REPORT O0CUMENT.T,ON | .. «- ~ .„„.gj^„, 



1. RcclpMiTf 1 Accasuon No 



4. TItto and SuMltIa 



Identification of Toxic Substances in the Upper niinois River 



5. Report Oat* 



nrtnher 1992 



7. Apthortt) , . ^ 



Richard E. Sparks and Philippe E. 



Ross 



Parformmt Or«anliation Rapt. 



I. Parforminc Orsanlxatton Nama and Addraa* 



River Research Laboratory 

 Forbes Biological Station 

 Illinois Natural History Survey 

 P.O. Box 599 

 Havana, IL 62644 



la Pro|act/Ta»k/Wor* Unit 



89/215 



II. ContracKC) or Grant(C) No 



WR3691 



12. Sponaofinc Organization Nama and Addraas 



Illinois Department of Energy and Natural Resources 



Office of Research and Planning 



325 West Adams Street 



Springfield. IL 62704-1892 



13. Typa of Raport & Pariod Covarad 



Between 1955 and 1958, several abundant species of acquatic 

 nail clams practically disappeared from the upper Illinois 

 equally drastic repercussions on the populations of ducks a 

 invertebrates. The situation changed very little into the 

 in water quality. This research found that porewater from 

 contains a toxic factor that inhibits the filtering ability 

 also negatively effects the water flea, while stimulating a 

 All evidence points to ammonia as the toxic agent. Also, a 

 contained toxic oil products, including polycyclic aromatic 

 naphthalene. A three phase Toxicity Identification and Eva 

 utilized in reaching these conclusions. 



insects, snails and finger- 

 River. These declines had 

 nd fish that fed upon these 

 1980s, despite improvements 

 relevant river sediments 



of fingernail clams and 



ga and bacteria growth, 

 t two sites, the porewater 



hydrocarbons, such as 

 luation methodology was 



Water Pollution, Toxicity, Water Pollution Effects (Animals] 

 Sedimants, Sedimentation, Suspended Sediments 



b. M«ntlfi«rs/09«n-End«d Tarmt 



Sedimentation - Illinois River 



Toxicity - Illinois River 



Water Pollution - Illinois River 



c. COSATI Flald/Group 



Biol ogical and Medical Sciences; Environmental Biology 



i«. Avaiiabiirty statamant fjQ restriction on distribution. 

 Available at IL Depository Libraries or from 

 National Technical Information Service, 



■^pr-i nr|f-io1H yA 



19. Sacurtty Clait (This Raport) 



llnclassi fipu 



21. No. of Pagai 



11 



3. Sacuhty Clait (This Paga) 



Unclassi f led 



(Saa ANSI- 



39.18) 



Saa Inttructiont on Ktimn* 



OPTIONAL FORM 272 (1-77) 

 (Formerly NTIS-35) 

 Dapartmant of Commarca 



