Fig. 4-5. Sum Pyrethroid Toxic Units

<p>Sum pyrethroid pesticides expressed as toxic units (the potential for a pyrethroid pesticide to cause toxicity). This dataset was created for the 2019 Water Quality Status Report. It was compiled using 2008-2017 data from the <a href="https://www.waterboards.ca.gov/water_issues/programs/swamp/spot/">Stream Pollution Trends (SPoT) Monitoring Program</a>, part of the Surface Water Ambient Monitoring Program at the State Water Resources Control Board.</p>