Contaminants College Essays Samples For Students

Food Contaminants

Food contamination refers to food that contains substances that make the food unsuitable for human consumption. Food contaminants are essential to public health because food contaminants cause illness and can even cause death in extreme cases. This topic is relevant today because food-borne diseases are a serious public health challenge all over the world.

There three main types of food contaminants; biological, chemical and physical. Biological comprise of living microorganisms contained in food such as bacteria, parasites and viruses. These microorganisms get into food in various ways. Poultry or meat maybe contaminated with intestinal bacteria when the meat is being ...

The article ‘A Rising Tide of Contaminants’ is about the alarming increase of chemicals and substances in the water bodies. The author, Deborah Blum, discusses the major reasons for the increase in the contaminants in the lakes and how the government should act for this issue. The two main reason for the increasing contaminants in the lakes is the unregulated increase of pharmaceutical and agricultural chemicals and the lack of federal government actions regarding chemical exposures. Scientists are suspecting that the production of the new pharmaceutical and agricultural chemicals are contaminating the water bodies through water sewage system. The ...

Landscaping can make our home or university attractive and increase its value. It is also a way of investment. However, there are repercussions if landscaping is not properly done like its effects on the environment and the natural habitat.
Costs for landscaping will depend on the taste and financial capability of the university. Landscaping projects can be as simple as a home garden or as complex as a city park, with trees and plants lining up that can be as costly as those in a luxury hotel. There can be landscapes that need a lot of water or a ...

Short title- Effects of Groundwater Contamination

Full title- Effects of Groundwater contamination on water quality utilized for drinking purposes
Lab 2 - Experiment 1: Effects of Groundwater Contamination
Hypothesis:
Laundry detergent is responsible for causing maximum groundwater contamination due to the presence of components like, surfactants containing Alkylbenzenesulphonates and bleaches containing Sodium hypochlorite, and bleach activators containing Tetraacetylethylenediamine.

Post-Lab Questions

- Restate your hypothesis. Was it confirmed or denied? How do you know?

As per our hypothesis, laundry detergent is responsible for causing maximum groundwater contamination.

Yes, our hypothesis was confirmed.
This was because of the physical presence of foam and soapy and grassy smell in the water which was mixed with laundry detergent and passed ...

WATER QUALITY AND CONTAMINATION REPORT

ABSTRACT
The process of water filtration systems is to remove impurities from a water source to create potable water in sufficient quantities to supply a municipality. In order to do this water is filtered by several different processes to remove different types of impurities. To test the efficacy of these different processes, a series of laboratory experiments was set up using the same type of materials and processes, but on a smaller scale. The data suggests that these processes are effective in removing most impurities and contaminants, However there is room for improvement and a higher quality of drinking water could be obtained ...

INTRODUCTION

Water is an essential element of the ecosystem. In fact, it controls all processes related to the ecosystem. It acts as a base upon which all human, animal and plant life survives. The food consumed and the habitats of all animals and humans are all part and parcel of the positive impacts this natural resource holds over life. However, there have not been significant measures designed to protect this natural resource so as to keep it in its original form without placing an undue imbalance within the ecosystem (National Resources Defense Council, 2014). Environmental activists have come out several times ...

One of the most concerning environmental issues of our time is water quality. Particularly, the presence of the so-called emerging contaminants has posed a challenge for current water treatment methods. Emerging contaminants are compounds that under conventional water quality standards are virtually unnoticeable. In this new category, perhaps the most worrisome are the pharmaceutical or personal care products (PPCPs). This denomination makes reference to prescription and over-the-counter drugs for human and veterinary consumption as well as to fragrances, perfumes, deodorants, and soaps among many others (Hansen, 2007). Even though these compounds are generally found in very low concentrations, some of ...

Abstract

Water is one of the fundamental requirements for any form of living thing on earth. It is known for the many vital roles that it plays in the continued survival of animals and growth of plants. In animals, water plays an essential role in maintaining many processes that take place both in the system of the animal and the outside world as well. Water acts as a medium through which most chemical reactions take place within the body system of all animals. In plants, it plays several roles, mainly by allowing the absorption of dissolved nutrients and mineral salts present ...

The hydrological cycle depicts the movement and existence of water above, in, and on the Earth. Water on earth is always under constant movement, and its states always vary from solid to liquid to vapor. The hydrological cycle has no starting point, but its assumed it begins mostly in large water bodies such oceans. The process kick starts when sun heats water in large bodies, which in turn evaporate as vapor into the atmosphere. Due to low temperatures, Ice and snow at times can directly sublimate into water vapor, which collects with other rising currents from plants and soil, ...

