To examine the spatial and temporal concentrations of a controlled release larvicide in the discharge from municipal stormwater systems, an experiment was performed using standard concrete catch basins (CBs).  The experiment comprised triplicate CBs housed in a controlled indoor environment. Prior to initiating the experiment, actual catch basin sediment was placed into the CBs.  The CBs were then filled with river water, and the labeled dose of larvicide was applied. Simulated runoff events representing 0.10 in hr-1 storm events were discharged into each CB weekly.  Sub-hourly samples of the overflow exiting the CBs were collected and analyzed for larvicide concentration and are being used to determine mass transport and exposure patterns of the larvicide during the expected period of efficacy.

Examining mobility and residence time of a controlled release larvicide in stormwater catch basins using simulated runoff events

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.