A method for prioritization of areas for pesticides surveillance on surface waters: a study in Minas Gerais, Brazil

2008 ◽  
Vol 57 (11) ◽  
pp. 1693-1698 ◽  
Author(s):  
C. T. Menezes ◽  
L. Heller
Keyword(s):  
Developing Countries ◽  
Quality Control ◽  
Drinking Water ◽  
Surface Water ◽  
Surface Waters ◽  
Multicriteria Analysis ◽  
Legal Issues ◽  
Environmental Surveillance ◽  
Health Authorities ◽  
The World

The occurrence of pesticides in drinking water is a matter of growing concern in several parts of the world, mainly in developing countries, due the possible adverse effects on human health. Pesticides applied in the agriculture are an important source of contamination and are rarely monitored in surface water in developing countries, either by water supply operators or health authorities, often not accomplishing the legal issues regarding the quality control of raw waters. The paper discusses a method for prioritization of surveillance actions of pesticides in surface waters, through multicriteria analysis. Five criteria were defined and a range of weight was established for each criterion. For validation of the method, it was applied in five sub-basins of Grande River Basin—MG. This application allowed ordering priority sub-basins for pesticides surveillance, suggesting two sub-basins as priorities. The validation performed enabled the evaluation and adjustment of the method, mainly regarding the availability of information. The method showed a practical alternative for the environmental surveillance, targeting priority areas. Moreover, its structure allows the application in other different areas and for other pollutants.

Forging Partnerships to Provide Computer Literacy in Swaziland

2008 ◽  
pp. 2394-2400
Author(s):  
C. M. Magagula
Keyword(s):  
Developing Countries ◽  
Drinking Water ◽  
Young Children ◽  
United Nations ◽  
Computer Literacy ◽  
Development Programme ◽  
Access To Education ◽  
The World ◽  
Nations Development ◽  
Global Population

The challenges facing the world, especially developing countries like Swaziland, are many and varied. The United Nations Development Programme (UNDP) estimates that over two billion people, out of a global population of six billion, do not have access to education. The majority of these people are found in developing countries. As many as 113 million children do not attend school. More than one billion people still live on less than US$1 a day and lack access to safe drinking water. More than two billion people in the world in developing countries in particular, lack sanitation. Every year, nearly 11 million young children die before their fifth birthday, mainly from preventable illnesses. The risk of dying in childbirth in developing countries is one in 48 (UNDP, 2003). In most developing countries, especially in remote areas, the situation is exacerbated by lack of electricity.

Health Risk Assessment of Organochlorine Pesticides in a Shallow Freshwater Lake, China

2013 ◽  
Vol 864-867 ◽  
pp. 871-875 ◽  
Author(s):  
Wei Guo ◽  
Yao Feng
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Health Risk ◽  
Organochlorine Pesticides ◽  
Risk Level ◽  
Acceptable Risk ◽  
Potential Health ◽  
Potential Health Risk ◽  
The World ◽  
Carcinogenic Effects

Organochlorine pesticides (OCPs) including Hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) in surface water of Lake Baiyangdian were determined to assess the potential health risk when using as drinking water for children and adults. The concentration of HCHs and DDTs in surface water were in the range of 2.74-11.50 ng L-1 and 3.48-16.88 ng L-1, respectively. Compared with similar results reported around the world, the level of OCPs in this study was in the mid-range. The analysis of health risk indicated that risks from OCPs in most part of the lake would not be risky to human health according to the acceptable risk level, while carcinogenic effects caused by α-HCH might occur if drinking water from Nanliuzhuang (NLZ) and Laowangdian (SCD). α-HCH and β-HCH were the dominating factors for carcinogenic and non-carcinogenic risks, respectively. Risks of OCPs for children were much higher than those caused by OCPs for adults.

scholarly journals Detection of enteric viruses in Hungarian surface waters: first steps towards environmental surveillance

2013 ◽  
Vol 11 (4) ◽  
pp. 772-782 ◽  
Author(s):  
Anita Kern ◽  
Mihaly Kadar ◽  
Katalin Szomor ◽  
György Berencsi ◽  
Beatrix Kapusinszky ◽  
...  
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Surface Waters ◽  
Membrane Filtration ◽  
Virus Detection ◽  
Water Concentration ◽  
Water Quality Monitoring ◽  
Health Concern ◽  
Human Pathogens ◽  
Bathing Waters

