Health hazard evaluation report: HHE-72-120-33, Frontier Airlines, Denver, Colorado.
An environmental and medical survey indicates that the chemical, B and B2020 Plus, containing primary naphthalene (91203) and used for airplane cleaning, is toxic at concentrations exceeding the standard level of 50 milligrams per cubic meter for naphthalene. The other toxic substance identified in the survey, methyl-ethyl-ketone (78933), has a standard 8-hour time weighted average of 590 milligrams per cubic meter. Toxic effects of both compounds and of petroleum distillates include headache, loss of appetite, nausea, optical neuritis, cornea injuries, kidney damage, conjunctiva, mucous membrane irritation, nervous depression, transient euphoria, and restlessness. Safety recommendations include the use of the cleaner strictly according to the manufacturers' specifications, and screening out of hypersensitive employees.