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Environmental fate of monosodium methanearsonate (MSMA)—Part 1: Conceptual model 甲烷胂酸钠(MSMA)的环境归宿--第 1 部分:概念模型。
IF 3 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-25 DOI: 10.1002/ieam.4961
Michal Eldan, Yoko Masue-Slowey
{"title":"Environmental fate of monosodium methanearsonate (MSMA)—Part 1: Conceptual model","authors":"Michal Eldan,&nbsp;Yoko Masue-Slowey","doi":"10.1002/ieam.4961","DOIUrl":"10.1002/ieam.4961","url":null,"abstract":"<p>Monosodium methanearsonate (MSMA), the sodium salt of monomethylarsonic acid (MMA), is used as a selective, broad-spectrum contact herbicide to control weeds in cotton and a variety of turf. In water, MSMA dissociates into ions of sodium (Na<sup>+</sup>) and of MMA<sup>−</sup>, which is the herbicide's active component. Certain soil microorganisms can methylate MMA to dimethylarsinic acid (DMA) other microorganisms can demethylate MMA to inorganic arsenic (iAs). To predict the groundwater concentration of iAs that may result from MSMA application, the processes affecting the environmental behavior of MSMA must be quantified and modeled. There is an extensive body of literature regarding the environmental behavior of MSMA. There is a consensus among scientists that the fate of MMA in soil is controlled by microbial activity and sorption to solid surfaces and that iAs sorption is even more extensive than that of MMA. The sorption and transformation of MMA and its metabolites are affected by several factors including aeration condition, temperature, pH, and the availability of nutrients. The precise nature and extent of each of these processes vary depending on site-specific conditions; however, such variability is constrained in typical MSMA use areas that are highly managed. Monomethylarsonic acid is strongly sorbed on mineral surfaces and becomes sequestered into the soil matrix. Over time, a greater portion of MMA and iAs becomes immobile and unavailable to soil microorganisms and to leaching. This review synthesizes the results of studies that are relevant for the behavior of MSMA used as a herbicide to reliably predict the fate of MSMA in its use conditions. <i>Integr Environ Assess Manag</i> 2024;20:1859–1875. © 2024 The Author(s). <i>Integrated Environmental Assessment and Management</i> published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology &amp; Chemistry (SETAC).</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 6","pages":"1859-1875"},"PeriodicalIF":3.0,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ieam.4961","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Environmental fate of monosodium methanearsonate (MSMA)—Part 2: Modeling sequestration and transformation 甲烷胂酸钠(MSMA)的环境归宿--第 2 部分:螯合和转化模型。
IF 3 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-25 DOI: 10.1002/ieam.4962
W. Martin Williams, J. Mark Cheplick, Stuart Z. Cohen, Michal Eldan, Cornelis G. Hoogeweg, Yoko Masue-Slowey, Raghu Vamshi
{"title":"Environmental fate of monosodium methanearsonate (MSMA)—Part 2: Modeling sequestration and transformation","authors":"W. Martin Williams,&nbsp;J. Mark Cheplick,&nbsp;Stuart Z. Cohen,&nbsp;Michal Eldan,&nbsp;Cornelis G. Hoogeweg,&nbsp;Yoko Masue-Slowey,&nbsp;Raghu Vamshi","doi":"10.1002/ieam.4962","DOIUrl":"10.1002/ieam.4962","url":null,"abstract":"<p>Monosodium methanearsonate (MSMA), a sodium salt of monomethylarsonic acid (MMA), is a selective contact herbicide used for the control of a broad spectrum of weeds. In water, MSMA dissociates to ions of sodium (Na<sup>+</sup>) and monomethylarsonate (MMA<sup>−</sup>) that is stable and does not transform abiotically. In soils characteristic of MSMA use, several simultaneous processes can occur: (1) microbial methylation of MMA to dimethylarsinic acid (DMA), (2) microbial demethylation of MMA to inorganic arsenic (iAs), (3) methylation of iAs to MMA, and (4) sorption and sequestration of MMA and its metabolites to soil minerals. Sequestered residues are residues that cannot be desorbed from soil in environmental conditions. Sequestration is rapid in the initial several days after MSMA application and continues at a progressively slower rate over time. Once sequestered, MMA and its metabolites are inaccessible to soil microorganisms and cannot be transformed. The rate and extent of the sorption and sequestration as well as the mobility of MMA and its metabolites depend on the local