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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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). EPA will publish and take public comment on a Problem Formulation document for 1-BP which will refine the current scope, as an additional interim step, prior to publication the draft risk evaluation. This problem formulation is expected to be released within approximately six months of publication of 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.