International Journal of Scientific Research in Environmental Sciences最新文献_第4页

Assessment of Temperature and Metallic Stresses on a Psychrotolerant Bacterium Pseudomonas veronii ASP36 Isolated from Himalayan Region in Uttarakhand State, India 印度北阿坎德邦喜玛拉雅地区耐寒细菌维罗尼假单胞菌ASP36的温度和金属胁迫评价

International Journal of Scientific Research in Environmental Sciences Pub Date : 2016-03-01 DOI: 10.12983/IJSRES-2016-P0063-0070

A. S. Panwar, G. K. Joshi

引用次数: 0

Microbial Causes of Art Damage and Their Enzyme Profiles 艺术损伤的微生物成因及其酶谱

International Journal of Scientific Research in Environmental Sciences Pub Date : 2016-03-01 DOI: 10.12983/IJSRES-2016-P0078-0085

N. Rahman, W. Suen, S. Yip, New Jen Yan, Khoo Lay Pheck, N. See, Charmaine Ann, Celine Lloyd

引用次数: 1

Investigation of Inorganic Complexes of Amidoamines Synthesized from Synthetic Oxy- and Petroleum Acids as Corrosion Inhibitor 以合成氧和石油酸为缓蚀剂合成氨基胺无机配合物的研究

International Journal of Scientific Research in Environmental Sciences Pub Date : 2016-02-01 DOI: 10.12983/IJSRES-2016-P0040-0046

L. Afandiyeva, V. Abbasov, S. Ahmadbayova, S. Hajiyeva, E. Azizbeyli, F. Tahirova, S. Aliyeva

{"title":"Investigation of Inorganic Complexes of Amidoamines Synthesized from Synthetic Oxy- and Petroleum Acids as Corrosion Inhibitor","authors":"L. Afandiyeva, V. Abbasov, S. Ahmadbayova, S. Hajiyeva, E. Azizbeyli, F. Tahirova, S. Aliyeva","doi":"10.12983/IJSRES-2016-P0040-0046","DOIUrl":"https://doi.org/10.12983/IJSRES-2016-P0040-0046","url":null,"abstract":"Amidoamines have been synthesized based on the mixture of synthetic petroleum and oxy acids (SPA + OSPA) and polyethylene polyamine (PEPA). Physical and chemical indices of amidoamines have been identified. Complexes have been prepared from the amidoamine and HCl (Example 1), H3PO4 (Example 2), HNO3 (Example 3) in ratio 1:1. The kinetic effect of steel corrosion in 1% NaCl solution saturated with CO2 has been studied in ACM Gill AC potentiometer, at 50°C. Investigation was conducted at 25 and 50 ppm of each complex. It was found that, in Example 1 at 25 ppm after 20 hours of research the protection effect was 97.5%, at 50 ppm 97.3%. In Example 2 at 25 and 50 ppm corrosion protection were 92% and 90.4% after 20 hours of research. In Example 3 at 25 and 50 ppm after 20 hours of research protective effects were 97.5 and 97.3%. It was determined that, amidoamine derivatives obtained from SPA + OSPA and PEPA, at 25 ppm was the best result-98.3%. By Calculated Gibbs free energy and the image of the surface of used electrode it has been proved that, a complex in different concentrates easily was exposed to chemisorption on metal surface. Therefore protective film formed on the surface was stable.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"516 1","pages":"40-46"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77107706","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

Selective Harvesting Impact on Natural Regeneration, Tree Species Richness and Diversity in Forest Co-management Block in Liwonde Forest Reserve, Malawi 马拉维Liwonde森林保护区森林共管区选择性采伐对自然更新、树种丰富度和多样性的影响

International Journal of Scientific Research in Environmental Sciences Pub Date : 2016-02-01 DOI: 10.12983/IJSRES-2016-P0047-0054

