Data 



Actions 



I 



Production, Use and 

 Disposal Information 



Exposure 

 Estimates f Concentrations 



Evaluation 



Decision 

 Alternatives 



JZ 



Minimal Hazard 



Review 



I 



Stop Testing 



mil 



USE 



I 



Substance Properties 

 & Fate Data 



Hazard Evaluation 



Uncertain Hazard 



Identify Further 

 Data Needs to 

 Define Hazard 



I 



Biological Test Data 



Excessive Hazard 



Review 



Stop Testing 



ABANDON 



Added Tests as 

 Needed 



RESTRICT 



Figure 2. Schematic diagram of the environmental hazard evaluation process 

 (modified from American Society of Testing and Materials Hazard 

 Evaluation Task Group, J.R. Duthie, Chairman). 



55 



