Drinking water is defined as water that does not pose health concerns to users. A huge percentage of people drink contaminated water resulting in many illnesses some of which are rapidly fatal. These diseases can be rapidly spread especially among communities that live close together. Eradicating related diseases is one of the major public health goals in the developing world. Drinking water testing is one of the many ways towards attaining this aim.
It is important to ensure that tests are done regularly on various samples before the water is declared fit for use. When carrying out tests, various impurities, both visible and invisible, are likely to be found in the samples. Commonly encountered impurities include lead, manganese, iron, sulphate and radon. Microorganisms are the contaminants that are most likely to cause disease. Unfortunately, they are usually invisible to the naked eye and are often overlooked. Testing for the organisms should be done at least once a year.
There are situations that may require testing to be done more frequently within a year. If there are changes in colour, smell, taste and clarity one should suspect high levels of contaminants such as iron, sulphate and manganese. At the same time, whenever unexplained illnesses are noted among people who drink from the same source. Home testing should be done if a member of the household is pregnant.
Specific conditions call for specific tests to be carried out. For example, there should be tests for the presence of coliform bacteria when users develop recurrent gastrointestinal illness. Failure of soaps to lather easily during washing may require a test for hardness. Rapid wear of pipping equipment is a sign that samples need to be tested for PH, alkalinity, corrosion and hardness.
Babies are highly susceptible to nitrate poisoning. Exposure to high concentrations of nitrates may result in blue baby syndrome (methemoglobinemia) where oxygen levels in the body are insufficient to meet the body demands. Immediate medical attention is crucial for the survival of affected babies.
Either a simple flush in the morning or after the tap has run for a while can be used as a sample. Sampling from different points may be needed in case contamination is suspected to be in the plumbing system. This can be before and after water enters a storage container or at the inlet and outlet of a filter. Testing for corrosion in the plumbing system warrants collection of the sample after twelve hours of settling.
Once the samples have been adequately tested and the contaminants identified, one of the steps that can be undertaken is the installation of filter systems to remove impurities. The main downside is that important components such as fluoride may be filtered out. Fluoride is an element that helps strengthen tooth enamel and prevents decay.
Drinking water testing should become a routine if some of the most fatal diseases affecting the world today are to be prevented. Apart from testing, there is a need to have proper storage mechanisms to prevent contamination. If the water is being stored for a long time, regular sampling for tests should be done.
It is important to ensure that tests are done regularly on various samples before the water is declared fit for use. When carrying out tests, various impurities, both visible and invisible, are likely to be found in the samples. Commonly encountered impurities include lead, manganese, iron, sulphate and radon. Microorganisms are the contaminants that are most likely to cause disease. Unfortunately, they are usually invisible to the naked eye and are often overlooked. Testing for the organisms should be done at least once a year.
There are situations that may require testing to be done more frequently within a year. If there are changes in colour, smell, taste and clarity one should suspect high levels of contaminants such as iron, sulphate and manganese. At the same time, whenever unexplained illnesses are noted among people who drink from the same source. Home testing should be done if a member of the household is pregnant.
Specific conditions call for specific tests to be carried out. For example, there should be tests for the presence of coliform bacteria when users develop recurrent gastrointestinal illness. Failure of soaps to lather easily during washing may require a test for hardness. Rapid wear of pipping equipment is a sign that samples need to be tested for PH, alkalinity, corrosion and hardness.
Babies are highly susceptible to nitrate poisoning. Exposure to high concentrations of nitrates may result in blue baby syndrome (methemoglobinemia) where oxygen levels in the body are insufficient to meet the body demands. Immediate medical attention is crucial for the survival of affected babies.
Either a simple flush in the morning or after the tap has run for a while can be used as a sample. Sampling from different points may be needed in case contamination is suspected to be in the plumbing system. This can be before and after water enters a storage container or at the inlet and outlet of a filter. Testing for corrosion in the plumbing system warrants collection of the sample after twelve hours of settling.
Once the samples have been adequately tested and the contaminants identified, one of the steps that can be undertaken is the installation of filter systems to remove impurities. The main downside is that important components such as fluoride may be filtered out. Fluoride is an element that helps strengthen tooth enamel and prevents decay.
Drinking water testing should become a routine if some of the most fatal diseases affecting the world today are to be prevented. Apart from testing, there is a need to have proper storage mechanisms to prevent contamination. If the water is being stored for a long time, regular sampling for tests should be done.
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