edaphic conditions. In typical MSMA use areas, the variability of the edaphic conditions is constrained. The goal of this research was to estimate the amount of iAs potentially added to drinking water as a result of the use of MSMA, with models and scenarios developed by the US Environmental Protection Agency for pesticide risk assessment. In this project, the estimated drinking water concentrations (EDWCs) for iAs were assessed as the average concentration in the reservoir over a 30-year simulation with annual applications of MSMA at maximum label rates. When the total area of suitable land was assumed to be treated, EDWCs ranged from &lt;0.001 to 0.12 µg/L. When high estimates of actually treated acreage are considered, the EDWCs are below 0.06 µg/L across all scenarios. <i>Integr Environ Assess Manag</i> 2024;20:2076–2087. © 2024 The Author(s). <i>Integrated Environmental Assessment and Management</i> published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology &amp; Chemistry (SETAC).</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 6","pages":"2076-2087"},"PeriodicalIF":3.0,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ieam.4962","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Household dog fecal composting: Current issues and future directions 家用狗粪堆肥:当前问题和未来方向。
IF 3 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-24 DOI: 10.1002/ieam.4970
Emily Bryson, Amie Anastasi, Lisa Bricknell, Ryan Kift
{"title":"Household dog fecal composting: Current issues and future directions","authors":"Emily Bryson,&nbsp;Amie Anastasi,&nbsp;Lisa Bricknell,&nbsp;Ryan Kift","doi":"10.1002/ieam.4970","DOIUrl":"10.1002/ieam.4970","url":null,"abstract":"<p>Dog feces are a known source of nutrient, pathogen, and plastic pollution that can harm human and ecosystem health. Home composting may be a more environmentally sustainable method of managing dog feces and reducing this pollution. While composting is an established method for recycling animal manures into low-risk soil conditioners for food production, few studies have investigated whether household-scale compost methods can safely and effectively process dog feces for use in backyard edible gardens. A broad range of literature on in situ composting of dog feces is evaluated and compared according to scale, parameters tested, and compost methods used. Studies are analyzed based on key identified knowledge gaps: appropriate compost technologies to produce quality soil conditioner on small scales, potential for fecal pathogen disinfection in mesophilic compost conditions, and biodegradation of compostable plastic dog waste bags in home compost systems. This review also discusses how existing methods and quality standards for commercial compost can be adapted to dog fecal home composting. Priorities for future research are investigation of household-scale aerobic compost methods and potential compost amendments needed to effectively decompose dog feces and compostable plastic dog waste bags to produce a good-quality, sanitized, beneficial soil conditioner for use in home gardens. <i>Integr Environ Assess Manag</i> 2024;20:1876–1891. © 2024 The Author(s). <i>Integrated Environmental Assessment and Management</i> published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology &amp; Chemistry (SETAC).</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 6","pages":"1876-1891"},"PeriodicalIF":3.0,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ieam.4970","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recovery of ecosystems pollution by contaminants of potential concern using phytoremediation techniques 利用植物修复技术恢复受潜在污染物污染的生态系统。
IF 3 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-24 DOI: 10.1002/ieam.4973
Arindam Ghosh, James Stening, Rahul Chakraborty
