Environmental Forensics最新文献_第9页

How safe are the classrooms in nursery and primary schools?: The Nigerian study 幼儿园和小学的教室安全吗?:尼日利亚的研究

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-11-26 DOI: 10.1080/15275922.2021.2006364

A. Famuyiwa, S. O. Babajide, Yetunde A Lanre-Iyanda, A. S. Adeboye

{"title":"How safe are the classrooms in nursery and primary schools?: The Nigerian study","authors":"A. Famuyiwa, S. O. Babajide, Yetunde A Lanre-Iyanda, A. S. Adeboye","doi":"10.1080/15275922.2021.2006364","DOIUrl":"https://doi.org/10.1080/15275922.2021.2006364","url":null,"abstract":"Abstract Environmental pollution caused by potentially toxic elements (PTE) from various anthropogenic sources has become a global concern. An estimated 7 million premature deaths occur globally each year owing to ambient and indoor air pollution. This study assessed the concentration of PTE, level of contamination and human health risks of dust samples collected from classrooms in Abeokuta, South-Western Nigeria. Samples were collected from windowsills, chair, tables, and corners of the classrooms. Digestions of the samples were performed at College of Environmental Resource Management, Federal University of Agriculture, Abeokuta, Ogun state, Nigeria. PTE analyses revealed that the concentration of PTE (Cd, Cr, Cu, Fe, Ni, Pb, and Zn) measured were all within acceptable safe limit levels suggesting they were not contaminated. Pollution assessment tools employed (Enrichment factor and Contamination factor) revealed a descending order pattern of Cd > Pb > Zn > Cu > Cr > Ni > Fe. Source apportionment studies showed Cd, Cu, and Pb may have originated from anthropogenic sources, Cr and Ni from natural sources while Fe and Zn appeared to have emanated from mixed sources (natural and anthropogenic). The hazard quotient and hazard index values were lower than the safe limit of 1 suggesting no significant non-cancer effect to children and adult populations. Ingestion was the major exposure route for PTE followed by dermal contact and inhalation in that order. Cancer risk estimations were within the permissible limit of 10−6 to 10−4 and therefore suggests no carcinogenic effects, except for Cr. Furthermore, Cr was the predominant contributor to cancer effects and accounted for 96% for both children and adult populations. Regular monitoring of dust particulates is necessary to keep PTE contents low in the ambient air and consequently reduces human exposure to health risks.","PeriodicalId":11895,"journal":{"name":"Environmental Forensics","volume":"30 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87214245","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

Distribution and sources of fatty acids in surface sediments of mangrove ecosystems in the Northern Kerala Coast, India 印度喀拉拉邦北部海岸红树林生态系统表层沉积物中脂肪酸的分布和来源

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-11-25 DOI: 10.1080/15275922.2021.2006368

P. Resmi, T. R. Gireeshkumar, C. S. Ratheesh kumar, P. B. Udayakrishnan, N. Chandramohanakumar

{"title":"Distribution and sources of fatty acids in surface sediments of mangrove ecosystems in the Northern Kerala Coast, India","authors":"P. Resmi, T. R. Gireeshkumar, C. S. Ratheesh kumar, P. B. Udayakrishnan, N. Chandramohanakumar","doi":"10.1080/15275922.2021.2006368","DOIUrl":"https://doi.org/10.1080/15275922.2021.2006368","url":null,"abstract":"Abstract Fatty acids and bulk geochemical proxies were employed to understand the sources and transformation of sedimentary organic matter from surface sediments of major five mangrove systems in the northern Kerala coast. Texture, tidal rhythm and the proximity to the south eastern Arabian Sea were the main factors influencing distribution and accumulation of the organic matter in these systems. A total of 118 fatty acids were quantified and grouped into short-chain (SCFA), long-chain (LCFA), monounsaturated (MUFA), polyunsaturated (PUFA) and branched-chain (BrFA) fatty acids, hydroxy fatty acids, cyclic fatty acids, and dicarboxylic acids. The distribution of fatty acid groups was in the order SCFA > BrFA > MUFA > LCFA > PUFA. Total fatty acids (TFA) concentration exhibited profound seasonal variations and ranged from 6.25 to 580.49 μg/g (pre-monsoon > post-monsoon > monsoon except in Kadalundi which follows the reverse order). The sedimentary fatty acids in the study region reveal a wide spectrum of inputs from terrestrial, planktonic (preponderance of diatom followed by dinoflagellates along with brown algae, cyanobacteria, red algae) and bacterial sources (e.g., Desulfobulbus-type bacteria, sulfur-reducing bacteria, Sulfur-oxidizing bacteria). Significant concentrations of bacterial fatty acids suggest the functioning of an effective microbial loop and various biogeochemical pathways operating in these sediments (sulfate reduction, iron and manganese oxide reduction, etc.).","PeriodicalId":11895,"journal":{"name":"Environmental Forensics","volume":"17 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79957985","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

