Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 211-128-3 | CAS number: 630-08-0
Phototransformation in air
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Carbon monoxide has been assessed in the context of Environmental Health Criteria (EHC 213, 1999). It was stated that:
“The physical and chemical properties of carbon monoxide suggest that its atmospheric removal occurs primarily by reaction with hydroxyl radicals. Almost all the carbon monoxide emitted into the atmosphere each year is removed by reactions with hydroxyl radicals (85%), by soils (10%) and by diffusion into the stratosphere.”
"Based on the global sources and sinks described above, the average atmospheric lifetime of carbon monoxide can be calculated to be about 2 months, with a range between 1 and 4 months. The lifetime, however, can vary enormously with latitude and season compared with its global average value. During winters at high and middle latitudes, carbon monoxide has a lifetime of more than a year, but during summers at middle latitudes, the lifetime may be closer to the average global lifetime of about 2 months. Moreover, in the tropics, the average lifetime of carbon monoxide is probably about 1 month” (EHC 213, 1999).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
