28162
Short - term toxicity of hexavalent - chromium to epipsammic diatoms of a microtidal estuary ( R i o de la Plata ) : Responses from the individual cell to the community structure .
 Chemical: hexavalent - chromium
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: hexavalent - chromium