An improved method for the determination of 1,3-butadiene in nonoccupational environments
Despite health concerns regarding exposure to 1,3-butadiene, there is a dearth of validated methods for its determination in nonoccupational environments. A sampling and analytical methodology is validated for determining 1,3-butadiene in such environments. Samples were collected via sorbent tubes containing 1000 mg of Carbopack B and 150 mg of Carbosieve SIII and analyzed by TD (thermal desorption)-GC/MS. This sorbent combination was compared to that of 600 mg of Carboxen 569. When sampling for 2 h at 30 mL min{sup {minus}1}, 20 C and relative humidity 60%, Carbopack B/Carbosieve SIII gave 1,3-butadiene recoveries {gt} 95%, compared to ca. 60% for Carboxen 569. The combined sampling and analytical precision of Carbopack B/Carbosieve III was 13% at 0.17 {mu}g m{sup {minus}3}, with a detection limit {lt}0.16 {micro}g m{sup {minus}3}. Optimum sampling conditions were as follows: duration 2 h, flow rate 30 mL min{sup {minus}1}, maximum temperature 35 C. The impact on sampling efficiency of ozone concentrations and relative humidity was negligible. Simultaneous sampling with both Carboxen 569 alone and Carbopack B/Carbosieve SIII in a range of nonoccupational environments and sampling conditions revealed 1,3-butadiene concentrations to be 24--58% when the latter sorbent was used, suggesting that measurements made using carbon molecular sieve sorbents such as Carboxen 569 are underestimates.
- Research Organization:
- Univ. of Birmingham (GB)
- OSTI ID:
- 20006163
- Journal Information:
- Environmental Science and Technology, Journal Name: Environmental Science and Technology Journal Issue: 23 Vol. 33; ISSN ESTHAG; ISSN 0013-936X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Chemical cartridge respirator performance: 1,3-butadiene
Species differences in the metabolism and disposition of inhaled 1,3-butadiene and isoprene