{"title":"Recovery of ecosystems pollution by contaminants of potential concern using phytoremediation techniques","authors":"Arindam Ghosh,&nbsp;James Stening,&nbsp;Rahul Chakraborty","doi":"10.1002/ieam.4973","DOIUrl":"10.1002/ieam.4973","url":null,"abstract":"<p>Phytoremediation is a technology that uses plants to break down, remove, and immobilize contaminants in surface water, shallow groundwater, and sediment to achieve cost savings compared with conventional treatments. This study describes a marshy land on an explosives manufacturing site in India that consistently reported elevated concentrations of nitrates, nitrites, ammonia, perchlorate, and lead (contaminants of potential concern—CoPC). The study also illustrates the potential for addressing the human health and environmental risks associated with the explosives manufacturing industrsy in India using innovative, sustainable, and carbon-neutral techniques. This work focuses on reconstructed marshy lands, desedimentation, microwatershed management, and phytoremediation using <i>Phragmites and Vetiveria</i> species (also known as vetiver) to reduce contaminants in surface water and groundwater, improve stormwater management and carbon capture, and increase natural capital like biodiversity. The results obtained during the trial indicate that the selected indigenous species are effective and can be used to remediate sediment and shallow groundwater for many CoPC in tropical climates. <i>Integr Environ Assess Manag</i> 2024;20:1987–2002. © 2024 SETAC</p>","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 6","pages":"1987-2002"},"PeriodicalIF":3.0,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applying Intelligent Control for the scale-up of advanced oxidation processes for treated wastewater 应用智能控制技术扩大废水处理高级氧化工艺的规模。
IF 3.1 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-19 DOI: 10.1002/ieam.4935
J. Daniel Velducea-Ruíz, Leonel E. Amabilis-Sosa, Guillermo J. Rubio-Astorga, Julio C. Picos-Ponce
{"title":"Applying Intelligent Control for the scale-up of advanced oxidation processes for treated wastewater","authors":"J. Daniel Velducea-Ruíz,&nbsp;Leonel E. Amabilis-Sosa,&nbsp;Guillermo J. Rubio-Astorga,&nbsp;Julio C. Picos-Ponce","doi":"10.1002/ieam.4935","DOIUrl":"10.1002/ieam.4935","url":null,"abstract":"","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 4","pages":"1191-1193"},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141418792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microplastics: A potential booster for PFAS in biosolids 微塑料:生物固体中 PFAS 的潜在助推器。
IF 3.1 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-19 DOI: 10.1002/ieam.4965
Samreen Siddiqui
{"title":"Microplastics: A potential booster for PFAS in biosolids","authors":"Samreen Siddiqui","doi":"10.1002/ieam.4965","DOIUrl":"10.1002/ieam.4965","url":null,"abstract":"&lt;p&gt;Imagine enjoying a refreshing glass of water, only to discover tiny plastic particles swirling within. This unsettling reality is becoming increasingly common as microplastics (MPs), plastic fragments smaller than a grain of rice (&lt;5 mm diam.), infiltrate our environment at an alarming rate. From the deepest trenches of the ocean to the peaks of mountains, these invisible invaders pose a significant potential threat to wildlife and even human health (Li et al., &lt;span&gt;2023&lt;/span&gt;; Zolotova et al., &lt;span&gt;2022&lt;/span&gt;). Microplastics are now recognized as a major contemporary global problem (Mitrano &amp; Wagner, &lt;span&gt;2021&lt;/span&gt;; Sendra et al., &lt;span&gt;2021&lt;/span&gt;), with a current estimate of 1.5 million tons of MP waste in the waterways globally (Boucher &amp; Friot, &lt;span&gt;2017&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;Per- and polyfluoroalkyl substances (PFAS), often referred to as “forever chemicals” due to their persistence in the environment, present a hidden threat to human health (Fenton et al., &lt;span&gt;2021&lt;/span&gt;). These man-made chemicals, lauded for their water and stain-repelling properties, lurk unseen in a vast array of consumer products. However, their presence comes at a cost. Most recently (January 2024) method 1633, which created a stable and uniform approach for the analytical identification of PFAS, was approved by USEPA to identify 40 PFAS compounds. On 10 April 2024, the USEPA announced the final National Primary Drinking Water Regulation (NPDWR) for six PFAS (PFOA, PFOS, PFHxS, PFNA, PFBS, and HFPO-DA). This enables USEPA to establish legally enforceable levels, called Maximum Contaminant Levels, for six PFAS in drinking water.&lt;/p&gt;&lt;p&gt;In addition to being a primary source of pollution, MPs can also act as a carrier (via sorption and desorption) for other contaminants including PFAS. Some of the plastic types, including polytetrafluoroethylene and polyvinyl fluoride, can contribute PFAS directly to the environment. However, this is a very small contribution compared with the potential adsorption pathway via widespread MP pollution globally. This does not disregard PFAS concerns, as some authors have suggested (Lohmann et al., &lt;span&gt;2020&lt;/span&gt;). Rather, MPs might also increase the overall availability of PFAS in biosolids. As MPs degrade, they could release any absorbed PFAS, making them more bioavailable (available for uptake by organisms).