Monitoring of evaporating organochlorine compounds from compost and soil using semipermeable membrane device (SPMD)
- Umea Univ. (Sweden). Inst. of Environmental Chemistry
The organisms are exposed for contaminants in soil via skin uptake, gut uptake or inhalation. The compounds evaporating from the soil surface is easily sequestered with a SPMD deployed above the surface, In this case a 90 cm long 1 inch layflat polyethylene tubing filled with 1 mL triolein situated 15 cm above the ground were used. The SPMD were placed inside a semi-enclosed container with a bottom hole of 660 CM{sup 2} and a container volume of 13 dM{sup 3}. The final sample, were taken 28 days after deployment on the soil surface and the content of persistent compounds in the SPMD lipid (triolein) were used for the analysis using HRGC/LRMS. A limited clean up were required before analysis e.g. dialysis and HRGPC. Before GPC, labelled internal standards and before sample injection, labelled recovery standards were added. Several PCBs and other persistent OCs including DDTS, chlordane`s, hexachlorocyclohexanes, chlorobenzenes and dieldrin were monitored in this study. Since the air sampling rate of SPMD is approx. 10 m{sup 3} air per day essentially all air in the enclosure were continuously sampled during the 28 day sampling period. The sequestering of compounds in the SPMD will be compared with soil/compost concentrations for natural and spiked household compost matrices. Soil/compost extraction were performed with toluene in a Soxhlet apparatus followed by an extensive clean up. For surface soil monitoring, the study design including SPM D suggest to be an efficient and simple sampling and analysis methodology but still precise utilizing GC/MS as detector instrument.
- OSTI ID:
- 398251
- Report Number(s):
- CONF-9511137-; ISBN 1-880611-03-1; TRN: IM9649%%459
- Resource Relation:
- Conference: 2. Society of Environmental Toxicology and Chemistry (SETAC) world conference, Vancouver (Canada), 5-9 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of Second SETAC world congress (16. annual meeting): Abstract book. Global environmental protection: Science, politics, and common sense; PB: 378 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Monitoring of PCDDs, PCDFs and PCBs in the Fraser River, British Columbia using SPMD
Air-water gas exchange of organochlorine compounds in Lake Baikal, Russia