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Waste Management

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Recently Updated
Public Health Statement for Chlorophenols Last Updated on 2013-09-23 21:43:04 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. July 1999 CAS# 95-57-8 This Public Health Statement is the summary chapter from the Toxicological Profile for Chlorophenols. 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 chlorophenols and the effects of... More »
Pollution Last Updated on 2013-09-22 22:58:20 Pollution is environmental contamination that results in harm or death to living organisms. Most pollution is in the form of chemical additions to air, water or soil; however, in modern times starting in the mid-twentieth century noise and light have been considered as pollution sources. Most pollution is man-made, with natural fluctuations in atmospheric composition, surface water bodies and soil considered temporal gyrations in the Earth's natural history. The chief driver of pollution is the massive growth in human population, which induces the proximate causes of intensive agriculture and extraordinary industrial output. The United Nations and the Blacksmith Institute[1] are two prominent organisations that tabulate locales of the greatest pollution intensity; while their listings do not correspond precisely, the overlap countries that both entities agree are the worst polluted... More »
Public Health Statement for 2,4- and 2,6-Dinitrotoluene Last Updated on 2013-09-21 23:38:55 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. December 1998 En Español CAS# 2,4-Dinitrotoluene 121-14-2, 2,6-Dinitrotoluene 606-20-2 This Public Health Statement is the summary chapter from the Toxicological Profile for 2,4- and 2,6-Dinitrotoluene. 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 Asbestos Last Updated on 2013-09-21 23:15:25 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 2001 En Español CAS#: 1332-21-4 This Public Health Statement is the summary chapter from the Toxicological Profile for Asbestos. 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 asbestos and... More »
Fate and effects of perchlorate Last Updated on 2013-09-17 22:20:28 This article is the result of a collaborative effort between a student at Mount Holyoke College participating in the Encyclopedia of Earth's (EoE) Student Science Communication Project, and an expert on the topic. The project encourages students in undergraduate and graduate programs to write about timely scientific issues under close faculty guidance. This article has been reviewed by EoE editors. Perchlorates are both man-made and naturally-occurring salts. Five types of this chemical are manufactured or mined in the United States (U.S.) and in other countries—ammonium perchlorate being the most common. Perchlorates exist in the environment as solids and they separate into two ions in water. The negatively charged anion is measured when water or other liquids are tested for perchlorates.     Perchlorate modulates thyroid function as a competitive... More »