Francis Kamangadazi, L. Mwabumba, Edward Missanjo, F. Phiri

{"title":"Selective Harvesting Impact on Natural Regeneration, Tree Species Richness and Diversity in Forest Co-management Block in Liwonde Forest Reserve, Malawi","authors":"Francis Kamangadazi, L. Mwabumba, Edward Missanjo, F. Phiri","doi":"10.12983/IJSRES-2016-P0047-0054","DOIUrl":"https://doi.org/10.12983/IJSRES-2016-P0047-0054","url":null,"abstract":"Biodiversity conservation within forests depends, in part, on management practices that restore or maintain plant community diversity and function. Because many plant communities are adapted to natural disturbances, selective harvesting has potential to meet this need. This study was conducted to determine the impact of selective harvesting on tree species regeneration abundance, richness and diversity in Chidenga forest co-management block in Liwonde forest reserve, Malawi after four years of harvesting. The study constituted two treatments: harvested area (selective harvesting) and non-harvested area (control). The data obtained was analysed using Rẻnyi diversity profile in Biodiversity R. The results show that there were substantial variations between the treatments on the studied variables. Harvested area had higher tree species regenerants abundance (6088±452 ha -1 ) than non-harvested area (5324±364 ha -1 ). Harvested area had a higher Hα (2.64) at 0-alpha than Hα (2.48) for non-harvested area, indicating that harvested area had the higher tree species richness than non-harvested area in the understory. Furthermore, in the understory, harvested area had higher profile, 2.64 to 0.33 from 0-Alpha to infinity, than non- harvested area, 2.48 to 0.21 from 0-Alpha to infinity. This indicates that harvested area was more diverse than non-harvested area. In the overstory, harvested area had individual tree species evenly distributed than in non-harvested area. This signifies a healthy or good ecosystem. Therefore, it can be suggested that selective harvesting has a significant role in conservation of the forest resource base, and may be promoted for sustainable management of forest co-management blocks.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"82 1","pages":"47-54"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91246645","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: 3

Bacteriological and Physicochemical Characteristics of Kaptai Lake Water in Terms of Public Health Significance Kaptai湖水的细菌学和理化特征及其对公共卫生的意义

International Journal of Scientific Research in Environmental Sciences Pub Date : 2016-02-01 DOI: 10.12983/IJSRES-2016-P0031-0039

R. Barua, S. Barua, Fatema Tuz-Zohora, R. Mutsuddi, M. Uddin, H. Hasegawa, I. Rahman

{"title":"Bacteriological and Physicochemical Characteristics of Kaptai Lake Water in Terms of Public Health Significance","authors":"R. Barua, S. Barua, Fatema Tuz-Zohora, R. Mutsuddi, M. Uddin, H. Hasegawa, I. Rahman","doi":"10.12983/IJSRES-2016-P0031-0039","DOIUrl":"https://doi.org/10.12983/IJSRES-2016-P0031-0039","url":null,"abstract":"Kaptai Lake (KL), which is one of the largest artificial freshwater lakes of South-east Asia, is located in the Rangamati district of Bangladesh and also the major dwelling place of the indigenous ethnic minorities. The lake water is consumed for drinking and other domestic purposes by the population living in islands within the lake without any intermediate purifying process. In the current study, the bacteriological, physicochemical and metal characteristics of the lake water have been measured to investigate the lake water quality regarding the health concerns in comparison with the limits set by WHO, USEPA and Bangladesh EQS. The heterotrophic plate count for the lake water samples were between ~75 and ~244 cfu mL -1 and was in compliance with the USEPA limit of 500 cfu mL -1 . However, the coliform count was in the range of 40.6 to 14017, and was above the standard limits set for drinking use. All the water samples also showed positive presence of Enterococcus spp., Salmonella spp., Pseudomonas spp. and Vibrio spp. The physicochemical analysis confirms that the water temperature (26-27 C), pH (7.5-7.8), electrical conductivity (108-113 µS cm -1 ), total dissolved solids (53-55 ppm), total hardness (42-43 ppm), total alkalinity (11-11.5 ppm), chloride (0.9-1.8 ppm) and dissolved oxygen (4.1-4.8 ppm) were within the limits of the guideline values. The concentrations (mg L -1 ) of toxic metal-species, e.g., lead (4.025-5.128), cadmium (0.008-0.020) and nickel (0.199-0.288) were found to be higher than the recommended regulatory limits, while the contents of copper (0.099-0.301), manganese (0.179-0.291) and zinc (1.989-2.278) were within the acceptable range. The findings from our work indicate that the water of KL is unsuitable for drinking use in terms of bacteriological and metal characteristics and might pose a long-term health risk to its consumers.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"45 1","pages":"31-39"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82814947","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: 7

Air Quality Monitoring in Uyo Metropolis, Akwa Ibom State, Niger Delta Region of Nigeria 尼日利亚尼日尔三角洲地区阿夸伊博姆州Uyo大都市空气质量监测

