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Environmental Monitoring and Assessment

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https://www.readbyqxmd.com/read/30242737/potential-use-of-remote-sensing-techniques-in-evapotranspiration-estimations-at-watershed-level
#1
Sakine Çetin, Eyüp Selim Köksal
In hydrology, evapotranspiration (ET) is defined as phase conversion and rise of water in soils, plants, rivers, lakes, and seas under the atmospheric conditions. Investigation of water displacement through either ET or precipitations, runoffs and infiltrations may provide significant contributions for water resources management practices. In this study, daily, monthly, and seasonal ET maps were generated for Minöz Stream Watershed of Kavak town of Samsun province with the aid of energy balance-based METRIC model for the water-year of 2007...
September 21, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30242488/intra-monsoonal-variation-of-zooplankton-population-in-the-sundarbans-estuarine-system-india
#2
Tanmoy Nandy, Sumit Mandal, Meenakshi Chatterjee
The present study was conducted during July 2013 (early phase of monsoon or EM) and September 2013 (later phase of monsoon or LM) to ascertain the intra-monsoonal variation on zooplankton, by selecting 15 study stations in the river Saptamukhi, one of the main estuaries in the Sundarbans Estuarine System (SES). In 2013, SES experienced an unusually high monsoonal rainfall also exacerbated by cloud burst event at Himalayan region (upper stretches of SES) which tremendously increased the river runoff. The present work was aimed to decipher the effect of this unusual precipitation during the monsoon season on zooplankton assemblages along with different hydrological parameters...
September 21, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30242485/biochemical-and-microbiological-activity-of-soil-contaminated-with-o-cresol-and-biostimulated-with-perna-canaliculus-mussel-meal
#3
Magdalena Zaborowska, Jan Kucharski, Jadwiga Wyszkowska
The choice of the study subject was a consequence of the growing interest in volatile organic compounds which are strongly dispersed in the environment. The knowledge of o-cresol's capability for being broken down by bacteria should be supplemented by studies aimed at determining the biochemical and microbiological activity of soils. o-Cresol was applied at the following rates: 0, 0.1, 1, 10, and 50 mg of o-cresol kg-1 d.m. of soil to determine its effect on the biological properties of soil. The activity of dehydrogenases, catalase, urease, acid phosphatase, alkaline phosphatase, arylsulfatase, and β-glucosidase, the eight groups of microorganism counts, was determined in soil samples after 45 days and the barley yield was determined...
September 21, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30238317/a-new-design-of-electronic-control-unit-involving-microcontroller-to-determine-important-parameters-for-target-species-in-forest
#4
Gonca Ece Özcan, Osman Çіçek, Korhan Enez, Mustafa Yildiz
Forests, a valuable source provided by nature to living beings, are indispensable for many living organisms; hence, it is important to ensure the sustainability of forests. Determining the factors that exposure threats to the forests, executing protective methods against them and putting these methods into practise are important for the ecological cycle. Bark beetles, which have destructive effects on the ecosystem, are one of the factors that expose a threat to forests. Therefore, monitoring of these species and determination of effective control strategies are increasingly gaining importance in forestry...
September 21, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30238277/metal-biomonitoring-in-a-patagonian-salt-marsh
#5
C H Marinho, E Giarratano, M N Gil
Patagonian salt marshes are not affected by pollution, but historical mining wastes are a continuous source of metals to salt marsh in San Antonio Bay. The present study evaluated the concentration of metals in sediments and used the halophyte Spartina spp. and the crab N. granulata as biomonitors. The levels of metals in sediment and organisms in SAB remained at levels corresponding to a slight enrichment or contamination. The highest levels corresponded to innermost sites of the Encerrado channel and close to the mining wastes...
September 20, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30238229/using-generalized-additive-models-to-investigate-factors-influencing-cyanobacterial-abundance-through-phycocyanin-fluorescence-in-east-lake-china
#6
Yi-Ming Kuo, Jun Yang, Wen-Wen Liu, Enmin Zhao, Ran Li, Liquan Yao
East Lake is a shallow lake (in Wuhan, China) where cyanobacteria blooms occurred frequently from 1970 to 1985. During the study period, all Carlson trophic state index values were > 50, indicating that East Lake is in a eutrophic state. In this study, phycocyanin concentrations were measured through phycocyanin fluorometry for rapid assessment of cyanobacterial abundance. The smoothing splines of the optimal generalized additive model (GAM) indicated that Secchi depth (SD), total phosphorus (TP) and dissolved oxygen (DO) concentrations, electrical conductivity (EC), chemical oxygen demand (COD), and ratios of total nitrogen (TN) to TP (TN:TP) were the main environmental factors in a moderate nonlinear relationship with cyanobacterial phycocyanin concentrations in East Lake...
