1936
The procedure has been applied to three materials : particle board with carpet ; gypsum board with wallpaper ; and plywood with polyurethane lacquer , for which the steady - state emission factors ( mg m - 2 h - 1 ) of several compounds are given .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None