Interesting Facts About Drinking Water
The quality of drinking water plays a crucial role in our health. Spring water may appear natural and pure, but it is not always safe without prior testing. Brown water from the tap often indicates rust or sediments and should be examined to avoid health risks. Chlorine in drinking water is used for disinfection and is harmless in small quantities, but it can affect taste and smell. Diarrhea from contaminated water is a serious problem, often caused by bacteria or parasites, which is why regular testing and filtration are necessary.
Heavy rainfall and flooding can wash contaminants into drinking water, making protective measures and regular checks essential. E. coli in drinking water indicates fecal contamination and requires immediate actions, such as boiling the water. Despite the Covid-19 pandemic, there is no evidence that the virus is transmitted through drinking water, although hygiene measures remain important. Lead contamination, often from old pipes, is particularly harmful to health and should be avoided through pipe replacement and water testing. Contaminants such as pesticides and heavy metals can also occur in drinking water, so filters and testing are essential.
Legionella, bacteria that thrive in warm water, can cause severe pneumonia, which is why regular maintenance and disinfection of water systems are required. This knowledge helps improve understanding and measures to ensure safe drinking water.
+ Tap water in Switzerland: Quality and challenges
Tap water is one of the best-controlled foods in Switzerland. Nevertheless, pollutants such as chlorothalonil or heavy metals from pipes repeatedly come to the attention of the public. Water quality depends largely on the raw water source, which is why groundwater protection is prioritised in many regions. The legal limits for substances such as lead, cadmium and nitrate are strictly regulated and are monitored by over 2,500 water suppliers. Tap water also contains vital minerals such as calcium, magnesium and potassium, which contribute to good health. Despite modern methods of analysis, trace substances such as pesticides or microplastics can be detected, although their concentrations are usually harmless. Regular tests and checks ensure that the water meets the high standards. If you are unsure, you can check the individual quality of your tap water by having it analysed.
+ Can I drink spring water?
Spring water comes from natural sources and is not artificially produced. It is often very pure and contains no chemical additives, making it suitable for drinking water use. However, the purity of spring water can vary, especially if the source is poorly maintained or if contaminants accumulate in the soil. Therefore, it is always advisable to check whether the spring water is safe to drink. This can be done through water analyses or by obtaining information from relevant authorities. Spring water is rich in minerals and nutrients and offers many health benefits. A private well can also be beneficial if it is well planned and executed. In any case, regular quality checks are important to avoid health risks.
+ Brown Water from the Tap: What to Do?
Brown water from the tap is usually due to non-toxic deposits of iron or manganese in the pipes. The corrosion of these metals turns the water orange to brown. In old lead pipes, the water can even turn black. You should not drink brown water before the cause is clarified. Short-term consumption of water containing iron or manganese is harmless but should be avoided in the long term. Lead in water can lead to poisoning. Upon arrival at the property, you should thoroughly flush the pipes and have the water tested. Professional water analyses are important to exclude health risks.
+ Stagnant Water in Second Homes
Stagnant water in pipes occurs when they are not used for an extended period. Water quality can deteriorate after just a few hours, and after a week, the water should not be drunk directly. Holiday and second homes are particularly affected due to their irregular use. Bacteria and biofilms can form in standing water pipes, posing health risks such as Legionella. Old pipes can also release heavy metals like lead, which accumulate in the water. Upon arrival, you should thoroughly flush the pipes and heat the boiler to over 65°C. Regular water analyses are recommended to check water quality. A suitable water filter can additionally remove most germs and heavy metals.
+ Watering Plants Correctly
How often you water a plant depends on the type of plant. Some plants require little water, while others need regular and thorough care. Before watering, the water quality should be checked for hardness, pH value, salt content, and conductivity. This is important because garden and potted plants have different requirements for water. Tap water can be very high in lime in some regions, which can be harmful, especially for indoor plants. Rainwater is often more suitable as it has no carbonate hardness and is free of lime. Plants can thrive well with rainwater but may require additional nutrients through fertilizers. A filter can help improve water quality for sensitive plants.
