14905
Arsenic concentrations were 1 . 087 mu g / mL ( 108 . 7 % ) , 1 . 027 mu g / mL ( 102 . 7 % ) , 0 . 330 mu g / mL ( 33 . 0 % ) and 0 . 274 mu g / mL ( 27 . 4 % ) in MDM , KFE , NIB and HEB respectively .
 Chemical: Arsenic
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: Arsenic