scholarly journals A review on Cryptosporidium and biofilm interactions

2020 ◽  
Author(s):  
M. Lefebvre ◽  
R. Razakandrainibe ◽  
I. Villena ◽  
L. Favennec ◽  
D. Costa
Keyword(s):  
Water Quality ◽  
Surface Roughness ◽  
Physicochemical Parameters ◽  
Water Quality Assessment ◽  
Ionic Concentration ◽  
Electrostatic Repulsion ◽  
Biological Interactions ◽  
Flow Shear ◽  
Waterborne Outbreak ◽  
Flow Shear Stress

Biofilms are increasingly implicated as suspected to play a major role in waterborne cryptosporidiosis. This review aims to synthesize all currently available data on interactions between Cryptosporidium oocysts and biofilms. Initially described following a waterborne outbreak, the integration of Cryptosporidium oocysts in biofilm has been well demonstrated. Biofilms appear important in the dissemination/protection of oocysts in the environment. Consequently, it has been suggested that substrate-associated biofilms should be systematically considered in oocyst water quality assessment. The influence of physicochemical parameters has been studied on oocyst biofilm retention. Biofilm surface roughness, ionic concentration (especially Ca2+), laminar/turbulent flow, shear stress and electrostatic repulsion forces appear important to consider regarding oocyst release from biofilm. However, data analysis carried out during this review, also revealed important gaps in biological interactions within biofilms offering many perspectives for future works.

WATER QUALITY ASSESSMENT OF SHAHPURA LAKE, BHOPAL (M.P.) INDIA USING BENTHIC MACRO-INVERTEBRATES

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
M. ANIECE WANI ◽  
MUKESH DIXIT
Keyword(s):  
Water Quality ◽  
Qualitative Analysis ◽  
Quality Assessment ◽  
Water Body ◽  
Physicochemical Parameters ◽  
Water Quality Assessment ◽  
Sewage Water ◽  
Rain Water ◽  
Total Hardness ◽  
Pollution Status

Shahapura Lake is manmade perennial situated in Bhopal (M.P.) India. The main source of water to this lake is rain water and sewage water from residential colonies. Samples were collected and analyzed to check the pollution status of Shahpura Lake. Present study deals with quantitative and qualitative analysis of macro-zoobenthic invertebrates of the lake together with the assessment of physicochemical parameters. The water quality was assessed by using BMWP and ASPT scoring index and physicochemical parameters as per APHA. During investigations total 34 genera were found belonging to 24 families respectively. The presence of higher number of oligochaetes and chironomids (pollution indicating species) alongwith the scores obtained by BMWP and ASPT index indicated that the water body was polluted. The detailed study was further carried out and correlated with the findings of physicochemical parameters like DO, BOD, COD, TDS, Alkalinity, Chloride, Carbonate, Bicarbonate, Calcium and Total hardness etc.

scholarly journals Analysis of Water Pollution Using Different Physicochemical Parameters: A Study of Yamuna River

2020 ◽  
Vol 8 ◽  
Author(s):  
Rohit Sharma ◽  
Raghvendra Kumar ◽  
Suresh Chandra Satapathy ◽  
Nadhir Al-Ansari ◽  
Krishna Kant Singh ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Physicochemical Parameters ◽  
Water Quality Assessment ◽  
Total Coliform ◽  
Wastewater Management ◽  
Yamuna River ◽  
Trend Forecasting ◽  
Central Pollution Control Board ◽  
Density Population

The Yamuna river has become one of the most polluted rivers in India as well as in the world because of the high-density population growth and speedy industrialization. The Yamuna river is severely polluted and needs urgent revival. The Yamuna river in Dehradun is polluted due to exceptional tourist activity, poor sewage facilities, and insufficient wastewater management amenities. The measurement of the quality can be done by water quality assessment. In this study, the water quality index has been calculated for the Yamuna river at Dehradun using monthly measurements of 12 physicochemical parameters. Trend forecasting for river water pollution has been performed using different parameters for the years 2020–2024 at Dehradun. The study shows that the values of four parameters namely, Temperature, Total Coliform, TDS, and Hardness are increasing yearly, whereas the values of pH and DO are not rising heavily. The considered physicochemical parameters for the study are TDS, Chlorides, Alkalinity, DO, Temperature, COD, BOD, pH, Magnesium, Hardness, Total Coliform, and Calcium. As per the results and trend analysis, the value of total coliform, temperature, and hardness are rising year by year, which is a matter of concern. The values of the considered physicochemical parameters have been monitored using various monitoring stations installed by the Central Pollution Control Board (CPCB), India.

scholarly journals Well Water Quality Assessment: A Case of Gaba and Zuma Communities, Bwari Area Council, Abuja, Nigeria

2020 ◽  
Vol 24 (6) ◽  
pp. 967-974
Author(s):  
C.C. Ezeh ◽  
G.A. Udourioh ◽  
J.C. Echoke ◽  
O.C. Matthews-Amune
Keyword(s):  
Water Quality ◽  
Quality Assessment ◽  
Physicochemical Parameters ◽  
Water Quality Assessment ◽  
World Health ◽  
Well Water ◽  
The World ◽  
Development Goals ◽  
Health Organization ◽  
Dug Well

