Jason R Vogel
Affiliation: U.S. Geological Survey
- Pesticides in rain in four agricultural watersheds in the United StatesJason R Vogel
U S Geological Survey, 5231 S 19th St, Lincoln, NE 68512, USA
J Environ Qual 37:1101-15. 2008..The mass of pesticides deposited by rainfall was estimated to be less than 2% of the total applied in these agricultural areas...
- Identifying fecal sources in a selected catchment reach using multiple source-tracking toolsJason R Vogel
USGS, 5231 S 19th St, Lincoln, NE 68512, USA
J Environ Qual 36:718-29. 2007..coli in watersheds. This is the first report of simultaneous, toolbox approach application of a library-based and marker-based MST analyses to flowing surface water...
- Using heat to characterize streambed water flux variability in four stream reachesHedeff I Essaid
U S Geological Survey, 345 Middlefield Rd, Menlo Park, CA 94025, USA
J Environ Qual 37:1010-23. 2008..Downward flux, in response to sudden high streamflows, and seasonal variability in flux was most pronounced in the humid basins and in high conductivity zones in the streambed...
- Transport and fate of nitrate at the ground-water/surface-water interfaceLarry J Puckett
U S Geological Survey, 413 National Center, Reston, VA 20192, USA
J Environ Qual 37:1034-50. 2008..Our results also show that in these low hydrologic-gradient systems, storm and other high-flow events can be important factors for increasing surface-water movement into streambeds...
- Pesticide fate and transport throughout unsaturated zones in five agricultural settings, USATracy C Hancock
U S Geological Survey, 1730 East Parham Road, Richmond, VA 23228, USA
J Environ Qual 37:1086-100. 2008..Flux estimates based on estimated recharge rates and measured concentrations were in agreement with fluxes estimated using an unsaturated-zone computer model (LEACHM)...
- Assessment of fecal pollution sources in a small northern-plains watershed using PCR and phylogenetic analyses of Bacteroidetes 16S rRNA geneRegina Lamendella
Department of Environmental Engineering, University of Cincinnati, Cincinnati, OH, USA
FEMS Microbiol Ecol 59:651-60. 2007..Moreover, additional data is needed in order to understand the distribution of Bacteroidetes host-specific markers and their relationship to water quality regulatory standards...