Nobody downloaded yet

Ecosystem Toxic Chemical Threat - Essay Example

Comments (0) Cite this document
Name of student: Tutor: Ecosystem Toxic Chemical Threat SECTION ONE Toxic heavy metals I have chosen on this topic based on the information released by Environmental Protection Agency (EPA) in their previous year 2011 annual meeting, that the contamination or pollution of clean water with a broad variety of pollutants, such as heavy metals, has reached a matter of a global concern for last the few years…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER91.1% of users find it useful
Ecosystem Toxic Chemical Threat
Read TextPreview

Extract of sample
"Ecosystem Toxic Chemical Threat"

Download file to see previous pages SECTION TWO Question1. Is this an Acute or Chronic Environmental Threat? The presence of heavy metals in our environment causes chronic hazards to aquatic life and environment. This is because the metals are accumulative poisons that affect their health adversely when they expose or consume them frequently for a longer period of time. Similarly, it has a long-term effect on the environment through constant emissions or discharge to soil, water and surface depending on the source of the contaminants, level and duration of exposure (Palmer 121) Question 2 Is this a systemic (ecosystem) or Targeted Species Threat? Heavy metals are majorly released into the environment largely by manmade activities such as industrial processing and discharge from sewage plants and agricultural activities. This makes it to be more hazardous to both environment and aquatic life, hence, attracting deep concern globally on its mitigation options and control. Question 3 How likely is it that the chemical will be discharged in sufficient amount to do serious harm? The rate at which wastes from the industries and agricultural or sewage plants are releasing their contaminated discharges having lethal heavy metals into aquatic environment is astonishingly high. Given that these activities are manmade and owing to steady increase of global population, the rate at which these activities takes place also increases, generating sufficient amount of deadly heavy metals into marine ecosystem that can result into negative impact on the lives of aquatic population. Question 4 How severe are the consequences of the potential exposure? Potential exposure to heavy metals has adverse effects to aquatic life. For example, presence of cadmium in the ecosystem and in aquatic environment poses adverse effect to both the environment and the aquatic life. According to UNEP (2002), it is recognized as one of the most lethal hazardous water contaminants and could be harmful at every level in ranging from organism to cell elements. The harmful value for fish falls within the acceptable limit range of 0.5 ?g/dm3 to 21.1 mg/dm3. Given that this heavy metal has a chronic effect, its accumulative contamination effects can cause detrimental disturbance to aquatic life and the ecosystem. For example, in the case of fish, its effects range from abnormal behavior in fish metabolism, movement behavior to anorexia. Safety and Health Agency (OSHA) clarifies that it is a prospective aquatic carcinogen and is highly linked with anomalous functioning of the aquatic blood cell system. Based on its effects, both the species of chromium are connected to DNA malfunctions of the aquatic animal upon exposure. Similarly, long term accumulation of chromium in the marine environment has adversely affected the aquatic life in this ecosystem. Chromium majorly exist in both Cr (III) and Cr (VI) oxidation states. Chromium (VI) is considered to be more disastrous to aquatic life compared to the former ion Cr 3+. This is because it is readily soluble and mobile in aquatic environment. Question 5 How wide spread is the ecological threat - How many ecosystems and/or species are threatened by the expected exposure? According to Environmental Protection Agency (EPA) report released in 2004, this group of ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Ecosystem Toxic Chemical Threat Essay Example | Topics and Well Written Essays - 1250 words”, n.d.)
Retrieved from
(Ecosystem Toxic Chemical Threat Essay Example | Topics and Well Written Essays - 1250 Words)
“Ecosystem Toxic Chemical Threat Essay Example | Topics and Well Written Essays - 1250 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Ecosystem toxic chemical threat
...? ECOSYSTEM TOXIC CHEMICAL THREAT The environment has been exposed to numerous harmful substances due to human activities. Chemical threats often occur by either deliberate exposure of poisonous materials or through accident. These poisonous materials are extremely harmful to humans, animals as well as vegetation. They are released from oil leakages, industrial emissions, motor vehicles among other sources. The emission of dioxins is viewed as a main environmental impact of the combustion process. This paper identifies dioxins as toxic compounds and shows the physical and chemical properties of dioxins...
5 Pages(1250 words)Research Paper
Human Toxic Chemical Hazard And Risk Assessment
...?Human Toxic Chemical Hazard i. Indentifying toxic chemical substance Aflatoxins are types of mycotoxins produced by a type of fungus called the Aspergillus flavus. Aflatoxins are toxic chemicals that are harmful to the human body. This chemical substance occurs in form of molds that grows in legumes, seeds and nuts (Smith, 26). According to Cornell University, department of animal science, the toxic chemical is produced by certain foods or feeds. These mycotoxins are the most studied of all toxins in the world, and known to cause diseases such as aflatoxicosis. The occurrence of this toxin is greatly influenced by the environmental factors, thus its contamination varies depending on the geographic location, agricultural practices... and the...
5 Pages(1250 words)Essay
