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Negative effects of excessive use of pesticides on the environment
Negative effects of excessive use of pesticides on the environment
Eutrophication brief essay
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A single water drop traveling from any river to any ocean is influenced with more than one hundred toxic chemicals and thousands of industrial pollutants. This is what people call water pollution, occurring in any state, country or continent. Unfortunately, throughout the centuries, water pollution has been an ongoing problem, mainly caused by the release of industrial toxins and chemicals. People around the world believe that plastic and metal make up the vast majority of this issue, but as years have come and gone, the quantity of chemicals released by small and large facilities are now the leading cause of water pollution. Although industries need to release waste somewhere, they should avoid putting it in waterways because it impacts the …show more content…
Not many know that eutrophication is an over abundance of nutrients in a water body induced by nitrogen and phosphate levels escalating from chemicals and pesticides. Eutrophication produces algae to the extent of depleting the water of oxygen, killing off all marine life by suffocation. There are many possible reasons why nitrogen and phosphate levels rise, but they have mainly been “associated with discharge of wastewater treatment works effluent, urban run-off . . . mining and agricultural activity” (Griffin 2). Effluent is liquid waste discharged into river or oceans. Urban run-off is rainwater that travels to nearby communities and cause flooding, but mainly water pollution. Mining and agricultural activity both release pesticides and chemicals illegally, or accidentally, causing water pollution. Notice the common association: they all cause water pollution. Rarely anybody knows that enough water pollution can change the amount of nutrition in waters as quick as lightning, suffocating any surrounding organisms. Chemicals have a composition that botches the levels of nutrition in water, mainly caused by “...agriculture... in this regard, because increased fertilizer use and intensive livestock farming increase nutrient inputs” (Ilić and Panjan 3). Manure and strong fertilizers have certain compounds found inside that are directly discharged from livestock farms, altering the physical and biological aspects of water. Even though nutrition is found in water at low levels, a high enough contamination of pesticides has a major of affect on the survival rate of marine life. The authors expresses that when eutrophication occurs, algae grows and suffocates the fish, leaving the survival rate at low
Nitrogen and nitrates relate to Hypoxia via the process of eutrophication. Since Nitrogen is a limiting nutrient in most waters, the added input of nitrate causes massive growth in algae. The algae rapidly consume all available N, and once the nutrient is limited again, the alga dies en masse. As the alga decomposes, oxygen is depleted in the water. This lowers dangerously lowers the level of dissolved oxygen in the water, which harms living organisms in the area. Small organisms and organisms that are immobile or unable to escape low-oxygen areas are particularly vulnerable. Hypoxia and resulting “dead zones” are harmful to local fishing and shrimping industries and algal blooms hurt the tourism industry. Hypoxia has lead to a decrease of about 25% in the brown shrimp habitat, forcing shrimping operations further offshore. As the hypoxia issue continues to grow, negative human effects will only increase. Since nitrate runoff from ag. has been proven to be the dominant source of hypoxia, policies could be enacted to effectively deal with “point-source” pollution. This makes enacting environmental policy more easily adapted, possibly included in past policy such as the Clean Water Act.
During the summers the oxygen content atop the water normally has a salinity level consistent with “more than 8 milligrams per liter”; but when oxygen content drops down to “less than 2 milligrams per liter” the water is then known to be in hypoxic state (CENR, 2000; USGS, 2006). Hypoxia is the result of oxygen levels decreasing to the point where aquatic organisms can no longer survive in the water column. Organisms such as fish, shrimps, and crabs are capable to evacuate the area but the fauna that cannot move either become stress and/or die. Due to this, many call the hypoxia zone the “dead zone” (Overview, 2008; USGS, 2006).
The agriculture industries have affected the marine life due to eutrophication. Eutrophication occurs when human activity water because of the chemicals, nitrogen and phosphorus which run off into the water. Eutrophication results in algal bloom. An algal bloom forms when lots of nitrogen and phosphorus are set inside a body of water which results in an excess amount of algae in lakes, oceans, or streams. The waters can not take in a lot of algae because in can affect the habitat of the animals. It can also affect the population of the sea animals.
Whether we want to believe it or not water pollution is one of the world’s l...
Water pollution has had devastating effects on the environment, which include irreversible effects to the oceans ecosystem. People often underestimate the importance of the ocean. They don’t realize how much damage pollution has caused to the ocean and the thousand of creatures that inhabit it. Earth is a huge place, but resources are actually very limited and will not last forever; unless there is a balance. We must protect the resources we have in order for them to last into the next generation. Every time we throw away a plastic bottle, drive our cars, and even burn those millions of fossil fuels to operate all those huge factories, there is a chance it will pollute the ocean and eventually effect the way we live. There should be stricter laws regulating human pollution, in order to protect our oceans ecosystem.
Eutrophication is, in the simplest terms, too much of a good thing. It occurs when too many nutrients are deposited into a body of water, throwing off the established balance of production and consumption of organic matter. Eutrophication can take place in ponds, lakes, rivers, and oceans. At first, the overload of nutrients in the body of water encourages plant growth. However, soon this excess of organic material uses up most of the available oxygen in the water, taking it away from the other plants and animals. These other organisms can no longer survive with such depleted oxygen levels and die off, creating what is referred to sometimes as a "dead zone", devoid of life.
