{"title":"Aflatoxin M1 Determination in Ice Cream Based on Immunoaffinity Column Clean-up Followed by HPLC-FLD","authors":"Soroush Rasolipanah, Halaleh Rasolipanah, Sirwan Mohammadiazar","doi":"10.32598/jaehr.10.3.1264","DOIUrl":"https://doi.org/10.32598/jaehr.10.3.1264","url":null,"abstract":"Background: Aflatoxin M1 (AFM1) in industrial ice cream was analyzed by immunoaffinity column (IAC) clean-up followed by high-performance liquid chromatography (HPLC) with a fluorescence detector (FLD) as a highly-sensitive method to confirm and quantify AFM1 in the ice cream samples. Methods: A total of 150 industrial ice cream samples were randomly collected from supermarkets in seven Iranian cities (Tehran, Tabriz, Karaj, Urmia, Sanandaj, Qazvin, and Khoramabad). Results: AFM1 was detected in more than 80.0% of samples. The average AFM1 concentration in ice cream was 29.79 ng/L. According to the results, in 12.62% of samples, AFM1 levels exceeded the maximum European Union (EU) limits for adults (50 ng/mL). This study recommends regular monitoring of AFM1 concentration in ice cream in Iran. Conclusion: Results of this study indicate the need to develop a database to assist law enforcement agencies, traders, and policymakers in local governments to minimize or prevent health-related risks caused by AFM1.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91361480","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}
N. Amanat, Ali Valinejadi, Younes Mehrifar, Mohsen Poursadeqiyan
{"title":"A Systematic Literature Review Protocol on Climate Change Perception Models","authors":"N. Amanat, Ali Valinejadi, Younes Mehrifar, Mohsen Poursadeqiyan","doi":"10.32598/jaehr.10.3.1254","DOIUrl":"https://doi.org/10.32598/jaehr.10.3.1254","url":null,"abstract":"The impacts of climate change can have many facets which are not directly felt. Climate change causes crucial political, economic, and social problems in our world. Inadequate public perceptions of climate change have resulted in little global response to climate change. This systematic review protocol examines existing perception models. First, we searched 3 databases, including PubMed, Scopus, and Web of Science, as well as Google Scholar as a search engine for all documents on the topic words “climate change”, “risk perception”, and “model” and their synonyms in medical subject headings (MESH). All types of journal articles were assessed. No date and language limitations were applied. The articles were evaluated by two independent persons. The results show that in recent years, the number of studies on climate risk perception across countries has increased compared to the total number of scientific publications. In addition, the number of climate change risk perceptions was higher than in other models. Our findings showed that until now, no systematic review has been conducted for models, features, and components of climate change perception. This is the first comprehensive study to assess climate change risk perception models (CCRPM). This study presents climate change perception models.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"125 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78471636","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}
Farhad Sharifee, L. Asadpour, S. Shariati, A. Salehzadeh
{"title":"Evaluation of Antibacterial Effect of Aqueous, Hydro- Alcoholic and Alcoholic Extracts of Morus nigra on Gram-Positive and Gram-Negative Bacteria","authors":"Farhad Sharifee, L. Asadpour, S. Shariati, A. Salehzadeh","doi":"10.32598/jaehr.10.3.1259","DOIUrl":"https://doi.org/10.32598/jaehr.10.3.1259","url":null,"abstract":"Background: Microbial resistance to antibiotics has led to serious efforts to discover novel drugs, which is why there is so much interest in the use of herbs. Therefore, the aim of this study was to investigate the antibacterial effect of aqueous, hydro-alcoholic, and alcoholic extracts of Morus nigra in comparison with some common antibiotics. Method: In this experimental study, the zone of inhibition, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the Morus nigra extracts against Staphylococcus epidermidis, Pseudomonas aeruginosa, Staphylococcus aureus, Streptococcus mutans and Streptococcus pyogenes were determined using the disk diffusion and broth macro-dilution methods. Statistical analysis was performed using the ANOVA test by SPSS software. Results: The results of this study showed that all studied strains were sensitive to different extracts of Morus nigra. The highest antibacterial effect was related to the aqueous extract of Morus nigra, which created an inhibition zone with a diameter of 22.25 against Streptococcus mutans and Streptococcus pyogenes. The lowest inhibition zone (9 mm) was related to the alcoholic extract of Morus nigra against Pseudomonas aeruginosa. The MIC values of different extracts of Morus nigra against test bacteria varied from 0.78 to 3.12 mg/ml and MBC values were between 3.12 and 50 mg/mL. Conclusion: Based on the findings of this study, the aqueous extract of Morus nigra has shown strong bactericidal properties against all studied bacterial strains, which indicates its potential for therapeutic application.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73843569","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}
