LEPAE, Departamento de Engenharia Química, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal.
Arch Environ Contam Toxicol. 2010 Apr;58(3):631-47. doi: 10.1007/s00244-009-9462-0. Epub 2010 Jan 28.
Pine needle samples from two pine species (Pinus pinaster Ait. and Pinus pinea L.) were collected at 29 sites scattered throughout Portugal, in order to biomonitor the levels and trends of 16 polycyclic aromatic hydrocarbons (PAHs). The values obtained for the sum of all PAHs ranged from 76 to 1944 ng/g [dry weight (dw)]. Despite the apparent matrix similarities between both pine species, P. pinaster needles revealed higher mean entrapment levels than P. pinea (748 and 399 ng/g (dw) per site, respectively). The urban and industrial sites have the highest average of PAH incidence [for P. pinea, 465 and 433 ng/g (dw) per site, respectively, and for P. pinaster, 1147 and 915 ng/g (dw)], followed by the rural sites [233 ng/g and 711 ng/g (dw) per site, for P. pinea and P. pinaster, respectively]. The remote sites, both from P. pinaster needles, show the least contamination, with 77 ng/g (dw) per site. A predominance of 3-ring and 4-ring PAHs was observed in most samples, with phenanthrene having 30.1% of the total. Naphthalene prevailed in remote sites. Rainfall had no influence on the PAHs levels, but there was a relationship between higher wind speeds and lower concentrations. PAH molecular ratios revealed the influence of both petrogenic and pyrogenic sources.
从葡萄牙各地的 29 个地点采集了两种松树（欧洲赤松和油松）的松针样本，以生物监测 16 种多环芳烃（PAHs）的水平和趋势。所有 PAHs 的总和值范围为 76 至 1944 ng/g[干重（dw）]。尽管两种松树的基质相似，但欧洲赤松针的平均捕获水平高于油松（分别为 748 和 399 ng/g（dw）/点）。城市和工业区的 PAH 发生率最高[油松为 465 和 433 ng/g（dw）/点，欧洲赤松为 1147 和 915 ng/g（dw）/点]，其次是农村地区[油松和欧洲赤松分别为 233 ng/g 和 711 ng/g（dw）/点]。来自欧洲赤松针的偏远地区的污染最少，每个地点的含量为 77 ng/g（dw）。大多数样品中都观察到 3 环和 4 环 PAHs 的优势，其中菲占总量的 30.1%。在偏远地区，萘占主导地位。降雨量对 PAHs 水平没有影响，但风速越高，浓度越低。PAH 分子比值揭示了石油源和热解源的影响。
