A review on the influence of drinking water quality towards human health

An adequate supply of safe drinking water is one of the major prerequisites for a healthy life. Inadequate of safe drinking water produce waterborne disease and a major cause of death in many parts of the world, particularly in children. Therefore, it must be treated properly before it can be used and consumed. This chapter provides the guidelines of important parameters for drinking water standard in order to ensure the safeness of drinking water. All the selected parameters were elaborated on the effect of high concentration if human consume the drinking water directly

The role of the motility of Methylobacterium in bacterial interactions in drinking water

Bacterial motility is one important factor that affects biofilm formation. In drinking water there are key bacteria in aggregation, whose biology acts to enhance the formation of biofilms. However, it is unclear whether the motility of these key bacteria is an important factor for the interactions between bacteria in drinking water, and, subsequently, in the formation of aggregates, which are precursors to biofilms. Thus, the role of the motility of one of these key bacteria, the Methylobacterium strain DSM 18358, was investigated in the interactions between bacteria in drinking water. The motility of pure Methylobacterium colonies was initially explored; if it was affected by the viscosity of substrate, the temperature, the available energy and the type of substrate. Furthermore, the role of Methylobacterium in the interactions between mixed drinking water bacteria was investigated under the mostly favourable conditions for the motility of Methylobacterium identified before. Overall, the motility of Methylobacterium was found to play a key role in the communication and interactions between bacteria in drinking water. Understanding the role of the motility of key bacteria in drinking water might be useful for the water industry as a potential tool to control the formation of biofilms in drinking water pipes

Utility Customers\u27 Views of the Consumer Confidence Report of Drinking Water Quality

The author evaluates consumer understanding of water quality reports provided to them by their drinking water utility under the U.S. Safe Drinking Water Act Amendments of 1996

Viruses and drinking water

There is no evidence to indicate that there is a risk of acquiring a virus infection through the consumption of properly treated drinking water, provided the integrity of the distribution system is maintained and there is no post-treatment contamination. The consumption of inadequately treated, untreated or post-treatment contaminated water is, however, associated with a risk of hepatitis A, hepatitis E and viral gastroenteritis. The use of the standard bacterial indicators for water monitoring provides an adequate safeguard against viral contamination

Using temporary water to resupply fresh water (on example Kanaka SCC)

In boarding houses, located at the mouth of the Kanaka beam (SCC), the problem of provision with fresh drinking water worsened. So far, the provision with drinking water was carried out with water wells from the aquifer at a depth of up to 15 m from the earth surface

