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Causes And Effects Of Soil Pollution In Points Pdf

causes and effects of soil pollution in points pdf

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Soil contamination refers to the destruction of land that could be used constructively by human activities, either directly or indirectly. Presently, , ha of UK land is thought to be contaminated by toxic elements such as lead and arsenic. The same goes for the other industrialized nations which are the worst hit.

Soil Contamination: Its Causes, Effects, and Solutions

In the case of contaminants which occur naturally in soil, even when their levels are not high enough to pose a risk, soil pollution is still said to occur if the levels of the contaminants in soil exceed the levels that should naturally be present. All soils, whether polluted or unpolluted, contain a variety of compounds contaminants which are naturally present.

Such contaminants include metals, inorganic ions and salts e. These compounds are mainly formed through soil microbial activity and decomposition of organisms e. Additionally, various compounds get into the soil from the atmosphere, for instance with precipitation water, as well as by wind activity or other types of soil disturbances, and from surface water bodies and shallow groundwater flowing through the soil. When the amounts of soil contaminants exceed natural levels what is naturally present in various soils , pollution is generated.

There are two main causes through which soil pollution is generated : anthropogenic man-made causes and natural causes. Natural processes can lead to an accumulation of toxic chemicals in the soil. This type of contamination has only been recorded in a few cases, such as the accumulation of higher levels of perchlorate in soil from the Atacama Desert in Chile, a type of accumulation which is purely due to natural processes in arid environments.

They can pollute the soil either alone or combined with several natural soil contaminants. Man-made soil pollution is usually caused by the improper disposal of waste coming from industrial or urban sources, industrial activities, and agricultural pesticides. Soil pollution consists of pollutants and contaminants. The main pollutants of the soil are the biological agents and some of the human activities. Soil contaminants are all products of soil pollutants that contaminate the soil.

Human activities that pollute the soil range from agricultural practices that infest the crops with pesticide chemicals to urban or industrial wastes or radioactive emissions that contaminate the soil with various toxic substances. Biological agents work inside the soil to introduce manures and digested sludge coming from the human, bird and animal excreta into the soil.

The soil of the crops is polluted to a large extent with pesticides, fertilizers, herbicides, slurry, debris, and manure. Radioactive substances such as Radium, Thorium, Uranium, Nitrogen, etc. Urban waste consists of garbage and rubbish materials, dried sludge and sewage from domestic and commercial waste. Steel, pesticides, textiles, drugs, glass, cement, petroleum, etc.

Examples of the most common and problematic soil pollutants can be found below. Potential sources: lead paint, mining, foundry activities, vehicle exhaust, construction activities, agriculture activities. Potential sources: mining, coal-fired power plants, lumber facilities, electronics industry, foundry activities, agriculture, natural accumulation.

Soil pollution affects plants, animals and humans alike. While anyone is susceptible to soil pollution, soil pollution effects may vary based on age, general health status and other factors, such as the type of pollutant or contaminant inhaled or ingested.

However, children are usually more susceptible to exposure to contaminants, because they come in close contact with the soil by playing in the ground; combined with lower thresholds for disease, this triggers higher risks than for adults.

Therefore, it is always important to test the soil before allowing your kids to play there, especially if you live in a highly industrialized area. Humans can be affected by soil pollution through the inhalation of gases emitted from soils moving upward, or through the inhalation of matter that is disturbed and transported by the wind because of the various human activities on the ground.

Soil pollution may cause a variety of health problems , starting with headaches, nausea, fatigue, skin rash, eye irritation and potentially resulting in more serious conditions like neuromuscular blockage, kidney and liver damage and various forms of cancer.

Soil acts as a natural sink for contaminants, by accumulating and sometimes concentrating contaminants which end up in soil from various sources. Tiny amounts of contaminants accumulate in the soil and - depending on the environmental conditions including soil types and the degradability of the released contaminant - can reach high levels and pollute the soil. If the soil is contaminated, home-grown vegetables and fruits may become polluted too.

This happens because most of the soil pollutants present in the soil are extracted by the plants along with water every time they feed. Thus, it is always prudent to test the soil before starting to grow anything edible. This is especially important if your garden is located near an industrial or mining area, or within 1 mile of a main airport, harbor, landfill, or foundry.

March 30, Read by users. April 13, Read by users. April 14, Read by users. Natural Pollutants Natural processes can lead to an accumulation of toxic chemicals in the soil.

Types of Soil Pollutants Soil pollution consists of pollutants and contaminants. Biological Agents Biological agents work inside the soil to introduce manures and digested sludge coming from the human, bird and animal excreta into the soil. Agricultural Practices The soil of the crops is polluted to a large extent with pesticides, fertilizers, herbicides, slurry, debris, and manure. Urban Waste Urban waste consists of garbage and rubbish materials, dried sludge and sewage from domestic and commercial waste.

