what substance that contaminates any part of the enviroment?
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Mercury. It gets into everything, from the soil, to the ground water, to...everywhere.
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ozone\n\nREAD THE PACKAGE
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propane\nbutane\nhydrogen\nmethane\nacetylene\nmethyl chloride\nnickel carbonyl\nhydrogen sulfide\n\n\nhundred of others
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oil, coal, natural gas.\n\nancient plant matter.\n\nIt depends on how old the human is. An adult has 206.\n\nIt isn't. But it might be just as bad, depends on the chemical and the duration and level of exposure.\n\nHuman Immuno-deficiency Virus.
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None!\n\nAtmosphere is made up of Nitrogen (78%), Oxygen (21%),Argon (0.9%) and other gasses e.g Carbon dioxide, Methane, Rare (inert) gases (0.1%)
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Litter.\n\nI know it is probably not as dangerous to our health as Air Water or Noise but it is such a simple thing for people to take control of.\n\nDrives me nuts to see someone just toss there garbage out the car window or to the gutter when they are walking. \n\nPigs.
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Environment pollution is pollution of water, air, soil, noise, light , visual and radio active .\n\n Pollution is the release of chemical, physical, biological or radioactive contaminants to the environment. Principal forms of pollution include: air , water....\nAir pollution is a broad term applied to any chemical, physical (e.g. particulate matter), or biological agent that modifies the natural characteristics of the atmosphere. The atmosphere is a complex, dynamic natural system that is essential to support life on planet earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the earth's ecosystems.\n\nWorldwide air pollution is responsible for large numbers of deaths and cases of respiratory disease. Setting of air quality standards, such as the U.S. Clean Air Act, has begun to improve air quality for some pollutants. While major stationary sources are often identified with air pollution, the greatest source of emissions are actually mobile sources, principally the automobile. There are many available air pollution control technologies and urban planning strategies available to reduce air pollution; however, worldwide costs of addressing this issue are high. The most immediately available method of improving air quality is adoption of greater use of ethanol fuel (and other bio fuels) and increased reliance upon hybrid vehicle technology.\n\nYou can check out more your self.\nAir pollution :
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Control of substances hazardous to health
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Its not.  What you see on top of water is hydrocarbon polution.  most really deadly polutants such as hexa valent chromium deposit in the river bed or lake floor and continue to contaminate the water for several years.
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INTRODUCTION\nPollution, contamination of Earth’s environment with materials that interfere with human health, the quality of life, or the natural functioning of ecosystems (living organisms and their physical surroundings). Although some environmental pollution is a result of natural causes such as volcanic eruptions, most is caused by human activities.\n\nThere are two main categories of polluting materials, or pollutants. Biodegradable pollutants are materials, such as sewage, that rapidly decompose by natural processes. These pollutants become a problem when added to the environment faster than they can decompose (see Sewage Disposal). Nondegradable pollutants are materials that either do not decompose or decompose slowly in the natural environment. Once contamination occurs, it is difficult or impossible to remove these pollutants from the environment. \n\nNondegradable compounds such as dichlorodiphenyltrichloroethane (DDT), dioxins, polychlorinated biphenyls (PCBs), and radioactive materials can reach dangerous levels of accumulation as they are passed up the food chain into the bodies of progressively larger animals. For example, molecules of toxic compounds may collect on the surface of aquatic plants without doing much damage to the plants. A small fish that grazes on these plants accumulates a high concentration of the toxin. Larger fish or other carnivores that eat the small fish will accumulate even greater, and possibly life-threatening, concentrations of the compound. This process is known as bioaccumulation.\n\nTYPES OF POLLUTION\nPollution exists in many forms and affects many different aspects of Earth’s environment. Point-source pollution comes from specific, localized, and identifiable sources, such as sewage pipelines or industrial smokestacks. Nonpoint-source pollution comes from dispersed or uncontained sources, such as contaminated water runoff from urban areas or automobile emissions.\n\nThe effects of these pollutants may be immediate or delayed. Primary effects of pollution occur immediately after contamination occurs, such as the death of marine plants and wildlife after an oil spill at sea. Secondary effects may be delayed or may persist in the environment into the future, perhaps going unnoticed for many years. DDT, a nondegradable compound, seldom poisons birds immediately, but gradually accumulates in their bodies. Birds with high concentrations of this pesticide lay thin-shelled eggs that fail to hatch or produce deformed offspring. These secondary effects, publicized by Rachel Carson in her 1962 book, Silent Spring, threatened the survival of species such as the bald eagle and peregrine falcon, and aroused public concern over the hidden effects of nondegradable chemical compounds.\n\nA  Air Pollution \nHuman contamination of Earth’s atmosphere can take many forms and has existed since humans first began to use fire for agriculture, heating, and cooking. During the Industrial Revolution of the 18th and 19th centuries, however, air pollution became a major problem. As early as 1661 British author and founding member of the British Royal Society John Evelyn reported of London in his treatise Fumifugium, “… the weary Traveller, at many Miles distance, sooner smells, than sees the City to which he repairs. This is that pernicious Smoake which fullyes all her Glory, superinducing a sooty Crust or Furr upon all that it lights.…”\n\nUrban air pollution is commonly known as smog. The dark London smog that Evelyn wrote of is generally a smoky mixture of carbon monoxide and organic compounds from incomplete combustion (burning) of fossil fuels such as coal, and sulfur dioxide from impurities in the fuels. As the smog ages and reacts with oxygen, organic and sulfuric acids condense as droplets, increasing the haze. Smog developed into a major health hazard by the 20th century. In 1948, 19 people died and thousands were sickened by smog in the small U.S. steel-mill town of Donora, Pennsylvani
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It's probably ethyl chloride. See link below for more info.
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D. spillting of water\n\n100%
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aquifers, undergound streams, etc. anything under ground
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Have you tested the levels of pollutants that bus or car is putting out?  How about the water you drink?  Or the mountains of waste produced by the office you work at?  How far away do you live from a chemical factory? Or a nuke plant?  Where is all the garbage going that you and your family produce?  How about the food colorings and additives?\n\nAnd you're worried about some cigarette smoke?\n\n\nPULLLLLEEEEEEEEESSSSSSSEE!!\n\nPeace.
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any oxidative substance (potassium permanganate), ultraviolet rays, sun, air, hydrogen peroxide, etc
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probably carbon dioxide mostly
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Pollution is:\n\n1. Undesirable state of the natural environment being contaminated with harmful substances as a consequence of human activities.\n2. Undesirable change in the physical, chemical, or biological characteristics of the air, water, or land that can harmfully affect the health, survival, or activities of human or other living organisms.\n3. Unwanted chemicals or other materials found in the air. Pollutants can harm health, the environment and property. Many air pollutants occur as gases or vapors, but some are very tiny solid particles: dust, smoke or soot.\n4. Any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or cause a health hazard. The usefulness of the natural resource is usually impaired by the presence of pollutants and contaminants.\n5. Harm to a natural environment, such as air, water, or soil through contamination with either natural or human-made materials. Such contamination may be deliberate, accidental, direct, or indirect. Throwing garbage into the lake, for example, makes the water unhealthy for fish and unfit for humans to swim. Indirect pollutants can enter our water supply from groundwater and runoff that contain agricultural fertilizers and pesticides or improperly disposed of industrial waste.\n6. Pollution which is (1) induced by natural processes, including precipitation, seepage, percolation, and runoff; (2) not traceable to any discrete or identifiable facility; and (3) controllable through the utilization of wise management practices.\n7. The undesirable presence of matter or energy that can cause harmful environmental effects.