International Journal of Scientific Research in Environmental Sciences Pub Date : 2016-02-01 DOI: 10.12983/IJSRES-2016-P0055-0062

G. Ebong, V. Mkpenie

{"title":"Air Quality Monitoring in Uyo Metropolis, Akwa Ibom State, Niger Delta Region of Nigeria","authors":"G. Ebong, V. Mkpenie","doi":"10.12983/IJSRES-2016-P0055-0062","DOIUrl":"https://doi.org/10.12983/IJSRES-2016-P0055-0062","url":null,"abstract":"Assessment of air quality in Uyo metropolis was carried out by monitoring levels of nitrogen (IV) oxide, sulphur (IV) oxide, hydrogen sulphide, carbon (II) oxide, ammonia, chlorine gas and suspended particulate matter at four major locations within the study area for one week. Results obtained indicated higher mean concentrations of CO, NH3 and Cl2 in the morning hours, NO2, H2S and SPM in the afternoon while, SO2 did not vary considerably between these periods. Levels of these air particulates were above their recommended standards by FEPA indicating their nuisance status. However, Air quality index classified NO2 and SO2 in the very poor class, CO in moderate class while NH3 and SPM were in the very good category. Correlation analyses showed that, NO2 and SO2 exhibited strong positive relationships with H2S, CO and Cl2. Hydrogen sulphide showed common source and strong correlation with CO, NH3 and Cl2. Carbon (II) oxide correlated positively and significantly with Cl2 and SPM while, chlorine indicated significant positive association with SPM. Principal component analysis indicated two (2) major factors with 91.39% of total variance. Factor 1 represented impacts of fuel combustion and vehicular emissions whereas; factor 2 represented influences of organic matter decomposition and petroleum processing.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"11 1","pages":"55-62"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77301326","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: 9

Evaluation of Sequential Batch Reactor (SBR) Cycle Design to Observe the Advantages of Selector Phase Biology to Achieve Maximum Nutrient Removal 评价序批式反应器(SBR)循环设计，观察选择相生物学在最大限度去除营养物方面的优势

International Journal of Scientific Research in Environmental Sciences Pub Date : 2015-06-20 DOI: 10.12983/ijsres-2015-p0234-0238

Sandip Magdum, S. Varigala, Gauri Minde, J. Bornare, V. Kalyanraman

引用次数: 4

Comparison of Two Analytical Methods for Measurement of Iron Concentration in Groundwater in Chandrapur District, Central India 印度中部钱德拉普尔地区地下水铁浓度测定的两种分析方法比较

International Journal of Scientific Research in Environmental Sciences Pub Date : 2015-04-01 DOI: 10.12983/IJSRES-2015-P0129-0136

R. Kamble

{"title":"Comparison of Two Analytical Methods for Measurement of Iron Concentration in Groundwater in Chandrapur District, Central India","authors":"R. Kamble","doi":"10.12983/IJSRES-2015-P0129-0136","DOIUrl":"https://doi.org/10.12983/IJSRES-2015-P0129-0136","url":null,"abstract":"Water is an indispensible part of human life. Groundwater is contributing significantly as a source of drinking, cooking and domestic purposes. Groundwater contains different heavy metals and iron is one of the dominating one. Chronic exposure of iron through groundwater consumption above WHO drinking water standard of 0.3 mg/L has well understood. To ascertain the impacts of groundwater iron on human health its accurate measurement is an essential aspect. A research has been carried out to compare two analytical methods: ICP method (ICP-OES Dv 7000) and Aquaquant Iron Analysis Kit Merck, range 0.25-15 mg/L, Germany (visual method). Total 36 groundwater samples in Chandrapur district of Central India were assessed for post monsoon season of 2013 (October) for iron concentration by these two analytical methods. Findings of the study suggested that ICP method gives more accurate results in a wide range of iron concentration under field conditions as compared with Aquaquant Iron Analysis Kit. At 0.0-1.0 mg/L of Fe results obtained by both these method were in accordance with each other. At 1.0-2.0 mg/L of Fe, ICP gave slight increased in concentration as compared with test kit. However, at 5.0 mg/L of Fe by test kit, results obtained by ICP method was significantly lower.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"8 1","pages":"129-136"},"PeriodicalIF":0.0,"publicationDate":"2015-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90396257","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

Pattern of Damage by Rodent (Rodentia: Muridae) Pests in Wheat in Conjunction with Their Comparative Densities throughout Growth Phase of Crop 小麦鼠类害虫危害模式及其在作物生育期的相对密度

