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Michael Dourson
Michael L. Dourson is an American toxicologist and Director of Science at the nonprofit organization, Toxicology Excellence for Risk Assessment. He was formerly a senior advisor to the Administrator of EPA, and prior to that, a professor at the Risk Science Center at the University of Cincinnati College of Medicine. Prior to joining the University of Cincinnati, he was founder and president of the nonprofit Toxicology Excellence for Risk Assessment. Earlier in his career, he was employed by the Environmental Protection Agency Environmental Criteria and Assessment Office, among other assignments. In July 2017, Dourson was nominated by President Donald Trump to become Assistant Administrator of the Environmental Protection Agency, Office of Chemical Safety and Pollution Prevention. The United States Senate Committee on Environment and Public Works voted to advance his nomination on October 25, 2017. Dourson withdrew his nomination on December 13, 2017. Career Dourson is board- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cincinnati
Cincinnati ( ) is a city in the U.S. state of Ohio and the county seat of Hamilton County. Settled in 1788, the city is located at the northern side of the confluence of the Licking and Ohio rivers, the latter of which marks the state line with Kentucky. The city is the economic and cultural hub of the Cincinnati metropolitan area. With an estimated population of 2,256,884, it is Ohio's largest metropolitan area and the nation's 30th-largest, and with a city population of 309,317, Cincinnati is the third-largest city in Ohio and 64th in the United States. Throughout much of the 19th century, it was among the top 10 U.S. cities by population, surpassed only by New Orleans and the older, established settlements of the United States eastern seaboard, as well as being the sixth-most populous city from 1840 until 1860. As a rivertown crossroads at the junction of the North, South, East, and West, Cincinnati developed with fewer immigrants and less influence from Europe than Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diacetyl
Diacetyl (IUPAC systematic name: butanedione or butane-2,3-dione) is an organic compound with the chemical formula (CH3CO)2. It is a yellow liquid with an intensely buttery flavor. It is a vicinal diketone (two C=O groups, side-by-side). Diacetyl occurs naturally in alcoholic beverages and is added as a flavoring to some foods to impart its buttery flavor. Chemical structure A distinctive feature of diacetyl (and other vicinal diketones) is the long C–C bond linking the carbonyl centers. This bond distance is about 1.54 Å, compared to 1.45 Å for the corresponding C–C bond in 1,3-butadiene. The elongation is attributed to repulsion between the polarized carbonyl carbon centers. Occurrence and biosynthesis Diacetyl arises naturally as a byproduct of fermentation. In some fermentative bacteria, it is formed via the thiamine pyrophosphate-mediated condensation of pyruvate and acetyl CoA. Sour (cultured) cream, cultured buttermilk, and cultured butter are produced by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standing Rules Of The United States Senate, Rule XXXI
31 may refer to: * 31 (number) Years * 31 BC * AD 31 * 1931 CE ('31) * 2031 CE ('31) Music * Thirty One (Jana Kramer album), ''Thirty One'' (Jana Kramer album), 2015 * Thirty One (Jarryd James album), ''Thirty One'' (Jarryd James album), 2015 * "Thirty One", a song by Karma to Burn from the album ''Wild, Wonderful Purgatory'', 1999 Film and television * 31 (film), ''31'' (film), a 2016 horror film * 31 (Kazakhstan), a television channel * 31 Digital, an Australian video on demand service, and before 2017 an Australian community television channel from Brisbane, Queensland. Other uses * Thirty-one (card game) See also * * * * * Channel 31 (other) * Highway 31 (other) * Section 31 (other) * List of highways numbered 31 {{Numberdis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Environmental Protection Agency
The Environmental Protection Agency (EPA) is an independent executive agency of the United States federal government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on December 2, 1970, after Nixon signed an executive order. The order establishing the EPA was ratified by committee hearings in the House and Senate. The agency is led by its administrator, who is appointed by the president and approved by the Senate. The current administrator is Michael S. Regan. The EPA is not a Cabinet department, but the administrator is normally given cabinet rank. The EPA has its headquarters in Washington, D.C., regional offices for each of the agency's ten regions and 27 laboratories. The agency conducts environmental assessment, research, and education. It has the responsibility of maintaining and enforcing national standards under a variety of environmental laws, in consultation with state, tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Chemistry Council
American Chemistry Council (ACC), formerly known as the Manufacturing Chemists' Association (at its founding in 1872) and then as the Chemical Manufacturers' Association (from 1978 until 2000), is an industry trade association for American chemical companies, based in Washington, D.C. Activities The mission of the American Chemistry Council is to promote the interests of corporations of the chemical industry. The trade group represents US chemical companies as well as the plastics and chlorine industries, formerly known as the American Plastics Council, the Center for the Polyurethanes Industry and the Chlorine Chemistry Council. ACC implemented the Responsible Care program in 1988. At least 52 countries have implemented this initiative. It is managed at a global level by the International Council of Chemical Associations. ACC has a political action committee that gives money to members of the Congress of the United States. ACC launched a $35 million "essential2" public relati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lubeck, West Virginia
