Comparison of chemical contaminant measurements using CLAM, POCIS, and silicone band samplers in estuarine mesocosms

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Integrated Environmental Assessment and Management Pub Date : 2024-05-31 DOI:10.1002/ieam.4953

Ed Wirth, Brian Shaddrix, Emily Pisarski, Paul Pennington, Marie DeLorenzo, David Whitall

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Abstract

Discrete water samples represent a snapshot of conditions at a particular moment in time and may not represent a true chemical exposure caused by changes in chemical input, tide, flow, and precipitation. Sampling technologies have been engineered to better estimate time-weighted concentrations. In this study, we consider the utility of three integrative sampling platforms: polar organic chemical integrative sampler (POCIS), silicone bands (SBs), and continuous, low-level aquatic monitoring (CLAM). This experiment used simulated southeastern salt marsh mesocosm systems to evaluate the response of passive (POCIS, SBs) and active sampling (CLAM) devices along with discrete sampling methodologies. Three systems were assigned to each passive sampler technology. Initially, all tanks were dosed at nominal (low) bifenthrin, pyrene, and triclosan concentrations of 0.02, 2.2, and 100 µg/L, respectively. After 28 days, the same treatment systems were dosed a second time (high) with bifenthrin, pyrene, and triclosan at 0.08, 8.8, and 200 µg/L, respectively. For passive samplers, estimated water concentrations were calculated using published or laboratory-derived sampling rate constants. Chemical residues measured from SBs resulted in high/low ratios of approximately 2x, approximately 3x, and 1x for bifenthrin, pyrene, and triclosan. A similar pattern was calculated using data from POCIS samples (~4x, ~3x, ~1x). Results from this study will help users of CLAM, POCIS, and SB data to better evaluate water concentrations from sampling events that are integrated across time. Integr Environ Assess Manag 2024;20:1384–1395. © 2024 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).

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使用 CLAM、POCIS 和硅胶带采样器在河口中观模型中进行化学污染物测量的比较。

离散水样代表的是某一特定时刻的情况，可能并不代表由化学输入、潮汐、流量和降水量变化引起的真实化学接触情况。为了更好地估算时间加权浓度，我们对采样技术进行了改进。在本研究中，我们考虑了三种综合采样平台的实用性：极地有机化学综合采样器 (POCIS)、硅胶带 (SB) 和连续低浓度水生监测 (CLAM)。该实验使用模拟的东南盐沼中观宇宙系统来评估被动（POCIS、SBs）和主动采样（CLAM）装置以及离散采样方法的响应。每种被动采样器技术都分配了三个系统。最初，所有水箱中的联苯菊酯、芘和三氯生的标称（低）浓度分别为 0.02、2.2 和 100 微克/升。28 天后，对相同的处理系统进行第二次（高浓度）投放，联苯菊酯、芘和三氯生的浓度分别为 0.08、8.8 和 200 微克/升。对于被动采样器，估计的水体浓度是使用已公布的或实验室得出的采样率常数计算得出的。从 SB 中测量的化学残留物导致联苯菊酯、芘和三氯生的高/低比率分别为约 2 倍、约 3 倍和 1 倍。使用 POCIS 样品的数据也计算出了类似的模式（~4 倍、~3 倍、~1 倍）。这项研究的结果将帮助 CLAM、POCIS 和 SB 数据的用户更好地评估来自采样事件的跨时间综合水体浓度。Integr Environ Assess Manag 2024;00:1-12.© 2024 作者。综合环境评估与管理》由 Wiley Periodicals LLC 代表环境毒理学与化学学会 (SETAC) 出版。

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来源期刊

Integrated Environmental Assessment and Management ENVIRONMENTAL SCIENCESTOXICOLOGY&nbs-TOXICOLOGY

CiteScore

5.90

自引率

6.50%

发文量

156

期刊介绍： Integrated Environmental Assessment and Management (IEAM) publishes the science underpinning environmental decision making and problem solving. Papers submitted to IEAM must link science and technical innovations to vexing regional or global environmental issues in one or more of the following core areas: Science-informed regulation, policy, and decision making Health and ecological risk and impact assessment Restoration and management of damaged ecosystems Sustaining ecosystems Managing large-scale environmental change Papers published in these broad fields of study are connected by an array of interdisciplinary engineering, management, and scientific themes, which collectively reflect the interconnectedness of the scientific, social, and environmental challenges facing our modern global society: Methods for environmental quality assessment; forecasting across a number of ecosystem uses and challenges (systems-based, cost-benefit, ecosystem services, etc.); measuring or predicting ecosystem change and adaptation Approaches that connect policy and management tools; harmonize national and international environmental regulation; merge human well-being with ecological management; develop and sustain the function of ecosystems; conceptualize, model and apply concepts of spatial and regional sustainability Assessment and management frameworks that incorporate conservation, life cycle, restoration, and sustainability; considerations for climate-induced adaptation, change and consequences, and vulnerability Environmental management applications using risk-based approaches; considerations for protecting and fostering biodiversity, as well as enhancement or protection of ecosystem services and resiliency.