Background information

The need for clean water for use by humanity has since time immemorial been an area of concern with scientists and scholars inventing methods that prove to be more efficient than their predecessors. The ultimate goal has always been the removal of undesirable chemicals and pathogens that would, however, render the water unfit for human and industrial consumption. In today’s contemporary society, human activity has culminated into pollution of the natural environment including water catchment areas. This has therefore made water unfit for consumption thereby prompting for more cost-effective and efficient methods for purification of this natural resource. ...

Introduction

Pollution is the disposal of pollutants or contaminants which could alter and destroy the natural environment or even an ecosystem. Pollutants have many forms such as solid, liquid, noise and radiation. There are also many types of environment or natural resources that could be subjected to pollution. Pollution could also be naturally occurring although the main type of pollution which could result to major change is manmade (Helmer, 1997). There are many kinds of pollution, but there are three major kinds due to their size and effect which are water, air and soil pollution.

Water Pollution

Water is one of the ...

Introduction

Water is an amenity and indeed a necessity of the human being. Different epidemic waterborne diseases are due to scarcity of safe drinking water in the world. Water being essentially associated with the earth’s ecosystems can be studied in the context of its relative terms. The human rights emphasis on implementation of global environmental justice and force to adopt such approach that make sure the universal access of people to safe and potable water. That means water should free from contaminations including chemicals and hydrocarbon as detergents, oil and so forth. Ground water contamination is usually found in arid ...

Water Security in North African Sub-Sahara and California

Introduction
Water security refers to the capacity that a population has to ensure that it continues to have a reach to portable to water. Improving the security of a nation’s drinking water is important as it ensures clean and safe water. It is important to plan for and practice natural disasters to establish new security technologies to enable to monitor contaminants and avoid security breaches. The United Nations World Water Development has outlined various challenges facing the water security in developed and developing countries. It is, therefore, of much significance to consider challenges in both divisions and their relation. This ...

Conference on role of organic matter and temperature in contaminant toxicity and global perspective within an ecosystem.

The focus of the first conference was on the role of organic matter and temperature in containment toxicity and a sub-theme was a global perspective within an ecosystem.

About the main theme, one particular presentation struck me. It was on the Sequestration of Hydrophobic Organic Contaminants by Gadsosorbents. It examined the chemical interactions that occur between hydrophobic contaminants and the soil. It suggested that the sediments may lead to strong binding and release rate that is slow and therefore affect remediation rates and endpoints. However, ...

Army field sanitation is important for a number of reasons. First, it can significantly reduce the number of hospital visits and level of emergency care needed for personnel due to conditions brought on by poor hygiene. It can also increase morale and general unit attitudes, making them more actively present in the task at hand and keeping their spirits up. The presence of a skilled unit field sanitation team can keep the troops medically fit through the simple actions of keeping their environment as clean as possible.

Disease and nonbattle injury (DNBI) is a significant problem among battlefield units, as it can ...

Indoor Air Pollution: Diagnosing the Causatives and Effects

Indoor air pollution is the presence of physical, chemical and biological contaminants in the indoor air that are never present in the quality and environmental friendly atmosphere. These contaminants can be particulates, gases, moulds or radon which is the main causes of the pollution. The human immune system protects the entire body against the negative effects of these contaminants. The contaminants impair the immune system after prolonged exposure. A survey published on the metropolitan area of Toronto revealed that almost 2 percents of the annual deaths were caused by indoor air pollution (Tom, 1996). In this essay, we have ...

Introduction

This paper seeks to examine the emerging technologies that are being adopted by tech firms in the need to go green. Companies such as Facebook and Google have come up with initiatives through which they have reduced the amount of energy that the companies use. The policies adopted by Facebook and Google have had a very impactful influence on most small businesses globally (like and ). and are cloud computing service providers with a large number of servers that need to be energy efficient. Therefore, green technology is important when it comes to ensuring that tech companies are energy efficient. The term ‘ ...

