Page iii of Attachment • D 
ABSTRACT 
A valk-through industrial hygiene survey was conducted at the Cetus 
Corporation research laboratories in Berkeley and Emeryville, California 
Oil April 9, 1980. This comoany is involved in research and development 
Of recombinant DNA fermentation processes applicable to chemical synthesis 
pharmaceutical preparation, and fuel production. Assessments of control 
technology, including containment design, validation procedures, and 
Work practices were made during the visit. Recommendations were made to 
Strengthen specific areas in order to minimize potential hazards to the 
worker. 
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