TOXICITY EVALUATION PROTOCOL - FIELD STUOIES 



CHARACTERIZATION OF WASTE - I 



CHARACTERIZATION OF RECEIVING SYSTEM -2 



DETERMINATION OF PRIORITY -3 



FIELD SCREENING TEST - 48 



1. Dorsrmlns rhs sffscts of th* sfttusnt on ths mocrolnvsrfsbrots 

 ond porlphyton communitiss in rho rtcsivtng systsm. 



2. Dstormin* if ths constituents of rh« oftluont have ih« potontial 

 to undergo otomagnifieation. 



NO MORE TESTS 

 REOUIREO UNLESS 

 INDICATED 8Y 

 LABORATORY TESTS 



OECISION BOX - 58 



1. It trior* o significant offset on tho mocroinvortsorote and 

 psriphyton community ? 



2. Is fhors biomagmficotiont 



FOOO CHAIN 

 ANO PUBLIC 

 HEALTH 

 STUOIES 



NO MORE TESTS 

 UNLESS 

 INDICATED BY 

 LABORATORY TEST 



DECISION BOX - 7B 



1. Is th« special diversity and functional capacity of the 

 aquatic community significantly affected by the effluent ? 



2. Is there an effect on primary productivity on bacterial 

 activity? 



YES 



Figure 3. Toxicity evaluation protocol—field studies. Reprinted with per- 

 mission from the American Society for Testing and Materials as printed in 

 J. Cairns Jr. and K.L. Dickson. 1978. Field and laboratory protocols for 

 evaluating effects of potentially toxic wastes on aquatic life. J. of Testing 

 and Evaluation 6(2): 85-94. Copyright ASTM. 



169 



