IOSR Journal of Environmental Science, Toxicology and Food Technology最新文献_第2页

Production and Evaluation of Biscuits from Lima Bean (Phaseolus Lunatus), Sorghum and Wheat Flour Blends. 利马豆、高粱、小麦粉混料饼干的生产与评价。

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-07-01 DOI: 10.9790/2402-1107014448

A. S.F, Okoli E.C

引用次数: 8

Impact Of Secondary School Geography Content In Mitigating Climate Change In Uganda 乌干达中学地理内容对减缓气候变化的影响

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-07-01 DOI: 10.9790/2402-1107013543

M. Ronald, Kagoda Alice Merab, Mugimu Christopher Byalusaago

引用次数: 4

Seasonal variations in zooplankton with reference to physicochemical conditions in temple pond at Thiruvottiyur, Chennai 参考物理化学条件的寺庙池浮游动物季节变化

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-07-01 DOI: 10.9790/2402-1107010105

J. M. Bashini, S. Pandiammal, P. Senthilkumaar

{"title":"Seasonal variations in zooplankton with reference to physicochemical conditions in temple pond at Thiruvottiyur, Chennai","authors":"J. M. Bashini, S. Pandiammal, P. Senthilkumaar","doi":"10.9790/2402-1107010105","DOIUrl":"https://doi.org/10.9790/2402-1107010105","url":null,"abstract":"Seasonal dynamics of plankton diversity with reference to physico-chemical conditions in a fresh water pond was studied in temple pond at Thiruvottiyur, Chennai. Along with the physico-chemical parameters, water samples were also characterized for plankton community composition and density. The physico-chemical parameters also showed positive correlation with different zooplankton group. The water samples were analyzed for various physico-chemical factors. Totally 4 groups of zooplankton taxa were identified (Rotifera, Cladocerans, Ostracodans and Copepods). Zooplankton population density was maximum during summer (100 units/litre) and minimum (8.85 units/litre) during monsoon season. A total of 19 taxa were recorded (Rotifera 3, cladocerans 4, Ostracodans 6 and Copepods 6). Among the Rotifera, Branchionus and Keratella species; among the Cladocerans, Moina and Bosmina species; among the Ostracodans, Heterocypris and Physocypria species and among Copepods, Undinula and Pontellopsis species were abundant. The abundance of zooplankton in the pond follows a sequence as: Ostracodans = Copepods > Cladocerans > Rotifera. Correlation between various physico-chemical parameters and zooplankton density was calculated. Some of the changes in zooplankton community structure were found associated with seasonal changes in temperature and nutrient content of water. Rise in DO and nutrient levels of nitrate, phosphate and silicate suggested favorable conditions for plankton growth. This study revealed that the presence of above mentioned species are considered to be biological indicator for eutrophication.","PeriodicalId":14546,"journal":{"name":"IOSR Journal of Environmental Science, Toxicology and Food Technology","volume":"49 1","pages":"01-05"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76503146","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

Assessment of Geoidal Undulation (N) Values Computed with Reference to Different Earth Gravity Models 参考不同地球重力模型计算大地面波动(N)值的评估

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-07-01 DOI: 10.9790/2402-1106036472

Benjamin John Bulangas, A. Mohammed, M. Ismaila

{"title":"Assessment of Geoidal Undulation (N) Values Computed with Reference to Different Earth Gravity Models","authors":"Benjamin John Bulangas, A. Mohammed, M. Ismaila","doi":"10.9790/2402-1106036472","DOIUrl":"https://doi.org/10.9790/2402-1106036472","url":null,"abstract":"This research entails the determination of the variations in global geoid undulation with reference to different Earth Gravity Models (EGMs). Geoidal undulation values of 22 points selected within the study area were determined from GPS derived data on differential mode. The undulation values were computed with reference to three different earth gravity models (EGM84, EGM96 and EGM2008) which use geopotential coefficients and spherical harmonic analysis. The results obtained were plotted and the configuration of the local geoid was obtained with respect to each gravity model. It was observed that structural development in the school (study area) since its inception in 1981 has forced some significant changes in the mass distribution in the school and consequently changes in gravity values which in turn changes the undulation values (which depends on gravity) from point to point. It was also observed that there was correlation between the local geoid determined and the nature of the topography. Areas with higher ellipsoidal or orthometric heights experience greater separation between the geoid and the ellipsoid.","PeriodicalId":14546,"journal":{"name":"IOSR Journal of Environmental Science, Toxicology and Food Technology","volume":"3 1","pages":"64-72"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80368090","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

