3237
Biomarkers in marine mussels , Mytilus galloprovincialis , exposed to environmentally relevant levels of the pesticides , chlorpyrifos and penoxsulam .
 chlorpyrifos, penoxsulam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 chlorpyrifos, penoxsulam