Beyond the Tailpipe Research

As the project progresses, we will present descriptions of some of our experiments and data findings based on the four areas of investigation:

  • Group 1: Generation of tire and brake particles; development of approaches to probe their chemical composition and that of any associated gases; oxidation of those particles and gases and identification of oxidation products
  • Group 2: Toxicology, health effects, and population-level exposures
  • Group 3: Field measurements in Santa Ana
  • Group 4: Communities, dissemination, data management, and EJ policy formation

Group 1:

Generation of tire and brake particles; development of approaches to probe their chemical composition and that of any associated gases; oxidation of those particles and gases and identification of oxidation products

November 12, 2021:  Members of Group 1 did their first "truck experiment" with the goal of seeing if they could generate and capture VOCs from brakes, which they did!   Don Blake peeled out and drove doughnuts around Lot 12-A in his old truck while pressing the brakes, then the group took air samples and had some surprisingly good results. 

December 3, 2021:  After the first very rough try at investigating gases coming from Don's truck brakes, the experiment was repeated in the Rowland Hall loading dock area.  Additional equipment and more team members were added with some modifications to the collection process.  Between the canister measurements and PTR-MS, there are some intriguing, and as far as can be determined from literature, unique results. 
Read the article