From Prof  Bill Glass’s introduction: solvents cause abortions and affect sperm. 

Measured air levels don’t include skin absorption.

For toluene, hippuric acid is tested in urine - the levels rise and fall depending on work exposure. [Toluene and benzene were discovered in the headspace above X-ray processing solutions.]  Solvents accumulate in fats and are excreted more slowly.  

One story:  that of the bloke whose wife made him sleep facing a new tallboy (because he breathed fumes on her all night -

 many solvents are excreted through the respiratory system) 

and stripped the finish off part of it by the end of the year. 

Those affected often become aggressive both at work and at home.  

It is common to find marriages and relationships falling apart.

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