Industrial Waste Steel, pesticides, textiles, drugs, glass, cement, petroleum, etc. Lead Pb Potential sources: lead paint, mining, foundry activities, vehicle exhaust, construction activities, agriculture activities Read more. Arsenic As Potential sources: mining, coal-fired power plants, lumber facilities, electronics industry, foundry activities, agriculture, natural accumulation Read more. Copper Cu Potential sources: mining, foundry activities; construction activities Read more. Zinc Zn Potential sources: mining; foundry activities; construction activities Read more.

Nickel Ni Potential sources: mining; foundry activities; construction activities Read more. The Effects of Soil Pollution Soil pollution affects plants, animals and humans alike. Diseases Caused by Soil Pollution Humans can be affected by soil pollution through the inhalation of gases emitted from soils moving upward, or through the inhalation of matter that is disturbed and transported by the wind because of the various human activities on the ground.

Soil Pollution Facts Soil acts as a natural sink for contaminants, by accumulating and sometimes concentrating contaminants which end up in soil from various sources.

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In the case of contaminants which occur naturally in soil, even when their levels are not high enough to pose a risk, soil pollution is still said to occur if the levels of the contaminants in soil exceed the levels that should naturally be present. All soils, whether polluted or unpolluted, contain a variety of compounds contaminants which are naturally present. Such contaminants include metals, inorganic ions and salts e. These compounds are mainly formed through soil microbial activity and decomposition of organisms e. Additionally, various compounds get into the soil from the atmosphere, for instance with precipitation water, as well as by wind activity or other types of soil disturbances, and from surface water bodies and shallow groundwater flowing through the soil.

We tend to look skywards when talking about pollution, but this problem is not confined to our skies. The soil in which our fruit and vegetables grow is also suffering its consequences, the effects of which getting to us directly, for instance, through the aforementioned foodstuffs. The time has come to look after what lies under our feet! Soil pollution is mostly caused by chemical substances produced by human activity. The soil is the skin of the earth, a mantle full of scars, thousand-year-old wrinkles and more recent injuries caused both by man and nature itself. Some of these ulcers are incurable — such as the extinction of species —, whereas others jeopardise health and food security, all of which threaten the well-being of the world's 3.

Soil contamination or soil pollution as part of land degradation is caused by the presence of xenobiotics human-made chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons , polynuclear aromatic hydrocarbons such as naphthalene and benzo a pyrene , solvents , pesticides, lead , and other heavy metals. Contamination is correlated with the degree of industrialization and intensity of chemical substance. The concern over soil contamination stems primarily from health risks, from direct contact with the contaminated soil, vapours from the contaminants, or from secondary contamination of water supplies within and underlying the soil. In North America and Western Europe the extent of contaminated land is best known, with many of countries in these areas having a legal framework to identify and deal with this environmental problem. Developing countries tend to be less tightly regulated despite some of them having undergone significant industrialization.


Reduction in soil fertility. •. Loss of the natural nutrients of the. soil.


What is Soil Pollution?

Metrics details. A mounting body of the literature suggests that environmental chemicals found in food and water could affect female reproduction. The potential impact of Bisphenol A BPA , Phthalates and Perfluoroalkyl substances PFAS on female reproduction, in particular on puberty, PCOS pathogenesis, infertility, ovarian function, endometriosis, and recurrent pregnancy loss, in both humans and animals, will be discussed in this report in order to provide greater clinician and public awareness about the potential consequences of these chemicals.

Skip to content Ontario. Explore Government. PDF Version - 2. As part of providing accessible customer service , please email the Agricultural Information Contact Centre ag. Soil erosion is a naturally occurring process that affects all landforms.

When many of us think of pollution, images of smoggy cities and litter-infested oceans come to mind. While littering and gasoline-fueled cars are a major contributor to pollution, there are many other influences that are important to be aware of. Essentially, pollution occurs when substances are introduced to the environment that have harmful effects, damaging the quality of land, water, and air.

Study Session 7 Pollution: Types, Sources and Characteristics

With the rise of concrete buildings and roads, one part of the Earth that we rarely see is the soil. It has many different names, such as dirt, mud, and ground. However, it is definitely very important to us. The plants that feed us grow in soil, and keeping it healthy is essential to maintaining a beautiful planet. However, like all other forms of nature, soil also suffers from pollution.

In this special issue we have invited authors who are scientists and engineers to contribute original research as well as review articles on recent advances made on techniques and methodologies for the soil pollution prevention and remediation. This journal is in the field of soil science and reflects its multidisciplinary nature including treatments for soil treatment and reclamation. Soil pollution probably represents the most faced problem in environmental pollution. This is because soil is a point of concentration and recovery of toxic compounds, chemicals, salts, radioactive materials, or disease causing agents, which have adverse effects on plant growth and animal health.

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2 Comments

  1. Max B.

    24.05.2021 at 15:13
    Reply

    You were introduced to wastes and pollutants in Study Session 1, where we discussed the interactions between humans and our environment.

  2. Ella P.

    29.05.2021 at 02:41
    Reply

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