Journal of chemical health & safety最新文献_第10页

ZnO2/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene 用于检测三硝基甲苯的 ZnO2/CNT 纳米复合材料电化学传感器

Journal of chemical health & safety Pub Date : 2023-12-29 DOI: 10.1021/acs.chas.3c00096

Bharti Sharma, Shikha Jain, Sandeep Kumar and Neeraj Dilbaghi*,

{"title":"ZnO2/CNT Nanocomposite-Based Electrochemical Sensors for the Detection of Trinitrotoluene","authors":"Bharti Sharma, Shikha Jain, Sandeep Kumar and Neeraj Dilbaghi*, ","doi":"10.1021/acs.chas.3c00096","DOIUrl":"10.1021/acs.chas.3c00096","url":null,"abstract":"Global pollution of soil and water supplies due to the leftover dumping of nitroexplosives is a critical issue. Increasing mining and construction activity leads to a significant growth in the trinitrotoluene (TNT) market, making it a lethal contaminant that should be detected early to prevent consumption. Here, in this work, a highly sensitive voltammetric trinitrotoluene (TNT) sensor has been fabricated by modifying a gold electrode (AuE) with a ZnO2/carbon nanotube (CNT) nanocomposite (ZnO2/CNT@AuE). The ZnO2/CNT nanocomposite was synthesized by the coprecipitation method. Morphological and chemical analyses of the synthesized nanostructure was done through different high-end characterization techniques [Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM)]. The electrocatalytic reduction behavior of the electrochemical probe, ZnO2/CNT@AuE, toward TNT was studied in phosphate buffer solution (PBS, pH 7.0) using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. The ZnO2/CNT nanocomposite deposited on the electrode surface improves the conductivity and active sites for electrocatalytic reduction, significantly enhancing the designed sensor’s performance. The fabricated sensor exhibited an outstanding sensing performance and a rapid response when exposed to TNT with a higher sensitivity (80.53 μA cm–2 μM–1) and a lower detection limit (3.4 nM). In addition to the excellent efficacy, the newly developed sensor showed high reproducibility and long-term stability on repeated use. The sensor detects TNT over a wide linear range (4–500 nm) and has good anti-interference capabilities. The ZnO2/CNT@AuE probe has been applied successfully to detect TNT in real water samples. Moreover, electrochemical applications can be expanded by implementing the present electrochemical strategy.","PeriodicalId":73648,"journal":{"name":"Journal of chemical health & safety","volume":"31 1","pages":"85–97"},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139063856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spotlights: Historical Perspectives on Safety, Modernizing Safety Data Sheets, and Values-Based Safety Leadership 聚焦：安全的历史视角、安全数据表的现代化以及以价值观为基础的安全领导力

Journal of chemical health & safety Pub Date : 2023-12-28 DOI: 10.1021/acs.chas.3c00119

Lauren Goulding*,

引用次数: 0

The Gist of the List 清单要点

Journal of chemical health & safety Pub Date : 2023-12-28 DOI: 10.1021/acs.chas.3c00118

Lauren Goulding,

引用次数: 0

Signage to Indicate the Presence of Engineered Nanomaterials in the Workplace: Lessons from a Trial Study That Led to Implementation in a Worksite 指示工作场所存在工程纳米材料的标志:从一项导致在工作场所实施的试验研究中得到的教训

Journal of chemical health & safety Pub Date : 2023-11-29 DOI: 10.1021/acs.chas.3c00072

