When people turn on the tap at home, they usually think the water is safe to drink. Sometimes, small amounts of heavy metals such as lead, arsenic, mercury, and cadmium can enter the water.
The thing is, you cannot see these metals, and you cannot taste them either. So yes, they can cause health problems over time. Even without you knowing.
These heavy metals can get into the water in a few ways. For example, old pipes and fixtures in the house can release amounts of metals into the water.
In some places, the problem starts underground, where natural minerals and pollution can mix with the groundwater. Industrial waste and mining can also affect the water that people drink.
Children are more likely to be affected by these metals than adults. This is because their bodies are still growing and their brains are still developing.
Even small amounts of lead can affect how a child's brain grows and develops. This can cause problems that may not show up but can last for a long time.
This can be very worrying for parents and caregivers. But there is some good news. There are steps families can take to make their water safer.
IN THIS ARTICLE, we will talk about why children absorb metals more easily than adults. We will also discuss how these metals can affect the brain and nervous system. Then, we will look at ways to test the water at home and find practical ways to filter out the heavy metals. Heavy metals, such as lead, arsenic, mercury, and cadmium, can be reduced at home using the steps.
Understanding Heavy Metals in Drinking Water
The Earth's crust contains metals. These heavy metals are found naturally. Some heavy metals are really useful when we build things or make products.
We also find amounts of these metals in the dirt and rocks. So, what’s the catch then? The problem is when these metals enter the water we drink.
Heavy metals can be very bad for us. That is why some people call them metals. Even if we have a little bit of these metals in our bodies, they can still make us sick over time. If we have too much of these metals in our bodies, it can cause some very serious health problems.
There are some metals that we find in water a lot. These include:
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Lead
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Arsenic
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Mercury
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Cadmium
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Chromium
Lead in drinking water is a serious concern for health experts and the Environmental Protection Agency. This is because lead can hurt our system. It is especially bad for children.
If someone is around lead for a time, it can cause lead poisoning. It can also cause problems with learning and other health issues. Heavy metals like lead are a deal. Lead is a metal that we should be careful about. That’s for sure.
Heavy metals can get into the water we drink from many sources. For many people, the problem starts with the pipes in their homes.
In houses, there may still be pipes or lines made of lead. Or, honestly, the parts that connect the pipes may contain lead, too.
Over time, water and pipes can react, causing lead to slowly break down. When this happens, tiny bits of lead can get into the water that comes out of the tap.
This is called corrosion. It can happen in the pipes, the fittings, the fixtures, and other parts of the plumbing system.
The water can also get contaminated from things outside the home. Waste from factories, mine water, and pollution can enter rivers and lakes. And yes, there are the ones our community water systems use.
In some areas, groundwater contains minerals that can contribute to lead in our drinking water, or other heavy metals can enter.
Even if the people in charge of our water systems follow the rules to keep our water safe, honestly, there’s no saying. There can still be problems in homes because the plumbing is old.
Why Children Absorb Heavy Metals More Easily
When people talk about why kids are more vulnerable to lead and heavy metals in water, it honestly mostly comes down to how their bodies work.
Kids are still. Their organs are still forming. And so, when lead exposure occurs, their bodies handle it differently from adults'.
Here are some of the reasons.
1. Kids absorb more lead than adults
A kid's body takes in more lead once it enters their digestive system. Health experts have seen this for years.
When kids drink tap water with lead, their bodies absorb more of it. Some estimates say kids can absorb lead 4 to 5 times more than adults, given the same amount of exposure.
So, even small lead levels in drinking water can build up fast in a kid's body. This is one reason childhood lead poisoning is still a problem.
2. Their bodies are built to absorb nutrients quickly
Kids grow fast. Their bodies are always building bone, muscle, and brain tissue. This means their digestive systems are very good at absorbing nutrients.v
The problem is that their bodies can't always distinguish between nutrients and toxic metals like lead. If lead particles are in the water, their bodies may absorb them along with everything else. Once lead enters their bloodstream, it can begin to affect their organs and nervous system.
