in temperature and the correct amounts of nutrients were

New Hampshire is known for having many farms spread out throughout the state, especially in Coos County. Because of this, many bugs come to survive off of the crops that grow here. If bugs keep eating the plants, then the quality of the crop will go down. It’s not just bugs that come to live off the plants, it is also animals like deer, bears, moose, and many more. All of these pests coming to steal and eat the plants can cause the land to lose moisture and lower the quality as well. This has affected the farming community greatly. It also affects stores and the people that shop there because the animals and bugs ruin a generous amount of crops. The less plants

Contaminated sediments are a significant problem in the Great Lakes basin. To reduced the discharge of toxic and persistent chemicals to the Great Lakes we must concentrations of contaminants in the bottom of rivers and harbors and have to raised considerable concern about potential risks to aquatic organisms, wildlife, and

In Lake Erie, there is out-of-control algae growth that created dead zones. The problem has become critical in the western Lake because of harmful chemicals. Contaminants in fish certainly are causing health problems. At present, the solution is to make

Water pollution affects plants and organisms living in these bodies of water; and, in almost all cases the effect is damaging not only to individual species and populations, but also to the natural biological communities.