September 20, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30238169/predicting-sanitary-landfill-leachate-generation-in-humid-regions-using-anfis-modeling
#7
Taher Abunama, Faridah Othman, Mohammad K Younes
Landfill leachate is one of the sources of surface water pollution in Selangor State (SS), Malaysia. Leachate volume prediction is essential for sustainable waste management and leachate treatment processes. The accurate estimation of leachate generation rates is often considered a challenge, especially in developing countries, due to the lack of reliable data and high measurement costs. Leachate generation is related to several variable factors, including meteorological data, waste generation rates, and landfill design conditions...
September 20, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30232629/trend-estimation-for-complex-survey-designs-of-water-chemistry-indicators-from-sierra-nevada-lakes
#8
L A H Starcevich, T McDonald, A Chung-MacCoubrey, A Heard, J Nesmith, T Philippi
Surveys for long-term monitoring programs managing natural resources often incorporate sampling design complexity. However, design weights are often ignored in trend models of data from complex sampling designs. Generalized random tessellation stratified samples of a simulated population of lakes are selected with various levels of survey design complexity, and three trend approaches are compared. We compare an unweighted trend model, linear regression models of the trend in design-based estimates of annual status, and a probability-weighted iterative generalized least squares (PWIGLS) approach with a linearization variance...
September 19, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30232620/evaluation-of-soil-hydraulic-properties-under-different-non-agricultural-land-use-patterns-in-a-basement-complex-area-using-multivariate-statistical-analysis
#9
S A Ganiyu
The knowledge about effects of different land use patterns on soil hydraulic properties is essential for best land management practices. This study examined hydraulic properties under different non-agricultural land uses in parts of Abeokuta, Southwest Nigeria. Fifteen clusters surface soil samples at a depth of 0-20 cm were collected from five sites on the same geological setting under the following land uses: grassland (control), dumpsite (DS), animal waste site (AWS), quarry site (QS), and block making site (BMS)...
September 19, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30232560/real-time-reservoir-operation-using-data-mining-techniques
#10
Omid Bozorg-Haddad, Mahyar Aboutalebi, Parisa-Sadat Ashofteh, Hugo A Loáiciga
The optimal operation of hydropower reservoirs is essential for the planning and efficient management of water resources and the production of hydroelectric energy. Various techniques such as the genetic algorithm (GA), artificial neural networks (ANN), support vector machine (SVM), and dynamic programming (DP) have been employed to calculate reservoir operation rules. This paper implements the data mining techniques SVM and ANN to calculate the optimal release rule of hydropower reservoirs under "forecasting" and "non-forecasting" scenarios...
September 19, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30219974/a-quantitative-analysis-of-global-environmental-protection-values-based-on-the-world-values-survey-data-from-1994-to-2014
#11
Qiuhua Li, Bin Wang, Haifeng Deng, Chaoqing Yu
The four most recent sub-datasets of the World Value Survey (WVS) database (i.e., WVS3, WVS4, WVS5, and WVS6) contain a total of 25 non-numerical variables of environmental protection values and cover the period from 1994 to 2014. This study utilized these datasets to obtain the spatiotemporal distributions of the values and provided a preliminary analysis of the environmental protection values in different cultural districts. The work includes 4 parts. First, the information from the values included in the 25 variables is subjectively classified into action values and attitude values according to the meanings of the variable labels...
September 15, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30219949/avifauna-conservation-and-disturbance-ecology-in-a-coastal-freshwater-lagoon
#12
Tiago Cruz, Joana Lima, António Luís, Ulisses Miranda Azeiteiro
This work was developed in Barrinha de Mira Coastal Lagoon, Portugal. The lagoon belongs to the Natura 2000 network. Its main objectives were to monitor aquatic bird species before, during, and after a desorption intervention on this lagoon. Monitoring of waterfowl was carried out to evaluate the monthly variation of birds in Barrinha, in order to obtain useful information for region's management and planning, as well as for species preservation. In experimental design, it was decided to perform four counts per month in each pond (weekly), to evaluate the effect of increased monitoring effort in relation to previous years...
September 15, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30218210/stabilized-red-soil-an-efficient-liner-system-for-landfills-containing-hazardous-materials
#13
R Gopinath, R Poopathi, M Vasanthavigar, R Arun, M Mahadevan
In recent decades, disposal of hazardous material has become a challenging task especially in case of landfills where leaching out of waste is possible. In such cases, an efficient and economical liner system using locally available material is very essential. In this paper, an attempt has been made to study the suitability of red soil stabilized using lime and Prosopis juliflora fibers as liner material for landfills. Prosopis is a woody weed available abundantly in tropical and subtropical regions of the world...
September 15, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30218197/model-of-calculating-a-composite-environmental-index-for-assessing-the-impact-of-port-processes-on-environment-a-case-study-of-container-terminal
#14
Igor Kegalj, Luka Traven, Juraj Bukša
Environmental standards are not harmonized in ports and neither are the instruments used for the assessing the condition of environmental efficiency of a port system. The purpose of the research conducted in the framework of this paper is to propose the methodology for calculating the Port Environmental Index (IE ) which synthesizes all environmental aspects of port operations into a single value. The goals of the paper were the following: (1) to integrate the relevant environmental aspects of port activities and evaluate the impact of port terminal processes on the environment by calculating the IE and (2) to validate the index by applying it to a container terminal in the north-western part of Croatia...
