Figures & data
Figure 1. Schematic plot of the DPAS PM light absorption measurement technique.
Figure 2. The PM sampling and measurement system at the JBTS facility of UTRC.
Figure 3. Signal responses from both sample and reference cells to the NO2 standards.
Figure 4. Calibration curves of DPAS cells derived from NO2 standards.
Figure 5. Allan analysis of the DPAS PM light absorption instrument when measuring pure N2.
Figure 6. Time series of absorption coefficients from the DPAS measurements when measuring soot + NO2.
Figure 7. Comparison between soot absorption coefficients from the DPAS measurements and soot mass concentrations from the MSS measurements.
Figure 8. Determination of MAC for the soot particles at 532 nm via the linear correlation between the DPAS and MSS results.
