Abstract A comparison was made between the relative performance of active and passive sampling methods for the analysis of 1,3-butadiene in outdoor air. Active and passive sampling was conducted using multi-sorbent bed tubes (Carbotrap, Carbopack X, Carboxen 569) and RAD141 Radiello® diffusive samplers (filled with Carbopack X), respectively. Daily duplicate samples of multi-sorbent bed tubes were taken over a period of 14 days (9 + 5 days) at El Morell (Tarragona, Spain), near the petrochemical area. As 1,3-butadiene is a reactive pollutant and can be rapidly oxidized, half of the samplers were equipped with ozone scrubbers. Samples consisted in two tubes connected in series (front and back) to allow the determination of breakthrough. Quadruplicate samples of Radiello® tubes were taken over a period of 14 days (9 days and 5 days), too. During those days, ozone concentration was measured using RAD172 Radiello® samplers. In addition to this, daily duplicate samples of multi-sorbent bed tubes were taken in the city of Barcelona over a period of 8 days. Simultaneously, 4 samples of Radiello® tubes were exposed to outdoor air. Sampling was done throughout June and July 2017. Analysis was performed by thermal desorption coupled with gas chromatography/mass spectrometry. Analytical performance of the two sampling methods was evaluated by describing several quality assurance parameters, with results showing that performances are quite similar. They display low detection limits, good precision, linearity and desorption efficiency, low levels of blank values, and low breakthrough for multi-sorbent bed tubes. However, Radiello® samplers were not able to uptake episodic 1,3-butadiene high concentrations, leading to underestimation of real values. Hence, we can conclude that Radiello® samplers can be used for baseline 1,3-butadiene levels whereas multi-sorbent bed tubes would be advisable when relevant episodes are expected.

中文翻译：

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室外空气 1,3-丁二烯监测：Radiello ® 被动采样器和主动多吸附剂床管的性能比较

摘要 对室外空气中 1,3-丁二烯分析的主动和被动采样方法的相对性能进行了比较。主动和被动采样分别使用多吸附剂床管（Carbotrap、Carbopack X、Carboxen 569）和 RAD141 Radiello® 扩散采样器（填充 Carbopack X）进行。在石油化工区附近的 El Morell（西班牙塔拉戈纳），在 14 天（9 + 5 天）的时间里，每天采集重复的多吸附剂床管样品。由于 1,3-丁二烯是一种反应性污染物并且可以快速氧化，因此一半的采样器配备了臭氧洗涤器。样品由两个串联的管（前部和后部）组成，以测定穿透。同样在 14 天（9 天和 5 天）的时间内采集了四份 Radiello® 管样品。在那些日子里，臭氧浓度是使用 RAD172 Radiello® 采样器测量的。除此之外，在 8 天的时间里，每天在巴塞罗那市采集多吸附剂床管的重复样品。同时，将 4 个 Radiello® 管样品暴露在室外空气中。采样在整个 6 月和 2017 年 7 月进行。通过热解吸结合气相色谱/质谱法进行分析。通过描述几个质量保证参数来评估两种采样方法的分析性能，结果表明性能非常相似。它们显示出低检测限、良好的精度、线性和解吸效率、低水平的空白值以及多吸附剂床管的低穿透率。然而，Radiello® 采样器无法摄取情节 1，3-丁二烯浓​​度高，导致低估实际值。因此，我们可以得出结论，Radiello® 采样器可用于基线 1,3-丁二烯水平，而在预期相关事件时建议使用多吸附剂床管。