Polybrominated diphenyl ethers concentrations in metals and plastics scrap impacted soils: Pollution load, sources, ecological, and onsite human health implications 受影响土壤中的金属和塑料废料中的多溴联苯醚浓度:污染负荷、来源、生态和现场人类健康影响

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-11-22 DOI: 10.1080/15275922.2021.2006367

O. O. Emoyan, G. Tesi, E. Ohwo, C. Olisah, S. U. Oghoje

{"title":"Polybrominated diphenyl ethers concentrations in metals and plastics scrap impacted soils: Pollution load, sources, ecological, and onsite human health implications","authors":"O. O. Emoyan, G. Tesi, E. Ohwo, C. Olisah, S. U. Oghoje","doi":"10.1080/15275922.2021.2006367","DOIUrl":"https://doi.org/10.1080/15275922.2021.2006367","url":null,"abstract":"Abstract The usage of polybrominated diphenyl ethers (PBDEs) as fire-resistant additives was banned several years ago; however, they persist in several environmental compartments. This study determined the concentrations and associated exposure risks of Ʃ39PBDEs in soil depth samples from selected metals and plastics scrap catchments in the Niger Delta region, Nigeria. Samples extraction was performed by the Soxhlet extraction method followed by GC-MS analysis. The mean concentrations of ∑39PBDEs-congeners ranged from 0.01 ± 001 to 25 ± 11.0 ng g−1 in the topsoil and 0.01 ± 0.01 to 6.50 ± 4.7 ng g−1 in the subsoil. The PBDE homologue profiles were dominated by di, penta, hexa, and tri-BDEs. The PBDEs cancer and non-cancer risk for infants were higher than those in adults, expressed in the following order: ingestion > dermal contact > inhalation. In general, the sum for the three exposure pathways was within the allowable threshold limit, suggesting a low lifetime cancer risk from soil exposures. The technical mixture used for paints, plastics, hydraulic, and dielectric insulating fluids for transformers, capacitors, cable wires, and power capacitors is a potential source of Ʃ39PBDEs in the study area. With the increase in metals scrap enterprise in Nigeria, this study provides empirical data useful for the development of efficient strategies to strengthen and enforce existing regulations for metals and plastics scrap land use in Nigeria and other similar catchments around the world.","PeriodicalId":11895,"journal":{"name":"Environmental Forensics","volume":"106 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75658210","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: 2

Determination of natural radionuclides in phosphogypsum samples from phosphoric acid production industry in Senegal 塞内加尔磷酸工业磷石膏样品中天然放射性核素的测定

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-11-21 DOI: 10.1080/15275922.2021.2006362

Ousmane Ndour, C. Thiandoume, A. Traoré, X. Cagnat, Papa Mbaye Diouf, Maurice Ndeye, A. S. Ndao, A. Tidjani

{"title":"Determination of natural radionuclides in phosphogypsum samples from phosphoric acid production industry in Senegal","authors":"Ousmane Ndour, C. Thiandoume, A. Traoré, X. Cagnat, Papa Mbaye Diouf, Maurice Ndeye, A. S. Ndao, A. Tidjani","doi":"10.1080/15275922.2021.2006362","DOIUrl":"https://doi.org/10.1080/15275922.2021.2006362","url":null,"abstract":"Abstract In this study, the activity concentration of natural radionuclides (238U, 226Ra, 210Pb, 232Th, and 40K) in phosphogypsum were measured using a low-background digital gamma-ray spectrometer equipped with Broad Energy Germanium (BEGe) detector. The mean activity concentrations of 238U, 226Ra, 210Pb, and 232Th were found to be 88.5 ± 19.5 Bq kg−1, 879.6 ± 20.3 Bq kg−1, 755.4 ± 17.1 Bq kg−1, 4.5 ± 0.3 Bq kg−1, and below the detection limit respectively. The estimated radium equivalent activity was found to be higher than the world recommended value of 370 Bq kg−1 but is within the recommended limit of 2220 Bq kg−1 for the use of phosphogypsum in the construction of roads, bridges, and foundations of non-residential buildings. The total annual effective doses received by workers and members of the public were found to be lower than the annual limit of 1 mSv y−1, except for the scenario of a person living in a house built with building material containing phosphogypsum.","PeriodicalId":11895,"journal":{"name":"Environmental Forensics","volume":"14 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2021-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82288744","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: 2

Heavy metals and arsenic in an abandoned barite mining area: ecological risk assessment using biomarkers 废弃重晶石矿区重金属和砷:生物标志物生态风险评估

