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The first legislated exhaust (tailpipe) emission standards were promulgated by the State of California for 1966 model year for cars sold in that state, followed by the United States as a whole in model year 1968. Also in 1966, the first emission test cycle was enacted in the State of California measuring tailpipe emissions in PPM (parts per ...
Methylcyclopentadienyl manganese tricarbonyl (MMT or MCMT) is an organomanganese compound with the formula (C 5 H 4 CH 3)Mn(CO) 3.Initially marketed as a supplement for use in leaded gasoline, MMT was later used in unleaded gasoline to increase the octane rating.
Chemexper Chemical Directory catalogue chemicals CASno Structure SMILES "ChemExper". Chemxpert Database Chemxpert Chemical Database small molecules database buyers,suppliers "ChemxpertDB". 10,00000 Chemical Book East West University: commercially available compounds CASno, suppliers, properties "Chemical Book". 200,000 Chemical Register
A 2011 UK study estimates 90 deaths per year due to passenger vehicle PM. [31] In a 2006 publication, the U.S. Federal Highway Administration (FHWA) state that in 2002 about 1 per-cent of all PM 10 and 2 per-cent of all PM 2.5 emissions came from the exhaust of on-road motor vehicles (mostly from diesel engines). [32]
The formation rate is primarily a function of temperature and the residence time of nitrogen at that temperature. At high temperatures, usually above 1300 °C (2600 °F), molecular nitrogen (N 2) and oxygen (O 2) in the combustion air dissociate into their atomic states and participate in a series of reactions.
The decision to blow open five tank cars and burn the toxic chemical inside them after a freight train derailed in Eastern Ohio last year wasn't justified, the head of the National Transportation ...
The February 2023 derailment near the Ohio-Pennsylvania state line led to new safety rules and increased scrutiny of the rail industry and federal regulators. For more CNN news and newsletters ...
Each year, companies across a wide range of industries (including chemical manufacturing, metal mining, coal- or oil-burning electric utilities, and other industries) that manufacture, process, or otherwise use more than a certain amount of a listed chemical must report it to the TRI. For most listed chemicals, facilities must report if they ...