+ Diarrhea from Drinking Water
Diarrhea from drinking water can cause years of stomach pain and migraines. Even in controlled tap water, unwanted pathogens or heavy metals can lurk. Bacteria such as E. coli and enterococci are often responsible for sudden headaches, stomach pains, and vomiting. Especially after heavy rainfall, animal and human fecal germs can enter water pipes. A water test for bacteria can save lives, particularly for people with weakened immune systems, young children, and the elderly. Adhering to legal limits for chlorine and heavy metals is essential. Home and well owners must regularly check the water quality. Drinking water test kits provide a reliable way to detect pollutants and protect health.
+ Chlorine in Drinking Water: Benefits and Safety
Chlorine is a chemical element from the halogen group and is used in industry as well as for disinfection. In tap water, it is used to combat bacterial contamination and is added in very small amounts. These amounts are harmless to health and are regulated by law. Despite the typical chlorine smell in swimming pools and occasionally in tap water, the added amounts are safe. After water pipe breaks or repairs, chlorine levels may temporarily increase. Experts agree that chlorine in these small amounts provides more protection than harm. However, bottled water is sometimes recommended for pregnant women and small children.
+ Effects of Heavy Rainfall and Flooding on Drinking Water Quality
Heavy rainfall and flooding can significantly affect the quality of drinking water. Flooding can cause sewage systems to overflow and release pollutants. Bacteria and nitrates from agricultural fields can enter water bodies and groundwater, causing problems weeks or months later. Pesticides and herbicides are also transported in increased amounts during such events. A delay of up to two months between heavy rainfall and the appearance of pathogens in groundwater is possible. Studies show that extreme weather events often lead to outbreaks of waterborne diseases. Gastrointestinal diseases and Legionella are typical consequences. Professional water analyses are necessary to ensure the safety of the drinking water supply.
+ Coliform Bacteria in Drinking Water
Coliform bacteria are a widespread problem in contaminated drinking water that occurs worldwide. These bacteria, which normally reside in the human intestine, can cause severe health issues when contamination occurs. Particularly dangerous is the EHEC pathogen, which enters standing water through animal manure. Symptoms of an infection include blood in the stool and prolonged diarrhea with fever. To kill coliform bacteria, water can be simply boiled or treated with water purification tablets. Activated carbon filters alone are often not sufficient; microfilters are more effective. Regular testing of tap water by tenants and homeowners is essential to ensure safety and detect contamination early.
+ Drinking Water and Covid-19
The Covid-19 pandemic has massively influenced our lives and society. Despite extensive research, no coronaviruses have been found in drinking water so far. According to the EPA and WHO, the probability of transmission through drinking water is very low. Coronaviruses have been detected in a river in northern Italy, but without confirmed infections. However, Legionella bacteria have increased during the pandemic as many water pipes were not used during lockdown periods. Therefore, the BLV recommends thoroughly flushing pipes. A water analysis can help ensure the safety of drinking water.
+ Lead Contamination in Drinking Water
Although the use of lead pipes has been banned in Switzerland for over 100 years, lead contamination in drinking water can still occur in older houses. Lead-containing water should not be consumed or used for daily purposes, as it can be harmful to health.
+ Contaminants in Drinking Water
Although drinking water should actually be clean, contaminants are repeatedly found in it. These include metals from old pipes, germs such as Legionella, nitrates, pesticides, and medication residues. The main causes are outdated and corroded water pipes as well as over-fertilization, which introduce contaminants into the groundwater. Microplastics also enter the water through the use of cosmetics and personal care products. In Switzerland, drinking water is carefully treated using UV disinfection, quartz sand, activated carbon, and chlorine dioxide to minimize contaminants. Consumers can also check their water quality through a water analysis and invest in a filtration system if necessary. This ensures that drinking water remains healthy and safe.
+ Dangerous Legionella in Water
Legionella pneumophila from the Legionellaceae family is a particularly dangerous form of Legionella that lives in water and can be pathogenic to humans. The danger lies not in drinking the water but in inhaling aerosols created by misted water in places such as showers or whirlpools. The bacteria proliferate significantly at temperatures between 25 and 45 degrees Celsius. Legionella prefer a neutral to slightly acidic environment to thrive optimally.
