Targeted Treatment for a Toxic Tire Chemical (6PPD-Q)
Автор: Washington Stormwater Center
Загружено: 2025-10-17
Просмотров: 41
Timothy Clark, Herrera Environmental Consultants; Carly Greyell, King County Water and Land Resources Division
In this presentation, we will share the latest tools and studies that are preparing King County (in western Washington State) to address the harmful chemical from tires called 6PPD-quinone (6PPDQ). Through this work we are answering the questions: 1) Which road segments do we expect to deliver the most 6PPD-q to the stormwater network? and 2) Where should we prioritize treatment? King County and Herrera have developed an expert knowledge-based spatial model that classifies road segments by the relative expected amount of 6PPDQ delivered to the stormwater network. The model output is a cumulative score for each road segment across King County based on high-influence factors, including traffic intensity, types of vehicles, and the connectedness to the stormwater network. Output from this spatial model will be combined with additional spatial information, like nearby salmon habitat.
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