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Land Pollution.

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Introduction

Land Pollution - Introduction When we hear a person describe a place as 'dirty', what usually comes to our minds is the bad condition of the place. The place, which could be your bedroom, is imagined to have clothes scattered on the floor and books unarranged on the shelf. However, I define the word 'dirty' in a more specific manner. 'Dirty' in my definition, means that there are rubbish or litter on the floor. This makes the atmosphere of that certain place unpleasant not only to the eye, but also to the mind. Land pollution is therefore the dirtying of the land. It comes about due to inconsiderate dumping of waste, littering and ineffective waste disposal methods. Pesticides First of all pesticides are poisons. They are designed to kill pests (hence the name) but often the only reason it kills pests rather than larger animals is due to the strength of the dose. This is why farmers and others must use protective clothing, gloves and masks when handling these chemicals. Otherwise by the end of the day, especially if handling the concentrated pesticide before it is watered down and sprayed, they can take in harmful amounts of the pesticide and become ill, sometimes seriously ill for a long time. ...read more.

Middle

Genetic engineering will have an impact that we don't yet understand. Deforestation leads to: 1. The loss of animals, insects, birds, etc. that live in the forests. 2. Soil erosion. The tree roots hold the soil together. The soil will also quickly lose its fertility once the trees are removed. 3. Reduction in oxygen levels. Over one third of the world's oxygen supply comes from the trees of the rain forest. 4. The nutrient cycle is broken because there are no rotting leaves to fall from the trees. 5. Changes in climate. Without trees there will be a decrease in evapotranspiration and therefore of water vapour in the air. This will reduce rainfall and may mean that the Amazon basin turns into desert. 6. Greenhouse effect. As the trees are burnt, this releases carbon, thus contributing to the greenhouse effect and global warming. Recycling 1. Most of our rubbish goes into giant holes in the ground called landfill sites. One of the worst types of rubbish is babies nappies which do not rot down easily. It has been said that a nappy could outlive the baby. We are running out of room for this and that is why the government is so keen for us to recycle as much as possible . ...read more.

Conclusion

Measures for reducing or eliminating releases, or mitigating the impacts of releases are developed, and may include promotion of pollution prevention practices, or the implementation of codes of practice for toxic chemicals management and/or recommendations for regulation development. The Air & Toxics Issues Section has four major program areas: Inventories / Use Patterns: This program produces databases on toxic chemicals releases to air, water, and land through the National Pollutant Release Inventory, and industry self-reporting activity. Use patterns of commercial chemicals, including pesticides, are developed on an as needed basis. Air and Waste: This program is aimed at the reduction of environmental impacts resulting from sources of air pollutants, including combustion processes as well as the reduction of impacts from solid waste management at federal facilities. Toxic Chemicals: This program measures the environmental risks associated with priority toxic substances in the region as well as selected substances of national concern. Control strategies are developed for the highest risk substances. Pesticides: This program quantifies the environmental impacts from high risk pesticide use and develops mitigative measures for regional pesticide programs, primarily those at federal facilities. Composting In nature, organic wastes are broken down through a combination of biological and chemical processes. Biological agents like worms, insects, fungi, bacteria and other micro-organisms "chew up" the materials, which are further transformed by oxidation (exposure to air), reduction and hydrolysis (exposure to water). ...read more.

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