Using Proteins to Count and Differentiate Asbestos Fibers

Posted on December 21, 2009 by David Oliver

Suggested as an accurate and convenient alternative to the PCM method of estimating airborne concentrations of asbestos fibers, Japanese researchers have devised a method of using different E. coli proteins  to selectively bind to either amphiboles or chrysotile. The resulting mix of amphiboles and chrysotile fibers can then be more precisely counted and differentiated.

The number of methods available to estimate asbestos exposure, each generating a different answer, continues to grow; further muddying the already murky waters of extrapolating past exposures from modern methods.

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