Kelly E. C. Cadieux, James H.-W. Zhou and Byron D. Gates*,

{"title":"Signage to Indicate the Presence of Engineered Nanomaterials in the Workplace: Lessons from a Trial Study That Led to Implementation in a Worksite","authors":"Kelly E. C. Cadieux, James H.-W. Zhou and Byron D. Gates*, ","doi":"10.1021/acs.chas.3c00072","DOIUrl":"10.1021/acs.chas.3c00072","url":null,"abstract":"Production and use of engineered nanomaterials have grown substantially in recent years, leading to an increased potential for occupational exposure to these materials. Health and safety data remain largely unknown or incomplete for most engineered nanomaterials. The management of possible risks associated with engineered nanomaterials in the workplace is of paramount importance for workers, employers, and occupational health and safety (OHS) professionals and is a complex and developing field of research. A key component of risk management is the effective communication of known and potential risks in the workplace. Many proposals and recommendations have been made for signage to warn of the location and use of engineered nanomaterials within occupational settings. Such signage could raise awareness and serve as a reminder of the potential unknown health and safety risks presented by engineered nanomaterials. We have designed a simple visual pictogram intended to indicate the presence of engineered nanomaterials in the workplace. Herein, we present our pictogram in contrast with those concomitantly identified in various scientific guidelines and literature, provide details on a pilot-scale evaluation of this signage administered before a recent institution-level adaptation, and provide recommendations for those interested in implementing this signage in other workplaces. Strengthening risk communication by adapting this visual warning pictogram could help draw attention to potential risks, improve workplace hygiene, and ideally, decrease occupational exposure for those working with engineered nanomaterials.","PeriodicalId":73648,"journal":{"name":"Journal of chemical health & safety","volume":"31 1","pages":"77–84"},"PeriodicalIF":0.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138533163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Legacy Contamination from Mercury Mining in the Fergana Valley Region of Central Asia 中亚费尔干纳河谷地区汞矿开采遗留污染

Journal of chemical health & safety Pub Date : 2023-11-28 DOI: 10.1021/acs.chas.3c00067

Alexander R. Pelletier*, Alexander V. Zhulidov, Alexander V. Kozhara, Ulmas Rakhmatov, Solijon M. Urmanov, Tatiana Yu. Gurtovaya, Igor V. Sheverdyaev, Richard D. Robarts, Daniel A. Zhulidov, Scott Zolkos, Evgenia A. Kalko, Yana A. Kuklina, Lyudmila S. Kosmenko, Timothy D. Jardine, Dilshod M. Mirzaev, Elmurodjon D. Abdisamatov and Igor K. Volkov,

{"title":"Legacy Contamination from Mercury Mining in the Fergana Valley Region of Central Asia","authors":"Alexander R. Pelletier*, Alexander V. Zhulidov, Alexander V. Kozhara, Ulmas Rakhmatov, Solijon M. Urmanov, Tatiana Yu. Gurtovaya, Igor V. Sheverdyaev, Richard D. Robarts, Daniel A. Zhulidov, Scott Zolkos, Evgenia A. Kalko, Yana A. Kuklina, Lyudmila S. Kosmenko, Timothy D. Jardine, Dilshod M. Mirzaev, Elmurodjon D. Abdisamatov and Igor K. Volkov, ","doi":"10.1021/acs.chas.3c00067","DOIUrl":"10.1021/acs.chas.3c00067","url":null,"abstract":"The toxic metal mercury (Hg) has been mined, processed, and used throughout the Fergana Valley region of post-Soviet Central Asia for millennia. Although most historical Hg mining activities have ceased throughout the Fergana Valley region, Hg is still mined, processed, and exported globally from the Khaidarkan kombinat in southwestern Kyrgyzstan. Despite the rich history of Hg mining and use throughout the Fergana Valley region, the legacy effects of these activities on environmental Hg contamination remain undescribed. Mercury concentrations were analyzed in topsoil, terrestrial vegetation, earthworms, riverine sediments, and fish collected from sites with varied histories of Hg mining within the Fergana Valley region. Environmental and biological Hg concentrations were greatest at contemporary mining sites where Hg has been mined after 1940, intermediate at ancient mining sites where all historical Hg mining activities ceased before 1300 AD, and lowest at reference sites without known Hg mining history. For all environmental media and biota, Hg concentrations were 1–2 orders of magnitude greater at contemporary mining sites than at reference sites. Elevated Hg concentrations at contemporary mining sites are attributed to the recency and intensity of Hg mining and showcase the detrimental effects of Hg mining on diverse environmental media and biota. Elevated Hg concentrations at ancient mining sites are attributed to a combination of (1) legacy Hg contamination in soils and sediments introduced by historical mining and processing activities over 700 years ago and (2) the presence of naturally Hg-rich geologic belts upon which ancient mines were constructed.","PeriodicalId":73648,"journal":{"name":"Journal of chemical health & safety","volume":"31 1","pages":"68–76"},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138533159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigative Analysis of Safety Risk Assessment at a Science and Technology University: Analysis of 2019 Risk Assessment and 2021 Actual Accidents 科技大学安全风险评估调查分析：2019 年风险评估和 2021 年实际事故分析

