scholarly journals SCIENTIFIC SUBSTANTIATION OF MAXIMUM ALLOWABLE CONCENTRATION OF CYFLFENAMID IN WATER OF HOUSEHOLDS-DRINKING AND CULTURAL-DOMESTIC APPOINTMENTS RESERVOIRS

2017 ◽  
Vol 13 (1-2) ◽  
pp. 93-97
Author(s):  
P.V. Stavnichenko ◽  
А.М. Antonenko ◽  
T.I. Zinchenko ◽  
S.M. Tkachenko ◽  
V.G. Bardov

Relevance. Water is one of the most important elements of the biosphere on the quality of which largely depends on human health. The quality of water in surface water bodies is one of the decisive factors in the sanitary and epidemiological well-being of the population. Objective of our study was a scientific substantiation of the maximum allowable concentration of cyflufenamid in water of households-drinking and cultural-domestic appointments reservoirs. Materials and methods. We conducted a laboratory hygienic experiment using organoleptic, sanitary-chemical, sanitary-microbiological methods of analysis. The data obtained in the experiment were processed by the methods of variation statistics. Results. The investigated solutions with different cyflufenamid concentrations had high transparency (>30 cm), their colority did not differ significantly from the control tap water. The influence of cyflufenamid on the intensity of the process of biochemical oxygen consumption, changes in the number of saprophytic microflora, the dynamics of mineralization of nitrogen-containing substances, the level of dissolved oxygen in water and the changes in the active reaction of the medium (pH) at its concentrations from 0,005 to 0,5 mg/dm3 were studied. It was noted that the process of mineralization of organic substances in water in the presence of cyflufenamid had a logical sequence of stages. The process of mineralization ended until the 30th day of observation. Conclusion. The maximum allowable concentration of cyflufenamid in water households-drinking and cultural-domestic appointments reservoirs has been established at the level of 0,005 mg/ m3 according to general sanitary limiting index.

2015 ◽  
Vol 10 (3) ◽  
pp. 781-791
Author(s):  
Faisal A Salih ◽  
Nasih Othman ◽  
Faridon Muhidin ◽  
Attallah Kasem

Good drinking water quality is essential for the well being of all population. The object of this study was to assess the quality of drinking water in the city of Sulaimaniyah in Iraqi Kurdistan. A total of 2342 water samples from various sources providing water to the city collected during 2014 were analyzed for physiochemical and biological parameters using standard methods. Fifty percent of the samples were from, Dukan project after treatment, 26% from Dukan project before treatment, 8% from Sarchinar, 6% from city storage tanks and networks and 10% were brought by citizens from various sources.The total hardness of the city water at source after treatment was 186.3 (95% CI 179.6, 192.8), TDS was 150.6 (95% CI 149.5, 151.7), and PH was 7.74(95% CI 7.36, 8.12). The total hardness, TDS, turbidity and Calcium were considerably higher in Sarchinar than Dukan (231 vs. 161, 242 vs. 147, 2.7 vs. 1.8 and 72.9 vs. 44.5 mg/l respectively), while Sodium and Potassium were higher in Dukan than Sarchinar (3.4 vs. 1.4 and 1.4 vs. 0.08 mg/l respectively). Samples from the two supply lines from filtrated Dukan water project were compared in relation to physic-chemical characteristics and there were no significant differences in any of the parameters except PH, TDS and turbidity which were different. TDS of Dukan 1 project was slightly higher than Dukan 2 (148.9 vs. 145.9 respectively). Similarly turbidity of Dukan 1 was twice that of Dukan 2 (2.4 vs. 1.2). Overall, the parameter values were within standard ranges except Cl1- which was 19.8 (Iraqi standard 10 ppm) and dissolved oxygen which was 9 ppm (Iraqi standard 7-8 ppm). Microbiological results showed that 973 of the samples (91%) had an MPN of zero, 61 (5.7%) had an MPN of 2.2 and 35 (3.3%) had a higher MPN. The mean chlorination level for all samples was 1.12 (SD 0.44) .We can conclude that both Sarchinar and Dukan waters are acceptable for drinking purposes according to the parameters evaluated. We recommend to include monitoring heavy metals like Hg, Pb, Ni, Cr, Cd, Ag in the future; to consolidate the existing reporting system and to included samples from household tap water for analysis.


Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3841
Author(s):  
Józef Ober ◽  
Janusz Karwot

Security of supply of water, which meets the quality parameters specified in applicable standards, is now the basis for the functioning of most societies. In addition to climatic, biological, chemical, and physical hazards, it is worth paying attention to consumers’ subjective perception of the quality of tap water supplied in the area of Poland. The article discusses various activities related to water resources management and analyses the results of an evaluation of selected quality parameters of tap water in Poland. A novelty on a European scale here is an examination of the evaluation of these parameters based on potential seasonal differences (spring, summer, autumn, winter). For the first time in the world literature, PROFIT analysis was used to evaluate selected parameters of tap water quality. The aim of the article was to present a model for the evaluation of the parameters of tap water supplied in different seasons of the year in Poland. Due to the complexity of the research aspects, a mixed-methods research procedure was used in which a literature review was combined with a survey and statistical analysis. For the purpose of the survey, an original survey questionnaire called “Survey of customer opinions on selected parameters of tap water supplied in Poland” was developed especially for this study. The conducted research confirmed the adopted hypothesis that the results of evaluation of selected tap water parameters vary depending on the period (spring, summer, autumn, winter) in Poland. The model developed by means of PROFIT analysis makes it possible to highlight to water suppliers the specific quality parameters in particular seasons of the year (spring, summer, autumn, winter), which may improve the quality of water supplied in Poland and thus, in the long-term perspective, increase the level of satisfaction of water recipients and confidence in drinking tap water in Poland.


2018 ◽  
Vol 7 (4.20) ◽  
pp. 477
Author(s):  
Zahraa Ali Hammood ◽  
Elaf Jassim Mahan ◽  
Halah Kadhim Tayyeh

This research included evaluation quality of water by utilizing Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI) by analyzing many chemical and physical properties of tap water (inside houses) for five regions (AL Musayab, AL Kasim, AL kifil, AL Mahawil and Hilla Center) in Babylon Governorate, Iraq. The properties included (PH, temperature, Ec, Hardness, turbidity, T.D.S, Ca, So4, Mg) through three months (January, February, and March) / 2017. The evaluated amounts of CCME WQI proved that the quality of water round five regions were good through study interval and calculated amounts of properties were in Iraqi standards of drinking water (No. 417,2001) except Ca and turbidity.   


2018 ◽  
Vol 19 (1) ◽  
pp. 303-312
Author(s):  
A. Szuster-Janiaczyk ◽  
J. Bylka

Abstract The paper presents a detailed analysis of the quality of water pumped into a network and sampled from 39 monitoring points located on the network. A difference in the quality of water sampled from two different sources was demonstrated, as well as the impact of the mixing of the two waters in the water distribution system (WDS) on tap water quality. A mathematical model was used to identify the zones of water mixing and the areas of unfavourable hydraulic conditions (low flow rates and long retention times).


EDIS ◽  
2019 ◽  
Vol 2019 (3) ◽  
Author(s):  
Tatiana Borisova ◽  
Syed Irfan Ali Shah ◽  
Tara Wade ◽  
Xiang Bi ◽  
Kelly Grogan

Florida water-resource professionals deciding whether to implement a costly water protection program or to invest in better tap water treatment technology may wonder: Are such investments justified? What are the benefits of the program or investment decision? Just how highly do Floridians value their water? This 5-page fact sheet written by Tatiana Borisova, Syed Irfan Ali Shah, Tara Wade, Xiang Bi, and Kelly Grogan and published by the UF/IFAS Food and Resource Economics Department reviews studies that help assess the value Floridians assign to maintaining or improving the quality of the water supply. http://edis.ifas.ufl.edu/fe1059


2021 ◽  
Author(s):  
Santosh Mehrotra

In 2011, India had more phone users (around 54 per cent of households) and television access (33 per cent) in rural areas than people with access to tap water (31 per cent) and toilet facilities (31 per cent), according to Census 2011. This clearly indicates the failure of government programmes to change the centuries-old practice of defecation in the open. This neglect of safe sanitation has had catastrophic outcomes in terms of human well-being. This case study is an analysis of the latest central government Swachch Bharat Mission - Gramin (Clean India Mission - Rural) (or SBM-G), which has achieved much greater success than any hitherto government effort in providing access to and use of toilets, especially in rural areas where the need is greatest. However, any conception of achieving ODF status, or free of open defecation, in a village (or any limited geography) is more than merely building toilets. The Sanitation Learning Hub commissioned case studies of sanitation campaigns in both India and Nepal, drawing out the lessons learnt for other countries wishing to implement similar initiatives. Both case studies focus on how target setting and feedback and reporting mechanisms can be used to increase the quality of campaigns.


Author(s):  
Fadhil Al-Ibraheeimi ◽  
Naseer Majid ◽  
Amel Ajel Ali

The experiment was conducted in Kufa district Najaf Province fromthe periodo (1/8/2015)to(13/8/2015) to find out the effect of water amount used for seeds irrigation (50,100,150 ml water / kg soil).And water quality(drang water 2900 Micro Siemens \ cm, river water 673 EC) Micro Siemens \ cm), tap water (EC 627 Micro Siemens \ cm) on seed weight and germination percentage Oryzasativa L.by taking Sample between other day from sowing till 13thday Results showed that there were an increase in seed weightwith irrigation with 150 ml/kg soil and tap water it reach the percentage of %311.1 ،173.3% ,respectively.Germination percentage also increase to reach 100% at the 6th dayfrom sowing with treatment 1 Mean while germination percentage of 100%was appear in the8th day but with aquality of water of 100 ml/kg Soil .This situation continued until the end of experiment after13 th day of Sowing Nevertheless ,Seed weight was different at the end of the experiment at the above two treatment whilel, germination Percentage 100% after passing 13 day for tap Water treatment.