The sixth Sustainable Development Goals (SDGs) underscores the need for clean, accessible water and good sanitation for all as an essential part of the world we live in. However, water scarcity still affects more than 30% of the world’s population. Many communities, especially in Africa, have resorted to substandard and cheaper sources of water for consumption, and hand dug well is one of them. In this study, the physicochemical, biochemical and microbiological assessment of well water samples from Gaba 1, Gaba 11 and Zuma 11 communities in Bwari Area Council, Abuja, Nigeria were carried out as a case study to determine the quality of well water. The American Public Health Association (APHA) standard analytical methods were adopted and results were compared with the World Health Organization (WHO) standards and Nigerian Standard for Drinking Water Quality (NSDWQ). From the results obtained for the physicochemical parameters, turbidity and colour did not meet up with the WHO and NSDWQ standard. Colour ranged from 330±20PtCo to 57.60±14.50PtCo as against 15PtCo by WHO and NSDWQ, turbidity ranged from 45.2±0.2NTU to 7.19±0.4NTU as against 5NTU by WHO and NSDWQ. Other physicochemical parameters were within WHO and NSDWQ limit. The bacteriological and biochemical results showed the presence of E-coli and other coliforms in all the samples. The total coliforms count for all the wells ranged from 1.55x102 to 1.775x102 CFU/ml, indicating a noncompliance to the zero count per 100ml by WHO. Well water from these communities pose a great health risk to the consumers. Keywords: Well water, Quality assessment, Physicochemical parameters, Microbiological, WHO.

scholarly journals Water Quality Assessment of the Morava e Binçës River Based on the Physicochemical Parameters and Water Quality Index

2018 ◽  
Vol 19 (6) ◽  
pp. 104-112
Author(s):  
Milaim Musliu ◽  
Astrit Bilalli ◽  
Bujar Durmishi ◽  
Murtezan Isamili ◽  
Halil Ibrahimi
Keyword(s):  
Water Quality ◽  
Quality Assessment ◽  
Water Quality Index ◽  
Physicochemical Parameters ◽  
Quality Index ◽  
Water Quality Assessment

scholarly journals Phytoplankton and Zooplankton Diversity and Water Quality Assessment of Three Ponds in Hooghly District (West Bengal, India)

2021 ◽  
Author(s):  
Soudip Karmakar
Keyword(s):  
Water Quality ◽  
Quality Assessment ◽  
Physicochemical Parameters ◽  
Organic Waste ◽  
West Bengal ◽  
Water Quality Assessment ◽  
Wiener Index ◽  
Summer Season ◽  
Zooplankton Abundance ◽  
Pollution Levels

Abstract The present study focuses on the Phytoplankton and Zooplankton Diversity and Water quality assessment of three ponds in Hooghly District using the physiochemical and biological parameters, with due consideration to the Planktonic species. The study was carried out during the Spring and Summer season for a period of two months from 28th March to 28th July, 2020. The pollution levels of the ponds were determined with the help of Palmer’s Indices and were further supported by the physicochemical parameters. The Plankton assessment (qualitative) was associated with the physicochemical parameters like pH, TDS, EC, Calcium, Chlorides, Dissolved Oxygen, Phosphates, Nitrates, Bromides and Nitrites. Each pond are a well-managed fishpond, showed and Highest Shannon-Wiener Index diversity value 1.917, contaminated with organic waste matter, from adjacent cattle sheds, show higher Zooplankton abundance.

scholarly journals Linking Macroinvertebrates and Physicochemical Parameters for Water Quality Assessment in the Lower Basin of the Volta River in Ghana

2021 ◽  
Author(s):  
Michael Onwona Kwakye ◽  
Feng-Jiao Peng ◽  
Jonathan N. Hogarh ◽  
Paul J. Van den Brink
Keyword(s):  
Water Quality ◽  
Benthic Macroinvertebrates ◽  
Environmental Variables ◽  
Physicochemical Parameters ◽  
Limit Of Detection ◽  
Permutation Test ◽  
Juvenile Fish ◽  
Principal Component ◽  
Water Quality Assessment ◽  
Quality Standard

AbstractThe health of the lower basin of the Volta River in Ghana was evaluated in January–February and May–June 2016 using physicochemical parameters and benthic macroinvertebrates sampled at 10 locations. Selected environmental variables were compared to accepted environmental water quality standard values where applicable. Principal component analysis (PCA) and redundancy analysis (RDA) were used to analyse the association between the benthic macroinvertebrates distribution and physicochemical variables. Pesticide concentrations were generally below the limit of detection 0.01 and 0.005 µg/L for organophosphate/synthetic pyrethroid and organochlorines respectively. Nutrient levels were also generally low; however, significant differences existed between the values of physicochemical parameters at the different sampling sites and seasons (Monte Carlo permutation test; p = 0.002), as well as between the abundance of macroinvertebrates at the different sites and seasons (p = 0.002). The environmental variables dissolved oxygen (DO), phosphate, pH, substratum (p < 0.05), turbidity, conductivity, total dissolved solids, total solids and nitrate (0.05 < p < 0.10) significantly explained the variation in macroinvertebrate composition between sampling stations in the Volta River. Polypedilum fuscipenne, was positively correlated with turbidity and DO concentrations; Physa sp., Centroptilum sp., Centroptiloides sp., Phaon iridipennis and juvenile fish were positively correlated with nitrate concentration and pH and negatively correlated with turbidity and DO. Polluted sites were dominated by the snail Lymnaea glabra. This demonstrates that physicochemical parameters and macroinvertebrates could be applied to describe the water quality and improve the biomonitoring for water resources management and the environmental protection in the Lower Volta River.

Surface Water Quality Assessment. Case Study: Târnava Mare River, Mediaș Town-Romania

2011 ◽  
Vol 4 (5) ◽  
pp. 70-72
Author(s):  
Cristina Roşu ◽  
◽  
Ioana Piştea ◽  
Carmen Roba ◽  
Mihaela Mihu ◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Quality Assessment ◽  
Surface Water Quality ◽  
Water Quality Assessment
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