The Degradation Potential of Some Fungal Isolates on Various Types of Waste Water 几种真菌分离物对不同类型废水的降解潜力

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-07-01 DOI: 10.9790/2402-1106037376

Esraa Mohamed, Shami E. A. Bakhiet

{"title":"The Degradation Potential of Some Fungal Isolates on Various Types of Waste Water","authors":"Esraa Mohamed, Shami E. A. Bakhiet","doi":"10.9790/2402-1106037376","DOIUrl":"https://doi.org/10.9790/2402-1106037376","url":null,"abstract":"The objective of this study was to determine the degradation activity of a number of isolated fungi (Aspergillus niger, Aspergillus fumigates and Mucor spp) against various types of wastewater. Waste water Samples were collected in sterile bottles from two places (CAPO Company and wastewater treatment plant in Haj Yousif), in October 2016. Metals and heavy metals were measured in wastewater samples before and after treatment by tested isolated fungi. Results showed increased reduction in Chemical oxygen demand (BOD) after treatment of CAPO CO. wastewater (96.23 %) rather than in Haj Yousif region (44.00 %). Chemical oxygen demand (COD) exhibited more reduction after treatment of CAPO CO wastewater (95.7 %) rather than Haj Yousif region which increased by 18.81 %. Total suspended solids (TSS) reduced after treatment of CAPO CO. wastewater by 75 % while in Haj Yousif region the reduction was 25 %. Moreover, no change was observed in Total dissolved Solids (TDS) after treatment of both CAPO CO. wastewater and Haj Yousif region (0 %). Similarly, no change was observed in NH3 content after treatment of CAPO CO. and Haj Yousif region (36.66 %). PO4/P, CL-, SO-24, Fe+++, Pb+2, and Cr+2 were reduced after treatment of CAPO CO wastewater (%49.23), While in Haj Yousif region were decreased as follows (-2.89, -11.12, -106.04, and -200) respectively. Cu+2 quantity reduction was increased after treatment of CAPO CO wastewater (97 %) more than in Haj Yousif region (6.25 %). Cd+2 in Haj Yousif region was increased (49.23 %), but in Capo CO wastewater was not detected (ND). The present study demonstrated the efficiency of these tested microorganisms to degrade the heavy metals.","PeriodicalId":14546,"journal":{"name":"IOSR Journal of Environmental Science, Toxicology and Food Technology","volume":"20 3","pages":"73-76"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91507171","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

Household Air Pollutionin Rural Western Kenya: A Major Public Health Challenge 肯尼亚西部农村家庭空气污染:一项重大公共卫生挑战

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-07-01 DOI: 10.9790/2402-1107018796

C. Munyao, G. Simiyu, K. Kiptoo, John Chelal

{"title":"Household Air Pollutionin Rural Western Kenya: A Major Public Health Challenge","authors":"C. Munyao, G. Simiyu, K. Kiptoo, John Chelal","doi":"10.9790/2402-1107018796","DOIUrl":"https://doi.org/10.9790/2402-1107018796","url":null,"abstract":"The use of biomass fuels poses great threats to public health accounting for 32% of the total attributable burden of diseases due to Indoor Air Pollution (IAP) in Africa. Heavy reliance on biomass fuels for household energy in Kenya makes the country more vulnerable with 90% of the rural population relying on biomass fuels for domestic purposes. The objective of this study was to assess effectiveness of improved biomass cookstoves in reducing kitchen PM2.5 concentration in Western Kenya region. The data was collected through continuous real-time monitoring of kitchen pollution concentration for a period of 24 hours using UCB-PATS, CO monitors, questionnaires and time activity budgets. Data analysis was undertaken by performing ANOVA to test for their variations from WHO stipulated safe standards. The study found that at 95% CI, mean 24-hr kitchen CO and PM concentrations from all the stoves were significantly higher than the stipulated WHO threshold. Three-stone fire had the highest average 24-hour kitchen PM and CO emissions using firewood at 4272.414μg/m 3 (p = 0.000) and 75.4417ppm (p = 0.000), respectively, while Chepkube stove had the least at 682.646μg/m 3 (p = 0.000) and 8.7224ppm (p = 0.000), respectively. It was concluded that, improved biomass stoves provided an overall reduction in pollutant concentration compared to three-stone fire but the local innovation Chepkube stove that has been classified as ungraded stove had the highest pollutant reduction. In addition, indoor air pollution in rural areas is a real health risk. Consequently, it was recommended that programs aiming to reduce the adverse health impacts of CO and PM2.5 should focus on measures that result in larger reductions of PM2.5 emissions especially during burning and peak periods.","PeriodicalId":14546,"journal":{"name":"IOSR Journal of Environmental Science, Toxicology and Food Technology","volume":"42 1","pages":"87-96"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74331491","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

