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Investigating an SBS Incident

There have been many instances when biological agents have been ruled out and all volatile chemicals have been shown to be present in concentrations below those believed to induce symptoms. In all such instances that have been reported in the literature, the symptoms have either been ascribed to ultrasensitive individuals or psychological responses on the part of those reporting the symptoms. Recent research has established that mixtures of [Pg.190]

Chemical analysis of the air by GC/MS showed several VOCs, all present at concentrations far below ACGIH workplace TLVs. Table 12.7 shows the chemicals found, their concentrations, TLV values, and the Kqw values (octanol water partition coefficients) for these. The data are those reported. The Kqw values were added here. [Pg.191]

Individually and collectively, assuming additive effects, one would not expect to observe the respiratory system, CNS, skin, and other symptoms reported by the employees in the subject building. The authors of the study concluded that although an outbreak of symptoms occurred, the causative agent(s) could not be identified. The Kqw values, however, show that three hydrophiles (formaldehyde, valeraldehyde, and 2-hexanone) and seven lipophiles (1,1,1-trichloroethane, styrene, ethyl benzene, toluene, TCE, [Pg.191]

The study just described is but one example of the lipophile hydrophile mixture effect. I have investigated and reported on several SBS such cases 14 an(j have not encountered any SBS case attributable to low level chemical contamination that did not reveal the presence of mixtures of hydrophiles and lipophiles. [Pg.192]

Stolwijk JAJ. The sick-building syndrome. Environ Elealth Perspect 1992 95 99-100. [Pg.192]


See other pages where Investigating an SBS Incident is mentioned: [Pg.190]    [Pg.143]    [Pg.154]   


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