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Development of Innovative Applications for Passive Sampling Devices

Development of Innovative Applications for Passive Sampling Devices
Author: Sarah E. Allan
Publisher:
Total Pages: 113
Release: 2011
Genre: Organic water pollutants
ISBN:
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Chemicals must be bioavailable for there to be a potential for exposure and consequent risk to human or environmental health. Passive sampling devices (PSDs) are used to quantify the time-integrated concentration of bioavailable contaminants. We demonstrate that PSDs can be paired with the zebrafish developmental toxicity bioassay to produce site-specific, temporally resolved information about the toxicity of environmental samples. Furthermore, modeling associations between the chemical components of environmental mixtures and the toxic outcomes they elicit can link bioactive compounds to biological effects. This research also shows that PSDs can be used as direct biological surrogates in a risk assessment model. We were able to determine spatial and seasonal variations in exposure and risk from the consumption of polycyclic aromatic hydrocarbons (PAH) in organisms from the Portland Harbor Superfund that were not detected in the Public Health Assessment for the area. Additionally, PSDs are a tool that we were able to rapidly deploy after the Deepwater Horizon oil spill. We quantified biologically relevant PAH contamination on a large spatial scale, over a long period of time when the chemicals of concern were present at relatively low dissolved concentrations, their impact on certain areas was sporadic and their presence and toxicological significance were not easily visualized. The research presented here can be applied to improve environmental monitoring, mixture toxicity assessment and risk assessment.

Passive Sampling Techniques in Environmental Monitoring

Passive Sampling Techniques in Environmental Monitoring
Author: Richard Greenwood
Publisher: Elsevier
Total Pages: 487
Release: 2007-07-03
Genre: Science
ISBN: 0080489508
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Monitoring pollutants in air, soil and water is a routine requirement in the workplace, and in the wider environment. Passive samplers can provide a representative picture of levels of pollutants over a period of time from days to months by measuring the average concentrations to which they have been exposed. Air monitors are widely used, for instance to measure the exposure of workers to volatile compounds, but also for monitoring the fate of pollutants in the atmosphere. Passive sampling devices are now becomining increasingly used to monitor pollutants in rivers, coastal waters and ground water where contamination results from sources such as domestic and industrial discharges, and the use of agrochemicals. Passive Sampling Techniques in Environmental Monitoring provides a timely collection of information on a set of techniques that help monitor the quality of air, surface and ground waters. Passive sampling can provide an inexpensive means of obtaining a representative picture of quality over a period of time, even where levels of pollutants fluctuate due to discontinuous discharges or seasonal application of chemicals such as pesticides. Recent changes in legislation have increased the pressure to obtain better information than that provided by classical infrequent spot sampling.Brought together in one source, this book looks at the performance of a range of devices for the passive sampling of metals, and of non-polar and polar organic chemicals in air and in water. The strengths and weaknesses and the range of applicability of the technology are considered. * Comprehensive review of passive sampling - covering air, water and majority of available technologies in one volume* Chapters written by international specialist experts * Covers theory and applications, providing background information and guidelines for use in the field

Environmentally Friendly (Bio)Technologies for the Removal of Emerging Organic and Inorganic Pollutants from Water

Environmentally Friendly (Bio)Technologies for the Removal of Emerging Organic and Inorganic Pollutants from Water
Author: Eldon R. Rene
Publisher: IWA Publishing
Total Pages: 230
Release: 2019-08-15
Genre: Technology & Engineering
ISBN: 1789061016
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This book highlights the impacts of emerging pollutants (both organic and inorganic) in water bodies and the role and performances of different water and wastewater treatment approaches that are presently being employed in the field of environmental engineering. Some of these approaches are focused on ‘end-of-pipe’ treatment, while most of these approaches are focused on the application of novel physic-chemical and biological techniques for wastewater treatment and reuse. The goal of this book is to present the emerging technologies and trends in the field of water and wastewater treatment. The papers in this book provide clear proof that environmentally friendly (bio)technologies are becoming more and more important and playing a critical role in removing a wide variety of organic and inorganic pollutants from water. In Focus – a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.

Industrial Development of Taiwan

Industrial Development of Taiwan
Author: Gee San
Publisher: Routledge
Total Pages: 287
Release: 2021-04-19
Genre: Business & Economics
ISBN: 1000375609
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Before the arrival of the twenty-first century, Taiwan was widely regarded as a successful model of a country which had not only transformed herself from an underdeveloped economy into a high-tech industrialised island, but had also undergone a revolution from an authoritarian regime to a democratic one. Taiwan is now experiencing a significant economic slowdown and facing multifaceted challenges including low productivity, stagnant innovation culture of small and medium-sized enterprises, ageing population, sustainable energy mix, pension reform, upgrading of human resources, devising competition policy to provide incentives for innovation as well as to limit abuses from monopolies, warding off competition from countries with lower labour cost and managing complicated cross-Strait relationship with China. The edited book looks at Taiwan’s past successful development model, summarises Taiwan’s current situation, outlines the future challenges beyond the year 2020 and provides policy recommendations in the aforementioned aspects. The contributors of this volume are accomplished veteran scholars in the fields. Several of them used to be policy-makers at the level of ministers or deputy ministers. The book offers not only academic contribution but policy-relevant insights.

Design and Development of Nanostructured Thin Films

Design and Development of Nanostructured Thin Films
Author: Antonella Macagnano
Publisher: MDPI
Total Pages: 386
Release: 2020-05-13
Genre: Technology & Engineering
ISBN: 3039287389
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Due to their unique size-dependent physicochemical properties, nanostructured thin films are used in a wide range of applications from smart coating and drug delivery to electrocatalysis and highly-sensitive sensors. Depending on the targeted application and the deposition technique, these materials have been designed and developed by tuning their atomic-molecular 2D- and/or 3D-aggregation, thickness, crystallinity, and porosity, having effects on their optical, mechanical, catalytic, and conductive properties. Several open questions remain about the impact of nanomaterial production and use on environment and health. Many efforts are currently being made not only to prevent nanotechnologies and nanomaterials from contributing to environmental pollution but also to design nanomaterials to support, control, and protect the environment. This Special Issue aims to cover the recent advances in designing nanostructured films focusing on environmental issues related to their fabrication processes (e.g., low power and low cost technologies, the use of environmentally friendly solvents), their precursors (e.g., waste-recycled, bio-based, biodegradable, and natural materials), their applications (e.g., controlled release of chemicals, mimicking of natural processes, and clean energy conversion and storage), and their use in monitoring environment pollution (e.g., sensors optically- or electrically-sensitive to pollutants)

Small Business Innovation Research

Small Business Innovation Research
Author:
Publisher: DIANE Publishing
Total Pages: 116
Release: 1993-06
Genre: Small business
ISBN: 9781568066479
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The DOE invites small business firms with strong research capabilities in science or engineering to submit grant proposals, The program's goal is to stimulate technological innovation in the private sector.