Toxicology
Downloads folder for Toxicology
This document is a fact sheet that explains the changes to health-based values used to review air permits and air monitoring data.
This is the the recommended action regarding The TCEQ Executive Director's proposal to set a target cancer risk level of 1 in 100,000 (1 x 10-5) for setting screening levels that are used in TCEQ’s air permitting program and compared to ambient air monitoring data. This proposal is being directed to the Commission with the recommended action of posted for 30 days of public comment.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page contains public comments that were received regarding the TCEQ’s proposed response to the Sunset Advisory Commission’s management recommendation for TCEQ to implement regarding setting a target cancer risk level.
This page links to a Fact Sheet which summarizes information used by the TCEQ Toxicology Division to develop chemical specific toxicity values.
In the document “Reconsideration of the National Emission Standards for Hazardous Air Pollutants: Miscellaneous Organic Chemical Manufacturing Residual Risk and Technology Review” (FR 12/21/2022) the EPA (2022a) made several claims about TCEQ’s DSD published in May 2020. This document contains clarifications in response to comments made by EPA regarding TCEQ’s request for reconsideration of EPA’s risk assessment of ethylene oxide (EtO).
This document describes TCEQ policy regarding acceptable individual-chemical excess cancer risk (also known as target risk level) used in permitting and other regulatory actions.
Este documento contiene la versión en lenguaje sencillo (en español) de la respuesta del nivel objetivo de riesgo de cáncer a los comentarios del 9 de agosto de 2024.
This document contains the plain language version of the target cancer risk level response to comments dated August 9, 2024.
The document contains the Texas Commission on Environmental Quality Response to Public Comments on Sunset Management Recommendation 1.2: Commission Vote on Acceptable Level of Health-Based Risk