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SCAQMD
The South Coast Air Quality Management District, also using the acronym South Coast (AQMD), formed in 1976, is the air pollution agency responsible for regulating stationary sources of air pollution in the South Coast Air Basin and the Coachella Valley portion of the Salton Sea Air Basin, in Southern California. The separate California Air Resources Board is responsible for regulating mobile sources (e.g. vehicles) in the air basin. Basin geography The South Coast AQMD includes all of Orange County; and the non-desert regions of Los Angeles County, San Bernardino County, and Riverside County including the Coachella Valley. The South Coast Air Basin area encompassed by the South Coast AQMD amounts to about 10,750 square miles (27,850 square kilometres) and is the second most populated area in the United States. This area has a severe problem with smog, and the South Coast AQMD has been a leader in the nation's efforts to reduce air pollution emissions. The main office is locate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Coast Air Basin
The South Coast Air Basin—SCAB (or SoCAB) is one of several regional air basin areas designated by the state of California, for the purpose of air quality management and air pollution control in Southern California. The SCAB district was created in 1969. and includes all of Orange County and the non-desert regions of Los Angeles County, Riverside County, and San Bernardino County. The region covers approximately 17100 km2 and includes much of the Greater Los Angeles Area, which is home to approximately 18 million people. South Coast Air Quality Management District—AQMD Initially, the SCAB had four air-quality management agencies, one for each of the four counties. In 1977, the legislature merged these four agencies into the South Coast Air Quality Management District—South Coast AQMD. The SCAB is the smoggiest region of the U.S., and the South Coast AQMD provides hourly reports throughout the district. The South Coast AQMD has jurisdiction over stationary sources ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diamond Bar, California
Diamond Bar is a city in eastern Los Angeles County, California, United States. At the 2010 census it had a population of 55,544, and in 2019 the population was estimated to be 55,720. It is named after the "diamond over a bar" branding iron registered in 1918 by ranch owner Frederic E. Lewis (1884–1963). The city features a public Los Angeles County golf course. Located at the junction of the Pomona and Orange freeways, Diamond Bar is primarily residential with shopping centers interspersed throughout the city. It is surrounded by the communities of Brea, Walnut, Chino Hills, Rowland Heights, Pomona, City of Industry, and South Diamond Bar. Northern Diamond Bar is a part of the Pomona Unified School District. Southern Diamond Bar is a part of the Walnut Valley Unified School District. The city is also served by International Polytechnic High School. It also has the first hydrogen fueling station to be built in Southern California, near the South Coast Air Quality Manag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Plant
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many power stations contain one or more generators, a rotating machine that converts mechanical power into three-phase electric power. The relative motion between a magnetic field and a conductor creates an electric current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, oil, and natural gas to generate electricity. Low-carbon power sources include nuclear power, and an increasing use of renewables such as solar, wind, geothermal, and hydroelectric. History In early 1871 Belgian inventor Zénobe Gramme invented a generator powerful enough to produce power on a commercial scale for industry. In 1878, a hydroelectric power station was designed and built by Wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheila Kuehl
Sheila James Kuehl (born February 9, 1941) is an American politician and retired actress, and served as the member of the Los Angeles County Board of Supervisors for the 3rd District and as board chair and chair pro tem. Kuehl was California's first openly gay state legislator, having previously served in the California State Senate and the California State Assembly, where she was the Assembly's first female speaker pro tem. Early life Kuehl was born Sheila Ann Kuehl in Tulsa, Oklahoma. Her father, Arthur, was an airplane construction worker at Douglas Aircraft. He was Catholic and her mother, Lillian, was Jewish. As a child actress, Kuehl performed under the stage name Sheila James. At age seven, Kuehl began to take tap dancing lessons. In one recital, Kuehl played an assistant in a skit called "The Old Sleuth" where she sat under a table listening for clues. To indicate she was listening, Kuehl made faces, which caused the audience to laugh and encouraged her to make more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nithya Raman
Nithya V. Raman is an American urban planner, activist, and politician serving as the Los Angeles City Councilmember for the 4th District since 2020. Raman, a member of the Democratic Party and the Democratic Socialists of America, defeated incumbent Councilmember David Ryu in 2020. Early life and education Nithya Raman was born in Kerala, India, and moved to Louisiana at 6 years old. She earned a bachelor's degree in political theory from Harvard University then a master's degree in urban planning from MIT. Career After living in the United States for many years, Raman returned to her home country of India and founded the research firm Transparent Chennai. The firm's goal was to improve sanitation in the city of Chennai. Prior to entering politics, Raman founded and headed a homelessness nonprofit in Los Angeles and was the executive director of Time's Up Entertainment. Los Angeles City Council (2020—) Election Raman declared her candidacy for the Los Angeles City C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lisa Bartlett
