10497
The THg concentrations were relatively low compared with fish from Europe and North America , and no samples exceeded the national limit recommended by the Standardization Administration of China ( 0 . 5 ng / g wet wt ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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