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-10-11 DOI: 10.1080/15275922.2021.1976315

R. Necula, Marius Zaharia, Alina-Ramona Butnariu, M. Zamfirache, A. Surleva, C. Ciobanu, Olga Pintilie, C. Iacoban, G. Drochioiu

{"title":"Heavy metals and arsenic in an abandoned barite mining area: ecological risk assessment using biomarkers","authors":"R. Necula, Marius Zaharia, Alina-Ramona Butnariu, M. Zamfirache, A. Surleva, C. Ciobanu, Olga Pintilie, C. Iacoban, G. Drochioiu","doi":"10.1080/15275922.2021.1976315","DOIUrl":"https://doi.org/10.1080/15275922.2021.1976315","url":null,"abstract":"Abstract This study identifies a source of heavy metal pollution in the Tarnița-Ostra area, Suceava County, Romania, using both chemical and biological techniques. Samples collected from the sterile dumps and the surrounding soil were digested and analyzed for total metals and arsenic by inductively coupled plasma-optical emission spectroscopy (ICP-OES) and atomic absorption spectrometry (AAS). High concentrations of heavy metals, such as copper (3.12 g/kg), arsenic (0.68 g/kg), lead (2.67 g/kg), zinc (0.43 g/kg) and barium (0.54 g/kg), found in that region, may pose a high risk to the environment and public health through the food chain. The large amounts of Cu, Fe, Pb, Zn and As of the collected samples diminished much the germination of wheat (Triticum aestivum L.), used in this study as a marker of toxicity. However, after the removal of the heavy metals by treating the aqueous extracts with sodium hydroxide solutions, the germination parameters returned to normal. The quantification of heavy metal levels by ICP-OES provides a better understanding of the potential ecological risks and contamination status of the tailings dumps. Instead, wheat germination tests can be reliable and inexpensive biological methods to prove the harmful effect of heavy metals and arsenic on plants.","PeriodicalId":11895,"journal":{"name":"Environmental Forensics","volume":"116 1","pages":"164 - 175"},"PeriodicalIF":1.8,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79327919","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: 4

Perchlorate and chlorate contamination associated with fireworks in Kerala, India 印度喀拉拉邦烟花爆竹的高氯酸盐和氯酸盐污染

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-10-08 DOI: 10.1080/15275922.2021.1976320

M. R. Sijimol, D. Dineep, S. Arun Sasi, M. Abdul Shukkur, Ashna Antony, Mahesh Mohan

引用次数: 0

Groundwater pollution source identification problems with unknown aquifer parameters by ADGA approach 未知含水层参数下的地下水污染源识别问题

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-10-07 DOI: 10.1080/15275922.2021.1976317

Ying Zhao, Jiuhui Li, Wenxi Lu, Fan Yang

{"title":"Groundwater pollution source identification problems with unknown aquifer parameters by ADGA approach","authors":"Ying Zhao, Jiuhui Li, Wenxi Lu, Fan Yang","doi":"10.1080/15275922.2021.1976317","DOIUrl":"https://doi.org/10.1080/15275922.2021.1976317","url":null,"abstract":"Abstract High-cost remediation of groundwater pollution makes it important to obtain exact information about the source. This is quite difficult to achieve in naturally ill-posed inverse problems of this kind. If the aquifer parameters are also unknown, the problem becomes even more challenging. To address this difficulty, we propose the alternating direction genetic algorithm (ADGA) approach, together with modification of the order of magnitude of the decision variables, to increase the accuracy of the results and computational efficiency. Seven scenarios were designed to test the accuracy of the proposed approach in aquifer with different properties, number of pollution sources, parameters and measurement errors. The results show that combining the ADGA approach with modification of the order of magnitude of the decision variables for identifying both groundwater pollution source and aquifer parameters significantly increases the accuracy of estimated results. The NE value for the estimated results decreased from 9.81% to 58.44% for different cases, and computation time is about half decreased. In addition, the approach is applicable in situations where concentrations of observational data with measurement error, and for multiple source locations and non-uniform media.","PeriodicalId":11895,"journal":{"name":"Environmental Forensics","volume":"231 1","pages":"120 - 129"},"PeriodicalIF":1.8,"publicationDate":"2021-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76432194","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: 3

Occurrence and distribution of heavy metals in the tissues of Physa acuta (D.) in relation to the contamination level of sediments from Boumerzoug wadi (Algeria) 阿尔及利亚Boumerzoug wadi沉积物污染水平与尖藻(Physa acuta)组织中重金属的发生和分布

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-10-07 DOI: 10.1080/15275922.2021.1976313