+ Mineral or Tap Water?
More and more people, including in Switzerland, are asking themselves: Mineral or tap water? Swiss residents drink about 900 million liters of mineral water annually. However, recent tests show that mineral water is not necessarily healthier or richer in minerals than tap water.
Tap water in Switzerland is the most controlled food product. Water suppliers like EWL (Energie Wasser Luzern) and EWB (Energie Wasser Bern) regularly publish their water analyses, which are accessible to everyone. Swiss tap water contains important minerals such as calcium, magnesium, and potassium, which contribute to daily mineral intake.
Despite the high quality of Swiss tap water, old or contaminated household pipes can lead to heavy metal contamination. Regular testing and maintenance are therefore recommended to ensure the safety of drinking water.
Economically and ecologically, tap water offers clear advantages. It is significantly cheaper and has a much lower ecological footprint than bottled mineral water. Additionally, using a water carbonator, you can conveniently produce sparkling water at home.
+ Water Softeners - Pros and Cons
Water softeners are used in washing machines, dishwashers, and coffee machines to extend their lifespan and prevent lime scale buildup. These devices are environmentally friendly and easy to use. The necessity of a water softener in Switzerland varies by region, depending on the hardness of the water. Water hardness is caused by dissolved minerals such as calcium and magnesium and is measured in °dH (degrees of German hardness). Water softeners exchange these hardness ions for sodium ions, making the water softer and preventing lime scale formation. Soft water protects devices from damage and reduces energy consumption, as lime scale hinders heat transfer. Regular maintenance of softening systems is important to prevent bacterial contamination.
+ Boil Water or Choose Mineral Water?
In the discussion about the safety of drinking water, the choice between boiling tap water and consuming mineral water takes center stage. While tap water in Switzerland is of high quality, certain factors like old pipes or medication residues can compromise water quality. Boiling water can kill bacteria, but metals and other impurities remain. For families with babies who frequently boil tap water due to high standards, it's important to consider that this doesn't provide complete safety. Alternatively, mineral water often offers a clean option, though this raises ecological concerns regarding transportation and packaging. Therefore, a water analysis is crucial to identify potential issues and ensure long-term safe drinking water.
+ Heavy Metals in Drinking Water
Metals such as lead, nickel, and copper are commonly found in drinking water. While small amounts have no health effects, exceeding the limits can be dangerous, especially in older buildings with outdated pipes. Lead, in particular, can cause serious health problems, especially in children and infants. Symptoms of heavy metal poisoning include nausea, vomiting, and heart rhythm disturbances. To protect yourself, you should regularly test the water and, if necessary, replace old pipes or use water filters. A thorough water analysis provides additional safety and insight into water quality. Rapid action is essential, especially if contamination is suspected.
+ Save Water - Why and How?
Did you know that hot water consumes a lot of energy? Showering, bathing, and washing heat up the water and drive up your costs. Therefore, using less water not only saves you money but also benefits the environment! Efficient water management can also contribute significantly to reducing emissions.
+ Home water treatment
Home water treatment is crucial for health, as tap water is often contaminated. Methods like ion exchange, chemical additives, and membrane filtration are used to remove contaminants. However, some methods, like reverse osmosis, generate large amounts of wastewater. Filter systems, especially activated carbon filters, can also help remove heavy metals and microorganisms. The choice of method depends on the specific contaminants in the water. Regular maintenance is essential to ensure effectiveness.
+ Water at the Dentist - Is It Safe?
A lot of water is used during dental treatments, but how hygienic is it really? In fact, the water in dental offices is often cleaner than the water from your home tap because it is regularly cleaned and treated. However, there is a slight risk for sensitive individuals that pathogens could be transmitted. The use of hygiene measures, such as wearing a face mask, can minimize this risk. Dentists also use special filtration systems and UV lamps to keep the water germ-free. Rest assured that dental water is generally safe and hygienic.