Lisa A. Bartlett (née Sato) is an American politician and former businesswoman. Bartlett is a county supervisor of Orange County for district 5. Bartlett is the former mayor of Dana Point, California. She is a Republican. Early life Bartlett was born in Culver City, and moved to Orange County when she was three years old. She is of Japanese descent. Political career Dana Point City Council Bartlett's political career started in 2006, when she was elected to the Dana Point city council. She was reelected to a second term in 2010 and for two years she was mayor (in 2009 and in 2014). Orange County Board of Supervisors In 2014, she ran for the fifth district seat on the Orange County board of supervisors. She finished in second place in the June primary but defeated Laguna Niguel city councilman Robert Ming in the November runoff. In 2018, she was re-elected, having run unopposed. She served as chair of the Orange County board of supervisors in 2016 and 2019. U.S. House ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California State Senate
The California State Senate is the upper house of the California State Legislature, the lower house being the California State Assembly. The State Senate convenes, along with the State Assembly, at the California State Capitol in Sacramento, California, Sacramento. Due to a combination of the state's large population and a legislature that has not been expanded since the ratification of the California Constitution, 1879 Constitution, the State Senate has the largest population per state senator ratio of any state legislative house. In the United States House of Representatives, California is apportioned 53 U.S. representatives, each representing approximately 704,566 people, while in the California State Senate, each of the 40 state senators represents approximately 931,349 people. This means that California state senators each represent more people than California's members of the List of United States representatives from California, House of Representatives. In the current le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vanessa Delgado
Vanessa Delgado (born September 16, 1977) is an American politician and housing advocate from California. A Democrat, she served in the California State Senate in 2018, and is the former Mayor of Montebello, California. Early life Delgado attended Westridge School in Pasadena, California, graduating in 1995. She then earned a bachelor's degree in political science from Stanford University and a Master of Public Administration from the University of Southern California. She then worked in economic development for the cities of Pico Rivera, Anaheim, and Downey, California Downey is a city located in Southeast Los Angeles County, California, United States, southeast of downtown Los Angeles. It is considered part of the Gateway Cities. The city is the birthplace of the Apollo space program. It is also the home of .... Political career Delgado ran for the Montebello City Council in 2015, and won. In 2018 she ran for California's 32nd State Senate district. In the elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AERMOD
The AERMOD atmospheric dispersion modeling system is an integrated system that includes three modules:Prater, E.T. and Midgley, C., ''A new air dispersion modeling system is helping create more accurate industrial source models'', Environmental Protection, Vol. 17, No. 3, Stevens Publishing *A steady-state dispersion model designed for short-range (up to 50 kilometers) dispersion of direct air pollutant emissions primarily from stationary industrial sources. * A meteorological data preprocessor (AERMET) that accepts surface meteorological data, upper air soundings, and optionally, data from on-site instrument towers. It then calculates atmospheric parameters needed by the dispersion model, such as atmospheric turbulence characteristics, mixing heights, friction velocity, Monin-Obukov length and surface heat flux. * A terrain preprocessor (AERMAP) whose main purpose is to provide a physical relationship between terrain features and the behavior of air pollution plumes. It ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Atmospheric Dispersion Models
Atmospheric dispersion models are computer programs that use mathematical algorithms to simulate how pollutants in the ambient atmosphere disperse and, in some cases, how they react in the atmosphere. US Environmental Protection Agency models Many of the dispersion models developed by or accepted for use by the U.S. Environmental Protection Agency (U.S. EPA) are accepted for use in many other countries as well. Those EPA models are grouped below into four categories. Preferred and recommended models * AERMOD – An atmospheric dispersion model based on atmospheric boundary layer turbulence structure and scaling concepts, including treatment of multiple ground-level and elevated point, area and volume sources. It handles flat or complex, rural or urban terrain and includes algorithms for building effects and plume penetration of inversions aloft. It uses Gaussian dispersion for stable atmospheric conditions (i.e., low turbulence) and non-Gaussian dispersion for unstable condit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Dispersion Modeling
Atmospheric dispersion modeling is the mathematical simulation of how air pollutants disperse in the ambient atmosphere. It is performed with computer programs that include algorithms to solve the mathematical equations that govern the pollutant dispersion. The dispersion models are used to estimate the downwind ambient concentration of air pollutants or toxins emitted from sources such as industrial plants, vehicular traffic or accidental chemical releases. They can also be used to predict future concentrations under specific scenarios (i.e. changes in emission sources). Therefore, they are the dominant type of model used in air quality policy making. They are most useful for pollutants that are dispersed over large distances and that may react in the atmosphere. For pollutants that have a very high spatio-temporal variability (i.e. have very steep distance to source decay such as black carbon) and for epidemiological studies statistical land-use regression models are also used. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
