LEPAE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
Chemosphere. 2011 Sep;85(2):247-52. doi: 10.1016/j.chemosphere.2011.06.005. Epub 2011 Jul 13.
Eight polybrominated diphenyl ethers (PBDEs) were determined in pine needles of three species (Pinus halepensis, Pinus pinea and Pinus nigra) collected in the NE Spain in an attempt to use this matrix for the biomonitoring of airborne PBDEs. The method used was based in ultrasonic extraction followed by alumina and Florisil clean-up and determination by gas chromatography coupled to mass spectrometry in negative chemical ionization. Recoveries were between 99% and 138%, limits of detection between 0.011 and 0.070 ng g(-1)-dw (0.232 ng g(-1)-dw for BDE 209) and repeatability lower than 13%. PBDE levels ranged between 0.027 ng g(-1)-dw and 13.04 ng g(-1)-dw, with predominance of BDE 209, followed by BDEs 47. P. halepensis was the species with the highest PBDE levels and P. nigra, the least, according to their widespread and remote distribution, respectively. The presence of PBDEs in pine needles was attributed to the release of in-use PBDEs, transport through atmosphere and adsorption upon lipid rich pine needles. Given the easy collection of pine needles, its ample distribution and its potential to accumulate airborne contaminants, this matrix is proposed as passive bio-sampler to be used in PBDE monitoring programs.
Pine needles can be used to biomonitor airborne PBDEs.
尝试使用该基质对空气传播的多溴二苯醚进行生物监测，在西班牙东北部采集了三种松树（欧洲赤松、油松和黑松）的针叶，测定了其中的 8 种多溴二苯醚（PBDEs）。所采用的方法基于超声波提取，然后用氧化铝和 Florisil 进行净化，并在负化学电离气相色谱-质谱联用仪中进行测定。回收率在 99%至 138%之间，检测限在 0.011 至 0.070ng g(-1)-dw（BDE 209 为 0.232ng g(-1)-dw）之间，重复性低于 13%。PBDE 水平在 0.027ng g(-1)-dw 至 13.04ng g(-1)-dw 之间，以 BDE 209 为主，其次是 BDEs 47。根据其广泛分布和偏远分布，欧洲赤松的 PBDE 水平最高，黑松最低。针叶中存在 PBDEs 归因于使用中的 PBDEs 的释放、通过大气的传输以及对富含脂质的针叶的吸附。鉴于针叶易于采集、分布广泛且有潜力积累空气传播的污染物，因此建议将其作为被动生物采样器用于 PBDE 监测计划。
针叶可用于生物监测空气中的多溴二苯醚。
