25386
Patton Flow ( (R) ) increased the MN frequency in fish erythrocytes after 48 h of exposure at a concentration of 66 mg / L , whereas a concentration range of 22 - 66 mg / L was able to exert the same genotoxic effect at 96 h of treatment .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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