Lubeck is a census-designated place (CDP) in Wood County, West Virginia, United States. It is part of the Parkersburg-Marietta-Vienna, WV- OH Metropolitan Statistical Area. The population was 1,311 at the 2010 census. Though first named Watertown, postmaster Theodore Frederick Henry Slevogt in 1856 changed the name to Lubeck after his hometown in Germany. Geography Lubeck is located at (39.232846, -81.639491). According to the United States Census Bureau, the CDP has a total area of 4.3 square miles (11.0 km2), all land. Demographics At the 2000 census, there were 1,303 people, 510 households and 403 families living in the CDP. The population density was 305.0 per square mile (117.8/km2). There were 540 housing units at an average density of 126.4/sq mi (48.8/km2). The racial makeup of the CDP was 98.70% White, 0.46% African American, 0.08% Native American, 0.08% Asian, 0.08% from other races, and 0.61% from two or more races. Hispanic or Latino of any race w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DuPont
DuPont de Nemours, Inc., commonly shortened to DuPont, is an American multinational chemical company first formed in 1802 by French-American chemist and industrialist Éleuthère Irénée du Pont de Nemours. The company played a major role in the development of Delaware and first arose as a major supplier of gunpowder. DuPont developed many polymers such as Vespel, neoprene, nylon, Corian, Teflon, Mylar, Kapton, Kevlar, Zemdrain, M5 fiber, Nomex, Tyvek, Sorona, Corfam and Lycra in the 20th century, and its scientists developed many chemicals, most notably Freon (chlorofluorocarbons), for the refrigerant industry. It also developed synthetic pigments and paints including ChromaFlair. In 2015, DuPont and the Dow Chemical Company agreed to a reorganization plan in which the two companies would merge and split into three. As a merged entity, DuPont simultaneously acquired Dow and renamed itself to DowDuPont on August 31, 2017, and after 18 months spin off the merged entity' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtually Safe Dose
A virtually safe dose (VSD) may be determined for those carcinogen A carcinogen is any substance, radionuclide, or radiation that promotes carcinogenesis (the formation of cancer). This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes. Several radioactive substan ...s not assumed to have a threshold. Virtually safe doses are calculated by regulatory agencies to represent the level of exposure to such carcinogenic agents at which an excess of cancers greater than that level accepted by society is not expected.Derelanko, M.J. and Hollinger, M.A. (Eds). CRC Handbook of Toxicology. 1995. CRC Press. Boca Raton, FL. See also * Dose-response relationship * Linear no-threshold model References Toxicology {{med-toxic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recommended Exposure Limit
A recommended exposure limit (REL) is an occupational exposure limit that has been recommended by the United States National Institute for Occupational Safety and Health. The REL is a level that NIOSH believes would be protective of worker safety and health over a working lifetime if used in combination with engineering and work practice controls, exposure and medical monitoring, posting and labeling of hazards, worker training and personal protective equipment. To formulate these recommendations, NIOSH evaluates all known and available medical, biological, engineering, chemical, trade, and other information. Although not legally enforceable limits, RELS are transmitted to the Occupational Safety and Health Administration (OSHA) or the Mine Safety and Health Administration (MSHA) of the U.S. Department of Labor The United States Department of Labor (DOL) is one of the United States federal executive departments, executive departments of the federal government of the United State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safe Drinking Water Act
The Safe Drinking Water Act (SDWA) is the principal federal law in the United States intended to ensure safe drinking water for the public. Pursuant to the act, the Environmental Protection Agency (EPA) is required to set standards for drinking water quality and oversee all states, localities, and water suppliers that implement the standards. The SDWA applies to every public water system (PWS) in the United States. There are currently over 148,000 public water systems providing water to almost all Americans at some time in their lives. The Act does not cover private wells (in 2020, 13% of US households were served by private wells). The SDWA does not apply to bottled water. Bottled water is regulated by the Food and Drug Administration (FDA), under the Federal Food, Drug, and Cosmetic Act. National Primary Drinking Water Regulations The SDWA requires EPA to establish ''National Primary Drinking Water Regulations'' (NPDWRs) for contaminants that may cause adverse public h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occupational Exposure Limit
An occupational exposure limit is an upper limit on the acceptable concentration of a hazardous substance in workplace air for a particular material or class of materials. It is typically set by competent national authorities and enforced by legislation to protect occupational safety and health. It is an important tool in risk assessment and in the management of activities involving handling of dangerous substances. There are many dangerous substances for which there are no formal occupational exposure limits. In these cases, hazard banding or control banding strategies can be used to ensure safe handling. Background Occupational Exposure Limits (OELs) have been established for airborne workplace chemicals by multiple regulatory and authoritative organizations around the world for well over 60 years now. With the changing regulatory arena, shifting centers of manufacturing growth, and the move towards a more global view on occupational hygiene issues, it is important for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
