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Global warming causes and effect
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Our drinking water is protected by the Environmental Protection Agency’s’ Safe Drinking Water Act (SDWA). Underneath the SDWA the Environmental Protection Agency (EPA) “sets standards for drinking water quality” and the “technical and financial programs” to ensure the safety (Environmental Protection Agency, 2017). One standard that the EPA regulates is the contaminants and their limits, that are authorized to be in our drinking water. To provide these standards underneath the contaminant regulation is to create cost analysis and health risk reductions (Environmental Protection Agency, 2016). A “contaminant” is “any physical, chemical, biological, or radiological substance or matter in water” (Environmental Protection Agency, 2017). …show more content…
During one of the first stages, coagulation and flocculation, positive charge chemicals are added to water that is gathered at a treatment plant, negative chemicals become neutralized (Centers for Disease Control and Prevention, 2015). Neutralization of these positive chemicals result in larger particles after they bind to the positive chemicals to form floc (Centers for Disease Control and Prevention, 2015). Sediment is formed from the floc weighted down to the bottom of the processing tank. With the sediment on the bottom, water that is on the top flows through a filter that can remove contaminants. Any contaminants that are left over after filtration is then killed by a disinfectant that is added to the water. Following the treatment process the drinking water is tested periodically by the city/county and results can be requested by the public. In most areas, for a fee, an individual can purchase a water testing lab test and submit it to a lab for an …show more content…
Once humans became industrialized there has been continuous contaminants released that can cause adverse effects to our health and our environment. Water contaminants are regulated by the Environmental Protection Agency and tested periodically. Water processing facilities shift, filter, and decontaminate physical, chemical, biological, and radiological contaminants from our drinking water. The atmospheric changes from the original greenhouse gases, changed once industries started. The excessive level of carbon dioxide, and three other gases in less levels, have increased the greenhouse effect creating global warming. Global warming has increased precipitation and droughts in areas, caused plants and animals to recede from their natural habitats, began melting glaciers causing a rise in surrounding waters, as well as killing wildlife such as coral from the changes in chemical makeup of their surroundings. As humans, we may not be able to undo the harm caused by our actions, but we can still attempt to cleanup are damage, repair what we can, and spread knowledge to others on the effects of us leaving our footprints on this
Regulations are created to protect the health and welfare of the public. The United States EPA develops the regulations at a federal level and each state’s EPA has the ability to make regulations pertaining to their state. The criteria for a state’s individual regulation are that it must be at least as strict as the federal regulation. The purpose of this paper is to examine the general requirements of the Lead and Copper Rule (with attention on the lead aspect) mandated to protect drinking water on the federal and state level.
There is no such thing as just changing something from one part and not having its effects distribute throughout the entire ecosystem. As an ecosystem continues changing and evolving, so will the organisms living around or in it. We must adapt to the environment or we will become extinct, unable to adapt into the rapidly changing environment we live in. Althout human impact on an environment may benefit us, it can also be harmful to nature. By taking care of what we do to the environment, we can prevent future negative changes in the environment and preserve earth’s natural state.
The Clean Water Act of 1972 (CWA) was originally the Federal Water Pollution Control Act of 1948. The original objective behind this act was to “to prepare comprehensive programs for eliminating or reducing the pollution of interstate waters and tributaries and improving the sanitary condition of surface and underground waters.” (U.S Fish and Wild Life Service, 2013). Throughout the duration of this paper the various amendments and their effects will be discussed, those involved both on the side of support and opposition and what influenced the amendments to be made and passed.
As swans drift with the current on a secluded lake in upper Canada they think not of the water they are in but of dreams of the past and wants for the future. On the other hand, seals off the coast of Northern California fear for their lives every day of humans exploiting their natural habitat. Many things can endanger water born animals, and most all of these come directly from humans. The pollutants of water come from many sources both close and far away from the water body itself. Wastes of humans are the major cause of pollution in the water, such materials include sewage, chemicals among other notable items. First, the composition water: water is odorless, tasteless and a transparent liquid. Though in large quantities water appears to have a bluish tint, it maintains the transparent tendency when observed in smaller quantities. Water covers approximately seventy percent of the Earth's surface in the solid and liquid form. Pollutants can be carried over a great distance by combining with evaporating moisture, forming clouds and then the wind taking the clouds to the larger body of water. This process is called acid rain and it is a major source of water pollution. Acid rain has been a problem since the Industrial Revolution, and has kept growing ever since. With acid rain moving over to a fresh water body, the plants and animals could experience pollution that they never had to deal with before and they could possibly die for the sudden change without them having time to adapt, if this is possible.
I chose to watch the Frontline episode on “Poisoned Waters”. This documentary showed the environmental issues involving case studies on the Chesapeake Bay and Puget Sound. By examining how these rising pollutants along with industrial contaminants like PCB, lead, mercury and agricultural pollution. America has kept from making many of the nation’s waterways fishable and swim able again. This was a goal set by Congress nearly four decades ago.
