{"title":"CH<sub>4</sub> production potential of autotrophic nitrification bacteria produced in the submerged nitrification bioreactor in the laboratory and kinetic analysis.","authors":"Sukru Aslan, Ali Alhraishawi, Mustafa Ozturk","doi":"10.1080/09603123.2024.2374000","DOIUrl":"10.1080/09603123.2024.2374000","url":null,"abstract":"<p><p>In this study, CH<sub>4</sub> production capacity of nitrification bacteria (NB) obtained from the submerged biofilter in the laboratory was investigated. Biochemical methane potential (BMP) test was carried out with the NB amount of zero (control, CR), 5% (R1), 10% (R2), and 15% (R3) at a temperature of about 37 ± 0.5°C. Compared to the CR, significantly higher cumulative CH<sub>4</sub> volume of about 290, 490, and 715 mL were determined in the R1, R2, and R3, respectively. All the applied kinetic models gave good results (<i>R</i><sup>2</sup> ≥0.97), while the Transference Function and First-order models provided the better <i>R</i><sup>2</sup> values. The delay phase (<i>λ</i>) was not observed in the AD process, and CH<sub>4</sub> production started immediately on the first day of operation. The predicted <i>k</i> value of 0.133 day<sup>-1</sup> was high in CR, while it was approximately between 0.078 and 0.112 day<sup>-1</sup> for the higher amount of NB containing BMP units, which indicated that the AD required long reaction time.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"890-908"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaodi Dong, Jingcheng Yuan, Yexin Ju, Xun Zhu, Yuge Wang
{"title":"Pathways and mechanisms of health interventions in the waterfront-built environment of cold regions.","authors":"Xiaodi Dong, Jingcheng Yuan, Yexin Ju, Xun Zhu, Yuge Wang","doi":"10.1080/09603123.2025.2454359","DOIUrl":"10.1080/09603123.2025.2454359","url":null,"abstract":"<p><p>Urban waterfront-built environments in cold regions are more conducive to public health than green spaces alone. However, their failure to meet health intervention expectations calls for further research to explore potential intervention pathways and mechanisms. This study conducted an in-depth investigation of Shenyang, a city in China's cold region. A mechanistic model was developed to examine the impact of cold urban waterfront environments on health in both seasons, employing perceived behavioural control in terms of behavioural predisposition, behavioural enablement, and behavioural reinforcement as mediating factors. The results indicated that the perceived behavioural control of predisposition-mediated health outcomes was highest in winter, whereas behavioural reinforcement was highest in summer, leading to targeted health behaviour interventions. Comparison of indirect effect values and factor loadings for perceived control of health behaviours were conducted to screen health-oriented indicators and strategies across seasons. These findings offer insights into urban regeneration and public health management.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"1111-1123"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143046594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Toxic metal levels in cow bulk milk, yoghurt, and kashk in southwest Iran: health risk assessment.","authors":"Maryam Montaseri, Alireza Zakeri, Hanieh Amininezhad, Saeid Hosseinzadeh","doi":"10.1080/09603123.2025.2486599","DOIUrl":"https://doi.org/10.1080/09603123.2025.2486599","url":null,"abstract":"<p><p>This study assessed lead (Pb), cadmium (Cd), and copper (Cu) concentrations in bulk milk tanks (<i>n</i> = 75) and dairy products, including yoghurt (<i>n</i> = 10) and kashk (<i>n</i> = 20) from southwestern Iran, using AA500FG flame and graphite atomic absorption spectrometer. Health risk was assessed (EDI, EWI, THQ), and (ILCR). The mean concentrations of Pb (0.017 mg/kg) and Cd (0.001 mg/kg) in raw milk samples did not exceed the maximum permissible limits (MPLs). However, 12/75 (16%) and 75/75 (100%) milk samples revealed Pb and Cu higher than the MPLs. The metal concentrations in the yoghurt samples were lower than the MPLs. All (100%) kashk samples interestingly contained Pb beyond the MPL, and 20% of the samples had higher levels of Cu than the MPL. Pb, Cd, and Cu concentrations in the kashk samples were significantly higher than those in the other samples (<i>p</i> < 0.05). EDI and EWI values were lower than PTDI and PTWI values in all samples. There were no carcinogenic or non-carcinogenic health concerns in adults or children. This study clarified the importance of Pb and Cu metals in raw milk and kashk products from Fars, Iran, and highlighted the more probable role of polluted environment.