Evaluating Stormwater to Identify & Quantify Causal Toxins from Tire Degradants
For decades, scientists had been concerned about water quality impacts on Pacific Northwest coho salmon that returned from the Pacific Ocean to spawn in local streams and rivers. After rain events in the area, acute and widespread mortality of adult coho salmon in the streams occurred; this was subsequently called urban runoff mortality syndrome (URMS). The cause of this phenomena was unknown for many years with many regulated chemicals and pathogens ruled out as culprits.
This webinar will take you through the journey of researchers at the University of Washington successfully identifying the primary chemical cause of this mortality – 6PPD-quinone. 6PPD-quinone is an oxidation product of 6PPD, an industrial antioxidant compound commonly used in tires. Ed Kolodziej will go through how his team were the first to identify the emerging contaminant using effect-directed analysis workflows paired with a high-resolution LC-Q/TOF and software tools. He will also demonstrate the steps that the led to linking coho mortality to 6PPD and its degradation product 6PPD-quinone.
Following this, researchers at Vogon Laboratories will discuss developing a routine quantitative method on a liquid chromatograph coupled to a triple quadrupole mass spectrometer (LC/TQ) for analysis of 6PPD-quinone. This presentation describes a fast, direct-inject analytical method for the quantitation of 6PPD-quinone in surface water.
Key learning objectives:
- Data analysis workflows for water quality characterization in polluted environments
- Use of LC-Q/TOF and companion software to identify emerging contaminants in urban stormwater and receiving waters
- 6PPD-quinone survey results from real-world samples
Who should attend:
- Lab managers planning water analysis projects
- Researchers interested in LC/MS techniques to solve real-world problems
- Environmentalists concerned with levels of toxic contaminants
Presenter: Ed Kolodziej (Associate Professor, University of Washington)
Presenter: Ralph Hindle (President, Vogon Laboratory Services)
