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The Health Effects of Arsenic in Tap Water (And What You Can Do About It)

April 15, 2025 5 min read

Arsenic in tap water might not be the first thing you think about when it comes to home safety, but it’s an issue that demands attention. According to research from experts such as the Environmental Working Group (EWG), arsenic contamination is a hidden danger that can impact the health of your family over time. This blog breaks down where arsenic in tap water comes from, the potential health risks, and what you can do to protect your loved ones.

What Is Arsenic, and How Does It End Up in Tap Water?

Arsenic is a naturally occurring element found in soil, rocks, and water at varying concentrations. While small amounts may not pose a significant threat, arsenic can find its way into tap water through two primary sources:

  • Natural Sources

Arsenic often leaches into groundwater through the natural erosion of rocks and soil, particularly in regions with high geological arsenic concentrations. Communities relying on well water are especially vulnerable to elevated levels.

  • Industrial and Agricultural Activities

Human activities, such as mining, manufacturing, and the use of arsenic-based pesticides, can significantly contribute to arsenic contamination in water supplies. These industries release arsenic into the soil and waterways, where it eventually finds its way into municipal water systems.

The Health Effects of Arsenic Exposure

Exposure to arsenic through drinking water, particularly over prolonged periods, can pose both short- and long-term health risks. The severity largely depends on the concentration and duration of exposure.

Short-Term Effects

  • Acute poisoning from high levels of arsenic can lead to symptoms like nausea, vomiting, diarrhea, and abdominal pain. These instances are uncommon but can occur in cases of extreme contamination.

Long-Term Effects

Chronic exposure to even low levels of arsenic in tap water can have more serious health consequences, including:

  • Cancer Risk

Arsenic is classified as a known carcinogen and has been linked to cancers of the skin, bladder, kidney, and lungs.

  • Heart Problems

Long-term exposure is associated with cardiovascular diseases, including hypertension and an increased risk of heart attack.

  • Neurological Issues

Arsenic can affect cognitive and motor function, especially in children whose brains are still developing.

  • Diabetes

Some studies suggest that arsenic may increase the risk of developing type 2 diabetes.

  • Developmental Challenges in Children

Prolonged exposure to arsenic may negatively impact growth, intelligence, and overall development in children.

How to Test Your Tap Water for Arsenic

The first step to take when addressing any environmental hazard is understanding the scale of the potential problem. Testing your tap water for arsenic is essential to gain clarity.

  • DIY Water Testing Kits

Home arsenic testing kits are affordable and easy to use. However, they may not provide the precision and details required for peace of mind.

  • Professional Laboratory Testing

For a more accurate assessment, consider sending a water sample to a certified lab. Professional testing will provide detailed insights into the arsenic levels in your water and detect other potential contaminants. Dominick Plumbing can facilitate this testing for you!

How to Remove Arsenic from Tap Water

If your water does test positive for unsafe levels of arsenic, don’t worry. Modern filtration technologies can effectively remove arsenic and restore your water quality. Here are the most common methods:

  • Reverse Osmosis (RO) Systems

RO systems are one of the most effective solutions, filtering out up to 99% of arsenic. RO is ideal for under-sink installations and provides clean, great-tasting water for drinking and cooking.

  • Activated Alumina Filters

These filters are excellent for reducing arsenic levels in larger supply systems. While they require regular maintenance, they are highly effective for treating arsenic in both well and municipal water.

  • Whole-House Filtration Systems

If arsenic contamination remains a significant concern for all household uses, investing in a whole-house filtration system can provide clean water access for drinking, bathing, and cleaning.

Recommendations for Health-Conscious Homeowners and Parents

Taking action to address arsenic in your tap water can make a huge difference in safeguarding your family’s health. Here are some immediate steps you can take:

  1. Get Your Water Tested

Start by using a certified lab or consulting your local water utility report to determine the safety of your water supply.

  1. Choose the Right Filtration System

Based on your test results, consider investing in a reverse osmosis system or another suitable arsenic filtration method.

  1. Stay Educated

Stay informed by using credible resources like the EWG’s Tap Water Database. Knowledge is your best defense against contaminants in your environment.

  1. Consider a Professional Consultation

For personalized advice, schedule an in-home consultation with water treatment professionals to find the best solution for your household.

Protect Your Family and Spread Awareness

Arsenic contamination in tap water is a preventable hazard that’s too often overlooked. Taking proactive steps to test, filter, and improve your water quality ensures that your family has access to safe and healthy drinking water.

Take Action Today!

  • Test Your Water: Send a sample to a certified lab for detailed results.
  • Upgrade Your Filtration: Look into advanced systems to reduce arsenic levels.
  • Share: Spread the word by sharing this article with friends and family.
  • Schedule a Consultation: Book your in-home consultation with our experts today to get started.

Clean water is foundational to good health. Start today and secure a safer future for your family!

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