Table 1.

Possible sources for biochemical signatures in bioaerosols from various sample types

Sample Type	Skin Debris	Fur/Hair	Feathers	Scales	Insect Debris	Plant Debris
DNA	occasionally, truncated	only in root-bulb	yes	occasionally, truncated	yes	yes
RNA	yes	not beyond root-bulb	unlikely	unlikely	yes	yes
Proteins	yes, structural (e.g. keratin)	yes, structural (e.g. keratin)	yes, structural (e.g. keratin)	yes, structural (e.g. keratin)	structural (e.g. chitin)	yes, structural
Nucleic Acids	small amounts	not beyond root-bulb	small amounts	small amounts	yes	small amounts
Lipids	yes, large amounts	no	no	no	yes	yes
Glycosylated Species	yes	no	no	no	likely	likely
Amino Acids	yes	yes	yes	yes	yes	yes