Measurements of the inherent optical properties of aqueous suspensions of microplastics

IF 5.1 2区 地球科学 Q1 LIMNOLOGY
Daniel Koestner, Robert Foster, Ahmed El-Habashi, Shea Cheatham
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引用次数: 0

Abstract

Libraries of inherent optical properties (IOPs) of microplastics are sparse, yet they are essential for the development of optical techniques to detect and quantify microplastics in the ocean. In this study, we describe our results and technique for the measurement of the IOPs of microplastic suspensions generated from commonly utilized plastics. The measurements included angle-resolved polarized light scattering, and spectral absorption and beam attenuation coefficients. We also performed ancillary characterization of particle properties, including size distribution, shape, and mass concentration of suspended matter. We observed several unique optical characteristics regarding absorption, scattering, and polarization properties compared with typical marine particle assemblages. We show that these results are useful for radiative transfer simulations as well as the potential development of novel plastic detection techniques from above- or in-water optical measurements.

Abstract Image

测量微塑料水悬浮液的固有光学特性
有关微塑料固有光学特性(IOPs)的资料库非常稀少,但它们对开发用于检测和量化海洋中微塑料的光学技术至关重要。在本研究中,我们介绍了测量由常用塑料生成的微塑料悬浮液的 IOPs 的结果和技术。测量包括角度分辨偏振光散射、光谱吸收和光束衰减系数。我们还对颗粒特性进行了辅助表征,包括悬浮物质的粒度分布、形状和质量浓度。与典型的海洋颗粒组合相比,我们在吸收、散射和偏振特性方面观察到了一些独特的光学特征。我们的研究表明,这些结果不仅有助于辐射传递模拟,还有助于通过水上或水中光学测量开发新型塑料检测技术。
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来源期刊
CiteScore
10.00
自引率
3.80%
发文量
63
审稿时长
25 weeks
期刊介绍: Limnology and Oceanography Letters (LO-Letters) serves as a platform for communicating the latest innovative and trend-setting research in the aquatic sciences. Manuscripts submitted to LO-Letters are expected to present high-impact, cutting-edge results, discoveries, or conceptual developments across all areas of limnology and oceanography, including their integration. Selection criteria for manuscripts include their broad relevance to the field, strong empirical and conceptual foundations, succinct and elegant conclusions, and potential to advance knowledge in aquatic sciences.
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