ABSTRACT
Isopropylamine is a natural component of tobacco and maize, and it is probably released to the environment through their decomposition. Decomposing animal manure has been shown to release isopropylamine to the environment. Isopropylamine may also be released to the environment via effluents at sites where it is produced or used as a chemical intermediate or a solvent. River die-away tests and grab sample data pertaining to the biodegradation of isopropylamine in natural waters and soil were not located in the available literature. A single aerobic screening test, which utilized activated sludge for inocula, suggests isopropylamine should biodegrade rapidly in the environment. The most probable route of human exposure to isopropylamine is by inhalation, dermal contact and ingestion. Cigarette smokers are likely to inhale isopropylamine, and atmospheric workplace exposures have been documented for farm and barnyard workers.
