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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Environ Int. 2019 Jul 27;131:105022. doi: 10.1016/j.envint.2019.105022

Table 1.

Linear regression equations to convert particle counts to mass for each of the AirBeam unit

Unit Name Intercepts (Standard Error) Slope (Standard Error) RMSE Adj-R2
99B −10.72(0.29) 0.002616 (1.77 × 10–5) 23.48 0.95
B7E −11.69(0.44) 0.001974 (1.41 × 10–5) 14.84 0.98
B99 −13.16(0.42) 0.002102 (1.47 × 10–5) 15.50 0.98
C54 −6.68(0.18) 0.001905 (1.35 × 10–5) 8.92 0.96
C58 −4.91 (0.16) 0.002000 (1.05 × 10–5) 9.16 0.98
C72 −9.94 (0.34) 0.002537 (3.17 × 10–5) 10.50 0.95
D46 −11.26(0.37) 0.002049 (1.64 × 10–5) 11.39 0.98