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"1-13"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143752520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Naseem Akhtar, Arifa Tahir, Moneeza Abbas, Nasib Zaman, Abdul Qadir, Muhammad Arshad
{"title":"Temporal trends in indoor bioaerosols: implications for dental healthcare environments.","authors":"Naseem Akhtar, Arifa Tahir, Moneeza Abbas, Nasib Zaman, Abdul Qadir, Muhammad Arshad","doi":"10.1080/09603123.2024.2373173","DOIUrl":"10.1080/09603123.2024.2373173","url":null,"abstract":"<p><p>Antibiotic resistance, a significant public health hazard, is predicted to cause 10 million deaths worldwide by 2050. The study aimed to identify culturable bioaerosols in the indoor air of dental units in Lahore and assess their antibiotic resistance. Air samples were collected from 10 dental unit locations at different distances, with average concentrations of fungi and bacteria falling within intermediate ranges, per the Global Index of Microbial Contamination (GIMC/m3) index. The study found higher antibiotic-resistant strains in hospital dental units, particularly during winter. The most vigorous strain, <i>S.aureus</i>-NAJIH18, exhibited 70% resistance to ceftazidime. The research highlights the importance of quantifying microbial pollutants for evaluating their source and complexity. It suggests proactive mitigation techniques, such as focused cleaning and air filtration, to improve indoor air quality can mitigate the spread of antibiotic-resistant strains. These insights offer hope in combating the growing public health threat of antibiotic resistance.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"851-863"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141467858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juhi Aggarwal, Derek G Shendell, Kimberly T Nguyen, Midhat Rehman, Maryanne L Campbell
{"title":"Newer New Jersey work-based learning teachers during the COVID-19 pandemic: school safety regarding ventilation, trainings, and awareness of government agencies resources.","authors":"Juhi Aggarwal, Derek G Shendell, Kimberly T Nguyen, Midhat Rehman, Maryanne L Campbell","doi":"10.1080/09603123.2024.2378097","DOIUrl":"10.1080/09603123.2024.2378097","url":null,"abstract":"<p><p>New Jersey (NJ) Safe Schools Program (NJSS) provides code-required trainings for NJ teachers supervising students in work-based learning (WBL) experiences. During the COVID-19 pandemic, increased use of chemical cleaning, sanitization, and disinfectant products (CSDPs) led to ventilation and other health concerns. NJSS conducted two surveys of newer NJ WBL teachers between October 2021 and June 2023, with a follow-up in fall 2022 for those who completed initial surveys before summer 2022. This study focused on questions regarding workspace ventilation; respirator and CSDPs trainings; awareness of government resources for safety and health (S&H); and demographics. Over 65% of participant classrooms have operable windows or ventilation systems, while 13% of school salons have ceiling fans. Half of participants didn't receive training on handling CSDPs, although 90% were aware of government S&H resources. Data suggested teachers have well-ventilated workspaces and are aware of different resources available, which is important to continue post COVID-19.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"981-990"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arij Bouzaiene, Rim Ben Mansour, Mariem Ben Jemaa-Guirat, Imran Hammami, Darine Trabelsi, Kamel Msaada, Nehla Labidi