Ecosystem Toxic Chemical Threat
.... Some articles in the website even said that the government and environmental organizations only publicize an apparent human-made global warming to get more funding (“Great Global Warming: News and Truth about Global Warming”). Section Two: Address the vulnerability of the environment - ecosystem to the specific Chemical Threat 1. Is this an acute or chronic environmental threat? Greenhouse gases are chronic environmental threat. They have been present in the atmosphere possibly even before life existence. In fact, carbon dioxide is needed by plants to produce food and release oxygen. However, its environmental effects have currently been manifesting...
5 Pages(1250 words)Essay
...are a most likely occurrence. The carcinogenic properties of most food and drink additives such as cyclamates and saccharin have been proven beyond reasonable doubt by researchers. These chemicals cause brain tumors in rats and since rats share many genetic characteristics with humans, the effect on human consumers should be more or less the same. The two artificial sweeteners are found in most manufactured foods and drinks and were mostly used in the United States during the two world wars (Miller and Spoolman 11). These findings lead to the banning of cyclamates due to its adverse effects. As a developmental toxic threat, food and drink additives have been proven to cause hyperactivity...
5 Pages(1250 words)Essay
...adverse effects depending on the type of pollutant they are exposed to (Dickey, 2009). Air pollution is both a chronic and acute chemical threat. This is because it is an amalgamation of various toxic chemicals in the air. Some effects of bad ozone on human health are considered chronic. This leads to different types of chronic respiratory diseases, including asthma. On the other hand, particulate matter has acute effects on health. This leads to restricted activity, which makes one to lose work or school days because of respiratory illnesses. One might also experience asthma exacerbations, bronchitis, and chronic cough among others. However, people more vulnerable to...
5 Pages(1250 words)Essay
...Ecosystem Toxic Threat Risk Assessment Section One: Identification and Justification of the Specific Environmental Chemical Threat The Environmental Chemical Threat chosen upon is the vehicle exhaust emissions that make up a large percentage of the chemical threats to the environment especially in the gaseous and small solids. The impact of the motor vehicle exhaust emissions is widespread given that the uses of vehicles are many and varied with every industry using vehicles in one way or the other. While the majority of vehicles are personal vehicles that are owned by individuals, there...
5 Pages(1250 words)Essay
Nuclear Biological Chemical threat/preparedness
...). The CTDF commenced operations with toxic chemical agents in March. This facilities offer CBN training to the chemical soldiers on how to handle the CBRN threats incase of their occurrence. The participants receive training on toxic agents, CBN agents, and confidence-building. This integrated training is incorporated in the physical training program for military officers. The CDTF trains the U.S Military, Central Intelligence Agency, Homeland security, and the FBI. He also pointed out that it is true that the Joint Biological Point Detection System (JBPDS and Biological Integrated Detection System (BIDS) are the only systems that can detect NBC agents,...
15 Pages(3750 words)Research Paper
Environmental chemical threat
...ESSAY There are a number of chemical threats in the environment that pose a health risk to the general population. In accordance measures are usually taken by organizations such as the Food and Drug Administration who caution the public on potential risks and possible solutions. Methylmercury is a chemical compound that contains mercury and is regarded as poisonous. Methylmercury is highly toxic to mammals, including people, and causes a number of adverse effects (EPA). Methylmercury can be both an acute or chronic environmental threat, it depends on the level of toxicity present during exposure. Methylmercury can be highly...
4 Pages(1000 words)Essay
Toxic Culture
...Toxic culture Leaders have a significant role in any organizational culture. They have a huge influence on how people behave and think. In most organizations, the leader is responsible for setting the context in which organizational members interact; hence, it is easy for them to be looked at as the role models. From my understanding of leadership and organizational culture, leadership is responsible for setting up the organization culture, and in turn, the set culture influences the leadership (Malby, 2007). In the article Who’s to Blame for Creating a Toxic Organizational Culture, I will agree with Guthries position basing on the fact that it’s the leaders responsibility to create and shape the...
1 Pages(250 words)Essay
Toxic Chemical Agent Incident Response affiliation Introduction Gas leakage in an industry can cause serious health problems as it enters thebody through the most vulnerable route of inhalation. In case of a gas leak, the management of the organization must respond by coming up with measures that can caution the employees and the nearby community from the toxic effects of the gas. Methyl isocyanate leakages can results to a number of effects if emergency response is not done in time. The gas can cause respiratory compromise as it results in coughing and irritation of the throat. The gas can also cause irritation of the eye as well as skin damage (Williams, 2013). Incident command system is a well-organized tool that can be used to manage a disaster in a...
5 Pages(1250 words)Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Ecosystem Toxic Chemical Threat for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us