Waterborne viruses infect the human population through the consumption of contaminated drinking water and by direct contact with polluted surface water during recreational activity. Although water related viral outbreaks are a major public health concern, virus detection is not a part of the water quality monitoring scheme, mainly due to the absence of routine analysis methods. In the present study, we implemented various approaches for water concentration and virus detection, and tested on Hungarian surface water samples. Eighty samples were collected from 16 sites in Hungary. Samples were concentrated by glass wool and membrane filtration. Human adenoviruses were detected by conventional and quantitative real-time polymerase chain reaction (PCR) methods in 56% (45/80) of the samples; viral titers ranged from 8.60 × 101 to 3.91 × 104 genome copies per liter. Noroviruses and enteroviruses were detected in 30% (24/80) and 13% (10/80) of samples, respectively, by reverse transcription-PCR assays. Results indicate a high prevalence of viral human pathogens in surface waters, suggesting the necessity of a detailed survey focusing on the quality of natural bathing waters and drinking water sources.

scholarly journals Evaluating Fecal Indicator and Pathogen Relationships in Sewage Impacted Surface Waters to Blend with Reclaimed Water for Potable Reuse in North Carolina

Pathogens ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 1603
Author(s):  
Emily S. Bailey ◽  
Margret Hopkins ◽  
Lisa Casanova ◽  
Mark D. Sobsey
Keyword(s):  
North Carolina ◽  
Drinking Water ◽  
Surface Water ◽  
Surface Waters ◽  
Reclaimed Water ◽  
Drinking Water Treatment ◽  
Reclaimed Wastewater ◽  
Fecal Indicator ◽  
Potable Reuse ◽  
Indicator Microorganisms

Surface waters used for drinking water supply often receive upstream wastewater effluent inputs, resulting in de facto wastewater reuse for drinking water and recreation. As populations grow, demands on water supplies increase. As this trend continues, it creates the need to understand the risks associated with such reuse. In North Carolina, potable reuse has been proposed as a combination of at least 80% surface water with up to 20% tertiary-treated, dual-disinfected, reclaimed wastewater, which is then stored for 5 days and further treated using conventional drinking water treatment methods. The state of North Carolina has set standards for both intake surface water and for the reclaimed water produced by wastewater utilities, using indicator microorganisms to measure compliance. The goal of this study was to quantify fecal indicator microorganisms, specifically E. coli, coliphages, and C. perfringens as well as key pathogens, specifically Salmonella spp. bacteria, adenoviruses, noroviruses, and the protozoan parasites Cryptosporidium and Giardia, in two types of water representing potential candidates for potable reuse in North Carolina, (1) run of river surface water and (2) sewage-impacted surface waters, with the purpose of determining if there are predictive relationships between these two microorganism groups that support microbial indicator reliability.

scholarly journals On the issue of the Uzbekistan surface water quality assessment

2019 ◽  
Author(s):  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Surface Water ◽  
Surface Waters ◽  
Surface Water Quality ◽  
Water Quality Assessment ◽  
Soviet Period ◽  
Hazard Class ◽  
Difficult Situation

The article is devoted to the analysis of the quality of surface water in Uzbekistan. Analyzed their impact on the living conditions and health of the population of the republic. The most difficult situation with drinking water supply and with the growth of diseases caused by the use of poor-quality drinking water falls on the Navoi, Khorezm, Surkhandarya regions and Karakalpakstan. The stated data makes it relevant to conduct research to determine the quality of surface waters and improve the methods of its assessment. The analysis of existing methods for assessing the quality of surface waters. The technique of assessment of the index of pollution of water applied now in Uzbekistan counted in compliance with “Methodical recommendations about the formalized complex evaluation test of the surface and ocean waters about hydro/chemical indexes” was developed in Soviet period and doesn’t meet the modern requirements. The need to improve the methods for assessing the quality of surface waters as compared with that currently used in Uzhydromet is indicated. One of the most promising at present is the “Method of integrated assessment of the degree of contamination of surface waters by hydro/chemical indicators” developed and used in operational practice in Russia. The most informative comprehensive estimat water pollution and the class of water quality. The author proposed methods for assessing the quality of surface waters, the calculation of which is based on the use of a larger amount of initial information and are more reliable than those used. In particular, the proposed methodology for assessing the quality of surface waters, taking into account the hazard class of ingredients.

Forging Partnerships to Provide Computer Literacy in Swaziland

2005 ◽  
pp. 305-309
Author(s):  
Cisco M. Magagula
Keyword(s):  
Developing Countries ◽  
Drinking Water ◽  
Young Children ◽  
United Nations ◽  
Computer Literacy ◽  
Development Programme ◽  
Access To Education ◽  
The World ◽  
Nations Development ◽  
Global Population