{"title":"Exploring the bioactive potential of dried fruit by-products: a focus on hazelnut, peanut, and almond teguments and shells.","authors":"Arij Bouzaiene, Rim Ben Mansour, Mariem Ben Jemaa-Guirat, Imran Hammami, Darine Trabelsi, Kamel Msaada, Nehla Labidi","doi":"10.1080/09603123.2024.2373174","DOIUrl":"10.1080/09603123.2024.2373174","url":null,"abstract":"<p><p>Dried fruits are renowned for their nutritional value, particularly their seeds. However, their skins, shells, and hulls also hold significant nutritional and commercial potential, yet remain largely unexplored for their bioactive compounds. This study examines the teguments and shells of three types of dried fruits - hazelnut, peanut, and two almond varieties. Ethanol extracts from these by-products reveal a variety of phytochemicals with antioxidant, antimicrobial, anti-inflammatory, and antiviral properties, confirmed through in vitro and in vivo assays. Teguments contain higher polyphenol levels compared to shells, with 24 compounds identified via HPLC analysis. The Achak almond tegument extract demonstrates strong antiradical activity, significant antimicrobial effects, and notable antiviral properties at a low concentration. Moreover, extracts from Achak almond tegument and hazelnut shells exhibit notable anti-inflammatory properties. This underscores the potential of utilizing dried fruit by-products to create innovative, value-added products, supporting environmental sustainability and boosting the competitiveness of the dried fruit industry.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"864-877"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141467856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bin Mao, Chuhong Luo, Shengnan Li, Jixin Zhang, Wanyun Xiang, Yi-de Yang
{"title":"Exposure to light at night (LAN) and risk of overweight/obesity, hypertension, and diabetes: a systematic review and meta-analysis.","authors":"Bin Mao, Chuhong Luo, Shengnan Li, Jixin Zhang, Wanyun Xiang, Yi-de Yang","doi":"10.1080/09603123.2024.2378941","DOIUrl":"10.1080/09603123.2024.2378941","url":null,"abstract":"<p><p>Current studies have presented conflicting findings regarding the associations between light at night (LAN) exposure and the risk of overweight/obesity, hypertension, and diabetes. Our study systematically summarized the evidence of the association between LAN exposure and the risk of overweight/obesity, hypertension, and diabetes. We searched five databases (PubMed, Web of Science, Embase, Scopus, and Cochrane) for observational studies published up to 1 August 2023. The pooled odds ratio (ORs) and 95% confidence intervals (CIs) were estimated by random-effects models for the association. Eighteen studies were included in the meta-analysis. Compared with the group with the lowest level of LAN, the group with the highest level of LAN is associated with an increased risk of overweight/obesity (pooled OR = 1.19, 95%CI: 1.13-1.26), hypertension (pooled OR: 1.86, 95% CI:1.28-2.72), and diabetes (pooled OR = 1.21, 95%CI: 1.07-1.31). Our meta-analysis demonstrated LAN exposure is associated with increased risk of overweight/obesity, hypertension, and diabetes.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"1003-1017"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141619936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mehdi Bahjati Ardakani, Mehdi Zare, Moayed Adiban, Rasul Nasiri, Hasti Daraei, Amirhossein Mahmoudizeh, Farshid Soleimani, Yadolah Fakhri, Amin Mousavi Khaneghah
{"title":"The concentration and probabilistic health risk assessment attribute to PAHs in indoor air of Hormozgan aluminum plant, Iran.","authors":"Mehdi Bahjati Ardakani, Mehdi Zare, Moayed Adiban, Rasul Nasiri, Hasti Daraei, Amirhossein Mahmoudizeh, Farshid Soleimani, Yadolah Fakhri, Amin Mousavi Khaneghah","doi":"10.1080/09603123.2024.2380003","DOIUrl":"10.1080/09603123.2024.2380003","url":null,"abstract":"<p><p>We measured PAHs concentrations to understand the potential short and long-term health risks to workers. In the anode cooking area, the lowest and highest concentrations of PAHs were found for DahA (dibenzo[a,h]anthracene) at 0.373 ± 0.326 µg/m3 and Chry (chrysene) at 1.923 ± 1.258 µg/m3, respectively. In the anode-making area, these concentrations were higher, with DahA at 0.435 ± 0.221 µg/m3 and Chry peaking at 3.841 ± 1.702 µg/m3. Risk assessment based on these concentrations indicates a hierarchical order of individual PAHs risks in the anode cooking area, led by BaP (benzo[a]pyrene), followed by other specific PAHs compounds. The total hazard quotient (THQ) for PAH exposure in both anode-making and cooking areas significantly exceeds the threshold for considered cancer risk, emphasizing the considerable danger to workers. This study underscores the urgent need to mitigate exposure to PAHs in industrial settings to protect worker health from the carcinogenic risks of such hazardous compounds.