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Assessing and Managing Chemicals under TSCA

Risk Evaluation for 1-Bromopropane (1-BP)

1-Bromopropane (1-BP) is a chemical used as a solvent in spray adhesives and dry cleaning, and as a degreaser. 1‑BP is primarily used as a solvent cleaner in vapor and immersion degreasing operations to clean optics, electronics and metals, but it has also been reported to be used as a solvent in industries using aerosol-applied adhesives such as foam cushion manufacturing. Other uses such as lubricant, refrigerant, and non-pesticidal agricultural uses have also been reported.

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Problem Formulation for 1-BP Risk Evaluation under Amended TSCA

This problem formulation refines the scope of the 1-BP risk evaluation by clarifying the chemical uses that EPA expects to evaluate and describing how EPA expects to conduct the evaluation. This is an important interim step prior to completing and publishing the final risk evaluation. The problem formulation document will be available for comment until August 16, 2018 in the docket listed above.

Scope of 1-BP Risk Evaluation under Amended TSCA

This scope document includes the hazards, exposures, conditions of use, and the potentially exposed or susceptible subpopulations EPA expects to consider in its risk evaluation of 1-BP conducted pursuant to TSCA Section 6(b)(4). 

After releasing the scope documents, the dockets for each of the first 10 chemicals were open for public comments. Read EPA’s Responses to Public Comments Received on the Scope Documents for the First Ten Chemicals for Risk Evaluation under TSCA. This document addresses cross-cutting public comments received in response to EPA publishing the scope documents.

Review of 1-BP Prior to the Lautenberg Act

Prior to the Lautenberg Act, EPA completed a draft risk assessment for 1-BP, addressing occupational and consumer uses in spray adhesives, dry-cleaning (including spot cleaners), and degreasing operations and published the following information.