Depositional characteristics of atmospheric polybrominated diphenyl ethers on tree barks.

Objectives: This study was conducted to determine the depositional characteristics of several tree barks, including Ginkgo (Ginkgo biloba), Pine (Pinus densiflora), Platanus (Platanus), and Metasequoia (Metasequoia glyptostroboides). These were used as passive air sampler (PAS) of atmospheric polybrominated diphenyl ethers (PBDEs).

Methods: Tree barks were sampled from the same site.

Relationship between PAHs Concentrations in Ambient Air and Deposited on Pine Needles.

Objectives: This study was carried out to determine whether or not pine needles can be used as passive samplers of atmospheric polycyclic aromatic hydrocarbons (PAHs) using the correlation between accumulated PAH concentrations in air (Ca, ng/m(3)) and those deposited on pine needles (Cp, ng/g dry).

Methods: PAHs in ambient air was collected using low volume PUF sampler and pine needles was gathered at same place for 7 months.

Results: good correlation (R(2)=0.

Concentration characteristics of atmospheric PCBs for urban and rural area, Korea.

Mean concentrations of total PCBs (gas+particle) detected in urban and rural atmospheres were 130.41+/-62.57 pg/m(3) and 39.