September 15, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30218399/towards-zero-waste-production-in-the-paint-industry-wastewater-using-an-agro-based-material-in-the-treatment-train
#15
S Vishali, S K Roshini, M R Samyuktha, K Ashish Anand
An attempt has been made to evaluate the use of natural, agro-based material, Moringa oleifera as a coagulant in the treatment of recreated water-based paint effluent. The treatment train sequence comprising coagulation, flocculation, sedimentation, sand filtration, and membrane filtration was used. The efficiency was evaluated in terms of color and turbidity. The influence of experimental parameters such as eluent type, eluent concentration, coagulant dose, coagulant-eluate volume, initial effluent pH, and initial effluent concentration was examined...
September 14, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30218202/a-new-combination-for-the-determination-of-ultratrace-cadmium-solid-phase-microextraction-by-stearic-acid-coated-magnetic-nanoparticles-prior-to-batch-type-hydride-generation-atomic-absorption-spectrometry
#16
Nursu Aylin Kasa, Erhan Akkaya, Buse Tuğba Zaman, Gülten Çetin, Sezgin Bakirdere
Solid-phase microextraction method based on stearic acid-coated magnetic nanoparticle has been combined with batch-type hydride generation atomic absorption spectrometry (BT-HGAAS) system to determine cadmium at ultratrace levels. After the adsorption of cadmium ions onto stearic acid-coated magnetic nanoparticles, they were easily separated from the aqueous phase by means of a magnet. All the instrumental and experimental parameters such as pH of buffer solution, interaction period, concentration, and volume of NaBH4 were optimized...
September 14, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30218161/land-consumption-monitoring-an-innovative-method-integrating-sar-and-optical-data
#17
Sara Mastrorosa, Michele Crosetto, Luca Congedo, Michele Munafò
In this paper, the use of synthetic aperture radar (SAR) for the monitoring of land consumption is analyzed. The paper presents an automatic procedure that integrates SAR and optical data, which can be effectively used to generate land consumption maps or update existing maps. The main input of the procedure is a series of SAR amplitude images acquired over a given geographical area and observation period. The main assumption of the procedure is that land consumption is associated with an increase of the SAR amplitude values...
September 14, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30215141/characterization-of-sub-watershed-scale-stream-chemistry-regimes-in-an-appalachian-mixed-land-use-watershed
#18
Elliott Kellner, Jason Hubbart, Kirsten Stephan, Ember Morrissey, Zachary Freedman, Evan Kutta, Charlene Kelly
An exploratory study was conducted in an urbanizing, mixed-land-use Appalachian watershed. Six study sites, characterized by contrasting land use/land cover, were instrumented to continuously monitor stream stage. Weekly grab samples were collected from each site and analyzed for elemental composition via spectrometric and spectrophotometric methods. Additional physico-chemical parameters were measured in situ. Data were analyzed using a suite of statistical methods, including hypothesis testing, correlation analysis, and principal components analysis (PCA)...
September 13, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30209625/wtp-and-wwtp-sludge-management-a-case-study-in-the-metropolitan-area-of-campinas-southeastern-brazil
#19
Rodrigo Custodio Urban, Ricardo de Lima Isaac
Disposal of sludges generated at water treatment plants (WTPs) and wastewater treatment plants (WWTPs) located in highly urbanized regions challenges water industry. Legal restrictions based on public health and sustainability push managers forward in order to find beneficial use markets rather than deficit and high-cost landfilling. A GIS-based linear optimization method for sludge management was firstly proposed. The metropolitan area of Campinas belongs to the watershed of the rivers Piracicaba, Capivari, and Jundiaí (PCJ), which comprises 76 municipalities, representing over 5 million urban consumers, supplied by 100 WTPs and 116 WWTPs...
September 12, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/30209621/temperature-leads-to-annual-changes-of-plant-community-composition-in-alpine-grasslands-on-the-qinghai-tibetan-plateau
#20
Hasbagan Ganjurjav, Elise S Gornish, Guozheng Hu, Yunfan Wan, Yue Li, Luobu Danjiu, Qingzhu Gao
In most grassland ecosystems, the effects of mean temperature increase on plant communities have been investigated; however, the effects of climate fluctuations on local plant community metrics are much less well understood. We conducted a nine-year survey in alpine meadow and alpine steppe to investigate the effects of inter-annual temperature and precipitation variation on plant community composition, species richness, and species diversity on the central Qinghai-Tibetan Plateau, China. We unexpectedly found that annual variability of growing season temperature, and not precipitation, is a driver of plant composition and species diversity in both habitats...
September 12, 2018: Environmental Monitoring and Assessment
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