3151
Sediment concentrations less than or equal to the ESB values are not expected to result in adverse effects and benthic organisms should be protected , while sediment concentrations above the ESB values may result in adverse effects to benthic organisms .
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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:
 None