FAKTOR - FAKTOR YANG BERHUBUNGAN DENGAN KUALITAS BAKTERIOLOGIS AIR MINUM ISI ULANG DI KABUPATEN JEPARA

Air merupakan kebutuhan mutlak bagi kehidupan manusia dan makhluk hidup lainnya. Kebutuhan air dapat diatasi dengan mengembangkan usaha air minum isi ulang. Departemen Kesehatan sudah melakukan pengujian secara laboratorium contoh air hasil pengolahan DAMIU di Jakarta dan diperoleh gambaran cemaran bakteri Coliform berkisar 10 % - 20 %. Idealnya air minum tidak mengandung bakteri patogen, oleh karena itu pengujian bakteriologis air minum isi ulang merupakan upaya untuk mengetahui keamanan air minum sebelum dikonsumsi. Indikator yang digunakan adalah bakteri Coliform dan Fecal coli. Penelitian ini bertujuan untuk mengidentifikasi kondisi air baku, kondisi peralatan, proses pengolahan, kondisi higiene dan sanitasi depot serta menganalisis faktor-faktor yang berhubungan dengan kualitas bakteriologis air minum isi ulang di Kabupaten Jepara. Jenis penelitian menggunakan metode Explanatory Research dengan pendekatan cross sectional. Populasi penelitian adalah seluruh depot air minum isi ulang yang ada di Kabupaten Jepara sebanyak 46 (empat puluh enam) DAMIU dan sampel yang digunakan adalah 28 sampel. Depot air minum isi ulang menggunakan sumber air baku dari mata air gunung Ungaran sebanyak 4 depot, mata air gunung Muria Kudus 10 depot, sumur artesis 13 depot dan PAM sebanyak 1 depot. Hasil pemeriksaan air baku yang tidak memenuhi syarat sebanyak 14,3 % atau 4 depot dan kualitas bakteriologis air minum yang tidak memenuhi syarat sebanyak 21,4 % atau 6 depot. Data tersebut kemudian dianalisis secara statistik menggunakan uji chi square didapatkan tidak ada hubungan antara kondisi air baku dengan kualitas bakteriologis air minum isi ulang (p value = 0,173 dan RP = 0,231), tidak ada hubungan antara kondisi peralatan dengan kualitas bakteriologis air minum isi ulang (p value = 0,648 dan RP = 2,00), tidak ada hubungan antara proses pengolahan dengan kualitas bakteriologis air minum isi ulang (p value = 0,655 dan RP = 1,733) dan ada hubungan antara kondisi higiene dan sanitasi depot dengan kualitas bakteriologis air minum isi ulang (p value = 0,022 dan RP = 7,727). Inspeksi terhadap depot air minum isi ulang lebih ditingkatkan frekuensinya yaitu rutin memeriksakan air baku setiap tiga bulan sekali dan air yang siap diminum setiap satu bulan sekali. Kata Kunci: Kualitas bakteriologis, air minum isi ulang FACTORS RELATED TO BACTERIOLOGICAL QUALITY OF REFILL DRINKING WATER AT JEPARA REGENCY Water is an absolute needs for human being's life and other creatures. The needs of water may be fulfilled by developing refill drinking water business. The Health Department has carried out an experiment in the laboratory following the sample of water as the product of DAMIU at Jakarta and it is known that the Coliform bacteria contained in the water ranges from 10 % - 20 %. Ideally, drinking water doesn't contain pathogen bacteria, therefore the bacteriological experiment upon refill drinking water is an effort to find out the safety of drinking water before being consumed. The Indicator used in the experiment is the Coliform and Fecal coli bacteria. The aim of the research is to identify the condition of standard water, equipments condition, processing activity, hygiene condition and depot sanitation and to analyze some factors with the bacteriological quality of refill drinking water at Jepara Regency. The research is a kind of an Explanatory Research with cross sectional approach. The population of this research is all refill drinking water depots at Jepara Regency it's 46 (fourty six) of DAMIU and sample used in research is 28 samples. Refilled drinking water depot whom used raw water source from Ungaran Mount wellspring were 4 depots, Muria Kudus Mount wellspring were 10 depots, artesian well were 13 depots and PAM was 1 depot. The treatment result of bacteriological examination of raw water indicated 14,3 % or 4 depots was not comply to standard and bacteriological quality or drinking water which not comply to standard was 21,4 % or 6 depots. Then, the data was statistically analyzed using chi square test, and got there no a association between standard water condition with the bacteriological quality of refill drinking water (p value = 0,173 and RP = 0,231), there no a association between equipments condition with the bacteriological quality of refill drinking water (p value = 0,648 and RP = 2,00), there no a association between processing activity with the bacteriological quality of refill drinking water (p value = 0,655 and RP = 1,733) and there was a association between hygiene condition and depots sanitation with bacterilogical quality of refill drinking water ( p value = 0,022 and RP = 7,727). The inspection upon refill drinking water depot should be increased by routinely checking the standard water every three months and drinking water once a month. Keyword : Coliform, Fecal coliBacteriological quality, refill drinking water, Coliform, Fecal col

Arsenic in drinking water wells on the Bolivian high plain: field monitoring and effect of salinity on removal efficiency of iron-oxides-containing filters