3. Smaller bodies mean the exposure is stronger
Kids are smaller. The same amount of lead affects them more. If a kid drinks tap water with lead in it, that lead spreads through their body.
This means the concentration can rise faster compared to adults. Over time, this can raise the risk of lead poisoning and other health effects, including problems with learning and behavior.
4. Nutrition can affect how much lead the body absorbs
Nutrition also plays a role. When kids don't get iron or calcium, their bodies may absorb more lead instead. This is why health experts often look at nutrition when studying lead exposure.
Kids in already vulnerable communities may face higher risks. That is, since both nutrition and water quality are serious concerns.
5. Everyday habits can increase exposure
Kids also behave in ways that increase contact with contaminants. Younger kids often put their hands in their mouths.
Drink more water compared to their body weight. Another common source is baby formula made with tap water. If the home has plumbing, like lead pipes or lead solder, lead particles can enter the water.
And most of the time, they do so during a chemical reaction caused by corrosion. All these factors together explain why lead exposure hits kids harder.
Because their bodies are still developing, their nervous systems and brains are often the most sensitive parts affected by these toxic metals.
Brain and Nervous System Damage
Lead is a problem because it can harm the growth of nerve cells and their communication with each other. These nerve cells help our brain work and control what we do.
When we drink water that contains lead, the lead can enter our bloodstream. Go to our brain. Over time, this can affect how our brains work and how we learn.
That is why people who drink water with lead in it often have problems with learning and behaving.
Some kids with high levels of lead in their bodies might have trouble learning. Though yes, we might not see these problems right away.
Here are things that may happen to these kids:
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IQ scores
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Trouble learning in school
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They might not be able to pay attention for a time
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They might have memory problems
These problems can show up slowly, so it can be hard to figure out if the lead is the cause without doing some tests.
Lead can also affect how we behave and control our feelings. The parts of our brain that help us focus and avoid impulsivity can be damaged by lead exposure.
Some kids might:
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Act impulsively
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Have trouble paying attention
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Be more likely to have problems with paying attention
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Have trouble controlling their feelings when they are with people
Because these problems can look like other learning or behavior problems, families might not realize that lead in the water is part of the problem.
Our nervous system helps our body move and work properly. Lead can interfere with how our brain cells communicate.
Over time, this can affect how our brains work and develop when we are kids. This can lead to problems with our nervous system that can last our whole life.
Lead can harm parts of our bodies, not just our brains.
Some other problems include:
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Kidney problems
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Blood problems
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Growth problems
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Problems with our system
Some kids with a lot of lead in their bodies might also feel sick to their stomach or have muscle or joint pain. In bad cases, lead can be very dangerous to our health.
If a pregnant woman has lead in her body, it can also hurt her baby. Make it more likely that the baby will be born too early.
The problems that lead to causes can last for a long time. Kids with high levels of lead in their bodies might have trouble in school. When they grow up.
Some long-term problems include:
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Not doing well in school
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Being more likely to have health problems
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Having brain problems that last our whole life
Because these problems can show up slowly, families might not realize that lead is the cause. That is why it is very important to be aware of the problem and try to prevent it.
We need to test our water and make sure our kids are not being hurt by lead. This is an important step in keeping them healthy.
How to Test for Heavy Metals in Water
Many families are surprised to learn that lead contamination can come from plumbing inside their home. Yes, you heard that right.
When community water systems follow national safety rules, old household plumbing may still introduce lead particles into tap water. And so, testing is one way to understand the water quality in your home.
Testing may be an idea in several situations.
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Homes built before the 1980s may contain older plumbing materials such as lead pipes, lead solder, or aging service lines. These materials can slowly release lead through corrosion.
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Families using a well should also consider testing. Groundwater can sometimes contain heavy metals from the earth's crust.
