scholarly journals Brief Communication: Use of field test kit for detection of lead in drinking water in Philippines post the disaster typhoon Haiyan

2015 ◽  
Vol 3 (9) ◽  
pp. 5287-5295 ◽  
Author(s):  
K. Y. Liu ◽  
L. M. Cong ◽  
Z. J. Lan ◽  
R. P. Ma ◽  
L. Yu ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Local Government ◽  
Water Supply ◽  
Field Test ◽  
Water Samples ◽  
Safe Water ◽  
Test Kit ◽  
Relief Efforts ◽  
Concentration Levels

Abstract. On 8 November 2013, super typhoon Haiyan made landfall in Philippines. On 24 November, the Chinese hospital ship arrived in Philippines to help with disaster relief efforts. Drinking water was collected at a variety of locations, and the concentration levels of lead were determined with field test kit. The results showed that the levels of lead in 67% of total collected water samples exceeded WHO's standard. Afterwards, the local government had taken many measures to ensure a safe water supply in next few months. This is the first report about water quality in Philippines after the disaster.

Assessment of drinking water quality within amalgamated territorial communities

2021 ◽  
Vol 6 (4) ◽  
pp. 201-210
Author(s):  
Ruslana Valerko ◽  
◽  
Liudmyla Herasymchuk ◽  
Yevgenii Hurskyi ◽  
Anastasiya Pavlenko ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Pure Water ◽  
Local Population ◽  
National Standards ◽  
Drinking Water Quality ◽  
Nitrate Content ◽  
Rural Settlements

One of the main problems of rural residential areas is to provide the local population with quality drinking water, which is a major factor influencing their health. To solve this problem, it is necessary to implement effective measures not only at the state level but also at the regional and local levels. The main purpose of decentralization of power is to transfer the power and appropriate financial resources to the lowest levels of local self-government, which makes it possible for created amalgamated communities to use these resources to solve the priority issues. However, to determine the ecological state of rural settlements in the subsystem of drinking water quality, it is necessary to assess its quality in the territory where the community is situated. The investigation was carried out in 15 rural settlements of the Teterivka amalgamated community of the amalgamated Zhytomyr district. 36 water samples were selected from the sources of non-centralized water supply. Water quality classes were determined following DSTU (National Standards of Ukraine) 4808:2007 “Sources of Centralized Drinking Water Supply. Hygienic and Environmental Requirements for Water Quality and Selection Rules”. As a result, it has been established that nitrates make the largest contribution to the pollution of drinking water. In 47% of the selected samples, the nitrate content on average exceeded the norm; and in 46.7% of the investigated settlements, water belongs to quality class 4, defined as “mediocre”, “partially potable” of undesirable quality. A critical situation was recorded in the villages of Mykhailivka, Nova Rudnia and Staroshiika, where the nitrate content in all selected samples of the well water exceeded the norm. On average, 61% of the selected water samples did not meet the standard and were below the standard. According to the pH indicator, the quality classes vary from “excellent”, very pure water grading to the class of “good”, pure water of the desired quality to “satisfactory”, slightly contaminated water of acceptable quality. The total iron content exceeded the standard in 5.6% of the selected samples.

scholarly journals Occurrence of Salmonella in drinking water samples of urban water supply system of Kathmandu

2010 ◽  
Vol 6 ◽  
pp. 52-55
Author(s):  
Esha Shrestha ◽  
Dwij R Bhatta ◽  
Binod Lekhak
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Supply System ◽  
Water Supply System ◽  
Drinking Water Quality ◽  
Urban Water ◽  
Urban Water Supply ◽  
Water Borne

