Articles | Volume 16, issue 6
https://doi.org/10.5194/acp-16-3865-2016
https://doi.org/10.5194/acp-16-3865-2016
Research article
 | 
23 Mar 2016
Research article |  | 23 Mar 2016

Oxidative potential of ambient water-soluble PM2.5 in the southeastern United States: contrasts in sources and health associations between ascorbic acid (AA) and dithiothreitol (DTT) assays

Ting Fang, Vishal Verma, Josephine T. Bates, Joseph Abrams, Mitchel Klein, Matthew J. Strickland, Stefanie E. Sarnat, Howard H. Chang, James A. Mulholland, Paige E. Tolbert, Armistead G. Russell, and Rodney J. Weber

Viewed

Total article views: 8,492 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
4,764 3,446 282 8,492 1,032 119 227
  • HTML: 4,764
  • PDF: 3,446
  • XML: 282
  • Total: 8,492
  • Supplement: 1,032
  • BibTeX: 119
  • EndNote: 227
Views and downloads (calculated since 04 Nov 2015)
Cumulative views and downloads (calculated since 04 Nov 2015)

Cited

Saved (preprint)

Latest update: 22 Feb 2025
Download
Short summary
Ascorbic acid (AA) and Dithiothreitol (DTT) assay measures of water-soluble PM2.5 oxidative potential (OP) are compared in terms of spatiotemporal trends, chemical selectivity, sources, and health impacts based on an epidemiological study with backcast estimated OP. Both assays point to metals from brake/tire wear, but only the DTT assay also identifies organics from combustion. DTT is associated with emergency department visits for asthma/wheeze and congestive heart failure, whereas AA is not.
Share
Altmetrics
Final-revised paper
Preprint