Pittsburgh is a city in the Commonwealth of Pennsylvania and the county seat of Allegheny County. It is the second-most populous city in Pennsylvania, behind Philadelphia, and 68th-largest city in the U.S. with a population of 302,971 as of the 2020 census. The city anchors the Pittsburgh metropolitan area of Western Pennsylvania; its population of 2.37 million is the largest in both the Ohio Valley and Appalachia, the second-largest in Pennsylvania, and the 27th-largest in the U.S. It is the principal city of the greater Pittsburgh–New Castle–Weirton combined statistical area that extends into Ohio and West Virginia.
Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog to refer to smoky fog due to its opacity, and odor. The word was then intended to refer to what was sometimes known as pea soup fog, a familiar and serious problem in London from the 19th century to the mid-20th century. This kind of visible air pollution is composed of nitrogen oxides, sulfur oxide, ozone, smoke and other particulates. Man-made smog is derived from coal combustion emissions, vehicular emissions, industrial emissions, forest and agricultural fires and photochemical reactions of these emissions.
Donora is a borough in Washington County, Pennsylvania, United States, approximately 20 miles (32 km) south of Pittsburgh on the Monongahela River.
United States Steel Corporation, more commonly known as U.S. Steel, is an American integrated steel producer headquartered in Pittsburgh, Pennsylvania, with production operations primarily in the United States of America and in several countries across Central Europe. It was the 8th largest steel producer in the world in 2008. By 2018, the company was the world's 38th-largest steel producer and the second-largest in the United States behind Nucor Corporation.
Henry Clay Frick was an American industrialist, financier, and art patron. He founded the H. C. Frick & Company coke manufacturing company, was chairman of the Carnegie Steel Company, and played a major role in the formation of the giant U.S. Steel manufacturing concern. He also financed the construction of the Pennsylvania Railroad and the Reading Company, and had extensive real estate holdings in Pittsburgh and throughout the state of Pennsylvania. He later built the historic neoclassical Frick Mansion, and upon his death donated his extensive collection of old master paintings and fine furniture to create the celebrated Frick Collection and art museum. However, as a founding member of the South Fork Fishing and Hunting Club, he was also in large part responsible for the alterations to the South Fork Dam that caused its failure, leading to the catastrophic Johnstown Flood. His vehement opposition to unions also caused violent conflict, most notably in the Homestead Strike.
David Leo Lawrence was an American politician who served as the 37th Governor of Pennsylvania from 1959 to 1963. The first Catholic elected as governor, Lawrence is the only mayor of Pittsburgh to have also been elected as Governor of Pennsylvania. He served four terms as mayor, from 1946 through 1959.
Greater Pittsburgh is a populous region centered around its largest city and economic hub, Pittsburgh, Pennsylvania. The region encompasses Pittsburgh's urban core county, Allegheny, and six adjacent Pennsylvania counties in Western Pennsylvania which constitute the Pittsburgh, PA Metropolitan Statistical Area (MSA) as defined by the U.S. Census Bureau.
William Henry Donner (1864–1953) was an American businessman and philanthropist, born in Columbus, Indiana. He graduated from Hanover College in 1887.
The geography of Pennsylvania varies from sea level marine estuary to mountainous plateau. It's significant for its natural resources and ports, and is notable for its role in the history of the United States.
Devra Lee Davis is an American epidemiologist, toxicologist, and author of three books about environmental hazards. She was founding director of the Center for Environmental Oncology at the University of Pittsburgh Cancer Institute, and is a former professor of epidemiology at University of Pittsburgh Graduate School of Public Health. She has served on several governmental and non-governmental organizations, conducting research and advocacy into effects of pesticides, asbestos, and wireless radiation on human health, especially cancers.
The Pennsylvania State Archives is the official archive for the Commonwealth of Pennsylvania, administered as part of the Pennsylvania Historical and Museum Commission. Located at 350 North Street in the state capital of Harrisburg, it is a part of the Pennsylvania State Capitol Complex.
The 1948 Donora smog killed 20 people and caused respiratory problems for 6,000 of the 14,000 people living in Donora, Pennsylvania, a mill town on the Monongahela River 24 miles (39 km) southeast of Pittsburgh. The event is commemorated by the Donora Smog Museum.
When Weather Changed History was an American documentary television series that was shown The Weather Channel from 2008 to 2009. It chronicles major events in history and the effect weather had on them.
The Clark Family Library, formerly U. Grant Miller Library is the academic library for Washington & Jefferson College, located in Washington, Pennsylvania. The library traces its origins back to a donation from Benjamin Franklin in 1789. The Archives and Special Collections contain significant holdings of historical papers dating to the college's founding. The Walker Room contains the personal library of prominent industrialist John Walker, complete with all of his library's fixtures and furniture, installed exactly how it had been during Walker's life.
Donora is an American indie pop/rock/shoegaze band based in Pittsburgh, Pennsylvania. They first gained visibility in 2006 as semifinalists in the contest, "Calling All Bands", sponsored by MySpace and Verizon Wireless, for their song "She's Just a Girl". The band had music included on the MTV series Engaged and Underage, Cribs, and Teen Wolf, as well as the direct-to-video comedy Lower Learning, starring Eva Longoria and Jason Biggs.
This is a list of notable events relating to the environment in 1948. They relate to environmental law, conservation, environmentalism and environmental issues.
The 1930 Meuse Valley fog killed 60 people in Belgium owing to a combination of industrial air pollution and climatic conditions in December that year.
An air pollution episode is an unusual combination of emissions and meteorology that gives rise to high levels of air pollution over a large area. Examples of air pollution episodes include:
The 1966 New York City smog was a major air-pollution episode and environmental disaster, coinciding with that year's Thanksgiving holiday weekend. Smog covered the city and its surrounding area from November 23 to 26, filling the city's air with damaging levels of several toxic pollutants. It was the third major smog in New York City, following events of similar scale in 1953 and 1963.