&lt;/p&gt;&lt;p&gt;There are also concerns that MPs can be more efficient in adsorbing PFAS in the presence of other organic and inorganic matter, when compared with controlled environments, due to their large surface area and strong hydrophobic nature (Scott et al., &lt;span&gt;2021&lt;/span&gt;). The adsorption of PFAS to MPs was identified as thermodynamically spontaneous due to the increased entropy at 25 °C, based on Gibb's free energy (Δ&lt;i&gt;G&lt;/i&gt; = −16 to −23 kJ/mol), reaching equilibrium within 7–9 h (Salawu et al., &lt;span&gt;2024&lt;/span&gt;). This suggests that PFAS may partition to the MP surface within a few hours in fresh and marine wate","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 4","pages":"912-913"},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ieam.4965","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141418794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sediment assessment, management, and regulation in the 21st century 21 世纪的沉积物评估、管理和法规。
IF 3.1 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-19 DOI: 10.1002/ieam.4949
Richard J. Wenning, Sabine E. Apitz
{"title":"Sediment assessment, management, and regulation in the 21st century","authors":"Richard J. Wenning,&nbsp;Sabine E. Apitz","doi":"10.1002/ieam.4949","DOIUrl":"10.1002/ieam.4949","url":null,"abstract":"&lt;p&gt;Nearly 20 years ago, SETAC published the results of a Pellston Workshop on methods for assessing and setting sediment quality guidelines (SQGs) and associated tools (Wenning et al., &lt;span&gt;2004&lt;/span&gt;). This was done to compile the state of science describing the harmful effects of chemical contaminants in sediments on freshwater and marine aquatic life. Since then, there have been significant advances in sediment ecotoxicology, monitoring methods, and risk assessment practices, as well as management strategies. The definition of “sediment quality” has also evolved and now encompasses more than just toxicity. It considers the chemical and physical characteristics of sediment that contribute to the health of aquatic ecosystems, including the quality of overlying waters and aquatic food chains. Advances have been made in the interpretation of the ecosystem services both provided and affected by sediments (Apitz, &lt;span&gt;2012&lt;/span&gt;), as well as environmental baseline values used to identify the nature and extent of environmental changes outside the range of natural variability (Brown et al., &lt;span&gt;2022&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;While sediment sampling methods have changed little over the years, the methods for analyzing and interpreting various biological, chemical, and physical parameters used to evaluate sediment risk have advanced considerably (Bruce et al., &lt;span&gt;2021&lt;/span&gt;). Broader and smarter sediment screening methods and advanced analytical chemistry and assessment methodologies capable of providing insights into the drivers of sediment toxicity offer some relief to traditional limitations of sediment quality investigations (Brennan et al., &lt;span&gt;2021&lt;/span&gt;; de Baat et al., &lt;span&gt;2019&lt;/span&gt;; Feiler et al., &lt;span&gt;2013&lt;/span&gt;). Nanosensors and new analytical methods are available for assessing biological contamination, nanopollution, and new and/or emerging chemical substances in sediments and surface waters to support management activities that protect aquatic life and human health (Hairom et al., &lt;span&gt;2021&lt;/span&gt;). Passive sampling, toxicity identification evaluation methods, and omics-based eco-surveillance tools have matured considerably and provide data that inform sediment assessment, regulation, and management (Heise et al., &lt;span&gt;2020&lt;/span&gt;; Li et al., &lt;span&gt;2018&lt;/span&gt;; Shah et al., &lt;span&gt;2019&lt;/span&gt;). New methods involving measurements of e-DNA and e-RNA and other molecular biomonitoring tools, less intrusive passive samplers to measure contaminants in sediment porewater, and the determination of metrics of biotic and ecological integrity (e.g., taxonomic