International Journal of Scientific Research in Environmental Sciences Pub Date : 2015-04-01 DOI: 10.12983/IJSRES-2015-P0159-0166

M. Sarwar

{"title":"Pattern of Damage by Rodent (Rodentia: Muridae) Pests in Wheat in Conjunction with Their Comparative Densities throughout Growth Phase of Crop","authors":"M. Sarwar","doi":"10.12983/IJSRES-2015-P0159-0166","DOIUrl":"https://doi.org/10.12983/IJSRES-2015-P0159-0166","url":null,"abstract":"Rodents are one of the most important vertebrate pests which directly and indirectly distress to the production of crops and storage of grains. Rodents especially under the Family Muridae can cause serious damage to cereal crops of all kinds including wheat. The present investigation was conducted to observe the pattern of damage by rodent (Rrodentia: Muridae) pests in wheat in conjunction with their comparative densities throughout growth phase of crop i.e., from seedling to mature grain stage. During the crop growing season, several rodent species were involved in damaging to wheat, but variations in their predominance were detected. Of the trapped and identified pests, the lesser bandicoot rat Bandicota bengalensis Gray was the mainly prime species in the wheat fields approached by Indian gerbil Tatera indica Hardwicke, house mouse Mus musculus L., soft-furred field rat Rattus meltada Gray and short tailed mole rat Nesokia indica Gray & Hardwicke. These different rodent pests began to raid and damage the wheat crop right from sowing and continued up to the time of harvesting. Such descriptions of damage are influenced by a number of factors, for instance, relative abundance of different growth stages of crop and their relative nutritional contents, palatability, tastes, and the availability of other food in the locality. The trends of different levels of damage through wheat stem cuttings at various growth stages served primarily as an indication that rats and mice are opportunistic foragers, adjusting their preferences according to availability of food resources. This information of food habits by specific rodents is a basis for the management of their populations and to reduce the damage in the wheat fields thereby increasing the grain yield.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"7 1","pages":"159-166"},"PeriodicalIF":0.0,"publicationDate":"2015-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86751672","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: 14

Evaluation of the Spatio-Temporal Variability in River and Groundwater Interactions, an Example from South West of Iran 河流与地下水相互作用的时空变异评价——以伊朗西南部为例

International Journal of Scientific Research in Environmental Sciences Pub Date : 2015-04-01 DOI: 10.12983/IJSRES-2015-P0147-0158

M. Chitsazan, M. Faryabi, A. Zarasvandi, A. Negarestani

{"title":"Evaluation of the Spatio-Temporal Variability in River and Groundwater Interactions, an Example from South West of Iran","authors":"M. Chitsazan, M. Faryabi, A. Zarasvandi, A. Negarestani","doi":"10.12983/IJSRES-2015-P0147-0158","DOIUrl":"https://doi.org/10.12983/IJSRES-2015-P0147-0158","url":null,"abstract":"River - groundwater interaction is one of the most common types of surface water and groundwater exchanges that occur in alluvial aquifers. These interactions are variable with space and time and received great attentions in recent years. In this research, the natural tracers such as 222 Rn, natural heat and common water quality characteristics were applied to evaluation of the river- groundwater interactions. The study area is Chamgolak area that is located in the northeast of the Andimeshk city in the south west of Iran. The Dez River is the major surface water body that interacts with groundwater in this area. The temporal and spatial variation of water exchanges between the river and groundwater were evaluated in this research. For this purpose, some common water quality parameters such 222 Rn, temperature, electrical conductivity (EC) and nitrate were measured in 2012- 2013 water year. The temporal variation patterns of common water quality parameters shows that the river recharge water influences the groundwater quality, so that the amounts of electrical conductivity (EC), temperature and nitrate show a notable decrease in river adjacent wells especially in wet period. \"The spatial pattern of nitrate concentration shows that the topographic conditions of the Dez River channel also influence the rate of river - groundwater interactions, so that the maximum water exchanges between river and groundwater occur in the convex part of the Dez River meander near the Chamgolak town. This study show that the Dez River has a losing nature and recharges the groundwater but with rates that is vary temporally and spatially.","PeriodicalId":14383,"journal":{"name":"International Journal of Scientific Research in Environmental Sciences","volume":"73 1","pages":"147-158"},"PeriodicalIF":0.0,"publicationDate":"2015-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89541083","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: 1