Toxins in body

Reference values are intended to characterize the upper margin of a current background contamination of a pollutant at a given time. For contaminants in the indoor environment reference values may be calculated applying the procedure as for environmental toxins in body fluids (Ewers et al., 1999). Reference values for pollutants in house dust were reviewed recently by Butte (2003). It has to be emphasized that a reference value has no health meaning nor regulatory implication. 

Diagnosis is usually on clinical grounds. Laboratory confirmation will require testing for the toxin in body fluids including blood, urine and respiratory secretions. 

Diagnosis relies mainly on the presence of t) 3ical signs and symptoms in a large number of people affected within a small period of time and associated with a rapid plateau in illness severity. Laboratory confirmation will require testing for the toxin in body fluids, including blood, urine and respiratory secretions. 

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