3924
In the first Hong Kong Total Diet Study , the dietary exposure of the Hong Kong people , including various age - gender subgroups , to inorganic arsenic was estimated for assessing the associated health risk .
 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