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Table 1

Cumulative emission estimates and variance weighted least squares regressions on tracer facility estimate (TFE) relative to study onsite estimate (SOE) at paired facilities. DOI: https://doi.org/10.1525/elementa.266.t1

StatisticAll facilities with paired TFE & SOEPaired Facilities Subdivided by Largest SOE Category

Simulated unloadingsSimulated pneumaticsODM or simulated observed/unmeasured

 
Number of facilities 16 
Statistically similar estimates 15 
Cumulative TFE (kg/h)a 831 (+208/–207) 821 (+207/–207) 0.89 (+12/–0.44) 9.4 (+2.6/–2.3) 
Cumulative SOE (kg/h)a 430 (+557/–247) 424 (+558/–247) 0.37 (+0.32/–0.20) 5.7 (+5.2/–1.2) 
Fraction of Cumulative SOE 100% 98.60% 0.10% 1.30% 
Cumulative TFE/Cumulative SOE 193% 194% 241% 163% 
Correlation coefficient, r 0.983 0.999 1.000 0.886 
Variance Weighted Least Squaresa,b,c Slope 1.7 (+0.54/–0.40) 1.2 (+11/–0.87) 3.7 (+44/–2.4) 1.6 (+0.51/–0.39) 
R2 0.97 0.79 0.43 0.67 
StatisticAll facilities with paired TFE & SOEPaired Facilities Subdivided by Largest SOE Category

Simulated unloadingsSimulated pneumaticsODM or simulated observed/unmeasured

 
Number of facilities 16 
Statistically similar estimates 15 
Cumulative TFE (kg/h)a 831 (+208/–207) 821 (+207/–207) 0.89 (+12/–0.44) 9.4 (+2.6/–2.3) 
Cumulative SOE (kg/h)a 430 (+557/–247) 424 (+558/–247) 0.37 (+0.32/–0.20) 5.7 (+5.2/–1.2) 
Fraction of Cumulative SOE 100% 98.60% 0.10% 1.30% 
Cumulative TFE/Cumulative SOE 193% 194% 241% 163% 
Correlation coefficient, r 0.983 0.999 1.000 0.886 
Variance Weighted Least Squaresa,b,c Slope 1.7 (+0.54/–0.40) 1.2 (+11/–0.87) 3.7 (+44/–2.4) 1.6 (+0.51/–0.39) 
R2 0.97 0.79 0.43 0.67 

a 95% Confidence bounds indicated.

b Linear regression with intercept of 0.

c R2 is a measure of goodness of fit in y-axis only and does not consider goodness of fit in x-axis.

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