Essay On Water Pollution In Bangladesh

Many Ohio residents believe that the groundwater is safe to drink, but our experiments suggest that there are high levels of chemical X in the Ohio groundwater.

Comprising over seventy percent of the Earth's surface, water is undeniably the most valuable natural resource. Life on Earth would be non-existent without water because it is essential for everything on our planet to grow. The human body is composed of 50-80% water. Blood and muscles contain significant amounts, and approximately 95% of the brain is water. All body systems and organs need water to function properly, and will shut down without it. Most of the chemical reactions that take place in our body need water as their medium. We can live without food for a few weeks, but can survive only a few days without water. It's essential because unlike other nutrients, water isn't stored in the body. Typically, everyday, we lose around 10

Water is probably the most important resource we as people have. Humans can survive without food for several weeks, but without water we would die in less than a week. On a slightly less dramatic note, millions of liters of water are needed every day worldwide for washing, irrigating crops, and cooling industrial processes, not to mention leisure industries such as swimming pools and water-sports centers. Despite our dependence on water, we use it as a dumping ground for all sorts of waste, and do very little to protect the water supplies we have.

Richard Smith, Richard Alexander, and M.Gordon Wolman, Water Quality Trends in the Nation's Rivers. 235 Science 1607, 1987.

The contamination was ultimately found to be Escherichia coli 0157:H7 commonly referred to as E. coli or EC0157. Investigations by the U.S. Environmental Protection Agency (EPA) and the Missouri state and county public health departments determined the most probable source of contamination was leakage of sewage near broken water main lines that then entered the drinking water distribution system (Swerdlow et al, 1992). According to the report by Swerdlow et al (1992), this particular incident had the distinction of being not only the largest incidence of EC0157 infection at that time but also “the first due to a multiple resistant organism, and the first documented to be transmitted by water” (Swerdlow et al, 1992, p. 818). Testing of water taken directly from the wells in Cabool revealed the water contamination did not occur in the ground water itself but was initiated in and then distributed via the water supply system.

In our society we are encountering environmental issue with water pollution. The world development of modern agriculture and industry, water pollution has been a major problem.

7. The Safe Drinking Water Act of 1974 established the basic framework for protecting the drinking water of the United States. Most ground water used for drinking water occurs near the earth’s surface and is easily contaminated .The major concern is the potential contamination of underground sources of the drinking water by any of the hundreds or thousands of subsurface wastewater disposal .Waste disposal wells dispose of approximately more than 11% of the nation’s toxic fluid waste. The injection wells can be good or bad and cause a major problem. Some of the wells are used many different ways like for a aquifer recharge and the production of oil, gas, or minerals. Also for improper usage as disposal of toxic and hazardous waste. The EPA

During the late 60’s and early 70’s a series of studies were conducted on public water supplies due to health concerns, which concluded that many treatment facilities were inadequate (2000). In an effort to address public health concerns, Congress enacted the Safe Drinking Water Act (SDWA) of 1974, which was amended in 1986 and 1996 (2000). The SDWA outlines the federal standards for public drinking water, waste management, protection of drinking water sources, and the financial infrastructure for projects (Tiemann, 2014).

This report is based upon the collected data from scientific tests and different data collection experiments, these diverse range of observations helped in determining the health of the river and catchment as a whole. The experiments tested a range of variables, some including; the levels of nitrates, phosphates, temperature of water, pH levels, turbidity of water and dissolved solids. The collection of water and recordings of microorganisms was examined and also recorded. As well as these scientific tests, simple recordings were also taken of the surrounding area and the amounts of rubbish and infrastructure that could be seen. The tests conducted in the river system occurred on the 24th of May 2016, to conduct the tests the trail along the river was walked, furthering the knowledge of the health of the river and how the the catchment area as a whole was fairing. However, some differences to the data could be assumed as when tested it was not always done by the same person, this could have then limited the accuracy. Another

illegal level of bacterial growth. This study also found high levels as high as 13 parts per billion of arsenic tap water is only allowed to have 5 parts per billion.

This chemical tends to occur naturally in soil, so sometimes it can make its way into your well. If you drink too much water contaminated with arsenic, you will be susceptible to an array of harsh side effects such as vomiting and a burning feeling. If your water supply is never checked and you drink arsenic-laced water regularly over time, your risk factor for developing several kinds of cancer will increase substantially.

Among the years of 2013, 2015, and 2017, the there were some water quality components that stayed stable throughout and some that fluctuated between Reach 2 and Reach 3. For Reach 2, only the amount of dissolved oxygen increased at a constant level. The biotic index was pretty stable and the plants are compensating with the amount of dissolved oxygen to the increase of the biotic index. For Reach 3, the biotic indexes seem to be decreasing at a constant rate throughout the years observed. Throughout the years, the

The results for DO include 12/3/12: 3.2 Mg/L, 13/3/13 29 Mg/L, 14/3/14 66.73 Mg/L or % saturation? 15/3/15 92% saturation, 15/9/15 85% saturation. I think 66.73 result was % saturation so that is the result I am using. Recordings of Freshwater Creek on the 22nd of February 2016 show results of DO in both Mg/L and % saturation, these results are 6.32 Mg/L and 80% saturation and for air temp 27.13 Degrees Celsius. Resource 4 shows that water and air temperature coincide with the amount of average/normal Mg/L of DO and Degrees Celsius. For 27.13 Degrees Celsius the Mg/L should be around 8, since the result is 6.32 Mg/L this is under normal amount, however it is not at 0 so the water isn’t completely contaminated/polluted. The year 2012 DO was at an extremely low 3.2 Mg/L this could have been a migration of fish such as tilapia which may have caused many fish to die off, however the next year the Mg/L was at 29 which may have been a direct result of either migrant fish killing off other fish or flooding which killed fish. A significant trend to result was the temperature were the temperature only fluctuated by less than 1.5 degree (resource 5) however that trend is broken due to 2016 results of 27.13 Degrees which is an unusual result due to the

All around the world, countries are fighting to keep their drinking water clean. Whether it’s streams, rivers, or lakes, countries have taken great measures to maintain high quality drinking water for both human consumption and animal consumption. Countries must first understand the sources of the polltion, then determine the best methods to eliminate the pollution. Clean drinking water is a valuable resource and a the key to human survival. Plants and animals also depend on water for their growth, so all water must be kept clean. The major contributors to water pollution can be classified in three categories, industrial, agricultural and municipal.

Is Brunei’s water cleaner than the water of Citarum River, the world’s dirtiest river in Indonesia? It sure is but that does not mean we should ignore the fact that it is polluted. Dirty water has also contributed to global warming; a problem the whole world is trying to reduce. Floating garbage on the water is a sight nobody wants to see and no aquatic animals would want to live or not be able to live in dirty water which could reduce tourists coming to the country which could affect the country’s economy and could reduce the country’s fish resources. The rivers are important sources of water and food for any country. Including Brunei, a country so small it could not afford to lose these important sources. The Brunei government and the local