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Table 1 Gas composition measured by GC for CH4, CO2, O2 and by Lucideon Ltd for trace contaminants H2S, H2 and NH3

From: Isolation and characterisation of Methylocystis spp. for poly-3-hydroxybutyrate production using waste methane feedstocks

Sample Source location Date of sampling CH4 (%) CO2 (%) O2 (%) N2 (%) H2S (ppm) H2 (ppm) NH3 (mg/m3)
AD1 Staffordshire 17/12/17 49.0 40.3 2.1 7.7 94.0 0 2.9
AD2 Staffordshire 16/01/18 58.6 33.4 2.1 7.8 462.0 0  > 0.7
AD3 Staffordshire  26/02/19 62.4 40.5 0.5 0.0 682.0 23.0 0
AD4 Staffordshire  26/02/19 58.0 38.0 0.4 0.0 34.0 16.0 0
LG1 East Midlands 07/01/2019 52.2 37.3 0.4 10.1 n/a n/a n/a
LG2 East Midlands 08/01/2019 45.6 31.5 0.4 22.5 n/a n/a n/a
LG3 East Midlands 08/01/2019 51.9 38.7 0.4 9.0 n/a n/a n/a
  1. n/a not applicable (not measured)