PEER REVIEW DRAFT - DO NOT CITE OR QUOTE Office of Chemical Safety and Pollution Prevention Draft Risk Evaluation for 1-Bromopropane (1-BP) Systematic Review Supplemental File: Data Extraction Tables for Fate and Transport Studies August 2019 United States Environmental Protection Agency 1 ------- PEER REVIEW DRAFT - DO NOT CITE OR QUOTE Table of Contents Table 1. Biodegradation Study Summary for 1-Bromopropane 3 Table 2. Photolysis Study Summary for 1-Bromopropane 4 Table 3. Hydrolysis Study Summary for 1-Bromopropane 4 2 ------- PEER REVIEW DRAFT - DO NOT CITE OR QUOTE Table 1. Biodegradation Study Summary for 1-Bromopropane Study Type (year) Initial Concentration Inoculum Sou rcc (An)acrobic Status Du ration Result Comments HERO ID Data Quality Rating Water Other; Acinetobacter sp. Strain GJ70 is isolated from activated sludge and its ability to degrade bromopropane by releasing Br- is demonstrated. 2mM activated sludge, industrial (adaptation not specified) aerobic 6 days Initial concentration of bromopropane was 2 mM. Final concentration was <0.0005 mM after 6 days in this pure culture study. 2228540 High Other; Dehalogenation of hydrophobic bromoalkanes by two Pseudomonas strains Not reported Other; pure culture study aerobic 4-6 hours Growth of Pseudomonas bacterial strains ES-1 and ES-2 with corresponding Br- release reported. 4140374 High OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I)); MITI tests results compared to CATABOL biodegradability prediction model Not reported activated sludge, non- adapted aerobic 28 days 70% in 28 days based on biochemical oxygen demand (BOD). The CATABOL prediction was 21% in 28 days. 2990985 Medium Other; this study is a review focusing on the dehalogenation of brominated aliphatic compounds by bacteria containing dehalogenase enzymes. 1- bromopropane is included and shown to be degraded by strain ES-2. No methodology for the new data is presented. Not reported Other: bacteria containing dehalogenase enzymes Not reported Not reported The data from this study is presented with detailed methodology in Shochat E etal. 1993. "Bromoalkane- Degrading Pseudomonas Strains" (HERO ID: 4140374) This study is a review article with limited details reported. 1737896 Low 3 ------- PEER REVIEW DRAFT - DO NOT CITE OR QUOTE Table 2. Photolysis Study Summary for 1-Bromopropane Study Type (year) Wavelength Range Duration Result Comments HERO ID Data Quality Rating Air Other; photolysis study of degradantofl- bromopropane 308 and 351 nm (laser); 300 to 400 nm (fluorescent black lamps) Not applicable Lifetime for direct photolysis of analogue; Bromoacetone atmospheric photolysis lifetime is approximately hours at mid- latitudes in daytime 1733974 High Table 3. Hydrolysis Study Summary for 1-Bromopropane Study Type (year) pH Temperature Duration Results Comments HERO ID Data Quality Rating Other; review paper, includes calculation 7 298 K Not reported Hydrolysis half-life = 26 days [calculated directly from calculated kh, t(l/2) = 0.693/khl Article not useful without cited reference (Laughton, P.M., and Robertson, R.E., Can. J. Chem. 37,1491 (1959). 9848 Low 4 ------- |