scholarly journals The Relationship of Water Quality to Epipelic Diatom Assemblages in Cebong Lake, Dieng Indonesia

2021 ◽  
Author(s):  
Tri Soeprobowati ◽  
Hartuti Purnaweni ◽  
Jumari Jumari ◽  
Kenanga Sari
Keyword(s):  
Water Quality ◽  
Diatom Assemblages ◽  
Relationship Of ◽  
The Relationship

Research on Reservoir Outflow Impacting Reservoir Environmental Capacity

2012 ◽  
Vol 518-523 ◽  
pp. 4043-4046
Author(s):  
Fu Chun Zhou ◽  
Yu Yan Fan ◽  
Guo Dong Liu ◽  
Long Hui Zhang
Keyword(s):  
Fluid Dynamics ◽  
Water Quality ◽  
Computational Fluid Dynamics ◽  
Environmental Capacity ◽  
Reservoir Water ◽  
Reservoir Flow ◽  
Water Environmental Capacity ◽  
Relationship Of ◽  
The Relationship ◽  
Calculation Software

Reservoir outflow is an important factor not only impacting reservoir flow field, but also affecting reservoir water environmental capacity. This paper, taking a reservoir as an example, makes use of computational fluid dynamics and water quality calculation software calculating the reservoir outflow quality in different discharge width, and calculating the corresponding environmental capacity of the reservoir under different discharge width of the reservoir and the flow concentration. The relationship of the outflow width, outflow discharge and water environmental capacity is analyzed.

Assessing the relationship of background factors governing the water quality of an agricultural watershed with changes in catchment property (W-Hungary)

2015 ◽  
Vol 521 ◽  
pp. 460-469 ◽  
Author(s):  
István Gábor Hatvani ◽  
József Kovács ◽  
László Márkus ◽  
Adrienne Clement ◽  
Richárd Hoffmann ◽  
...  
Keyword(s):  
Water Quality ◽  
Agricultural Watershed ◽  
Background Factors ◽  
Relationship Of ◽  
The Relationship

scholarly journals The role of health surveillance in the management of water quality in rural properties in seven municipalities of the Region of Paraná

2021 ◽  
Vol 17 (6) ◽  
Author(s):  
Tiago Vinicius Silva Athaydes ◽  
Jefferson de Queiroz Crispim ◽  
Mauro Parolin
Keyword(s):  
Water Quality ◽  
Rural Areas ◽  
Urban Areas ◽  
Contaminated Water ◽  
Regional Office ◽  
Main Partner ◽  
Relationship Of ◽  
The Relationship ◽  
Structured Questionnaire

Sanitation in rural areas in Brazil is still very precarious, with deficits greater than in urban areas. In this sense, the central objective of this research is to evaluate the role of the Municipal Surveillance in the management of water quality in rural properties in the Midwestern region of Paraná, covering the beginning of the monitoring of water quality, the relationship of the Consolidation Ordinance No. 5 of 2017 of the Ministry of Health regarding the choices of parameters on potability indices in relation to the parameters analyzed in the Surveillance, the presence of outbreaks due to diseases arising from the consumption of contaminated water, the demand by residents and the partners who contribute to the realization of these activities. The data were obtained through the application of a semi-structured questionnaire, through the 11th Health Regional Office of Campo Mourão. It was presented that the municipalities have acted in the monitoring of water quality in an uneven way at the beginning of the activities, following the parameters of the Ordinance. The municipalities had demands and demands from residents and counted on the 11th Health Regional Office as the main partner in the monitoring support. Only Iretama presented an outbreak due to the consumption of contaminated water.

scholarly journals ASSESSMENT OF SEAGRASS PERCENT COVER AND WATER QUALITY USING UAV IMAGES AND FIELD MEASUREMENTS IN BOLINAO, PANGASINAN

2019 ◽  
Vol XLII-4/W19 ◽  
pp. 233-240
Author(s):  
M. K. M. R. Guerrero ◽  
J. A. M. Vivar ◽  
R. V. Ramos ◽  
A. M. Tamondong
Keyword(s):  
Water Quality ◽  
Regression Analysis ◽  
Chlorophyll A ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Support Vector ◽  
Percent Cover ◽  
Chl A ◽  
Relationship Of ◽  
The Relationship

