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Boil-water Advisory
A boil-water advisory, boil-water notice, boil-water warning, boil-water order, or boil order is a public-health advisory or directive issued by governmental or other health authorities to consumers when a community's drinking water is or could be contaminated by pathogens. Under a boil-water advisory (BWA), the Centers for Disease Control and Prevention recommends that water be brought to a rolling boil for one minute before it is consumed in order to kill protozoa, bacteria, and viruses. At altitudes above , boiling should be extended to 3 minutes, as the lower boiling point at high altitudes requires more time to kill such organisms. BWAs are typically issued when monitoring of water being served to consumers detects '' E. coli'' or other microbiological indicators of sewage contamination. Another reason for a BWA is a failure of distribution system integrity evidenced by a loss of system pressure. While loss of pressure does not necessarily mean the water has been contaminat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Health
Public health is "the science and art of preventing disease, prolonging life and promoting health through the organized efforts and informed choices of society, organizations, public and private, communities and individuals". Analyzing the determinants of health of a population and the threats it faces is the basis for public health. The ''public'' can be as small as a handful of people or as large as a village or an entire city; in the case of a pandemic it may encompass several continents. The concept of ''health'' takes into account physical, psychological, and social well-being.What is the WHO definition of health? from the Preamble to the Constitution of WHO as adopted by the International Health Conference, New York, 19 June - 22 July 1946; signed on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germ Theory Of Disease
The germ theory of disease is the currently accepted scientific theory for many diseases. It states that microorganisms known as pathogens or "germs" can lead to disease. These small organisms, too small to be seen without magnification, invade humans, other animals, and other living hosts. Their growth and reproduction within their hosts can cause disease. "Germ" refers to not just a bacterium but to any type of microorganism, such as protists or fungi, or even non-living pathogens that can cause disease, such as viruses, prions, or viroids. Diseases caused by pathogens are called infectious diseases. Even when a pathogen is the principal cause of a disease, environmental and hereditary factors often influence the severity of the disease, and whether a potential host individual becomes infected when exposed to the pathogen. Pathogens are disease-carrying agents that can pass from one individual to another, both in humans and animals. Infectious diseases are caused by biological a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drinking Water
Drinking water is water that is used in drink or food preparation; potable water is water that is safe to be used as drinking water. The amount of drinking water required to maintain good health varies, and depends on physical activity level, age, health-related issues, and environmental conditions. This 2004 article focuses on the USA context and uses data collected from the US military. Recent work showed that the most important driver of water turnover which is closely linked to water requirements is energy expenditure. For those who work in a hot climate, up to a day may be required. Typically in developed countries, tap water meets drinking water quality standards, even though only a small proportion is actually consumed or used in food preparation. Other typical uses for tap water include washing, toilets, and irrigation. Greywater may also be used for toilets or irrigation. Its use for irrigation however may be associated with risks. Water may also be unacceptable due to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Pollution
Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants are introduced into these water bodies. Water pollution can be attributed to one of four sources: sewage discharges, industrial activities, agricultural activities, and urban runoff including stormwater. It can be grouped into surface water pollution (either fresh water pollution or marine pollution) or groundwater pollution. For example, releasing inadequately treated wastewater into natural waters can lead to degradation of these aquatic ecosystems. Water pollution can also lead to water-borne diseases for people using polluted water for drinking, bathing, washing or irrigation. Water pollution reduces the ability of the body of water to provide the ecosystem services (such as drinking water) that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Supply
Water supply is the provision of water by public utilities, commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes. Public water supply systems are crucial to properly functioning societies. These systems are what supply drinking water to populations around the globe. Aspects of service quality include continuity of supply, water quality and water pressure. The institutional responsibility for water supply is arranged differently in different countries and regions (urban versus rural). It usually includes issues surrounding policy and regulation, service provision and standardization. The cost of supplying water consists, to a very large extent, of fixed costs (capital costs and personnel costs) and only to a small extent of variable costs that depend on the amount of water consumed (mainly energy and chemicals). Almost all service providers in the world charge tariffs to recover part of their costs. Water supply is a separate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walkerton E
Walkerton may refer to: *Walkerton, Ontario, a town in Canada ** The Walkerton Hawks, a Canadian ice hockey team ** The Walkerton Capitals, a Canadian ice hockey team ** The Walkerton E. coli outbreak, involving the contamination of the town water supply in 2000 *Walkerton, Indiana, a town in the state of Indiana in the United States *Walkerton, Virginia, a village in the state of Virginia in the United States **The Battle of Walkerton The Battle of Walkerton was an engagement of the American Civil War. It occurred March 2, 1864, in Walkerton, Virginia, Walkerton, King and Queen County, Virginia, King and Queen County, Virginia during the campaign known as the Kilpatrick-Dahl ..., which took place in Virginia during the American Civil War * Walkerton (Glen Allen, Virginia), a historic tavern building {{disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1998 Sydney Water Crisis