In 1974 Congress enacted the Safe Drinking Water Act. It set up government oversight, through the EPA, the Environmental Protection Agency, of surface and ground-water sources. “The EPA set up two types of regulations: (1) mandatory, enforceable maximum contaminant levels (MCLs), to be set as close to the recommended health-based goals and (2) non-mandatory, health-based maximum contaminant level goals (MCLGs).” The chemicals and contaminants to be regulated were: microbiological contaminants, metals and inorganic chemicals, volatile organic chemicals, organic compounds, and radionuclides.
Over the course of recent history, much concern has been raised over the industrial revolution and the potential climate changes that it might be causing. It has been stated by global warming theorist that C02 emissions caused by human technologies are causing the world to warm, which will cause negative climate changes. The Earth may be experiencing a global warming trend and climate change; however, the process of climate change is outside of human control because human activity can barely account for any of the C02 level increases. Attempts to reduce human C02 emissions is needlessly expensive, and will have a negligible role in preventing or slowing any climatic changes such as global warming or an impending ice age. People must be prepared to adapt to the climatic changes that occur, because it is unlikely that human intervention will postpone them or limit the impact of their arrival.
The bacteria and wastewater is mixed in an aeration tank and therefore the contaminants are removed by action of sorption and series of breakdown by the bacteria.
Cunningham, William, and Mary Ann Cunningham. "Chapter 18: Water Pollution." Environmental Science. ; A Global Concern. 12th ed. McGraw-Hill Higher Education, 2011. 396-421. Print.
The half treated water then goes by gravity to covered aeration tanks where it is mixed with "activated sludge" which contains aerobic bacteria. The bacteria eat the organic things remaining in the water. In order to provide a good environment for the bacteria to multiply, air is pumped and spread into the water by blowers. The water, air and ...
The original goal of the Clean Water Act was to eliminate the discharge of untreated wastewater from municipal and industrial sources and thus make American waterways safe for swimming and fishing (the use of surface water for drinking purposes is covered under separate legislation, the Safe Drinking Water Act). Toward this end, the federal government provided billions of dollars in grants to finance the building of sewage treatment facilities around the country. The Clean Water Act also required businesses to apply for federal permits to discharge pollutants into waterways, as well as to reduce the amount of their discharges over time.
There are many different ways that we as the earths population are destroying the environment. For example, the tall cooling towers used by industries. They do not remove pollutants but simply push them higher into the atmosphere, in this way they reduce their concentration at that particular area. The pollutants may then travel over large distances and produce negative effects in areas far away from the original site.
Before water is used it goes through a number of treatments. Firstly, the water is pumped from its source into pipes of holding tanks. The water is then screened by means of physically removing large debris such as branches, sticks, leaves and trash. They need to be removed in order to prevent complications with further purification processes. Water from the river banks may also be stored in reservoirs for a few days or months in order to allow natural biological purification to take place. Many waters which are rich in hard salts are treated with sodium carbonate to force calcium carbonate out by using the common ion effect. Many waters are also chlorinated to diminish growth of pollution-causing organisms on the pipe-work tanks. Chlorine gas or Sodium Hypochlorite reacts with organic compounds within the water and this causes potentially harmful chemical by-products to form. Trihalomethanes and haloacetic acids which form are both carcinogenic in large quantities. Chlorine also does not kill gardia and cryptosporidium. Chlorine dioxide create excessive amounts of chlorate and chlorite and poses as an extreme risk in handling since it is an explosive gas. ...
Efforts to improve the standard of living for humans--through the control of nature and the development of new products--have also resulted in the pollution, or contamination, of the environment. Much of the world's air, water, and land is now partially poisoned by chemical wastes. Some places have become uninhabitable. This pollution exposes people all around the globe to new risks from disease. Many species of plants and animals have become endangered or are now extinct. As a result of these developments, governments have passed laws to limit or reverse the threat of environmental pollution.
Our planet is suffering from severe pollution, which ranges from contaminated air, water and soil as well. Humans are doing nothing to reduce the amount of pollution that is harming our earth. To understand how pollution works first you must understand that there are different types of pollution. The most common types of pollution and the ones that I will be focusing on which are the ones doing the most harm to our planet are air pollution, water pollution, soil contamination and littering. In order to help out and reduce pollution in our planet people need to be more aware of what these problems are and about the severe damages that they are causing our planet. Before industrialization really jumped into place and had an effect on large cities, nature had its own way of cleaning up its own air and itself. Wind scattered gases, rain washed many substances and the rest dissolved into the ground; while plants absorbed carbon dioxide and made it into oxygen. With big cities growing more every time and with more towns that were becoming more industrialized a lot of more waste began to be released into the environment and the atmosphere and soon this was more than enough for nature to handle. In order to stop and reduce pollution people need to understand the damage that it is causing our environment and our planet as well. People need to be more aware of how they can help out and do their part in reducing these problems that are causing our planet to die slowly with people not even noticing it.