30229
In order to evaluate the pollution impact on the genetic diversity of Mediterranean mussel Mytilus galloprovincialis ten populations inhabiting differently polluted sites along the eastern Adriatic coast , from pristine bays to heavily trafficked harbours , were studied .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None