Mean GC-MS peak areas of the VOCs adsorbed on carboxen-PDMS-DVB SPME fibers exposed in the two grasslands.

Mean areas are indicated in percentage of the total area. Fibers were exposed in Montagne (M) and La Prade (LP) grasslands at the beginning (P1) and after (P2) cows grazing. Significance of the effects of the grassland (G), the period (P) and their interaction (G × P) ***p<0.001 **p<0.01 *p<0.05. IQ: identification quality a MS and RI in accordance with published databases and with the laboratory database b: MS and LRI in accordance with published databases and c: MS in accordance with published databases, RI not available. Groups in the same row sharing the same superscript do not differ significantly according to Fisher Least Square Difference (LSD) analysis (p < 0.05). Mean GC-MS peak areas of the VOCs adsorbed on carboxen-PDMS-DVB SPME fibers exposed in the two grasslands.