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"1044-1058"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141734077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Short-term associations between ambient PM<sub>1</sub>, PM<sub>2.5</sub>, and PM<sub>10</sub> and hospital admissions, length of hospital stays, and hospital expenses for patients with cardiovascular diseases in rural areas of Fuyang, East China.","authors":"Teng-Fei Dong, Wan-Qi Sun, Xing-Yang Li, Liang Sun, Huai-Biao Li, Ling-Li Liu, Yuan- Wang, Hong-Li Wang, Lin-Sheng Yang, Zhen-Qiu Zha","doi":"10.1080/09603123.2024.2380353","DOIUrl":"10.1080/09603123.2024.2380353","url":null,"abstract":"<p><p>Evidence on the impacts of PM1, PM2.5, and PM10 on the hospital admissions, length of hospital stays (LOS), and hospital expenses among patients with cardiovascular disease (CVD) is still limited in China, especially in rural areas. This study was performed in eight counties of Fuyang from 1 January 2015 to 30 June 2017. We use a three-stage time-series analysis to explore the effects of short-term exposure to PM1, PM2.5, and PM10 on hospital admissions, LOS, and hospital expenses for CVDs. An increment of 10 ug/m3 in PM1, PM2.5, and PM10 corresponded to an increment of 1.82% (95% CI: 1.34, 2.30), 0.96% (95% CI: 0.44, 1.48), and 0.79% (95% CI: 0.63%, 0.95%) in CVD hospital admissions, respectively. We observed that daily concentrations of PMs were associated with an increase in hospital admissions, LOS, and expenses for CVDs. Sustained endeavors are required to reduce air pollution so as to attenuate disease burdens from CVDs.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"1059-1071"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141748153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Medical waste management practices in primary, secondary, and tertiary hospitals in Anhui Province, China.","authors":"Yi-Yu Lyu, De-Quan Wu, Ruo-Jie Li, Xue-Ping Wang, Xiao-Qian Hu, Kai Huang, Xiang Yan, Xi-Yao Yang, Qiang Zhou, Yi-Le Wu","doi":"10.1080/09603123.2025.2486593","DOIUrl":"https://doi.org/10.1080/09603123.2025.2486593","url":null,"abstract":"<p><p>Improper medical waste management threatens public health and the environment. The objective of this study was to investigate the practices of medical waste management in different level hospitals. A multicenter study was conducted in 566 hospitals in Anhui Province, China. A self-designed online questionnaire was applied to collect the hospital's characteristics, amount and handling practices of medical waste, and occupational safety measures. The average generation rates of medical waste were 0.62 kg/bed, 0.43 kg/bed, and 0.46 kg/bed per day in tertiary hospitals, secondary hospitals, and primary hospitals, respectively. Different levels of hospitals varied in implementing medical waste management in regulations and processes, segregation, collection, transport, temporary storage centers, disposal, special medical waste, and disposal personnel's protective measures. Partial practices of medical waste management in some surveyed hospitals were not well performed, especially in primary hospitals. Hospitals should pay more attention to all processes of medical waste management, strengthen management of highly infectious and hazardous waste, and provide sufficient training and protective measures. Besides, effective policies are recommended for monitoring compliance with regulations and improving proper medical waste management.</p>","PeriodicalId":14039,"journal":{"name":"International Journal of Environmental Health Research","volume":" ","pages":"1-9"},"PeriodicalIF":2.2,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143763600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}