Water-borne diseases are among the leading causes of morbidity and mortality in developing countries and around 2.2 million people die every year due to basic hygiene-related diseases, like gastroenteritis, diarrhea, typhoid and dysentery. Eighty-six water samples were randomly collected from urban water supply system of Kathmandu, and analyzed for physiochemical and microbiological parameters to assess drinking water quality. Residual chlorine was undetectable in 100% samples. Salmonella was detected in 4 samples by enrichment culture technique in Selenite F broth followed by plating on Salmonella-Shigella Agar. A total of 10 isolates were identified as Salmonella (S. Paratyphi, 10% and non-typhi, 90%) by conventional biochemical test. The majority of the isolates were susceptible to most of the antimicrobials tested; however, resistance was observed to amoxicillin (70%), cephalexin (20%) and ceftizoxime (14.28%). There was no significant relationship between coliform and Salmonella positivity (P = 0.366). The microbiological quality of urban water supply system is poor and indicates chances of outbreak of Salmonella infection. Key-words: drinking water quality; Nepal; water-borne disease; water pollution.DOI: 10.3126/botor.v6i0.2911 Botanica Orientalis - Journal of Plant Science (2009) 6: 52-55

scholarly journals Priority risk factors related to drinking water from centralized water supply system that create negative trends in population health

2020 ◽  
pp. 49-60
Author(s):  
S.V. Kleyn ◽  
◽  
S.A. Vekovshinina ◽  
◽  
Keyword(s):  
Risk Factors ◽  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Distribution Networks ◽  
Specific Weight ◽  
Drinking Water Quality ◽  
Chemical Parameters ◽  
Health Disorders

Our research object was long-term dynamics of parameters describing drinking water from centralized water supply systems and additional cases of health disorders among population in Russia directly caused by low-quality drinking water. Our research goal was to perform hygienic assessment of priority risk factors related to drinking water and potential health disorders that could be caused by them. Our research technique was hygienic analysis of drinking water parameters as per data taken from the federal statistical form No. 18 entitled «Data on sanitary situation in a RF region» over 2000–2019, the federal information fund of social and hygienic monitoring over 2012–2019, and calculation of associated health disorders as per MG 5.1.0095–14. Specific weight of centralized water supply sources that didn’t conform to sanitary-epidemiologic requirements decreased by 4.7 % over 2000–2019 and amounted to 14.9 %. Over the last 20 years there has been a descending trend in specific weight of water samples taken from centralized water supply sources that don’t conform to sanitary requirements as per sanitary-chemical parameters (by 2.7 %) and microbiological parameters (by 4.8%). Over 2000–2019, specific weight of water distribution networks not conforming to sanitary-epidemiologic requirements decreased by 10.7 % and amounted to 15.9 % in 2019. Over the last 20 years there has been an increase in quality of drinking water taken from centralized distribution networks. Specific weight of water samples from centralized distribution networks not conforming to sanitary requirements as per microbiological and sanitary-chemical parameters fell by 6.7 % and 7.9 % respectively. In 2012–2019 in the RF hygienic parameters of drinking water quality were the most violated as per contents of bromine, silicon, chlorine, iron, sodium, lithium, magnesium, manganese, chloroform, boron, strontium, sulfides, and hydrogen sulphide. Overall, in the RF in 2019 more than 1.66 million cases of digestive diseases, cardiovascular diseases, diseases of skin and subcutaneous tissue, and other health disorders were directly related to drinking water being contaminated with chemicals and microbiological agents; it was by 13.3 % lower than in 2012 regarding morbidity associated with drinking water quality. Priority risk factors were chlorine, chlorine organic compounds (COC), ammonia, iron, manganese, arsenic, nickel, copper, boron, magnesium, and other compounds.

scholarly journals A study of drinking water quality before and after its purification in Saint-Petersburg

2019 ◽  
pp. 13-15
Author(s):  
Tatiana Ivanovna Zhilochkina ◽  
Andrei Igorevich Seliverstov
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Water Distribution ◽  
Saint Petersburg ◽  
Before And After ◽  
The City ◽  
Comprehensive Study

This article is devoted to a comprehensive study of drinking water before and after its purification. Water samples taken at 5 water supply and 5 water distribution stations of the city were used in the study. The author comes to the conclusion that the use of the monitoring system allows you to respond quickly to any changes in the quality of the drinking water, and quickly make decisions that affect its purification.

scholarly journals Water quality status of groundwater and municipal water supply (tap water) from Bagmati river basin in Kathmandu valley, Nepal