{"title":"Risk Assessment of Household Gas Heaters in Tehran During an Earthquake Crisis by Using the Fuzzy FMEA Model","authors":"H. Hoveidi, M. Amiri, Reza Nesari","doi":"10.32598/jaehr.10.3.1251","DOIUrl":"https://doi.org/10.32598/jaehr.10.3.1251","url":null,"abstract":"Background: A variety of gas heaters are used in residential, administrative, and commercial buildings in Iran. Home packages (HP) and central heating boiler rooms (CHBRs) are among the most common types of heating systems that can be damaged during earthquakes and, thus, harm the building and the residents. Methods: By doing a survey and an interview in 50 residential buildings in District 16 of Tehran, the risks of these facilities were assessed during earthquakes from the viewpoint of the residents. To do the risk assessment, the failure mode and effects analysis (FMEA) model in the fuzzy space were applied. To analyze the risk priority number (RPN), defuzzification and the center of gravity method were used. Based on the results, 11 indicators were identified and evaluated for each system. Results: The mean RPNs obtained for both systems were almost equal (the difference was about 2%). Thus, no definitive superiority can be presumed for HP or CHBR when earthquakes happen. The major difference in the risk of each system can be separately evaluated based on the conditions of each building, confidence about the quality of installation, connections, pipe materials, electric wire corrosion, etc. Conclusion: It is suggested that the risks of CHBR and HP during earthquakes are the same, and some issues such as design, economy, and technical issues play a greater role in contractors’ selection of the system.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88353813","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}
R. Rezaee, Reza Rahimipour, A. Maleki, M. Safari, B. Shahmoradi, A. Jafari, S. Mousavi
{"title":"Evaluation of a Nanohybrid Membrane (PSF/ZnO) Efficiency in Natural Organic Matter Removal From Water","authors":"R. Rezaee, Reza Rahimipour, A. Maleki, M. Safari, B. Shahmoradi, A. Jafari, S. Mousavi","doi":"10.32598/jaehr.10.3.1286","DOIUrl":"https://doi.org/10.32598/jaehr.10.3.1286","url":null,"abstract":"Background: Natural organic matter (NOM) in drinking water sources has always been regarded as a precursor for the formation of trihalomethanes (THMs), haloacetic acids (HAAs), and carcinogenic properties. This study aimed to fabricate and characterize a nanohybrid ultrafiltration membrane (PSF/ZnO) to evaluate its efficiency in NOM removal from water. Methods: Nanohybrid membranes with ratios of 0, 1, 2, 3 and 4% w/w of ZnO nanoparticles (NPs) were fabricated using the phase inversion method and characterized by the contact angle, AFM, FTIR, and SEM analyses. In this study, the effects of initial humic acid (HA) concentration, operating pressure, pH, and filtration time were examined on the HA removal efficiency and pure water flux through the membrane. Results: The results showed that addition of the ZnO NPs to the PSF membrane reduced the contact angle on the PSF/ZnO nanohybrid membrane’s surface. According to FE-SEM images, increasing the ZnO concentration changed the porous structure of the membranes from a spongy, teardrop shape to a finger-like channel structure. The FTIR analysis revealed an increase in the hydrophilicity of the membrane due to the presence of hydroxyl functional groups in ZnO. AFM images indicated an increase in the surface roughness of nanoparticle-containing membranes. It was found that an increase in the concentration of the ZnO NPs (0-4% w/w) increased HA removal efficiency (43.63-83.4%). Conclusion: This study demonstrated that the use of the PSF/ZnO nanohybrid membranes increased HA removal efficiency and pure water flux passing through the membrane.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79817429","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}
M. Alimohammadi, S. Abolli, Esfandiar Ghordouei Milan