The challenges facing the world, especially developing countries like Swaziland, are many and varied. The United Nations Development Programme (UNDP) estimates that over two billion people, out of a global population of six billion, do not have access to education. The majority of these people are found in developing countries. As many as 113 million children do not attend school. More than one billion people still live on less than US$1 a day and lack access to safe drinking water. More than two billion people in the world in developing countries in particular, lack sanitation. Every year, nearly 11 million young children die before their fifth birthday, mainly from preventable illnesses. The risk of dying in childbirth in developing countries is one in 48 (UNDP, 2003). In most developing countries, especially in remote areas, the situation is exacerbated by lack of electricity.

scholarly journals ECONOMIC CRISIS OF PAKISTAN AND ITS IMPACT ON ECONOMY OF PAKISTAN

2016 ◽  
Vol 11 (1) ◽  
pp. 2620-2623
Author(s):  
Muhammad Salih Memon ◽  
Dr.Asif Ali Shah ◽  
Faiz Muhammad Shaikh ◽  
Muhammad Munir Ahmadani
Keyword(s):  
Developing Countries ◽  
Drinking Water ◽  
Private Sector ◽  
Economic Crisis ◽  
Social Sector ◽  
Safe Drinking Water ◽  
Economic Problems ◽  
Secondary Sources ◽  
The World ◽  
Day By Day

This research investigates the Economic Crisis Of Pakistan And Its Impact On Economy Of Pakistan .  Data were collected from various secondary sources, and data were analyzed by using SPSS-21 software. It was revealed that Pakistan is one of those developing countries which are facing through the economic problems which are hindering the success and the growth of the country. There are so many economic problems in Pakistan which are getting threatening and devastating day by day and if they are remained unattended than the conditions might even get to worse. Data were collected from various secondary sources.  It was revealed Corruption is the prime reason behind the economical unstableness,  Corruption has spread into the world and has ruined the economy. It is found in government as well as private sector also. Due to corruption, illiterate and dishonest workers come forward and cause industrial backwardness. Poor Social Sector Including Health, Safe Drinking Water, Sanitation etc.

Surface Water Purification Using Blended Coagulant's –A Sustainable Approach

2020 ◽  
Vol 13 ◽  
Author(s):  
Vara Saritha ◽  
Manoj Kumar Karnena ◽  
Bhavya Kavitha Dwarapureddi
Keyword(s):  
Surface Water ◽  
Surface Waters ◽  
Water Samples ◽  
Potable Water ◽  
Chemical Parameters ◽  
Sem Images ◽  
Turbidity Removal ◽  
Physico Chemical ◽  
The World ◽  
Natural Coagulants

Background: Solutions to challenges of access to potable water have been the focus of many studies around the world which also is one of the goals of sustainable development. Objective: This study is an attempt to address this issue wherein we tested the efficiency of blended coagulants in removing pollutants from surface water. Previous studies have reported, and suggested requirement of blended coagulants that are tailor-made for treating geographically specific water samples since no single coagulants will be effective in removing all pollutants. Methods: Three coagulants, two natural and one chemical were blended for the present study in various ratios. Turbidity removal of the bi and tri-blend coagulants of water samples with initial turbidity of 70 and 150NTU was above 95% - 100%. Results: Removal of Physico-chemical parameters by blended coagulants in surface waters was up to 48% for electrical conductivity, 80% for total solids, 36% for hardness, 40% for alkalinity and 57% for chlorides. The results are supported with analysis from SEM images showing adsorbed floc on to coagulant and FTIR spectra presenting the functional groups responsible for coagulation. Conclusion: Hence, it can be concluded that the natural coagulants tested in the present study are promising solutions for challenges of water quality.

scholarly journals Review of Methods Suitable for Environmental Surveillance of Salmonella Typhi and Paratyphi

2020 ◽  
Vol 71 (Supplement_2) ◽  
pp. S79-S83
Author(s):  
Graciela Matrajt ◽  
Lorraine Lillis ◽  
J Scott Meschke
Keyword(s):  
Drinking Water ◽  
Surface Waters ◽  
Environmental Samples ◽  
Salmonella Typhi ◽  
Environmental Surveillance ◽  
Enteric Disease ◽  
Grab Sampling ◽  
Population Prevalence ◽  
Clinical Surveillance ◽  
Sampling Approach

Abstract Typhoid fever is an enteric disease caused by the pathogens Salmonella Typhi and Salmonella Paratyphi. Clinical surveillance networks are lacking in many affected areas, thus presenting a need to understand transmission and population prevalence. Environmental surveillance (ES) has been suggested as a potentially effective method in the absence of (or in supplement to) clinical surveillance. This review summarizes methods identified in the literature for sampling and detection of typhoidal Salmonella from environmental samples including drinking water, wastewater, irrigation water, and surface waters. Methods described use a trap or grab sampling approach combined with various selective culture and molecular methods. The level to which the performance of identified methods is characterized for ES in the literature is variable, thus arguing for the optimization and standardization of ES techniques.

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