2020 ◽  
Author(s):  
Pabitra Bhandari ◽  
Megha Raj Banjara ◽  
Anjana Singh ◽  
Samikshya Kandel ◽  
Deepa Shree Rawal ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
River Basin ◽  
Water Samples ◽  
Tap Water ◽  
Kathmandu Valley ◽  
Municipal Water Supply ◽  
Tube Well ◽  
Bagmati River

Abstract Poor waste management in the Kathmandu valley has deteriorated the water quality of surface and groundwater sources. The objective of this study was to assess the status of water quality (WQ) in drinking water sources of groundwater and municipal supply (tap water) from the Bagmati river basin in Kathmandu valley. A total of 52 water samples from deep tube-well, tube-well, dug-well, and tap water were collected and analyzed for physical, chemical, and microbiological parameters using standard methods. The results revealed that chloride, total hardness (TH), copper, nitrate, sulfate, and turbidity were within the recommendations of the National Drinking Water Quality Standard (NDWQS). Total coliform (TC) bacteria in 84.6% of the samples exceeded drinking water guidelines. Similarly, the isolates of different enteric bacteria, namely Escherichia coli (21.5%), Citrobacter spp. (20.9%), Klebsiella spp. (19.8%), Proteus spp. (13.9%), Enterobacter spp. (8.72%), Salmonella spp. (5.8%), Shigella spp. (5.2%), and Pseudomonas (4.1%) were identified in the samples collected from the respective sources. Out of the 52 water samples, 7.7% of samples had fecal contamination of somatic coliphage. The groundwater and municipal water supply in the study area are not safe for drinking purposes. Treatment of water is required before its use for household applications.

scholarly journals Estimation of Optimum Alum Doses of Mountain Water for Water Supply Treatment in Hill Tribe Villages in Chiang Rai Province, Thailand

2021 ◽  
Author(s):  
Suntorn Sudsandee ◽  
Natthathida Patthanacheroen
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Cold Season ◽  
Water Sources ◽  
Remote Areas ◽  
Drinking Water Sources ◽  
Hill Tribe ◽  
Primary Water

Abstract Hill tribe villages are located in mountainous and remote areas. Primary water supply and drinking water sources are mountain water from a small weir on the mountain. Most mountain waters found turbidity higher than 1 NTU, and water quality was unclean to use and drink. This research applied different concentrations of alum doses to observe turbidity reduction. Optimum alum does apply to reduce turbidity for mountain water samples from Hmong, Karen, Lahu, and Lisu for three seasons. The optimum alum dose is between 20 - 40 mg/l in rainy seasons and 10 – 40 mg/l in summer. The cold season was low optimum alum dose at 10 mg/l for all hill tribe villages. Therefore, alum coagulants can be used to treat the mountain water supply and drinking that can implement the main problem of mountain water in hill tribe village.

Surveillance of Drinking Water Quality for Safe Water Supply—A Case Study from Shillong, India

2011 ◽  
Vol 25 (13) ◽  
pp. 3321-3342 ◽  
Author(s):  
Gajanan Kisan Khadse ◽  
Moromi D. Kalita ◽  
S. N. Pimpalkar ◽  
Pawan K. Labhasetwar
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Drinking Water Quality ◽  
Safe Water

ECOLOGO-HYGIENIC AUDIT OF DRINKING WATER QUALITY FROM WELLS AND DAMMING OF RIVNE REGION

2018 ◽  
Vol 7 (1) ◽  
pp. 55-66
Author(s):  
Ihor Hushchuk ◽  
Anna Hilman ◽  
Nataliia Kulesha
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Drinking Water Quality ◽  
Drinking Water Samples ◽  
Microbiological Indicators

The article presents the results of ecological sanitary audit of drinking water quality from sources of decentralized water supply in Rivne region during 2004-2015, analyzes the dynamics of discrepancies of drinking water samples from sources of decentralized water supply according to sanitary-chemical and microbiological indicators in the context of Rivne region’s districts.

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