2020 ◽  
Vol 16 (4) ◽  
pp. 26-34
Author(s):  
K.N. Polivanova

The article traces the logical sequence of the emergence of the constructs “quality of life” and “well-being” in the public discourse. It is shown that gradually since the end of the 60s of the XX century, the socio-economic and public sphere is turning to invest in education and health, indicators of well-being are being developed. Within the framework of the economy of well-being, it is shown that contributions to the quality of life enhance economic development. The analysis of the wide-scale PISA project shows an increasing body of data on the well-being of schoolchildren. It is shown that over the course of six successive waves of the PISA project, research interest has expanded from recording academic achievements in different countries to indicators of the quality of the educational environment and then to discussing the well-being of schoolchildren. Initially, the characteristics of the school environment were analyzed as factors that contribute to improving academic achievement. Since 2015, well-being has been studied as such, recognizing the importance of a student's well-being and experiences outside of their relationship to achievement. The well-being of schoolchildren is described as a set of its components such as cognitive, psychological, social, physical, and material. The article states that this turn indicates a significant change in the “education” construct itself: it is now considered not only as a preparation for the future life through the achievement of educational results by the student, but also as a part of the life cycle, valuable in itself.


2014 ◽  
Vol 29 (2) ◽  
pp. 145-153 ◽  
Author(s):  
Slavica Vukovic ◽  
Dusanka Indjic ◽  
Sonja Gvozdenac

Modern agriculture relies on simultaneous application of fungicides, insecticides, fertilizers and adjuvants. The selection of compounds for tank-mixes has been rarely studied and it presents a risk in the application of pesticides but the quality of water should also be considered. The aim of this study was to assess the phytotoxic effects of several fungicides, insecticides, a complex fertilizer, an adjuvant and their mixtures on pepper (Capsicum annuum L.) as a test plant, depending on water quality. The effects of the pesticides: azoxystrobin (Quadris, 0.75 l/ha), mancozeb (Dithane M-70, 2.5 kg/ha), thiamethoxam (Actara 25-WG, 0.07 kg/ha) and cypermethrin (Cipkord EC-20, 0.3 l/ha), a complex fertilizer (Mortonijc plus /hereinafter: M+/ 3kg/ha), an adjuvant (Sillwet 77-L, 0.1 l/ha) and their mixtures, were assessed depending on the quality of water (well water - slightly alkaline, very hard and with high nitrite content; tap water - neutral and slightly hard; surface water - alkaline, slightly hard and with high content of nitrite and ammonia) using a puncture method. The effects were assessed after seven days by measuring the diameter of chlorosis and/or necrosis around puncture sites, and were expressed in mm2. The significance of differences between treatments was analyzed using a one-way ANOVA (LSD 0.05 %). In the slightly alkaline and very hard well water, all spray liquids containing Dithane M-70 caused a significant increase in leaf chlorosis area (from 6.0 to 25.2 mm2), compared to the control and other treatments. In the neutral and slightly hard tap water, all spray liquids containing Dithane M-70 caused a significant increase in leaf chlorosis (5.3 to 7.9 mm2) compared to the control and the other spray liquids, although its phytotoxicity in that water was at a lower level than it was in well water. However, in the weakly alkaline and slightly hard surface water from the river Sava, Dithane M-70, Dithane M-70 + Actara WG-25, Dithane M-70 + Sillwet L-77, and Dithane M-70 + Actara 25-WG + M+ showed a significant increase in phytotoxicity, compared to the control.


2017 ◽  
Vol 10 ◽  
pp. 117862211773344 ◽  
Author(s):  
Ghassan Adham AL-Dulaimi ◽  
Mohammad Khairi Younes

Safe drinking water is crucial for the well-being of current and future generations. This study aims to evaluate the quality of potable water in Baghdad city. Furthermore, this study compares the quality of tap and bottled water. Baghdad city was divided into 4 districts based on the water source, and 40 water samples were collected from each district. Moreover, the most popular bottled water brands were sampled and compared with the tap water samples. The quality of the analyzed potable water samples varied based on the water source. The total dissolved solid (TDS) levels exceed the palatable (>600 ppm) water levels in some districts. In addition, the concentration of sulfate was relatively high in both tap and bottled water and ranged from 200 to 330 ppm. The bottled water quality was within the acceptable limits set by the World Health Organization, but the TDS levels were relatively high. The hardness, Cl−, Pb2+, and bacteria contents in both tap and bottled water were within the standard limits. Finally, it is important to conduct radiological analyses in the future to investigate the effect of wars on Iraqi water resources.


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