Centre for Environmental and Marine Studies (CESAM), Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
Centre for Environmental and Marine Studies (CESAM), Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal.
Mar Pollut Bull. 2020 Oct;159:111522. doi: 10.1016/j.marpolbul.2020.111522. Epub 2020 Aug 6.
Airborne microplastics and microfibers are released from daily materials, contaminating both indoor and outdoor air. Sampling in Aveiro, Portugal, revealed concentrations of 6 fibers m, with more synthetic fibers found in outdoor than indoor (8.5% vs. 4.1%, n = 6), with variations in fiber characteristics between sampling periods. Suspected microplastics (<10 μm) also followed this trend (12 vs. 5 particles m). Synthetic fibers presented peculiar characteristics, with larger median sizes of 513 μm and 90% of lighter colors. Nonetheless, numerous fibers and suspected microplastics were found in field blanks, possibly from sampling contamination, reducing the reliability of results. Few previous works have reported field blanks so far, raising concerns about the quality of their results as well. Thus, quality assurance measures should be more strictly applied when working with airborne fibers and microplastics, while more research should focus on the factors involved in the variation of concentrations and characteristics of airborne fibers.
空气中的微塑料和微纤维会从日常材料中释放出来，污染室内和室外空气。在葡萄牙阿威罗的采样显示，浓度为 6 根/立方米，室外的合成纤维比室内多（8.5%比 4.1%，n=6），采样期间纤维特征存在差异。疑似微塑料（<10μm）也呈现出这种趋势（12 比 5 个颗粒/立方米）。合成纤维具有特殊的特征，中值尺寸较大，为 513μm，且 90%为浅色。尽管如此，在现场空白样本中仍发现了大量纤维和疑似微塑料，可能来自采样污染，降低了结果的可靠性。到目前为止，很少有之前的工作报告过现场空白样本，这引起了人们对其结果质量的关注。因此，在处理空气中的纤维和微塑料时，应更严格地应用质量保证措施，同时应更多地研究影响空气中纤维浓度和特征变化的因素。