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Groundwater contamination by toxic metals and organic compounds is a serious environmental and public health problem (Crini 39). Many of the common contaminants in wastewater are known to be toxic or carcinogenic.
Common groundwater contaminants include heavy metal ions, aromatic compounds, and dyes. Additionally, heavy metals are not biodegradable and tend to bioaccumulate, leading to various diseases and disorders. Mercury and cadmium are among the most toxic metals and are very damaging to the environment. Additionally, chromium (VI) is a wide-spectrum toxin, as it is toxic to bacteria, plants, animals, and humans.
Organic compounds in groundwater are ...

Introduction

There are many instances in the modern world when a certain issue emerges and captures the attention of various stakeholders. These stakeholders include scholars of different subjects as well the media. The issue of interest is approached from all angles by these stakeholders and is exposed to extremely dissection as attempts are made to establish its core. The invasion of Iraq by the United States drew a lot of public interest but in recent years, one implication of this war has once again elevated public interest. There have reports of increased birth defects in the Iraqi regions subjected to bombings by ...

Water Quality and Contamination

Introduction
Water is one of the basic needs of living organisms. Without water, life would be impossible. Humanity is dependent on water for their day to day activities. Basically, the foremost use of water is for drinking. Living organisms like humans have to take in water for their bodies to survive and sustain the various cellular activities. Aside from drinking, man use water for cooking, washing, recreation, cleaning, and keeping plants alive.
Water used for drinking needs to be essentially clean. It must be free from germs and chemicals for the good health of man. Contaminated water ...

Introduction

This paper examines the multiple causes of pollution adversely affecting the waters of Lake Huron, the world’s third largest freshwater lake, having almost 4,000 miles of shoreline (Scharfe, 2008). As well as evaluating and describing the pollution’s causes, the paper also details the impacts of the pollution on the economy and people, so that those responsible for taking action to improve the situation have this important information available.

Causes of the Pollution

According to “Water Pollution in the Great Lakes” (n.d.), the three main sources of pollution are “point source, nonpoint source and atmospheric pollution.” Point source pollution, as its ...

Water pollution denotes the contamination of water by other foreign chemicals that make water become detrimental for plants and animal use. There are several causes of water pollution. These pollutants fall into two main categories namely; indirect and direct contaminants. Water pollution through indirect contaminants occurs when they enter the water supply from the atmosphere through rain or from the groundwater. Direct contaminants are produced by refineries and factories. Water pollution causes a plethora of problems. Water pollution is a threatening concern as it poisons both food animals and drinking water for animals and humans. Another significant problem is that it ...

Dissertation Methodology

RESEARCH STRATEGY

This study was created to 'evaluate the severity of the effects from natural gas flares in the Niger Delta region of Nigeria. It will utilize both a Quantitative Research model to evaluate the amounts of gas flared, the volume of contaminants released into the environment and the potential value of natural gas wasted. That will be followed by a Qualitative Analysis that uses numerical and statistical process to draw out and make generalizations based upon the information structure created from the Quantitative Research and the data sets provided by the various information sources. These information sources include, but are ...

Abstract

The document considers the use and conservation of energy in domestic dwellings using heating systems, specifically water heated boilers, which is the cheapest solution in the market for home heating systems in Ireland and Europe. The document starts with a literature review of the available home heating systems and focuses on boilers due to its availability and price. The literature review includes a standard boiler array for a typical house, the radiators materials, and key concepts to understand the use of boilers for heat generation in homes. Later, it is necessary the calculation of heat transference for a given ...

An Assignment Submitted by

Abstract
This research paper studies the problem of choice between tap and bottled water, and the reasons why most people in the developed countries prefer bottled water over tap water. For this research paper 5 external sources of information were used. "Most Plastic Products Release Estrogenic Chemicals: A Potential Health Problem That Can Be Solved" by PubMed Central (PMC) presents the results of a study of plastic bottles in which bottled water is contained after packaging. Under certain circumstances like hot weather such plastic bottles can release dangerous chemicals into the water. “Thirst for bottled water may hurt environment” ...

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Municipal Solid Waste (MSW) commonly referred as garbage or trash includes waste from durable good (such as furniture, tires), non-durable goods (like plastic and paper cups, newspapers, etc.), packaging waste (cartons, plastic wrap, etc.) and yard and food wastes. MSW is the common wastes from household, office and retails spaces. MSW does not include industrial and hazardous waste. The handling of MSW is a growing concern across all the countries, in United States Food and Yard Waste constitute of approximately 28% of MSW followed by paper waste ( ...

