Department of Chemistry, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil.
Vicepresidencia de Investigación, Universidad Nacional Intercultural de la Selva Central Juan Santos Atahualpa, La Merced, Perú.
Bull Environ Contam Toxicol. 2021 Jul;107(1):84-91. doi: 10.1007/s00128-021-03185-9. Epub 2021 Apr 30.
Vehicles are quite possibly the main sources of particulate matter, and their emissions can cause damage to surrounding ecosystems. Traditional atmospheric monitoring, however, is expensive. Therefore, airborne biomonitoring is an alternative method that allows for air quality assessment. In this study, we evaluated air quality at a federal highway (BR-040) close to Atlantic Rainforest remnants by quantifying metals in biomonitor tissues by ICP-MS. Tillandsia usneoides and Tillandsia stricta plants were relocated to the investigation zone and collected after five months of exposure. Metal concentration profiles were evaluated using statistical analyses, namely exposure-to-reference (ER) ratios and enrichment factors (EF). Results indicate that V, Cr, Fe, Cu, Zn and Sn enrichment were observed in all study sites. The EF for Cr, Mn, Pb, Ni, Co, Cu, Zn, Cd, and Sn ranged from high to very high, indicating anthropogenic sources. Both species were effective atmospheric biomonitors, proving to be an important tool, mainly in areas where conventional monitoring is not possible.
车辆可能是颗粒物的主要来源，其排放物会对周围生态系统造成损害。然而，传统的大气监测成本高昂。因此，空气生境监测是一种替代方法，可以评估空气质量。在这项研究中，我们通过电感耦合等离子体质谱法（ICP-MS）定量测定生物监测组织中的金属，评估了靠近大西洋雨林残余的联邦公路（BR-040）的空气质量。将Tillandsia usneoides 和 Tillandsia stricta 植物重新安置到调查区域，并在暴露五个月后进行收集。使用统计分析，即暴露-参考（ER）比值和富集因子（EF）评估金属浓度分布。结果表明，在所有研究地点均观察到 V、Cr、Fe、Cu、Zn 和 Sn 的富集。Cr、Mn、Pb、Ni、Co、Cu、Zn、Cd 和 Sn 的 EF 从高到非常高，表明人为来源。两种物种都是有效的大气生物监测器，是一种重要的工具，特别是在常规监测不可能进行的地区。
