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. 2023 May 2;57(19):7382–7390. doi: 10.1021/acs.est.2c08582

Table 2. Parameters Varied in Sensitivity Analyses and Base Case Simulations.

set of simulations close-range inspection data sets, which are then combined with the flyover data set fraction of sites with emissions from close-range inspections when combining close-range and flyover data sets at each Monte Carlo iteration pLeaka MTBF [days]a MTTR [days]a
base case Allen et al.,7 Bell et al.,22 Kuo et al.,23 and Pacsi et al.24b 0.71 tanks = 0.046; flares = 0.1 tanks = 1515; flares = 1435 tanks = 73; flares = 159
sensitivity analysis S0 Allen et al.,7 Bell et al.,22 Kuo et al.,23 Pacsi et al.,24 ERG,28 and Ravikumar et al.29c 0.71 tanks = 0.046; flares = 0.1 anks = 1515; flares = 1435 tanks = 73; flares = 159
sensitivity analysis S1 Allen et al.,7 Bell et al.,22 Kuo et al.,23 and Pacsi et al.24b 0.91 tanks = 0.046; flares = 0.1 anks = 1515; flares = 1435 tanks = 73; flares = 159
sensitivity analysis S2 Allen et al.,7 Bell et al.,22 Kuo et al.,23 and Pacsi et al.24b 0.51 tanks = 0.046; flares = 0.1 anks = 1515; flares = 1435 tanks = 73; flares = 159
sensitivity analysis S3 Allen et al.,7 Bell et al.,22 Kuo et al.,23 and Pacsi et al.24b 0.71 tanks = 0.046; flares = 0.1 tanks = 103.7; flares = 45 tanks & flares = 5
sensitivity analysis S4 Allen et al.,7 Bell et al.,22 Kuo et al.,23 and Pacsi et al.24b 0.71 tanks = 0.046; flares = 0.1 tanks = 207.4; flares = 90 tanks & flares = 10
sensitivity analysis S5 Allen et al.,7 Bell et al.,22 Kuo et al.,23 and Pacsi et al.24b 0.71 tanks = 0.046; flares = 0.1 tanks = 622.2; flares = 270 tanks & flares = 30
a

All sets of simulations use the pLeak, MTBF, and MTTR parameters specified in Table 1 for: valves, connectors, open ended lines, pressure relief valves, flanges, and other components.

b

Emissions assigned based on equipment type from measurements for all sources.

c

Emissions assigned independently of equipment type from measurements except for tanks and flares.