Paper No. JAWRA-13-0070-P of the Journal of the American Water Resources Association (JAWRA).
Featured Collection: Contaminants of Emerging Concern II William Battaglin and Alan Kolok - Guest Editors
Dissipation of Contaminants of Emerging Concern in Biosolids Applied to Nonirrigated Farmland in Eastern Colorado†
Version of Record online: 1 APR 2014
© 2014 American Water Resources Association. This article is a U.S. Government work and is in the public domain in the USA
JAWRA Journal of the American Water Resources Association
Volume 50, Issue 2, pages 343–357, April 2014
How to Cite
2014. Dissipation of Contaminants of Emerging Concern in Biosolids Applied to Nonirrigated Farmland in Eastern Colorado. Journal of the American Water Resources Association (JAWRA) 50(2):343-357. DOI: 10.1111/jawr.12163, , , , , and ,
Discussions are open until six months from print publication.
- Issue online: 1 APR 2014
- Version of Record online: 1 APR 2014
- Manuscript Accepted: 12 SEP 2013
- Manuscript Received: 14 MAR 2013
- organic chemicals;
- transport and fate;
- field dissipation
In 2007, a 1.5-year field-scale study was initiated by the U.S. Geological Survey to evaluate the dissipation of contaminants of emerging concern (CECs) following a first agronomic biosolids application to nonirrigated farmland. CECs with the greatest decrease in concentration in the surface biosolids at 180 days post-application included indole, d-limonene, p-cresol, phenol, and skatol. CECs that were present in the largest concentration in 180-day-weathered biosolids included stanols, nonylphenols, bisphenol A, bis(2-ethylhexyl) phthalate, hexahydrohexamethyl cyclopenta-benzopyran (HHCB), and triclosan. CECs that were detected in pre-application soil were 3-beta coprostanol, skatol, acetophenone, beta-sitosterol, beta-stigmastanol, cholesterol, indole, p-cresol, and phenol, most of which are biogenic sterols or fragrances that have natural plant sources in addition to anthropogenic sources, yet their concentrations increased (in some cases, substantially) following biosolids application. Preliminary data indicate the nonylphenols (including NPEO1, NPEO2), OPEO1, benzo[a]pyrene, diethyl phthalate, d-limonene, HHCB, triclosan, and possibly 3-beta coprostanol, skatol, beta-sitosterol, cholesterol, indole, and p-cresol, migrated downward through the soil by 468 days post-application, but indicated little uptake by mature wheat plants. This study indicates that some CECs are sufficiently persistent and mobile to be vertically transported into the soil column following biosolids applications to the land surface, even in semiarid regions.