Abstract. The sensitivity to changes in water quality inherent to seagrass communities makes them vital for determining the overall health of the coastal ecosystem. Numerous efforts including community-based coastal resource management, conservation and rehabilitation plans are currently undertaken to protect these marine species. In this study, the relationship of water quality parameters, specifically chlorophyll-a (chl-a) and turbidity, with seagrass percent cover is assessed quantitatively. Support Vector Machine, a pixel-based image classification method, is applied to determine seagrass and non-seagrass areas from the orthomosaic which yielded a 91.0369% accuracy. In-situ measurements of chl-a and turbidity are acquired using an infinity-CLW water quality sensor. Geostatistical techniques are utilized in this study to determine accurate surfaces for chl-a and turbidity. In two hundred interpolation tests for both chl-a and turbidity, Simple Kriging (Gaussian-model type and Smooth- neighborhood type) performs best with Mean Prediction equal to −0.1371 FTU and 0.0061 μg/L, Root Mean Square Standardized error equal to −0.0688 FTU and −0.0048 μg/L, RMS error of 8.7699 FTU and 1.8006 μg/L and Average Standard Error equal to 10.8360 FTU and 1.6726 μg/L. Zones are determined using fishnet tool and Moran’s I to calculate for the seagrass percent cover. Ordinary Least Squares (OLS) is used as a regression analysis to quantify the relationship of seagrass percent cover and water quality parameters. The regression analysis result indicates that turbidity has an inverse relationship while chlorophyll-a has a direct relationship with seagrass percent cover.

Research on Method of Confirming Typical SWMM Water Quality Parameters

2011 ◽  
Vol 243-249 ◽  
pp. 5308-5313 ◽  
Author(s):  
Hai Yan Li ◽  
Li Tao Yue
Keyword(s):  
Water Quality ◽  
Rate Constant ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Model Parameters ◽  
Rainfall Runoff ◽  
Relationship Of ◽  
The Relationship ◽  
Swmm Model ◽  
Buildup Rate

Taking a roof in Shanghai for example, through the comparison of the relationship of rainfall and SS load in a single rainfall runoff obtained by experiment and SWMM simulation, typical water SWMM model parameters (maximum buildup possible C1, buildup rate constant C2, washoff coefficient S1 and washoff exponent S2) could be obtained. With this method, other cities’ water quality parameters for SWMM simulation could be confirmed, so as to provide basis for simulating water quality by SWMM.

scholarly journals Komunitas makrozoobentos dan kaitannya dengan kualitas air aliran sungai Senggarang, Kota Tanjungpinang

2021 ◽  
Vol 8 (2) ◽  
pp. 103
Author(s):  
Aknes Safitri ◽  
Winny Retna Melani ◽  
Wahyu Muzammil
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
River Flow ◽  
Environmental Parameters ◽  
Small Island ◽  
Brackish Waters ◽  
Relationship Of ◽  
The Relationship ◽  
Macrozoobenthic Community

Senggarang is one of the coastal villages in Tanjungpinang City which has a river that flows from the upstream downstream into the sea. The flow of the Senggarang river has distinctive characteristics that are commonly found in small island waters, namely having a relatively short upstream to downstream distance, and the downstream part is influenced by tidal conditions. Various activities along the Senggarang river flow would cause changes in water quality which would impact the presence of macrozoobenthic. The objective of this study was to determine the relationship between the macrozoobenthic community and the water quality of the Senggarang river. Macrozoobenthic sampling, and environmental parameters were carried out using random sampling methods. The results of this study were obtained 27 species from 6 phylum, namely phylum Arthropoda 13 species, phylum Ciliophora 3 species, phylum Echinodermata 1 species, phylum Mollusca 4 species, phylum Nematoda 5 species, and phylum Tardigrada 1 species. The average macrozoobenthic density is 172 ind./ m3 for freshwater and 704 ind./ m3 for brackish waters. The average diversity value for freshwater is 1.29 and 2.16 waters with medium salinity, the average uniformity value of 0.85 freshwater and 0.94 of high in brackish waters, the average dominance value of 0.32 freshwater and 0.13 of low in brackish waters. The relationship of macrozoobenthos with the quality of freshwater based on PCA analyses related to temperature and dissolved oxygen, in brackish waters to temperature, dissolved oxygen, and current.Keywords: Macrozoobenthic community, PCA, River flow, Water quality

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