Table 2

Relative abundances.

May 2015

Species Abundance

relative to Methane [CH4] Water [H2O]
Methane (1.00 ± 0.00) × 10+0 (3.43 ± 0.68) × 10−3
Ethane (8.51 ± 1.70) × 10−1 (2.92 ± 0.58) × 10−3
Propane (5.25 ± 1.05) × 10−2 (1.80 ± 0.36) × 10−4
Butane Not detected(*) Not detected(*)
Pentane Not detected(*) Not detected(*)
Benzene (2.02 ± 0.41) × 10−3 (6.94 ± 1.39) × 10−6
Toluene (1.80 ± 0.36) × 10−2 (6.16 ± 1.23) × 10−5

May 2016

Species Abundance

relative to Methane [CH4] Water [H2O]

Methane (1.00 ± 0.00) × 10+0 (6.48 ± 1.30) × 10−2
Ethane (7.92 ± 1.58) × 10+0 (5.13 ± 1.03) × 10−1
Propane (4.24 ± 0.85) × 10−1 (2.75 ± 0.55) × 10−2
Butane (8.15 ± 1.63) × 10−2 (5.28 ± 1.06) × 10−3
Pentane (7.02 ± 1.40) × 10−2 (4.55 ± 0.91) × 10−3
Benzene (1.21 ± 0.24) × 10−2 (7.81 ± 1.56) × 10−4
Toluene Not detected(*) Not detected(*)

Notes. (*) Detection limit is estimated to be 10 ions.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.