richness, composition, and tolerance and/or intolerance indices) provide indispensable information for managing aquatic ecosystems more effectively (Anaisce et al., &lt;span&gt;2023&lt;/span&gt;; Giroux et al., &lt;span&gt;2022&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;At the same time, climate change and a relatively new suite of “emerging” contaminants, such as microplastics, nanoparticles, substances in personal care and pharma","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 4","pages":"905-907"},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ieam.4949","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141418795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Books and Other Reviews 书籍和其他评论
IF 3.1 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-19 DOI: 10.1002/ieam.4951
{"title":"Books and Other Reviews","authors":"","doi":"10.1002/ieam.4951","DOIUrl":"https://doi.org/10.1002/ieam.4951","url":null,"abstract":"","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 4","pages":"1196-1203"},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141430259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Toward a life cycle approach for classifying the toxicity of refrigerants 采用生命周期方法对制冷剂的毒性进行分类。
IF 3.1 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-19 DOI: 10.1002/ieam.4964
Federico Sinche Chele, Louise Stevenson, Christian Mark Salvador, Fred Dolislager, Teresa Mathews
{"title":"Toward a life cycle approach for classifying the toxicity of refrigerants","authors":"Federico Sinche Chele,&nbsp;Louise Stevenson,&nbsp;Christian Mark Salvador,&nbsp;Fred Dolislager,&nbsp;Teresa Mathews","doi":"10.1002/ieam.4964","DOIUrl":"10.1002/ieam.4964","url":null,"abstract":"&lt;p&gt;The American Society of Heating Refrigerating and Air-Conditioning Engineers (ASHRAE) classifies the safety of refrigerants based on their flammability and toxicity. Toxicity classifications are based on Occupational Exposure Limits (OEL), which estimate industry workers' exposure conditions and frequency (ASHRAE, &lt;span&gt;2013&lt;/span&gt;, &lt;span&gt;2019&lt;/span&gt;). Using these exposure limits and acute toxicity exposure limit values set to prevent danger to life or health, the toxicity classifications are based on a threshold, where Class A (lower toxicity) is assigned when the OEL is higher than 400 ppm while Class B (higher toxicity) refrigerants have OELs below this threshold (ASHRAE, &lt;span&gt;2013&lt;/span&gt;). In general, refrigerants are not considered to be highly toxic compounds. Table 1 shows that the most commonly used hydrofluoroolefin (HFO) refrigerants are in Class A1, which is an indication of lower toxicity for mammals (“A”) and no flame propagation (“1”) (ASHRAE, &lt;span&gt;2013&lt;/span&gt;). Nevertheless, it is important to point out that this toxicity classification only pertains to the parent compound and not necessarily to the precursors used in refrigerant manufacturing or the degradation products resulting from refrigerant emissions or use. Furthermore, the fully fluorinated methyl group (-CF3) in HFOs has prompted their classification as per- and polyfluoroalkyl substances (PFAS) in the United States and Europe (Table 1).&lt;/p&gt;&lt;p&gt;The newest classes of refrigerants, hydrofluorocarbons (HFCs) and HFOs or halogenated olefins are currently in use due to their low global warming potentials (GWPs) and negligible ozone depletion potentials (ODPs). The addition of hydrogen in HFCs and a double bond in HFOs have helped lower their GWPs. For example, the double bond in HFOs is highly reactive with atmospheric hydroxyl (OH) radicals, which leads to their short atmospheric lifetimes and low GWP. However, because these compounds degrade quickly, they have the potential to create significant yields of various degradation products. One of the most well-known degradation products, particularly from HFCs (e.g., R-227ea) and HFOs (e.g., R-1234yf), is trifluoroacetic acid (TFA), whose classification as an ultrashort PFAS is under considerable debate (Table 1). This classification has policy implications as both the European Commission and the USEPA have signaled their commitments to systematically decrease the usage of PFAS compounds (Glüge et al., &lt;span&gt;2020&lt;/span&gt;). Scientific arguments have been made to manage all PFAS compounds together as a chemical class because of their common characteristics of being highly