Letter to the editor: Negative feasibility for 1-bromopropane and call for additional data.

The article focuses on the negative feasibility assessment for establishing a Biological Exposure Index (BEI) for 1-bromopropane, a chemical used in various industries, due to inadequate scientific data. Topics discussed include the call for additional data, the potential health risks associated with 1-bromopropane exposure, and the need for field or experimental studies to establish a BEI and improve risk management.