In the rural areas around Oruro (Bolivia), untreated groundwater is used directly as drinking water. This research aimed to evaluate the general drinking water quality, with focus on arsenic (As) concentrations, based on analysis of 67 samples from about 16 communities of the Oruro district. Subsequently a filter using Iron Oxide Coated Sand (IOCS) and a filter using a Composite Iron Matrix (CIM) were tested for their arsenic removal capacity using synthetic water mimicking real groundwater. Heavy metal concentrations in the sampled drinking water barely exceeded WHO guidelines. Arsenic concentrations reached values up to 964 mu g L-1 and exceeded the current WHO provisional guideline value of 10 mu g L-1 in more than 50% of the sampled wells. The WHO guideline of 250 mg L-1 for chloride and sulphate was also exceeded in more than a third of the samples, indicating high salinity in the drinking waters. Synthetic drinking water could be treated effectively by the IOCS- and CIM-based filters reducing As to concentrations lower than 10 mu g L-1. High levels of chloride and sulphate did not influence As removal efficiency. However, phosphate concentrations in the range from 4 to 24 mg L-1 drastically decreased removal efficiency of the IOCS-based filter but had no effects on removal efficiency of the CIM-based filter. Results of this study can be used as a base for further testing and practical implementation of drinking water purification in the Oruro region

Drinking Water Quality Deterioration in Households of Students with High Illness Absenteeism

Objective: School and household lacked safe drinking water and thus school absenteeism rates were high among students with poor water quality. So we assessed fecal contamination of drinking water in households of students with high illness absenteeism and evaluate the factors for non-potability. Method: Drinking water samples (100) were collected from household water container of 50 students for fecal contamination. Results: A total of 40 (80%) family’s water was potable before use, out of which 40% became non-potable after use. Factors responsible for reduction in potability were water withdrawal without handwashing up to (56%), poor domestic hygiene (56%), dipping hands in water (55%), placing water dipper on lid (52%) and no washing of container (0%). Socio-economic condition also had impact on water potability. Conclusion: Water quality deterioration occurs by multiple factors like improper storage, unhygienic habits of water handling and circumstances. Results focused on the need for further protocols for safe and hygienic storage of water

Potential application of bitter gourd (Momordica Charantia) peel as an adsorbent for the removal of total hardness In Kangkar Senangar’s groundwater

Lately many countries in the world are suffering with the shortage of fresh and clean drinking water as it is a source of life and energy. Rapid pace of industrialization, population expansion, and unplanned urbanization have largely contributed to the severe water pollution and surrounding soils [1]. The main sources of water pollution can be attributed by discharge of untreated sanitary and toxic industrial wastes, dumping of industrial effluent and runoff from agricultural fields. It is well known that 70–80% of all diseases in developing countries are related to water contamination, particularly that susceptible to women and children [2]. This is because water sources now become limited as drinking water quality has been reduced by pollution. Hardness is one of the problem related to unpalatable drinking water that need to be control at acceptable level

Global assessment of exposure to faecal contamination through drinking water based on a systematic review

Objectives: To estimate exposure to faecal contamination through drinking water as indicated by levels of Escherichia coli (E. coli) or thermotolerant coliform (TTC) in water sources. Methods: We estimated coverage of different types of drinking water source based on household surveys and censuses using multilevel modelling. Coverage data were combined with water quality studies that assessed E. coli or TTC including those identified by a systematic review (n = 345). Predictive models for the presence and level of contamination of drinking water sources were developed using random effects logistic regression and selected covariates. We assessed sensitivity of estimated exposure to study quality, indicator bacteria and separately considered nationally randomised surveys. Results: We estimate that 1.8 billion people globally use a source of drinking water which suffers from faecal contamination, of these 1.1 billion drink water that is of at least 'moderate' risk (>10 E. coli or TTC per 100 ml). Data from nationally randomised studies suggest that 10% of improved sources may be 'high' risk, containing at least 100 E. coli or TTC per 100 ml. Drinking water is found to be more often contaminated in rural areas (41%, CI: 31%-51%) than in urban areas (12%, CI: 8-18%), and contamination is most prevalent in Africa (53%, CI: 42%-63%) and South-East Asia (35%, CI: 24%-45%). Estimates were not sensitive to the exclusion of low quality studies or restriction to studies reporting E. coli. Conclusions: Microbial contamination is widespread and affects all water source types, including piped supplies. Global burden of disease estimates may have substantially understated the disease burden associated with inadequate water services