Letter to the Editor
Response to O'Reilly et al. (2014)
Version of Record online: 25 JUN 2014
© 2014 SETAC
Integrated Environmental Assessment and Management
Volume 10, Issue 3, pages 323–324, July 2014
How to Cite
Crane, J. L. (2014), Response to O'Reilly et al. (2014). Integr Environ Assess Manag, 10: 323–324. doi: 10.1002/ieam.1539
- Issue online: 25 JUN 2014
- Version of Record online: 25 JUN 2014
- Accepted manuscript online: 18 APR 2014 03:41AM EST
- Manuscript Accepted: 15 APR 2014
- Manuscript Received: 18 MAR 2014
- O'Reilly et al. (2013) made several errors in their paper regarding environmental forensic techniques for pyrogenic polycyclic aromatic hydrocarbons (PAHs).
- Their use of alkylated PAHs in forensic evaluations to determine petrogenic (i.e., oil-based) sources of PAHs is limited for urban sediments that are frequently classified as pyrogenic (i.e., combustion sources).
- O'Reilly et al. (2013) used a small number of samples from multiple sources in their principal components analysis figures and they simply do not have enough data to use this statistical technique.
- The authors recommended using both the USEPA's chemical mass balance and Unmix models for evaluating the source apportionment of PAHs in sediment data sets; however, this will not be feasible for most studies because the Unmix model requires a large sample size.