environmental toxins?
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We all genetically have different tolerance levels for one.  The genetic component of why people suffer from certain diseases comes into play when a person's tolerance level has been reached.  When you're taxed beyond your body's ability to tolerate toxic elements of your life, diseases start to appear.  Environmental factors and emotional and mental stress factors all need to be taken into account together.  When we're emotionally stressed our bodies produce things like cortisol and inflammation.  Inflammation is the root cause of most illness.  If you really want to delve into the subject, you might enjoy the book called Feelings Buried Alive Never Die.
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Suspected carcinogens.
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i don't know about toxins...but a lack of oxygen during a certain stage of cell respiration will lead to cell fermentation...
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http://www.epa.gov/iaq/pubs/sbs.html
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Try: http://www.envirolink.org
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mostly chlorine. I think a lot of the water fountains and tap water have chlorine in it to keep it safe. But some people are alergic to it, and it isnt the healthiest thing in the world. But it shouldnt do TOO much harm. In some other areas there might be a bit nastier chemicals like... mercury?\nhaha. But I think people boil the water first to kill any unwanted microsopic things that miught be livingn in there. But... I dont think having germies in water is that big of a problem in the U.S. eh. But i guess you can never be too safe.
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http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9577937&dopt=Citation\n\nhttp://www.newstarget.com/001061.html\n\nhttp://www.pesticideinfo.org/Detail_Chemical.jsp?Rec_Id=PC35590
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..viruses ..bacteria, bad water bad food
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Go to their homepage (www.epa.gov) and read their mission statement..Im sure you will find more than you ever wanted to know about environmental stuff there..
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Mercury is a heavy metal and is very harmful to the environment and the body.  It can cause nerve damage as well as damage to a fetus.  It can contaminate both soil and water.\n\nMercury is a liquid at room temp. so it can be absorbed through the skin.  The usual method of mercury poisoning is through eating contaminated foods. I've not heard of mercury gas poisoning, but, I wouldn't want to be near a chemical spill that involved mercury gas.
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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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The easiest way to find out the answer to that question is to look up the MSDS.  It gives all the information you need about it's toxicity, reactivity, etc.  A lot of chemical supply companies have MSDS on their websites, and I think there might be a government website that has MSDS accessible online, but I'm not sure.
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Google that and you will find as I did that there is a wealth of information on external environment analysis within health care!!!\n\nGood Luck!!!
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I just watched a news special recently on nbc re: freezing water bottles.\n\nI found this article that I copied and pasted.  But I have also read on other websites that it does not.\n\n"DIOXINS Carcinogens cause cancer. Especially breast cancer. Don't freeze your plastic water bottles with water as this also releases dioxins in the plastic. Dr. Edward Fujimoto from Castle Hospital was on a TV program explaining this health hazard. He is the manager of the Wellness Program at the hospital. He was talking about dioxins and how bad they are for us. He said that we should not be heating our food in the microwave using plastic containers. This applies to foods that contain fat. He said that the combination of fat, high heat and plastics releases dioxins into the food and ultimately into the cells of the body. Dioxins are carcinogens and highly toxic to the cells of our bodies.\n\nThen I found this article from John Hopkins that says it does not\n\n\nBALTIMORE -- Johns Hopkins researchers have responded to an e-mail warning against freezing water bottles. A recent e-mail hoax claims Hopkins scientists warned people that freezing plastic bottles releases dioxins into the water. But the researchers say that's entirely false -- they said freezing plastic water bottles will not expose people to dangerous chemicals.\n\nResults | Disclaimer \n \nAccording to Dr. Rolf Halden, of the Johns Hopkins Bloomberg School of Public Health, freezing actually works against the release of chemicals and scientists are not even sure plastics contain dioxins. \nHowever, Halden does warn that another group of chemicals that are used to make plastic less brittle can be released if you place them in hot water or heat them in the microwave.\n\nBut Halden stresses that people should not be afraid of drinking water and that "you are more likely to suffer from the adverse effects of dehydration than from the miniscule amounts of chemical contaminants present in your water supply."\n\nHe also said people should be more concerned about the quality of the water they drink more than the bottle from which they drink it. Although people tend to assume bottled water is the safest route, Halden said city water is much more highly regulated and monitored for quality.
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Depends on the toxin. Some are absorbed through the skin, others can be inhaled,or consumed
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Take your pick:\n\n1.What are the affects of pesticides on our rivers and streams?\n2.Explore two endangered species. \n3.Is global warming increasing the frequency of hurricanes?\n4.What are the affects of deforestation on the tropical rainforest?\n5.How does extinction affect a food web?\n6.How can forest fires be good for a forest ecosystem?\n7.What is ozone depletion and how can we protect the ozone layer?\n8.Explore how frogs can be biological indicators.\n9.Discuss the role of decomposers in a forest ecosystem. \n10.How does recycling help improve our environment? \n11.How can deer hunters improve a forest ecosystem? \n12.How does water runoff from pavement affect the surrounding environment?\n13.What impact have humans had on global climate? \n14.Why is it important to save our wetlands? \n15.What affect does acid rain have on the environment? \n16.What is smog and how can it be dangerous? \n17.Discuss the dangers of Radon.\n18.How can air pollutants damage the ozone? \n19.Discuss the disadvantages of being dependant on Middle East oil. \n20.Why are coral reefs important to an aquatic ecosystem? \n21.What are the positives and negatives of nuclear power? \n22.How can an oil spill destroy a marine ecosystem? \n23.What are emission checks and how do they help improve air quality? \n24.How does a water treatment plant clean our drinking water?\n25.What is the EPA and how does it work to improve our environment? \n26.Discuss ways that people can help endangered species. \n27.Discuss the dangers of asbestos. \n28.What are the risks of radiation? \n29.What are estuaries and why are they important? \n30.How can indoor air pollution cause health problems? \n31.What are the positives and negatives of landfills? \n32.What is a watershed and why are they important? \n33.What is the greenhouse effect and how does it influence climate? \n34.What affects can volcanoes have on global climate?\n35.How does El Nino affect global climate?\n36.What is the Georgia Wildlife Federation, and how do they protect wildlife?\n37.How was Lake Lanier built and what influences does it have on local ecology?\n38.Trace the path of the Chattahoochee River and explain its importance to Georgia’s ecosystem. \n39.How can advances in the medical field increase human carrying capacity?\n40.What is biodiversity and what role does it play in a tropical rainforest?\n41.How will human population affect food production in the future? \n42.Propose an argument on why the government should drill for oil in Alaska. \n43.Propose an argument on why the government should not drill for oil in Alaska. \n44.What are some advantages in using solar power, wind power and hydro-electric power? \n45.How does over-consumption relate to our available resources?\n46.What does ‘Renewable Resource’ mean, and how does it relate to over-consumption? \n47.What are the pros and cons of genetic engineering?\n48.What is sprawl and how does it relate to the environment?\n49.Discuss how ocean temperatures influence the strength of hurricanes. \n50.Discuss how a meteor could impact our environment.
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These are some of environmental hazards that I can think of:\n>>Changed quality of animal habitat caused by pollution or any interference which is unsafe or unhealthy for animals to live.\n>>Forestfires.\n>>Increased predation by another species.\n>>Diminishing water and food supply resources.\n>>A disease epidemic in a certain animal habitat.♥\n>>