Eutrophication

Save the Harbor/Save the Bay - Since 1986 Lynn Water and Sewer has won multiple awards including the George W. Burke Safety Award and plant performance awards including Best Performing Large Waste Water Plant. Additionally, in the past 10 years they have passed all inspections by the EPA and DEP and have made many energy improvements. As a result of these energy improvements, they were awarded the Massachusetts Energy Improvement Award in 2011. (http://www.lynnwatersewer.org/about.shtml)…

Describe the problem of farming poor soils in Australia. https://www.youtube.com/watch?v=P4pX5W_WwU4 Australia's soils are naturally unsuitable for agriculture with most land being shallow, high in salt stores and low in nutrients. Only 6% of the land is farmland without irrigation and salt, waterlogging or acidity. 91% of Australia is covered by native flora, though native plants cover most of Australia’s desert landscapes. Australia is one of the oldest land surfaces on earth but the…

Introduction Water is a chemical compound comprised of two hydrogen atoms and one oxygen atom and is written in the chemical equation form of H2O. Water has a tetrahedral molecular shape which is also known as tetrahedral electron pair geometry (Ophardt, 2003). This arrangement is due to valence electron pairs, mutually repelling each other at a 109.5-degree angle. This repulsion is caused by a non-bonding pair of electrons and two hydrogen atoms which in turn repel against each other to form…

ionised and unionised forms when ammonia dissolves in water. Unionised NH3 is toxic and increases in toxicity when the temperature and pH rises. When assessing water quality it is important to measure unionised ammonia along with total ammonia. Eutrophication and subsequent degradation can result in excessive concentrations of nitrogen in stream water quality. Levels above 10 mg/L of nitrate in drinking water can be very dangerous, especially to young children. An example of this is Blue Baby…

First, it may lead to Cultural eutrophication which occurs when excessive nutrients are added into lakes, rivers, and Oceans.This encourages the growth of algae which will cover the surface or water and there won’t be many sunlight and oxygen in the oceans because the algae will be using…

and organisms.” Boyd, C (2014, December 12). The burning of fossil fuels, planting of nitrogen dependent crops, and livestock production. These major human activities collectively increase nitrogen levels that deplete the ozone, and increase eutrophication in oceans and other…

begins to be consumed by bacteria, it consequently takes away from the DO avaliable for fish. This decrease in DO required for aquatic life causes competition between species within the water, further causing a spike in death rate. This concept of eutrophication is ultimately a result of increased concentration of nutrients such as phosphorous and nitrogen. Additionally, the fluctuation (not solely decrease) in DO reduces the growth rate of various aquatic species such as the rock bass and…

Phosphorus was discovered by the German alchemist Hennig Brandt, in 1669. In a surely arduous process, Brandt heated and processed 50 to 60 buckets, per experiment, of urine until he isolated a substance he named ‘light-bearer’ or phosphorus. Each of these experiments could take two weeks. He would let these buckets of urine stand until they ‘bred worms’. Brandt would then boil the urine with sand, and this is how he distilled elemental phosphorus. This discovery is also notable, aside from…

1. Introduction Pre-industrial revolution, humans beings used to live a primitive life whereby they used wood for cooking, warming house; as biofuel. Even later when they lived in houses, they used candles to light up their homes. Post-industrial revolution, human beings discovered new energy resources which have made life much easier to live. And the discovery of these resources (coal and oil), have also supported the advancement of new technologies e.g. automobiles, airplanes, generation of…

The Cook Islands is a Polynesian country comprising 15 small islands with a total land area of 240 km2 (Table 1), located in the South Pacific Ocean, but its Exclusive Economic Zone (EEZ) covers an ocean area of 1.8 million km2. The country of the Cook Islands consists of two main groups, one in the north and one in the south. The southern group is nine elevated islands mainly of volcanic origin although some are virtually atolls. The majority of the population lives in the southern group (Fig.…