{"title":"Perceiving Effect of Environmental Factors on Prevalence of SARS-Cov-2 Virus and Using Health Strategies: A Review","authors":"M. Alimohammadi, S. Abolli, Esfandiar Ghordouei Milan","doi":"10.32598/jaehr.10.3.1266","DOIUrl":"https://doi.org/10.32598/jaehr.10.3.1266","url":null,"abstract":"Newly emerged SARS-CoV-2 virus has been identified in China since 2019 and is still progressing as a tense threat to the human health worldwide. This virus can cause an acute respiratory infection and lead to death under acute circumstances. To describe the environmental factors affecting the prevalence of the disease as well as make an appropriate health strategy, some databases were reviewed. Coronavirus is mainly transmitted by direct contact through respiratory droplets. It can also be transmitted through secondary routes such as air, close contact and contaminated surfaces. The transmission through food has not been conclusively proven, but there are concerns about the food preparation, storage, infected staffs and improper use of personal protective equipment as the source of infection. Some possible sources of transmission are the contaminated water and sewage, especially in the areas where patients have the symptoms of diarrhea and vomiting. In this study, we described the essential strategies in order to prevent the spread of COVID-19 disease. Based on the most important criteria, this study developed a prevention model and health strategy including updated training information, improvement programs, risk assessment, environmental monitoring, operational measures as well as supportive approaches and programs, which can be used step by step to reach a healthy environment, increase the compliance with protocols and, eventually, decrease the incidence of COVID-19.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89060538","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}
Shadi Ashraf Nohegar, A. Nejaei, E. Fataei, M. Ramezani, P. A. Eslami
{"title":"Evaluation of the Toxicity of Zinc Oxide Nanoparticles upon Staphylococcus Aureus and Escherichia Coliin Contaminated water","authors":"Shadi Ashraf Nohegar, A. Nejaei, E. Fataei, M. Ramezani, P. A. Eslami","doi":"10.32598/jaehr.10.3.1261","DOIUrl":"https://doi.org/10.32598/jaehr.10.3.1261","url":null,"abstract":"Background: Nanoparticles (NPs) have recently attracted extensive attention in the field of elimination and reduction of microbial load in various water resources. Accordingly, this study aimed to eliminate bacterial contamination from aqueous solutions using synthesized NPs. Methods: In the present study, zinc oxide (ZnO) and silver (Ag) ion-doped zinc oxide (Ag/ZnO, 1-6 wt%) nanoparticles were synthesized using the sol-gel process and then characterized in terms of structure, morphology, and antimicrobial activity. X-ray diffraction (XRD) was utilized to determine the nanoparticle size and crystal structure. Images from field emission-scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) confirmed the successful production of NPs. The antimicrobial activity of ZnO and Ag1-6%/ZnO against Staphylococcus aureus and Escherichia coli was assessed by the agar well diffusion method. Results: According to the findings, the synthesized ZnO had a hexagonal structure and the size of ZnO and Ag5%/ZnO were 32.56 nm and 12.81 nm, respectively; the field emission-scanning electron microscopy (FE-SEM) images showed that the nanoparticle sizes were 77.60 nm and 47.15 nm, respectively. Based on transmission electron microscopy (TEM) images, the mean size of ZnO and Ag5%/ZnO was 22.5 nm and 17.5 nm, respectively. The results showed that the diameter of the zone of inhibition created by Ag5%/ZnO at a concentration of 0.1 g/mL was 20 mm and 13 mm for S. aureus and E. coli, respectively. Conclusion: The results indicated that E. coli was more resistant than S. aureus, although E. coli was still more resistant at low concentrations.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76522899","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}
Leila Taghizadeh Isini, M. Dehghani Ghanatghestani, N. Kargari, S. Ghasemi
{"title":"Environmental Impacts of Formalin and Hexamine Production Units Using Life Cycle Assessment: A Case Study in the Gameron Petro Industry Complex, Iran","authors":"Leila Taghizadeh Isini, M. Dehghani Ghanatghestani, N. Kargari, S. Ghasemi","doi":"10.32598/jaehr.10.2.1248","DOIUrl":"https://doi.org/10.32598/jaehr.10.2.1248","url":null,"abstract":"Background: Formalin and hexamine as important chemicals are widely used in industry that their pollution effect is often taken into account. The aim of this study was to investigate environmental effects of formalin and hexamine production process in Gameron Petro Industry Complex using the life cycle assessment method. Methods: This study was conducted according to ISO 14040, using the life cycle assessment (LCA) method and SimaPro software 9, as well as Eco-indicator99, IMPACT2002+ and EDIP2003. The functional unit studied was 1 ton of product (800 kg hexamine plus 200kg formalin) in this complex. Results: It was found that ammonia was the most influential input material in creating the consequences of climate change, radiation and toxicity. In