Read the full article here
+ Possible Causes of a Cloudy Pool:
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Possible Causes of a Cloudy Pool:
A cloudy pool can have various causes. Often, the issue lies with the filtration system not effectively cleaning the water. Environmental factors like weather, construction work, and trees can also affect water quality. High levels of pool chemicals like chlorine or pH imbalances can also lead to cloudiness. To clarify the water, tests can be conducted and various products like pool clarifiers or flocculants can be used. Alternatively, targeted chlorination can help clear the water again.
+ From Groundwater to Tap: The Swiss Water Journey
An insight into the journey of water from its natural source to the taps of households in Switzerland, including the water cycle and measures to ensure high water quality.
+ Faucet During Absence: Water Contamination and Legionella Risks
When faucets are not used for extended periods, germs and contaminants can form in the water. Legionella, in particular, can multiply in stagnant water and cause health issues through inhalation. Therefore, the main water valve should be turned off before a prolonged absence to prevent germ formation. Upon returning, it is recommended to let the water run for a while to flush out stagnant water from the pipes. A water analysis can provide additional safety by checking the quality of the tap water. Regular inspections are especially useful when using tap water for food preparation or in households with children. This way, potential contaminants can be detected early, and appropriate measures can be taken.
+ Nitrate and Nitrite in Drinking Water: Risks and Solutions
Nitrate and Nitrite in Drinking Water: Risks and Solutions
In Switzerland, even high-quality drinking water can contain nitrate and nitrite, which are potentially harmful to health. These contaminants mainly originate from agriculture and the use of manure, which seep into the soil and groundwater. High levels of nitrate and nitrite are particularly dangerous for infants, as they can cause oxygen deficiency in tissues. Although the majority of daily intake of these substances comes from food, their presence in drinking water should not be underestimated. Local water suppliers and health authorities regularly monitor contamination levels and take countermeasures when necessary. However, a long-term solution is needed. Water analyses can help identify contaminants and take appropriate actions. Laboratory tests are available for consumers concerned about the quality of drinking water in their homes.
+ Dangers in Tap Water: Bacteria
The safety of tap water is often confirmed by authorities, but it is only tested up to the house connection. There is a risk of contaminants that can cause health problems. Bacteria such as E. coli, Giardia, and Cryptosporidium can enter drinking water through wastewater and cause diseases. Regular analysis of drinking water is therefore essential to detect and eliminate potential dangers early. Protect yourself and your family from the risks in tap water by thoroughly examining the water quality.
+ Pesticides in Drinking Water - Are Private Analyses Worthwhile in Switzerland?
In Switzerland, there are recurring debates about pesticides in drinking water, as demonstrated by the 2020 referendums. Although these were rejected, the burden of substances like glyphosate and chlorothalonil remains an issue. Particularly alarming are reports of exceeding legal limits, such as in Kappelen, Bern. Pesticides enter groundwater through agricultural land and are often taste- and odor-neutral, making them difficult to detect. Limits and measures from the Federal Food Safety Office are deemed inadequate and are adjusted only slowly. Private water analyses offer a way to assess the quality of one’s drinking water. Studies indicate that synthetic pesticides are potentially harmful to health, especially with long-term exposure. Mechanical alternatives for weed control are used less frequently due to larger agricultural areas. Additionally, government subsidies continue to support the use of synthetic pesticides. Private analyses and independent studies are therefore important tools to ensure drinking water safety.
+ Legionella - A Current Topic
Legionella are bacteria that occur naturally but can become a health hazard under certain conditions, especially in drinking water. They are particularly dangerous when present at concentrations exceeding 100 colony-forming units (CFU) per 100 milliliters of water, which requires immediate action. Legionella can multiply in warm water, so regular use of hot water (over 60°C) is recommended to reduce their numbers. Elderly people or individuals with weakened immune systems should be particularly cautious. Landlords are obligated to inform tenants when elevated levels are detected and, if necessary, implement measures such as shower bans.
+ TFA and PFAS in Drinking Water – An Invisible Threat
The contamination of Swiss drinking water with TFA and PFAS is increasing. These persistent chemicals originate from pesticides and accumulate in the environment. Experts warn of potential health risks, while clear political actions are still lacking. A PFAS water test can help identify individual exposure.
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