Dounia Keddari, Imane Smatti-Hamza, S. Mehennaoui, L. Sahli, Fatima-Zohra Afri-Mehennaoui

{"title":"Occurrence and distribution of heavy metals in the tissues of Physa acuta (D.) in relation to the contamination level of sediments from Boumerzoug wadi (Algeria)","authors":"Dounia Keddari, Imane Smatti-Hamza, S. Mehennaoui, L. Sahli, Fatima-Zohra Afri-Mehennaoui","doi":"10.1080/15275922.2021.1976313","DOIUrl":"https://doi.org/10.1080/15275922.2021.1976313","url":null,"abstract":"Abstract The aim of this study was to assess the metallic contamination of sediments, and metals bioaccessibility via their distribution in the gastropod Physa acuta (Pulmonata). The concentrations of Cd, Co, Cr, Cu, Mn, Ni, Pb and Zn in the soft tissue and shell of P. acuta, as well as in fresh surface sediments from the Boumerzoug wadi and its tributaries, northeastern Algeria, were determined by flame atomic absorption spectrophotometry. The samples were collected from ten sites on five occasions (May, September and December 2016, March and July 2017). Results showed that the trace metal mean concentrations in sediments, tissues and shells of the gasteropod, followed a decreasing order: Mn > Zn > Cr > Cu > Ni > Pb > Co > Cd. The pseudo-total contents of Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn in sediment were about 0.45 ± 0.43, 12.19 ± 2.49, 51.70 ± 19.82, 46.70 ± 39.60, 296.15 ± 105.83, 36.50 ± 10.93, 32.40 ± 9.10, and 186.72 ± 118.93 mg/kg dw, respectively. The concentrations of the metals studied in P. acuta were age dependent, with adults having significantly higher concentrations than juveniles. All heavy metal concentrations detected were higher in soft tissue with the lowest coefficient of variation than in shells for both adults and juveniles. The presence of a significant direct relationship between the Cd content in the sediment and in the soft tissues of P. acuta in both adults (r = 0.83; P < 0.01) and juveniles (r = 0.53; P < 0.01), and the high bioaccumulation factor observed make this gastropod a good indicator for the monitoring of freshwater sediment contamination by this metal.","PeriodicalId":11895,"journal":{"name":"Environmental Forensics","volume":"22 1","pages":"96 - 111"},"PeriodicalIF":1.8,"publicationDate":"2021-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78003996","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: 1

Development of statistical model for predicting terrestrial gamma radiation dose 地面伽玛辐射剂量预测统计模型的发展

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-10-07 DOI: 10.1080/15275922.2021.1976316

N. Garba, M. Saleh, A. T. Ramli, M. Sanusi, N. A. Abu Hanifah

{"title":"Development of statistical model for predicting terrestrial gamma radiation dose","authors":"N. Garba, M. Saleh, A. T. Ramli, M. Sanusi, N. A. Abu Hanifah","doi":"10.1080/15275922.2021.1976316","DOIUrl":"https://doi.org/10.1080/15275922.2021.1976316","url":null,"abstract":"Abstract Natural environmental radioactivity aroused mainly from primordial radionuclides such as 40K and 238U and 232Th decay series, and have been present in varying concentrations within the earth and in the tissue of every living being. Natural radioactivity can be found everywhere; in the soil, public water supplies, oil, and the atmosphere and it poses a measurable exposure to human beings. The present study developed a statistical model that can be used to predict the Terrestrial Gamma Radiation Dose rates (TGRD) based on soil types and geological formations irrespective of the environment. About 295 TGRD measurements were taken using a micro-Roentgen survey meter (model 19) manufactured by Ludlum, from different locations within the study area. Statistical Package for Social Sciences (SPSS) was utilized in establishing the relationships between TGRD with underlying geological formations and soil types as well as in the development of the model. The developed model was tested by predicting the TGRD value over different combinations of soil types and geological formations, and it was found to fit in well with more than 80% degree of accuracy which is within the acceptable limit. The developed model in this study, may help in establishing the background radioactivity levels in a terrestrial environment that can be used to evaluate any changes that may arise as a result of any release due to both natural and or human activities in a certain area.","PeriodicalId":11895,"journal":{"name":"Environmental Forensics","volume":"136 1","pages":"130 - 138"},"PeriodicalIF":1.8,"publicationDate":"2021-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76437916","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: 1

Elemental profile of lipstick by AAS technique: Health risk investigation 原子吸收光谱法分析口红元素的健康风险

IF 1.8 4区环境科学与生态学

Environmental Forensics Pub Date : 2021-09-22 DOI: 10.1080/15275922.2021.1976318

Rito Chophi, Spriha Sharma, Rajinder Singh

引用次数: 0