This is the list of coastal counties that NOAA recommends for the Bureau of the Censusâ. Statistical Abstract publication series. There are 672 coastal counties including the District of Columbia in the United States. (285 in the Atlantic, 142 in the Gulf of Mexico, 87 in the Pacific, and 158 in the Great. Lakes).
Benzene is a natural constituent of crude oil, and is one of the most elementary petrochemicals. Benzene is an aromatic hydrocarbon and the second [ n ]- annulene ([6]-annulene), a cyclic hydrocarbon with a continuous pi bond.It is sometimes abbreviated Ph âH. Benzene is a colorless and highly flammable liquid with a sweet smell.enzene is an aromatic hydrocarbon and the second [ n ]- annulene ([6]-annulene), a cyclic hydrocarbon with a continuous pi bond. It is sometimes abbreviated Ph âH. Benzene is a colorless and highly flammable liquid with a sweet smell.
Benzene is one of a small number of industrial chemicals that is recognized as a known human carcinogen. Benzene is especially toxic to the blood-forming organs, i.e., the bone marrow and other organs that can produce blood cells.hat is Benzene? Benzene is the simplest aromatic hydrocarbon; it has 6 carbon atoms and 6 hydrogen atoms in a hexagonal (ring) structure. Discovered by the English scientist Michael Faraday in 1825, it was named benzene in 1845 by A.W. von Hofmann, the German chemist, who detected it in coal tar.