10495
To assess human health risk through seafood consumption in a coastal area of Guangdong Province , South China , a total of 518 seafood samples ( including fish , shrimp , crabs , and mollusks ) were collected from 11 coastal cities for total mercury ( THg ) analysis .
 Chemical: mercury
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: mercury