1255
One - hour O3 , NO2 , and SO2 personal exposures were measured using samplers developed in our laboratory , while short - term PM2 . 5 , CO , and VOCs exposures were measured using currently available monitors .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None