12698
Although nearly all sediments were contaminated with Cd due to human activities , little potential existed for Cd toxicity in sediment - dwelling fauna .
 Chemical: Cd; Chemical: Cd
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: Cd; Chemical: Cd