نتایج جستجو برای: passive sampler

تعداد نتایج: 74813  

Journal: :Environmental science. Processes & impacts 2016
Yueqin Dou Tian C Zhang Jing Zeng John Stansbury Massoum Moussavi Dana L Richter-Egger Mitchell R Klein

Pollution from highway stormwater runoff has been an increasing area of concern. Many structural Best Management Practices (BMPs) have been implemented for stormwater treatment and management. One challenge for these BMPs is to sample stormwater and monitor BMP performance. The main objective of this study was to evaluate the feasibility of using polyurethane foam (PUF) passive samplers (PSs) f...

Journal: :Environmental Science & Technology 2021

Extensive and long-term use of per- polyfluoroalkyl substances (PFASs) has caused their widespread distribution in aquatic systems. A new diffusive gradients thin-films (DGT) passive sampling method based on weak anion exchanger (WAX) binding layer is developed here for monitoring five perfluoroalkyl carboxylic acids (PFCAs), perfluoroalkanesulfonic (PFSAs) two PFASs (6:2 FTSA GenX) waters. Per...

Journal: :Fusion Engineering and Design 2021

Continuous measurement of tritium in the atmosphere is important to evaluate environmental impact nuclear facilities and fusion as well elucidate behavior environment. A passive type sampler powerful tool conduct long-term monitoring because this does not require any power supply. This paper demonstrated effectiveness for continuous characterized temporal variation atmospheric concentration tri...

Journal: :The Iowa Review 2001

Journal: :Aerobiologia 2021

Abstract In this study, we have compared time series of pollen concentration originating from two Hirst-type volumetric samplers that were equipped with different sampling heads. To collect airborne pollen, used classic sampler mobile head including wind vane and adapted fixed having two-layered inlet, like in Sigma-2 passive sampler. The devices placed at the roof level, on top building Facult...

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