16105
Five nanomaterials ( nano - Ag , nano - TiO2 , nano - ZnO , carbon nanotubes [ CNTs ] , and fullerenes ) and 4 environmental compartments ( surface water , sewage treatment plant effluents , soils , and sludge - treated soils ) were considered .
 Chemical: Ag; Chemical: TiO2; Chemical: ZnO; Chemical: carbon; Chemical: fullerenes
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: Ag; Chemical: TiO2; Chemical: ZnO; Chemical: carbon; Chemical: fullerenes