The 1998 Sydney water crisis involved the suspected contamination of the water supply system of Greater Metropolitan Sydney by the microscopic pathogens ''Cryptosporidium'' and '' Giardia'' between July and September 1998. Following routine water sampling and testing, over a series of weeks low level contaminants were found at Prospect, , Sydney Hospital, the NSW Art Gallery, Macquarie Street, Centennial Park, , , , and water treatment facilities at Warragamba, Nepean, , , Woronora, Macarthur, the Illawarra and Prospect. The reliability of these test results was subsequently called into doubt. Precautionary "boil water" alerts were raised covering several suburban areas for the period of the crisis. In response to the crisis, the Government of New South Wales established a Commission of Inquiry, chaired by jurist Peter McClellan as Commissioner. McClennan handed down his final report to the NSW Premier making ninety-one recommendations that led to the reorganisation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2010 Boston Water Emergency
The 2010 Boston water emergency occurred on May 1, 2010, when a water pipe in Weston, Massachusetts, broke and began flooding into the Charles River. This led to unsanitary water conditions in the greater Boston area, which resulted in Governor Deval Patrick declaring a state of emergency and an order for residents to boil drinking water. The leak was stopped on May 2. On May 4, the order was lifted. President Barack Obama signed an emergency disaster declaration offering federal help, authorizing the Department of Homeland Security and Federal Emergency Management Agency to coordinate disaster relief efforts with Massachusetts. MWRA executive director Frederick Laskey called the break "catastrophic" and "everyone's worst nightmare in the water industry". Chronology At about 10 am on May 1, a collar connecting two sections of pipe ruptured in Weston, Massachusetts, disrupting the connection between the MetroWest Water Supply Tunnel and the City Tunnel. With the water supply cut o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1863–1875 Cholera Pandemic
The fourth cholera pandemic of the 19th century began in the Ganges Delta of the Bengal region and traveled with Haj, Muslim pilgrims to Mecca. In its first year, the epidemic claimed 30,000 of 90,000 pilgrims. Cholera spread throughout the Middle East and was carried to the Russian Empire, Europe, Africa and North America, in each case spreading via travelers from port cities and along inland waterways. The pandemic reached Northern Africa in 1865 and spread to sub-Saharan Africa, killing 70,000 in Zanzibar in 1869–70. Cholera claimed 90,000 lives in Russia in 1866. The epidemic of cholera that spread with the Austro-Prussian War (1866) is estimated to have taken 165,000 lives in the Austrian Empire, including 30,000 each in Hungary and Belgium, and 20,000 in the Netherlands. In June 1866, a localized epidemic in the East End of London claimed 5,596 lives, just as the city was completing construction of London sewerage system, its major sewage and water treatment systems; the E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germ Theory
The germ theory of disease is the currently accepted scientific theory for many diseases. It states that microorganisms known as pathogens or "germs" can lead to disease. These small organisms, too small to be seen without magnification, invade humans, other animals, and other living hosts. Their growth and reproduction within their hosts can cause disease. "Germ" refers to not just a bacterium but to any type of microorganism, such as protists or fungi, or even non-living pathogens that can cause disease, such as viruses, prions, or viroids. Diseases caused by pathogens are called infectious diseases. Even when a pathogen is the principal cause of a disease, environmental and hereditary factors often influence the severity of the disease, and whether a potential host individual becomes infected when exposed to the pathogen. Pathogens are disease-carrying agents that can pass from one individual to another, both in humans and animals. Infectious diseases are caused by biological ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Internet Archive
The Internet Archive is an American digital library with the stated mission of "universal access to all knowledge". It provides free public access to collections of digitized materials, including websites, software applications/games, music, movies/videos, moving images, and millions of books. In addition to its archiving function, the Archive is an activist organization, advocating a free and open Internet. , the Internet Archive holds over 35 million books and texts, 8.5 million movies, videos and TV shows, 894 thousand software programs, 14 million audio files, 4.4 million images, 2.4 million TV clips, 241 thousand concerts, and over 734 billion web pages in the Wayback Machine. The Internet Archive allows the public to upload and download digital material to its data cluster, but the bulk of its data is collected automatically by its web crawlers, which work to preserve as much of the public web as possible. Its web archiving, web archive, the Wayback Machine, contains hu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riverhead Books
Riverhead Books is an imprint of Penguin Group (USA) founded in 1994 by Susan Petersen Kennedy. Writers published by Riverhead include Ali Sethi, Marlon James (novelist), Marlon James, Junot Díaz, George Saunders, Khaled Hosseini, Nick Hornby, Anne Lamott, Carlo Rovelli, Randall Munroe, Patricia Lockwood, Sarah Vowell, the 14th Dalai Lama, Dalai Lama, Chang-rae Lee, Meg Wolitzer, Dinaw Mengestu, Daniel Alarcón, Daniel H. Pink, Steven Johnson (author), Steven Johnson, Jon Ronson, Ellen Burstyn, Elizabeth Gilbert, James McBride (writer), James McBride, Jing Tsu and C Pam Zhang. Authors published by Riverhead won the Dayton Literary Peace Prize [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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