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Brownfield is land that is abandoned or underutilized due to pollution from industrial use. The specific definition of brownfield land varies and is decided by policy makers and/or land developers within different countries. The main difference in definitions of whether a piece of land is considered a brownfield or not depends on the presence or absence of pollution. Overall, brownfield land is a site previously developed for industrial or commercial purposes and thus requires further development before reuse. Examples of post industrial brownfield sites include abandoned factories, dry cleaning establishments, and gas stations. Typical contaminants include hydrocarbon spillages, solvents and pesticides, asbestos, and heavy metals like lead. Many contaminated post-industrial brownfield sites sit unused because the cleaning costs may be more than the land is worth after redevelopment. Previously unknown underground wastes can increase the cost for study and clean-up. Depending on the contaminants and damage present adaptive re-use and disposal of a brownfield can require advanced and specialized appraisal analysis techniques. Definition Canada The Federal Government of Canada defines brownfields as "abandoned, idle or underutilized commercial or industrial properties [typically located in urban areas] where past actions have caused environmental contamination, but which still have potential for redevelopment or other economic opportunities." United States The U.S. Environmental Protection Agency (EPA) defined brownfield as a property where expansion, redevelopment or reuse may be complicated by the presence or potential presence of a hazardous substance, pollutant or contaminant. This comports well with an available general definition of the term, which scopes to "industrial or commercial property". The term brownfield' first came into use on June 28, 1992, at a U.S. congressional field hearing hosted by the Northeast Midwest Congressional Coalition. Also in 1992, the first detailed policy analysis of the issue was convened by the Cuyahoga County, Ohio Planning Commission. EPA selected Cuyahoga County as its first brownfield pilot project in September 1993. The term applies more generally to previously used land or to sections of industrial or commercial facilities that are to be upgraded. In 2002, President George W. Bush signed the Small Business Liability Relief and Brownfields Revitalization Act (the "Brownfields Law") which provides grants and tools to local governments for the assessment, cleanup, and revitalization of brownfields as well as unique technical and program management experience, and public and environmental health expertise to individual brownfield communities. The motivation for this act was the success of the EPA's brownfields program, which it started in the 1990s in response to several court cases that caused lenders to redline contaminated property for fear of liability under the Superfund. As of September 2023, the EPA estimates that the EPA Brownfields program has resulted in 134,414 acres of land readied for reuse. Mothballed brownfields are properties that the owners are not willing to transfer or put to productive reuse. Brownfield status is a legal designation which places restrictions, conditions or incentives on redevelopment and use on the site. United Kingdom In the United Kingdom, brownfield land and previously developed land (PDL) have the same definition under the National Planning Policy Framework (NPPF). The government of the United Kingdom refers to them both as: "Land which is or was occupied by a permanent structure, including the curtilage of the developed land (although it should not be assumed that the whole of the curtilage should be developed) and any associated fixed surface infrastructure." They exclude land that: "is or has been occupied by agricultural or forestry buildings; has been developed for minerals extraction or waste disposal by landfill purposes where provision for restoration has been made through development control procedures; land in built-up areas such as private residential gardens, parks, recreation grounds and allotments; and land that was previously developed but where the remains of the permanent structure or fixed surface structure have blended into the landscape in the process of time." Locations and contaminants Generally, post industrial brownfield sites exist in a city's or town's industrial section, on locations with abandoned factories or commercial buildings, or other previously polluting operations like steel mills, refineries or landfills. Small brownfields also may be found in older residential neighborhoods, as for example dry cleaning establishments or gas stations produced high levels of subsurface contaminants. Typical contaminants found on contaminated brownfield land include hydrocarbon spillages, solvents, pesticides, heavy metals such as lead (e.g., paints), tributyl tins, and asbestos. Old maps may assist in identifying areas to be tested. Brownfield status by country The primary issue facing all nations involved in attracting and sustaining new uses to brownfield sites is globalization of industry. This directly affects brownfield reuse, such as limiting the effective economic life of the use on the revitalized sites. Canada Canada has an estimated 200,000 "contaminated sites" across the nation. As of 2016 Canada had about 23,078 federally recognized contamination sites, from abandoned mines, to airports, lighthouse stations, and military bases, which are classified into N 1,2,or 3, depending on a score of contamination, with 5,300 active contaminated sites, 2,300 suspected sites and 15,000 listed as closed because remediated or no action was necessary. The provincial governments have primary responsibility for brownfields. The provinces' legal mechanisms for managing risk are limited, as there are no tools such as "No Further Action" letters to give property owners finality and certainty in the cleanup and reuse process. Yet, Canada has cleaned up sites and attracted investment to contaminated lands such as the Moncton rail yards. A strip of the Texaco lands in Mississauga is slated to be part of the Waterfront Trail. However, Imperial Oil has no plans to sell the 75-acre (30 ha) property which has been vacant since the 1980s. According to their 2014 report on federally listed contaminated sites, the Parliamentary Budget Officer estimated that the "total liability for remediating Canada's contaminated sites reported in the public accounts [was] $4.9 billion.": 1  The report listed significant sites called the Big Five with a liability of $1.8 billion: Faro mine, Colomac Mine, Giant Mine, Cape Dyer-DEW line and Goose Bay Air Base. The Port Hope, Ontario site has a liability of $1 billion. Port Hope has the largest volume of historic low-level radioactive wastes in Canada, resulting from "radium and uranium processing in Port Hope between 1933 and 1988 by the former.... Discover the Matthew Brownfield popular books. Find the top 100 most popular Matthew Brownfield books.