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Testing may also be helpful in areas with aging infrastructure. When a local water utility reports concerns about lead levels in the water system.
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Households with infants, young children, or pregnant women often choose to test their water for added safety.
There are ways to have water tested for heavy metals.
1. Laboratory water testing
Certified environmental laboratories can analyze water samples for a range of contaminants. This is the accurate way to detect lead and other toxic metals in drinking water.
These tests can measure lead levels and help identify potential sources of contamination in drinking water.
2. At-home test kits
Home test kits are widely available and easy to use. They can provide a screening for possible lead contamination. While they may not be as detailed as lab testing, they can help families decide whether further testing is needed.
Blood Lead Testing in Children
Doctors may also recommend having a child's blood tested for lead. Pediatricians often suggest screening for children under six in certain areas.
Especially where older housing or aging plumbing is common. In some instances, local health departments sometimes offer testing programs or guidance on screening options.
Signs That Testing May Be Needed
Some warning signs may prompt families to test their water or speak with a health professional. These may include:
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Behavioral changes in children
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Learning difficulties at school
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Developmental delays
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Living in homes with possible lead pipes or aging water pipes
In some cases, the taste of lead in water is not noticeable at all. This is why many experts recommend testing rather than relying on taste or smell.
If testing reveals lead water, then let's work on it. Yes, there are several ways to improve safety. Once contamination is suspected, filtration systems and proper water treatment can help.
Specifically, in reducing exposure and removing lead from household drinking water.
Water Filtration and Prevention Strategies
Carbon filters
Pretty much, carbon filters are common, and you can find them in many homes. They work by trapping stuff as the water flows through the filter.
Many of these systems are designed to remove lead, improve taste, and eliminate other toxins from tap water. You usually see these installed at the kitchen sink, so they can filter the water right where you need it.
Reverse Osmosis Systems
Another way to clean water is with osmosis. This method pushes water through a fine membrane that blocks many contaminants, such as lead and other toxic metals.
Many families use this system to make their drinking water safe for cooking and making beverages. Doctors and experts often recommend these systems in areas where the water might contain lead or pose other health risks.
Whole House vs Drinking Water Filters
There are two ways to set up a filtration system.
Whole house systems
A whole-house filter cleans the water as it comes into your home. Every sink, shower, and appliance gets clean water.
This can be really good because it reduces the amount of stuff that gets on your skin when you bathe or wash. It can be pretty expensive to install.
Point of use filters
A point-of-use filter cleans water at a single point, usually the kitchen sink. This focuses on the water you drink and use for cooking, which accounts for most lead exposure.
That is why many families start with this option. It is a place to begin.
Gravity Filtration Systems
Some people like filters that do not need to be connected to the plumbing. Gravity filtration systems are an example of this.
These systems use gravity to move the water through the filter. And get this: it actually removes heavy metals and other harmful stuff.
Many families like these systems because they are portable. And honestly, they do not need to be connected to the water pipes. That’s a big plus.
Some people also like them because they can use them with plumbing or with water from a private well. Gravity systems, like Berkey-style filters, are often used because they can make drinking water cleaner without changing the plumbing.
Extra Note:
Using a filter is a start, but there are also small things you can do every day to reduce lead exposure. Let the tap water run for a bit before you drink it.
This alone can help remove the water that has been sitting in the pipes overnight. Also, use only water when cooking or making baby formula. Why so? Well, because hot water can sometimes release more lead from the pipes.
You should also check with your water utility to see how they are doing with keeping the water clean. Many water systems will provide you with a report each year on lead levels and other contaminants in the water.
If you are worried about the water, you can also contact your water authority or health department. They can help you get your water tested. Do not be afraid to do so.
Again, using a filter and taking these steps can help keep the water clean. But it is not a magic solution, especially if the pipes are old. Sometimes, they're just simply due.
It is really important to be aware of what's going on with the water. And so, once you understand where the bad "element" is coming from, it is easier to take steps to protect your health. And of course, your entire family.
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