persistent, bioaccumulative, and potentially hazardous (Kwiatkowski et al., &lt;span&gt;2020&lt;/span&gt;). Trifluoroacetic acid is the simplest of the perfluorocarboxylic acid (PFCA) group of substances (Burkholder et al., &lt;span&gt;2015&lt;/span&gt;) and is generally regarded to be highly persistent in the environment, toxic at elevated concentrations, and bioaccumulative dependin","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 4","pages":"908-911"},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ieam.4964","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141418796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Announcing the IEAM Best Paper Award 2023 宣布 2023 年国际工程师教育协会(IEAM)最佳论文奖。
IF 3.1 4区 环境科学与生态学
Integrated Environmental Assessment and Management Pub Date : 2024-06-19 DOI: 10.1002/ieam.4950
{"title":"Announcing the IEAM Best Paper Award 2023","authors":"","doi":"10.1002/ieam.4950","DOIUrl":"10.1002/ieam.4950","url":null,"abstract":"&lt;p&gt;The editors of &lt;i&gt;Integrated Environmental Assessment and Management&lt;/i&gt; and the Society of Environmental Toxicology and Chemistry (SETAC) are pleased to announce the selection of Best Papers Published in 2023. The IEAM editors and the SETAC Publications Advisory Committee are committed to recognizing annually the contributions of scientists and researchers from academia, business, and government. The authors of nominated papers are recognized by their peers in the field for innovative analysis, state-of-the-science considerations, and earnest focus on solutions to the world's most difficult environmental challenges.&lt;/p&gt;&lt;p&gt;Methods for assessing the bioaccumulation of hydrocarbons and related substances in terrestrial organisms: A critical review. &lt;i&gt;19&lt;/i&gt;(6), 1433–1456. https://setac.onlinelibrary.wiley.com/doi/10.1002/ieam.4756&lt;/p&gt;&lt;p&gt;Frank A. P. C. Gobas, School of Resource and Environmental Management, Simon Fraser University, Burnaby, British Columbia, Canada&lt;/p&gt;&lt;p&gt;Yung-Shan Lee, School of Resource and Environmental Management, Simon Fraser University, Burnaby, British Columbia, Canada&lt;/p&gt;&lt;p&gt;Katharine M. Fremlin, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada&lt;/p&gt;&lt;p&gt;Stephanie C. Stelmachuk, School of Resource and Environmental Management, Simon Fraser University, Burnaby, British Columbia, Canada&lt;/p&gt;&lt;p&gt;Aaron D. Redman, ExxonMobil Biomedical Sciences, Annandale, New Jersey, USA&lt;/p&gt;&lt;p&gt;Identifying chemical substances with high bioaccumulation potential is crucial for regulating their environmental release and protecting ecosystems and human health. However, the methods currently used for regulatory bioaccumulation assessments are not always suitable for evaluating air-breathing organisms. To address this gap, Gobas et al. (2023) investigate and review both existing and new approaches for assessing the terrestrial bioaccumulation potential of hydrocarbons and related organic substances. Their comprehensive critical review systematically presents the merits and limitations of various approaches to bioaccumulation assessment and their relevance to current regulatory practices. To further the field, Gobas et al. propose a four-tier evaluation scheme to minimize effort and costs while expediting the bioaccumulation assessment of the vast numbers of organic substances that are manufactured and subsequently in circulation. The authors state it best, “The findings of the review are meant to help navigate a path forward for bioaccumulation assessment of substances that is better positioned to assess the bioaccumulation of hydrocarbons and related organic compounds in terrestrial wildlife.”&lt;/p&gt;&lt;p&gt;Staveley, J. P., Freeman, E. L., McArdle, M. E., Ortego, L. S., Coady, K. K., Bone, A., Lagadic, L., Weltje, L., Weyers, A., Wheeler, J. R. Current testing programs for pesticides adequately capture endocrine activity and adversity for protection of vertebrate wildlife. &lt;i&gt;Integrated Environmental Assessment and Ma","PeriodicalId":13557,"journal":{"name":"Integrated Environmental Assessment and Management","volume":"20 4","pages":"914"},"PeriodicalIF":3.1,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ieam.4950","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141418791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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