Bioremediation

  • Plants and Healthy Indoor Air Featured Article Plants and Healthy Indoor Air Plants and Healthy Indoor Air

    Poor indoor air quality has been linked to health problems. This article, written by Dr. Luz Claudio*, appeared first in Environmental Health Perspectives—the... More »

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Pollution Last Updated on 2014-06-28 18:51:13 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 »
Plants and Healthy Indoor Air Last Updated on 2012-01-26 00:00:00 Poor indoor air quality has been linked to health problems. This article, written by Dr. Luz Claudio*, appeared first in Environmental Health Perspectives—the peer-reviewed, open access journal of the National Institute of Environmental Health Sciences. The article is a verbatim version of the original and is not available for edits or additions by Encyclopedia of Earth editors or authors. Companion articles on the same topic that are editable may exist within the Encyclopedia of Earth. Planting Healthier Indoor Air Poor indoor air quality has been linked to health problems, especially in children. Asthma has reached epidemic proportions among multiple age groups and is considered the most common chronic disease in urban-dwelling children.1 The American Academy of Allergy, Asthma and Immunology Indoor Allergen Committee suggested in a 2010 report that allergists... More »
Bioremediation Last Updated on 2011-01-12 00:00:00 Many methods are employed by public and private agencies to clean up pollution at Superfund and other sites. Some, like bioremediation, are considered new or innovative. Such methods can be quicker and cheaper than more common methods. If you live, work, or go to school near a Superfund site, you may want to learn more about cleanup methods. What is bioremediation? Bioremediation allows natural processes to clean up harmful chemicals in the environment. Microscopic “bugs” or microbes that live in soil and groundwater like to eat certain harmful chemicals, such as those found in gasoline and oil spills. When microbes completely digest these chemicals, they change them into water and harmless gases such as carbon dioxide. How does it work? In order for microbes to clean up... More »
National Priorities List Last Updated on 2008-08-21 19:47:05 The U.S. Environmental Protection Agency characterizes the National Priorities List (NPL) as a dynamic compilation of national priorities among the known releases or threatened releases of hazardous substances, pollutants, or contaminants throughout the United States and its territories.The NPL is intended primarily to guide the EPA in determining which sites warrant further investigation. From this web site, you can locate NPL sites, check their cleanup progress, and get information on new and proposed NPL sites.Sites are listed on the National Priorities List (NPL) upon completion of Hazard Ranking System (HRS) screening, public solicitation of comments about the proposed site, and after all comments have been addressed. More information about these steps in the process can be found here: ... More »
Lead in paint, dust, and soil Last Updated on 2008-01-22 19:07:52 Basic Information En Español[1] Facts about lead Did you know the following facts about lead? FACT: Lead exposure can harm young children and babies even before they are born. FACT: Even children who seem healthy can have high levels of lead in their bodies. FACT: You can get lead in your body by breathing or swallowing lead dust, or by eating soil or paint chips containing lead. FACT: You have many options for reducing lead hazards. In most cases, lead-based paint that is in good condition is not a hazard. FACT: Removing lead-based paint improperly can increase the danger to your family. If you think your home might have lead hazards, read on to learn about lead and some simple steps to protect your family. Health Effects of Lead *Childhood lead poisoning remains a major environmental health... More »