respiratory inorganics, the contribution of ammonia and methanol was the same. Methanol was the dominant input of other outcome. It was determined that the effect of methanol and ammonia on human health was approximately equal. Ammonia and methanol had effect on ecosystem toxicity and creating the category of resource consumption, respectively. The total values of the effect classes were 0.001636 DALY, 2038.305 PDF.m² yr, 2091.536 kg CO2 equivalents and 61.87139MJ surplus. Conclusion: The results showed that in the life cycle of formalin production, and hexamine, methanol is the dominant input in creating environmental impacts. After that, ammonia, diesel and electricity were the effective inputs in the production life cycle of these products.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82696260","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}
{"title":"Noise Pollution Assessment in Sylhet City Corporation Using Geographic Information System (GIS)","authors":"Ashikur Rahman, Jahir BIN Alam","doi":"10.32598/jaehr.10.2.1235","DOIUrl":"https://doi.org/10.32598/jaehr.10.2.1235","url":null,"abstract":"Background: Noise pollution is a risk factor for human health which is continuously increasing in Sylhet City corporation, located in the Sylhet division in Bangladesh. Methods: In this study, we assessed the noise pollution level in Sylhet City by comparing it with the standard noise level. Also, the outcomes of this study were compared to other studies from different countries. In order to measure the noise level in decibel, BSWA 308 device was used in this study. A total of 38 samples were taken from different geographical locations in Sylhet City Corporation. The 38 samples provided 96 to 99% accuracy with a 95% confidence level of >36. Results: The decibel values ranged from 72 to 86 dB. From the observed data we calculated the values as follows: L10, L50 and L90 and Noise Climate (NC)=12.7 dB, equivalent continuous noise level Leq=77.18 dB and noise pollution level Lnp=89.88 dB. A contour map of the area was made using Arc GIS software version 10.5. Every line in the contour map defined a specific decibel value. The map was made by 2 dB intervals between the corresponding contour lines. More than 30% of the study area was vulnerable to a high level of noise (>82 dBA), and about 30% had the lower level of noise (<77 dBA). Only 40% of the area had moderate noise levels (i.e., between 77 to 82 dBA). Conclusion: After comparing the outcomes of noise level in this study with previous studies, we observed that the noise level of this area was more than acceptable limit for all parameters.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"35 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72589665","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}
Abdolreza Karbul, M. Mohammadi, R. Jalilzadeh Yengejeh, F. Farrokhian
{"title":"Nanocomposite Fe-Co-V/Zeolite: Highly Efficient Composite for Removal of Methyl Orange Dye","authors":"Abdolreza Karbul, M. Mohammadi, R. Jalilzadeh Yengejeh, F. Farrokhian","doi":"10.32598/jaehr.10.2.1246","DOIUrl":"https://doi.org/10.32598/jaehr.10.2.1246","url":null,"abstract":"Background: In recent years, the dye industry has rapidly been developed. Dyes are one in all the foremost dangerous groups of chemical compounds found in industrial effluents, which are of considerable importance for reasons like reduced light permeability and therefore the subsequent disruption of the method of photosynthesis in water sources. This study was performed to remove dye using Fe-Co-V /Zeolite from a synthetic wastewater. Methods: After chemical synthesis of the nanocomposite, its structure was studied by spectroscopic techniques. The experiments were performed under different pH values (3-11), contact times (5-50 min), absorbent dose (0.5-0.6g), stirring speed (240-60 rpm), and different concentrations. Results: The results showed that the optimal and final conditions affecting the removal of methyl orange dye in the most suitable conditions for 200 mL of the solution with a concentration of 20 mg/L at pH equal to 3, contact time 20 min, adsorbent dose 0.2 g, jar speed 180 rpm and temperature 25°C, which finally with the application of the optimal data, at a concentration of 2.5 mg/L, the best efficiency was obtained. The examination of isotherm diagrams and isotherm coefficients showed that the adsorption process follows the Freundlich equation. Conclusion: According to the obtained results and physical and chemical properties of the synthesized nanocomposite, it can be used to remove pollutants from the environment such as wastewater and air.","PeriodicalId":14962,"journal":{"name":"Journal of Advances in Environmental Health Research","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79061083","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}