Carbon monoxide of carbon dioxide by electromagnetic radiation of wavelengths shorter than 169 nm. Due to its long lifetime in the mid-troposphere, carbon monoxide is also used as tracer of transport for pollutant plumes. Carbon monoxide is a temporary atmospheric pollutant in some urban areas, chiefly from the exhaust of internal combustion engines (including vehicles, portable and back-up generators, lawn mowers, power washers, etc.), but also from incomplete combustion of various other fuels (including wood, coal, charcoal, oil, paraffin, propane, natural gas, and trash). Large CO pollution events can be observed from space over cities. Carbon monoxide is, along with aldehydes, part
Chainsaws in popular culture antagonist Leatherface chasing down victims on a highway for points would see low sales and limited exposure due to many stores refusal to sell it, along with fellow horror film adaptation "Halloween". Though chainsaws would be used as weapons in the 1970s/1980s horror film inspired cult "Splatterhouse" game series, and used by enemies in some beat-em ups (such as the Robocop arcade game) the next major appearance would not be until the 1990s. In 1993, pioneering first person shooter "Doom" was the first game including a chainsaw as a weapon for the player; giving chainsaws in horror games the same