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The National Emission Standards for Hazardous Air Pollutants (NESHAP) are air pollution standards issued by the United States Environmental Protection Agency (EPA). The standards, authorized by the Clean Air Act, are for pollutants not covered by the National Ambient Air Quality Standards (NAAQS) that may cause an increase in fatalities or in serious, irreversible, or incapacitating illness.
Traditional format (DMY): (dd.mm.yyyy, [136] often with dots as separators; more official is d <month in genitive> yyyy, or, less frequently, d <month in Roman numerals> yyyy) [137] [138] Official format (YMD): The ISO 8601 YYYY-MM-DD format is used in official documents, banks, computer systems [ citation needed ] and the internet [ citation ...
New Source Performance Standards (NSPS) are pollution control standards issued by the United States Environmental Protection Agency (EPA). The term is used in the Clean Air Act Extension of 1970 (CAA) to refer to air pollution emission standards, and in the Clean Water Act (CWA) referring to standards for water pollution discharges of industrial wastewater to surface waters.
The amendments moved considerably beyond the original criteria pollutants, expanding the NESHAP program with a list of 189 hazardous air pollutants to be controlled within hundreds of source categories, according to a specific schedule. [1]: 16 The NAAQS program was also expanded. Other new provisions covered stratospheric ozone protection ...
The year-month-day order, such as the ISO 8601 "YYYY-MM-DD" notation is popular in computer applications because it reduces the amount of code needed to resolve and compute dates. It is also commonly used in software cases where there are many separately dated items, such as documents or media, because sorting alphanumerically will ...
US counties that are designated "nonattainment" for the Clean Air Act's NAAQS, as of September 30, 2017. The U.S. National Ambient Air Quality Standards (NAAQS, pronounced / ˈ n æ k s / naks) are limits on atmospheric concentration of six pollutants that cause smog, acid rain, and other health hazards. [1]
Mercury occurs naturally in the environment and exists in many forms. In pure form, it is known as "elemental" or "metallic" mercury. Elemental mercury is a shiny, silver-white metal that is liquid at room temperature.
The Internet Archive began archiving cached web pages in 1996. One of the earliest known pages was archived on May 10, 1996, at 2:08 p.m. (). [5]Internet Archive founders Brewster Kahle and Bruce Gilliat launched the Wayback Machine in San Francisco, California, [6] in October 2001, [7] [8] primarily to address the problem of web content vanishing whenever it gets changed or when a website is ...