Concentrations and Loads of Trace Contaminants in a Small Urban Tributary, San Francisco Bay, California
Concentrations and Loads of Trace Contaminants in a Small Urban Tributary, San Francisco Bay, California. SFEI Contribution No. 650. SFEI: Richmond, CA. p 40.
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Urban runoff is a large and potentially controllable source of pollutants for San Francisco Bay and urban centers around the world. SFEI scientists conducted intensive measurements for suspended sediments and a range of trace organic pollutants in dry weather and storm flow runoff from a fully urban watershed. More than 91% of the loads for every pollutant measured were transported during storm events, along with 87% of the total water discharge.
![Storm Flow Sites](https://www.sfei.org/sites/default/files/styles/portfolio_sm/public/news/RMPPubStormFlows.jpg?itok=IWJ5iPfH)
Urban runoff is a large and potentially controllable source of pollutants to San Francisco Bay and many other urban aquatic ecosystems around the world. In a RMP study conducted in water years 2007-2010, SFEI scientists made intensive measurements for suspended sediments and a range of trace organic pollutants (PCBs, dioxins, PAHs, PBDEs, pyrethroids and OC pesticides) in dry weather and storm flow runoff from a fully urban watershed in Hayward.