Journal of chemical health & safety Pub Date : 2023-11-14 DOI: 10.1021/acs.chas.3c00066

Hiroko Kato, Masako Iwasaki, Takayuki Sunazaki, Shinichi Daiten and Yukitoshi Takeshita*,

{"title":"Investigative Analysis of Safety Risk Assessment at a Science and Technology University: Analysis of 2019 Risk Assessment and 2021 Actual Accidents","authors":"Hiroko Kato, Masako Iwasaki, Takayuki Sunazaki, Shinichi Daiten and Yukitoshi Takeshita*, ","doi":"10.1021/acs.chas.3c00066","DOIUrl":"10.1021/acs.chas.3c00066","url":null,"abstract":"Our university has been conducting safety and health risk assessments in accordance with the Basic Health and Safety Policy established in 2005. In this context, a risk assessment of chemical substances has been in place. The implementation of chemical substance risk assessment became mandatory by Japanese law in FY 2016. At our university, the series of safety risk assessments has totaled approximately 6,500 cases. Of these, the most common damage predicted was “Fire” at around 16%, followed by “Burn” at about 13%, and “Chemical burn” at approximately 11%. Of the risk assessments in which “Fire” was the predicted damage, “Chemical substance” was the most frequently identified hazard. Specifically, around 40% of “Chemical substance” was “Flammable liquid”, about 30% was “Spontaneously combustible substance and water-prohibiting substance”, and approximately 9% was “Other hazardous material”. It should be noted that there was a negative association between the percentage of risk assessments performed and the percentage of actual accidents that occurred. That is, what is strongly recognized as a hazard in risk assessment tends to have fewer occurrences as an actual accident cause. As a rule, the identified hazard in the risk assessment and the main cause of the actual accident were consistent, and the risk assessment based on the assumption of several predictable types of damage from a single hazard could have been directly attributed to the prevention of actual accidents.","PeriodicalId":73648,"journal":{"name":"Journal of chemical health & safety","volume":"31 1","pages":"57–67"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.chas.3c00066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134957006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Gist of the List 清单要点

Journal of chemical health & safety Pub Date : 2023-11-09 DOI: 10.1021/acs.chas.3c00100

Lauren Goulding,

引用次数: 0

Toxicity, Hazards, and Safe Handling of Primary Aromatic Amines 初级芳香胺的毒性、危害和安全处理

Journal of chemical health & safety Pub Date : 2023-11-09 DOI: 10.1021/acs.chas.3c00073