“For many years the rivers flowing into the Mediterranean sea and the sea itself were seen as convenient dumping grounds for domestic and industrial waste.” (Chiras,2015). Many people polluted the environment without even realizing the effect they were having. This created major problems later on for future generations. “Pollution also enter surface waters from the air and surrounding lakes.”
Can you imagine a world where clean water does not exist anymore? Can you imagine going to your kitchen and seeing black water instead of clear coming out of the faucet? Would you still go to the park if the rivers, lakes, and oceans would turn the color of oil and pollution? Would you still take your kids to see the fish and other living species if they were no longer living and floating belly up? How much would you pay to get the clean rivers, lakes, and oceans back? How much would it cost to get the living organisms living again in the rivers, lakes, and oceans? Maybe it is hard to imagine this world today because it is not as bad, water is not black, and living organisms don’t float bellies up when you walk by, but if we don’t think of the long run consequences of our polluting way of life today this horrible world won’t be so hard to imagine. Water covers about 70% of the Earth’s surface. It is the most valuable natural resource we have. For the most part all living organism require water to live, without water we would not exist. Water pollution is a very huge problem. By polluting our rivers, lakes, and oceans we are harming our planet. Organisms are dying at a very disturbing rate. Our drinking water has become greatly affected as well. There are a variety of causes of pollution they include sewage, fertilizers, wash off deposits, pathogens, petroleum, radioactive substances, heat, and other. The enormous accidental petroleum spills are an important cause of pollution especially along shore lines. Off-shore drilling operations contribute to the pollution pool. Certain statistical estimates state that for every million tons of oil transported one ton gets spilled. This paper will concentrate on oil s...
Nutrients are substances that all living organisms need for growth and reproduction. Two major nutrients which are nitrogen and phosphorus occur naturally in water, soil and air. Nutrients are present in animal and human waste and chemical fertilizer. But, if the nutrients are in excessive amount, it will tend to cause nutrients pollution towards the environment. The over-development in agriculture and industrial area had accelerated the rate at which the wastewater containing excessive nutrients (mainly nitrogen and phosphorus) entering ecosystem without proper controlling system. There are many primary sources of nutrient pollution that will eventually create the eutrophication effect.
toxic waste causes many sea life deaths, and chemicals can leave long-lasting, damaging effects on food chains. The first cause and effect that pollution has on ocean life is that dumping waste or littering cause fish growth to deteriorate. There is a huge amount of waste in the oceans today and this hasn’t had a great effect on the sea life. In passage one, the author claims that, “Ballast water tends to proliferate and transfer organisms that debilitate the growth of naturally occurring fishes in a particular oceanic area.”
One of the pollutants companies cause is water pollution. Water pollution is the impurity of water by chemicals, pathogens and other elements that make water undrinkable. Companies such as Industrial plants are producing more than half of the united states water pollution because when their water sources take away all of the industrial wastes from the manufacturing facilities, they often carry the wastes into waterways and streams which then spread the pollutants into a much bigger area and flow into oceans and rivers. ” More than 40 percent of America’s lakes, rivers, and estuaries were too polluted for drinkin...
Oroian, Viman Oana I. "Damaging Effects of Overall Water Pollution." BioFlux (2010): 113-15. Web. 16 Apr. 2014.
In recent years, increasing awareness of water pollution and its far reaching effects has prompted concerted efforts towards pollution abatement. There are so many pollutants (bacteria, heavy metals, chemical, etc.) found in water. If we do not find solutions to clean our water, our marine animals will die.
Different pollutants cause different things to happen to plants. Sometimes, water pollution causes an explosion of new plant growth by providing necessary nutrients and food. If there is too much of one species, this can harm or kill plants by changing their growing conditions, such as raising or lowering the environment’s acidity. Plants must take in nutrients from the surrounding environment in order to grow. Nitrogen and phosphorus, in particular, help a plant’s growth because they are important in photosynthesis. This is why they are common ingredients in plant fertilizers. When runoff from farms pollute waterways with nitrogen and fertilizers rich with phosphorus, the water enriched with nutrients often have stunts of growth. Sometimes too much growth can be harmful, as when plant-like algae bloom in polluted waters and create oxygen-depleted dead zones. One solution to this issue is planting seaweed farms in areas that get alot of runoff from farms. This is because seaweed can soak up the excess nutrients and be harvested for people to eat. Marine debris is garbage that ends up in the ocean. Plastic debris that builds up at or near the water’s surface blocks sunlight from fully reaching plants that rely on sunlight to move along the photosynthesis process. By blocking sunlight, marine debris prevent plants from creating glucose at full capacity, which stunts their growth. When chemical pollutants
Water is an important part in the world, it’s essential for life, so why pollute it? Chemical and plastic pollution harm the environment and marine life. There are many effects in water pollution and there are many different types of water pollution.