Methylenebis (phenylisocyanate): Health effects
Description
This depends on how much methylene bis (phenylisocyanate) you have been exposed to, for how long, and your current state of health. In certain circumstances, even a brief exposure to very high levels of methylene bis (phenylisocyanate) can result in skin and other irritations and affect breathing capacity. Exposure can result in symptoms such as skin dermatitis, nose, throat, lung and eye irritations. If it is inhaled as a dust it can cause shortness of breath, wheezing, coughing and chest tightness, headache and nausea.
Entering the body
Can be inhaled as minute dust particles or in the form of a fine spray mist. May result in irritation when in contact with the skin or eyes.
Exposure
People may be exposed to very low levels of Methylene bis (phenylisocyanate) from direct contact with freshly manufactured or produced products that contain it. People working in or living near industries that produce or use it may be subject to low but persistent exposure to minute amounts of dust particles. Exposure is limited to areas where it is used or manufactured.
Health guidelines
Worksafe Australia:
Time weighted average atmospheric exposure levels over an 8 hour period is suggested as 0.02 milligrams/cubic metre of air and short term exposure (15 minute interval) is limited to 0.07 mg/m3. The compound is recognised as one that can produce a skin rash or a reduction in immunity in some people. Individuals that respond to the substance in this fashion should avoid all further exposure.
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