Table 1.

Targeted and untargeted compounds found by Ion Analytics.

	High Elevation		Low Elevation
Identity Level	Targeted	Untargeted	Targeted	Untargeted
Positive	92	15	82	13
Tentative	78	54	69	43
* Unknown	17	61	15	58
Total	187	130	166	114

* Unknowns are assigned a numerical identifier in the database.