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Environmental Health

Environmental health is concerned with how both the natural and built environment affect human health by looking at the impact of physical, chemical and biological factors external to humans.  Those working in Environmental health fields are concerned with preventing diseases or other illnesses by assessing and controlling environmental factors that pose a threat to human health whether it involves air quality, natural disasters, radiation, water quality, UV exposure, indoor air pollutants, climate change, healthy communities and work environments, or the effects of toxic substances. Environmental health can also refer to ecosystem status or function. Chemicals, diseases, and invasive species threaten to alter wildlife and plant populations, which in turn may impact ecosystem function. Maintaining health, whether ecosystem or human arguably presents one of the greatest challenges of the day, in general maintaining optimal ecosystem function is essential for continued survival of all species including humans.

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Carbon monoxide Last Updated on 2014-01-16 09:44:12 Carbon monoxide (CO), also referred to as carbonous oxide, is a colorless, odorless, and tasteless gas that is slightly lighter than air. Exposure to high levels of carbon monoxide is extremely toxic to humans and animals.  Conversely, small amounts of carbon monoxide are produced in normal animal metabolism and it is thought to have some normal biological functions. Carbon monoxide consists of one carbon atom and one oxygen atom. It is the simplest member of the class of inorganic compounds known as oxocarbons which includes carbon dioxide (CO2), carbon suboxide (C3O2), mellitic anhydride (C12O9) and many others. When combined with a metal (i.e. an organometallic complex), the carbon monoxide is a ligand called carbonyl: for example, in nickel carbonyl with the formula Ni(CO)4. Carbon monoxide is produced by the partial combustion of carbon-containing substances. It is produced... More »
Accidental release source terms Last Updated on 2013-12-18 14:53:28 Accidental release source terms are the mathematical equations that quantify the flow rate at which accidental releases of air pollutants into the ambient environment can occur at industrial facilities such as petroleum refineries, natural gas processing plants, petrochemical and chemical plants, oil and gas transportation pipelines, and many other industrial facilities. Accidental releases in such facilities may occur through acts of nature (e.g., floods, hurricanes or earthquakes), operational errors, faulty design or inadequate  maintenance. Governmental regulations in a many countries require that the probability of such accidental releases be analyzed and their quantitative impact upon the environment and human health be determined so that mitigating steps can be planned and implemented. There are a number of mathematical calculation methods for determining the flow rate... More »
Public Health Statement for Ethion Last Updated on 2013-10-22 00:08:23 This article is a verbatim version of the original and is not available for edits or additions by EoE editors or authors. Companion articles on the same topic that are editable may exist within the EoE. September 2000 En Español CAS#: 563-12-2 This Public Health Statement is the summary chapter from the Toxicological Profile for Ethion. It is one in a series of Public Health Statements about hazardous substances and their health effects. A shorter version, the ToxFAQs™, is also available. This information is important because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. For more information, call the ATSDR Information Center at 1-888-422-8737. This public health statement tells you about ethion and the... More »
Public Health Statement for 2-Butoxyethanol and 2-Butoxyethanol Acetate Last Updated on 2013-10-03 21:55:16 This article is a verbatim version of the original and is not available for edits or additions by EoE editors or authors. Companion articles on the same topic that are editable may exist within the EoE. August 1998 CAS# 2-Butoxyethanol 111-76-2 2-Butoxyethanol Acetate 112-07-2 This Public Health Statement is the summary chapter from the Toxicological Profile for 2-butoxyethanol and 2-butoxyethanol acetate. It is one in a series of Public Health Statements about hazardous substances and their health effects. A shorter version, the ToxFAQs™, is also available. This information is important because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. For more information, call the ATSDR Information Center at... More »
Public Health Statement for Dichloropropenes Last Updated on 2013-10-03 21:52:19 This article is a verbatim version of the original and is not available for edits or additions by EoE editors or authors. Companion articles on the same topic that are editable may exist within the EoE. September 2006 Draft for Public Comment En Español CAS#: 542-75-6 This Public Health Statement is the summary chapter from the Toxicological profile for Dichloropropenes.It is one in a series of Public Health Statements about hazardous substances and their health effects. A shorter version, the ToxFAQs™, is also available. This information is important because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. For more information, call the ATSDR Information Center at 1-888-422-8737. This public health statement... More »