21891
Juvenile fish were exposed to sublethal concentrations of 0 . 3 , 3 , 30 , or 90 mu gL ( - 1 ) for 28days .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None