Passive Sampling System Articles & Analysis
24 articles found
In the quest for cleaner water and more accurate environmental monitoring, advancements in water sampling methods are essential. Among the latest breakthroughs, PTFE (polytetrafluoroethylene) tubing is proving to be a game-changer, setting new standards for efficiency, reliability, and precision in water ...
The selection of air quality monitors plays an elemental role in preparing preventive and protective action plans on regional as well as global scales. In 2019, Hindustan Times kindled a discussion on the rising number of non-attainment cities across the country. That is to say, a non-attainment city fails to comply with the Central Pollution Control Board (CPCB) standards. This noncompliance is ...
The Army Corps ESTCP study is the most extensive 3rd-Party evaluation of the Snap Sampler method completed to date. There are 5 complete reports and several presentations included here for free download. A Fact Sheet explaining results in a short synopsis is included ...
Gasmet gas analysis technology is enabling US health system provider Banner Health to test its clinical and non-clinical facilities more effectively, protecting employees and patients, improving work practices, and reducing costs. Recognized as one of the leading health systems in the US, nonprofit Banner Health is headquartered in Phoenix, Arizona and operates 29 hospitals - including three ...
It has been well proven that endocrine-disrupting chemicals (EDCs) can accumulate in river sediments. However, less is known about the possible remobilisation of sediment-bound EDC as a result of floods, bioturbation or dredging. A recent study, published in Elsevier’s Water Research journal focused on oestrogenic compounds accumulated in sediments along the German River Luppe – a ...
I started my PhD journey in 2016 at the Manchester Metropolitan University, under supervision by Dr Leon J. Clarke, Dr Konstantinos Tzoulas and Dr Gina Cavan. After developing a ‘passion’ for lichens during my undergraduate studies, I was able to work with these fascinating organisms again and further develop and improve skills in the field of geochemistry. This short blog provides ...
Water companies including South West, NI Water and United Utilities have previously used Chemcatcher® to target, refine and evaluate the impact of catchment management programmes aimed at reducing pesticide ingress into water abstraction sources, and we believe that the passive sampling system offers a continued solution to groups seeking to ...
Passive or Active Sampling Grab sampling though is very labor-intensive and large numbers of samples may be necessary to accurately characterise a site. One alternative to this is to use continual monitoring where a device is placed in situ and can continually collect samples that can then be analysed later. ...
For decades, Sigma-Aldrich has been a key supplier of innovative & high technology air monitoring products for various areas of gas/air sampling. Enclosed, you will find an overview on new and interesting devices to improve or simplify your air sampling. Supelco and Sigma-Aldrich offer a range of active and passive air sampling products, in addition to various analytical chemistry tools ...
This volume features Air Monitoring products that are used the petrochemical industry to ensure worker and community safety. Supelco's air monitoring products are useful for sampling of indoor (workplace) air and ambient air for a wide variety of analytes, such as aldehydes, volatile organic chemicals (VOC), benzene, toluene, ethyl benzene and xylene (BTEX) and other polyaromatic compounds ...
To examine effects of municipal wastewater effluent (MWWE) on sentinel organisms, the authors deployed caged freshwater mussels (Lasmigona costata) in the Grand River (ON, Canada) upstream and downstream of an MWWE outfall. Passive sampling devices were deployed alongside caged mussels to confirm exposure. Biomarkers of xenobiotic biotransformation, oxidative stress, estrogenicity, and ...
It is generally accepted that “dissolved” concentrations of contaminants in sediment pore water (Cfree) provide a more relevant exposure metric for risk assessment than do total concentrations. Passive sampling methods (PSMs) for estimating Cfree offer the potential for cost‐efficient and accurate in situ characterization of Cfree for inorganic sediment contaminants. In contrast to the PSMs ...
We investigated coupling passive sampling technologies with ultraviolet irradiation experiments to study polycyclic aromatic hydrocarbon (PAH) and oxygenated PAH (OPAH) transformation processes in real‐world bioavailable mixtures. Passive sampling device (PSD) extracts were obtained from coastal waters impacted by the Deepwater Horizon oil spill and Superfund sites in Portland, OR. OPAHs were ...
The aim of this study was to investigate how different strategies for monitoring of stormwater quality (combining a model with field sampling) affect the information obtained about MP discharged from the monitored system. A dynamic stormwater quality model was calibrated using MP data collected by automatic volume-proportional sampling and ...
Contaminants enter marine and estuarine environments and pose a risk to human and ecological health. Recently, passive sampling devices have been utilized to estimate dissolved concentrations of COCs, such as polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). In the present study, the performance of three common passive samplers was evaluated for sampling PAHs and ...
Measuring dissolved concentrations of emerging contaminants, such as polybrominated diphenyl ethers (PBDEs) and triclosan, can be challenging due to their physicochemical properties resulting in low aqueous solubilities and association with particles. Passive sampling methods have been applied to assess dissolved concentrations in water and sediments primarily for legacy contaminants. Although ...
The Biological Response Indicator Devices Gauging Environmental Stressors (BRIDGES) is a bioanalytical tool that combines passive sampling with the embryonic zebrafish developmental toxicity bioassay to provide a quantitative measure of the toxicity of bioavailable complex mixtures. Passive sampling devices (PSDs), which sequester and concentrate bioavailable organic contaminants from the ...
The use of passive sampling devices (PSDs) for monitoring hydrophobic organic contaminants in aquatic environments can entail logistical constraints that often limit a comprehensive statistical sampling plan, thus resulting in a restricted number of samples. The present study demonstrates an approach for using the results of a ...
Such regular practice in the Grenland fjord system in the south of Norway has the potential to affect the fate, movement, and bioavailability of sediment‐associated polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs). A novel mode of exposing passive sampling devices consisting of towing semipermeable membrane devices attached to the ...
The recently adopted sediment quality assessment framework for evaluating bay and estuarine sediments in the state of California incorporates bulk sediment chemistry as a key line of evidence (LOE) but does not address the bioavailability of measured contaminants. Thus, the chemistry‐based LOE likely does not provide an accurate depiction of organism exposure in all cases, nor is it particularly ...