Pollution of water catchment areas is a catastrophic trend that has engulfed the world’s population. Water is a natural resource which every human being cannot survive without. Like the old adage says, “Water is Life” .Therefore, it is the responsibility of members of the society to preserve and safeguard this resource from interference by human nature.
In the effort to investigate the key factors that contribute to pollution of this scarce natural resource, I came across books, articles, newspaper articles on how human effort has invaded the flow of water and contaminated its purity. In addition, several environmental ...

Hydraulic fracturing or fracking is the technology that helps to get non-conventional fossil fuels’ sources. They existed along with traditional fuel basins. But companies weren't interested in these sources until the traditional fuel stores started to dry out. “Fracking, is a drilling technique used for extracting oil or natural gas from deep underground” (Lallanilla, 2015). There are two types of technology: hydraulic fracturing and horizontal drilling. The last one appeared only in 1990s, while hydraulic fracturing was used from 1940s. Both technologies have similar processes.
The first stage is drilling a vertically or angled well to the depth of 1-2 ...

Following the American Psychological Association's Guidelines

OTHER 2
Lt. Governor Spencer J. Cox-Utah and Emergency Response
Lt. Go Cox, the Vice-president of a small telecommunications company, addressed some of the communications-related obstacles as well as problems with the management of volunteers, which needed to be overcome in Sanpete County after the fire at Woodhallow. He was able to help open communications lines for emergency responders. Furthermore, he pointed out the problem that community leaders and emergency responders have had with failing to use resources or "assets at their fingertips" without knowing who would incur a cost. He also mentioned social media's reach to the community-at-large, ...

Abstract

All gas in the Qatar passes through National Grid’s national transmission arrangement on its way to consumers. The owners and operator of gas transmission substructure in Qatar, work with other companies to make sure that gas is obtainable where and when it is wanted. In Qatar Gas flowing that comes from higher to lower pressure is looked at as being the fundamental standard of the natural gas delivery system that involves, pipelines, gas stations. The essay explores the connecting of gas from the natural source such as bottom of the sea (Offshore) and underground (Onshore) to the transmission ...

1. What is the difference between a primary and secondary drinking water standard?
Primary drinking water standard is a set of regulations mandatory for detecting contaminants in drinking water before consumption by the public whereas a secondary drinking water standard is a non- mandatory set for quality standards checking fifteen contaminants of water.
2. What is a benthic plant?

A benthic plant is one that lives around and sometimes inside its seabed.

List four benthic plants
They include Chlorophyta, phaeophyceae, seagrasses and cyanophyte.
Under what conditions do benthic plants thrive?
Sea ice is a very good condition for survival of benthic plants and this is because it provides nutrients and enough light. Melting ...

The Hanford nuclear waste facility is an important US environmental cleanup project which has made many steps towards its ultimate goal. However, leakage of the billions of liquid waste, which leak out of the tanks into the surrounding soil and water, pose serious environmental, social and health risks to the people and the environment, with the greatest concern being the wastes reaching the Columbia River, which could have an array of serious consequences. This write-up explores the facility, with regard to the environmental in/justice problems it poses, as well as the social and environmental risks associated with the nuclear ...

Introduction

Environmental pollution has over the past few decades been a subject matter of discussion among many states. The main reason behind this can be associated with the increasing rate of environmental degradation and the adverse effects that this reason can impose on the well-being of human existence (Zhao, 2010). The United Nations Environmental Program ( UNEP) has been holding annual general meetings where stakeholders from all over the world meet and discuss crucial factor and measures affecting the environment. It has become adequately clear that over the years crucial environmental factors have become the prime subjects of discussion globally right before ...

Pollution is the process of introduction of contaminants in the environment. These contaminants lead to a negative impact to the living things in the environment. The original condition of the environment is made harmful to the living things. Pollution can be of different forms. The main pollution forms are the air, water and soil pollution. The intent of this paper is to discuss the air and water pollution, elaborating on their causes or pollutants and description of their effects on living things. Specifically, the paper will discuss the air and water pollutants and their possible remedies. The air and water ...

The National Environmental Policy Act (NEPA)

NEPA was created due to the increased concern and appreciation about wildlife and ecological system during the 1969. It is an environmental law that sought to promote environmental care through the establishment of a national policy. The Act seeks to lay done specific environmental goals and policies (Bass, Bogdan & Bass 2001). Secondly it provided for the formation of implementation and enforcement for the provided policies through relevant federal agencies. Finally, the Act, provided for the creation of Council on Environmental Quality attached to the President’s Office. The CEQ role is to advise the President on national status on ...