10033
Using SVM , industrial wastewater from lead ore mining and metal handcraft manufacture , atmospheric deposition , and natural background were identified as main sources of trace element pollution in surface sediments from the Jinjiang River , which were affirmed by visually comparing compound patterns and the differences between the predicted and actual fractional compositions .
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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:
 None