Addition/Correction pubs.acs.org/est
Correction to Spatial Variation of Aerosol Chemical Composition and Organic Components Identified by Positive Matrix Factorization in the Barcelona Region Claudia Mohr,* Peter. F. DeCarlo, Maarten. F. Heringa, Roberto Chirico, René Richter, Monica Crippa, Xavier Querol, Urs Baltensperger, and André S. H. Prévôt Environ. Sci. Technol., 2015, 49 (17), 10421−10430 DOI:10.1021/acs.est.5b02149 We discovered that Figure 5 in the published manuscript is not displayed correctly. The blue fit line with slope = 0.011,
Figure 5. OA (Org, μg m−3) vs CO (ppbv) for the portion of the drive highlighted in Figure 1 on March 20, colored by local time. The subsets of the data used to calculate the slopes using orthogonal distance regression are indicated by the stars in Figure 1 and color coded accordingly. The black curve gives the slope for purely fossil secondary OA based on the findings by Minguillón et al. 32. Parameters a and b denotes slopes and intercepts (only where data was fit, see text).
intercept = 2.8 is missing, and the fit line with slope = 0.085, intercept = −4.7 is blue, but should be orange. All fit coefficient values shown in the graph are correct, and so are the conclusions in the article based on this graph. The correct version of Figure 5 is shown above.
© XXXX American Chemical Society
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DOI: 10.1021/acs.est.6b00449 Environ. Sci. Technol. XXXX, XXX, XXX−XXX