Study On the Biogas Yielding Potential of a Portable Bioreactor Using a Blend of Corn Cob and Rice Chaff Mixed With Goat and Dog Dungs 玉米芯、稻壳与羊粪、狗粪混合的便携式生物反应器产气潜力研究

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-07-01 DOI: 10.9790/2402-1106035663

N. P. Okolie, A. Onifade, K. OladunmoyeM., D. Adegunloye

{"title":"Study On the Biogas Yielding Potential of a Portable Bioreactor Using a Blend of Corn Cob and Rice Chaff Mixed With Goat and Dog Dungs","authors":"N. P. Okolie, A. Onifade, K. OladunmoyeM., D. Adegunloye","doi":"10.9790/2402-1106035663","DOIUrl":"https://doi.org/10.9790/2402-1106035663","url":null,"abstract":"The study is to investigate the viability of corncob and rice chaff co-digested with goat and dog dungs in the production of biogas and the PCR detection of the methanogenic bacteria involved. The study was carried out at mesophillic condition between (29.5 –33 0 C) in a mini laboratory digester fabricated using guage 16 metal sheets with 80L capacity for a 90 days retention time. Corn cob and rice chaff were shredded and mixed with water with ratio 4:1 and 3:1 (waste to water) respectively and mixed with goat and dog dungs with ratio 2:1 (waste to water) and digested anaerobically. The proximate analysis of all the substratesused were carried out and the result shows a C:N (carbon, nitrogen ratio) that is appropriate for the biogas production. The result shows a yield of 15L after 20days at temperature 31 0 C and pH 6.2, there was a drop in the yield and then an increase from the 40th day of digestion. The cumulative production was 37L at temperature 31 0 C and pH 5.9. The bacteria isolated from the samples includes; E. coli, Proteusspp, Klebsiellapneumoniae,Serratia. spp, Flavimonas spp. The result revealed that this combination of substrates can yield significantly biogas.","PeriodicalId":14546,"journal":{"name":"IOSR Journal of Environmental Science, Toxicology and Food Technology","volume":"19 1","pages":"56-63"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78112615","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

A Study on Various Pasting and Textural Parameters of Chana Flour Incorporated Extruded Product 木瓜粉掺入挤压制品糊化及质构参数的研究

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-06-01 DOI: 10.9790/2402-1106012934

D. K. Bhatt, S. Verma

引用次数: 0

Identification and Distribution of Mosquitoes in Kafin Hausa Local Government Area, Jigawa State, Nigeria 尼日利亚吉加瓦州Kafin Hausa地方政府区蚊子的鉴定和分布

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-06-01 DOI: 10.9790/2402-1106033033

Umar Ahmed, S. Zakariya

引用次数: 0

Reproductive Behaviour, Hematological Profile and Monogenean Microfauna of the Nest-Breeding, Nile Green Tilapia (Tilapia zilli) Gervais, 1848 繁殖行为，血清学特征和巢中繁殖的单系微型动物群，尼罗绿罗非鱼(罗非鱼齐利)Gervais, 1848

IOSR Journal of Environmental Science, Toxicology and Food Technology Pub Date : 2017-06-01 DOI: 10.9790/2402-1106015065

El‐Naggar, El-Tantawy Sa, M. Mi, A. Kanni

引用次数: 4