Saba A. Gheni*, Mudheher M. Ali, Goh C. Ta, Hannah J. Harbin and Saad A. Awad,

{"title":"Toxicity, Hazards, and Safe Handling of Primary Aromatic Amines","authors":"Saba A. Gheni*, Mudheher M. Ali, Goh C. Ta, Hannah J. Harbin and Saad A. Awad, ","doi":"10.1021/acs.chas.3c00073","DOIUrl":"10.1021/acs.chas.3c00073","url":null,"abstract":"Aromatic amines (AAs) are an important class of organic compounds that find their application in various industries, such as dye production, rubber manufacturing, and pharmaceutical synthesis. Despite the various applications, they significantly harm human health and the environment. This article provides an overview of the toxicity, hazards, and safe handling of some primary aromatic amines (PAAs), focusing on representative examples, such as aniline, toluidine, nitroaniline, chloroaniline, and naphthylamine. The carcinogenicity and mutagenicity of PAAs are a matter of concern that impacts the health of workers who are occupationally exposed to such chemicals. Nonoccupational exposure to tobacco smoke and household products also causes health issues in elderly patients who remain indoors. Water and soil contamination by these pollutants adversely affects aquatic organisms and groundwater quality. Thus, proper handling and disposal protocols must be followed to minimize their impact on human health and the environment. Additionally, this review discusses the discrepancies between the European Union (EU) and Japan’s hazard categorization for aniline as a specific example. The information presented in this review emphasizes the importance of understanding toxicity, hazards, and safe handling practices associated with PAAs to ensure their responsible use and mitigate potential risks.","PeriodicalId":73648,"journal":{"name":"Journal of chemical health & safety","volume":"31 1","pages":"8–21"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135241734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spotlights: A Historical Risk Matrix Paper, VR Lab Safety Training, and a Systematic Approach for Identifying Unknown Assumptions 重点:历史风险矩阵论文，虚拟现实实验室安全培训，以及识别未知假设的系统方法

Journal of chemical health & safety Pub Date : 2023-11-07 DOI: 10.1021/acs.chas.3c00098

Lauren Goulding*,

引用次数: 0

Pharmaceuticals and Personal Care Products as Emerging Environmental Contaminants: Prevalence, Toxicity, and Remedial Approaches 药品和个人护理产品作为新兴的环境污染物:流行，毒性和补救方法

Journal of chemical health & safety Pub Date : 2023-11-03 DOI: 10.1021/acs.chas.3c00071

Aritra Chakraborty, Satadal Adhikary, Suchandra Bhattacharya, Sohini Dutta, Sovona Chatterjee, Diyasha Banerjee, Abhratanu Ganguly and Prem Rajak*,

{"title":"Pharmaceuticals and Personal Care Products as Emerging Environmental Contaminants: Prevalence, Toxicity, and Remedial Approaches","authors":"Aritra Chakraborty, Satadal Adhikary, Suchandra Bhattacharya, Sohini Dutta, Sovona Chatterjee, Diyasha Banerjee, Abhratanu Ganguly and Prem Rajak*, ","doi":"10.1021/acs.chas.3c00071","DOIUrl":"10.1021/acs.chas.3c00071","url":null,"abstract":"Pharmaceuticals and Personal Care Products (PPCPs) are synthetic compounds widely used as consumer items such as cosmetics and therapeutic drugs across the globe. The inappropriate disposal of PPCPs in the environment has raised serious concerns regarding their potential adverse impacts on human and animal health. Hence, the present study aims to delve into the environmental contamination of numerous PPCPs and their detrimental impacts on biota and climate change. Mining of data published in the relevant literature has revealed that active ingredients of PPCPs and their metabolites generally invade the ecosystem via multiple sources. Varying concentrations of these contaminants are reported in surface water, groundwater, and wastewater treatment plants. The majority of PPCPs pose acute and chronic toxicity to living organisms. They adversely affect the structure and function of the algal community along with the feeding, mating, metabolic activities, and reproductive behavior of invertebrates, fishes, and higher vertebrates, including humans. The occurrence of antibiotic resistance in bacterial populations as a response to PPCP contamination is another health concern. In addition, targeting mitochondrial respiratory proteins and cytochrome enzymes by PPCPs might contribute to the onset of multiple physiological ailments. Studies have deciphered the connection between PPCP contamination and methanogenesis, which could potentially impact climate change. Several degradation methods have been used for the removal of PPCPs. However, none of them completely remove the PPCPs from samples. Therefore, developing more advanced eco-friendly approaches is warranted for better treatment of PPCPs in water media. In addition, further investigations are required for the risk assessment of several PPCPs that have not yet been investigated.","PeriodicalId":73648,"journal":{"name":"Journal of chemical health & safety","volume":"30 6","pages":"362–388"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135819035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0