Austin Asthma: Is Tap Water Crashing Airways?
By Franklin Everett ShawThe air in Austin feels different these days. It’s not just the heat radiating off the concrete, but a subtle tightness in the chest, a tickle in the throat that won’t quite go away. Could it be more than just allergies? Could Austin’s tap water be playing a role in the rising asthma rates some residents are experiencing? It’s a question worth asking, and more importantly, investigating.
Austin’s water source is primarily surface water from the Colorado River, stored in lakes Travis and Buchanan. While the city diligently treats this water, the process isn’t perfect, and certain contaminants can slip through, potentially exacerbating respiratory issues.
Let’s dive into the potential culprits lurking in Austin’s tap water and how they might be affecting your lungs.
Chlorine and Chloramines: These disinfectants are essential for killing harmful bacteria, but they can also irritate the respiratory system. When chlorine reacts with organic matter in the water, it forms disinfection byproducts (DBPs) like trihalomethanes (THMs) and haloacetic acids (HAAs). These DBPs are linked to increased asthma symptoms, especially in children.
Hardness Minerals: Austin’s water is moderately hard, meaning it contains dissolved minerals like calcium and magnesium. While not directly linked to asthma, hard water can react with soaps and detergents, creating residues that can irritate sensitive skin and potentially trigger allergic reactions, indirectly impacting respiratory health.
Lead and Copper: Although Austin Water Utilities works to minimize lead and copper levels, older homes with lead pipes or copper pipes with lead solder can leach these metals into the water. Lead exposure, even at low levels, can negatively impact the immune system, making individuals more susceptible to respiratory infections. Copper, while essential in small amounts, can cause gastrointestinal distress and, in rare cases, respiratory problems at high concentrations.
Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS): These “forever chemicals” are increasingly found in water sources across the country, including some in Texas. While research is ongoing, some studies suggest a link between PFAS exposure and immune system dysfunction, potentially increasing the risk of asthma and other respiratory illnesses.
So, how do you know if these contaminants are present in your Austin tap water at levels that could be affecting your health? The first step is to test your water.
Here’s a step-by-step guide:
Choose a Testing Method: You have two main options: a DIY testing kit or a professional lab test. DIY kits are readily available online and at hardware stores, offering a quick and affordable way to screen for common contaminants like chlorine, lead, and nitrates. However, they may not be as accurate or comprehensive as a lab test. For a more thorough analysis, consider a certified laboratory.
Find a Certified Lab: Look for a lab certified by the Environmental Protection Agency (EPA) or the Texas Commission on Environmental Quality (TCEQ). These labs adhere to strict quality control standards and use validated testing methods. You can find a list of certified labs on the TCEQ website.
Collect Your Sample: Follow the lab’s instructions carefully when collecting your water sample. This usually involves flushing the tap for a few minutes before collecting the sample in a sterile container. Avoid touching the inside of the container to prevent contamination.
Submit Your Sample: Ship your sample to the lab promptly, following their packaging and shipping instructions.
Interpret Your Results: Once you receive your results, compare them to the EPA’s Maximum Contaminant Levels (MCLs). These are the legal limits for contaminants in drinking water. If any contaminants exceed the MCL, or if you have concerns about levels below the MCL, consult with a water treatment professional or your doctor.
Common Pitfalls and How to Avoid Them:
Using Expired DIY Kits: DIY testing kits have expiration dates. Using an expired kit can lead to inaccurate results. Always check the expiration date before using a kit.
Contaminating the Sample: Touching the inside of the sample container or using a non-sterile container can contaminate the sample and skew the results. Follow the lab’s instructions carefully and use only the provided sterile container.
Misinterpreting Results: Understanding the lab report can be challenging. Don’t hesitate to contact the lab for clarification or consult with a water treatment professional.
Now, let’s say your water test reveals elevated levels of chlorine, DBPs, or other contaminants. What can you do to protect your respiratory health?
Here are some practical filtration solutions:
Activated Carbon Filters: These filters are effective at removing chlorine, chloramines, DBPs, and some PFAS. They come in various forms, including pitcher filters, faucet filters, and whole-house filters. For asthma concerns, a high-quality activated carbon filter is a good starting point.
Reverse Osmosis (RO) Systems: RO systems are more comprehensive, removing a wider range of contaminants, including lead, copper, PFAS, and hardness minerals. They are typically installed under the sink and require a separate faucet for filtered water. RO systems are a significant investment, but offer the most thorough filtration.
Whole-House Filters: These filters are installed on the main water line, treating all the water entering your home. They are a good option if you have concerns about contaminants throughout your house, not just in your drinking water. Consider a whole-house filter with a sediment pre-filter to protect your plumbing and appliances.
Real-World Application:
Consider the case of Sarah, a resident of the Zilker neighborhood in Austin. Sarah noticed her asthma symptoms worsening after moving into a new apartment. She initially attributed it to seasonal allergies, but the symptoms persisted even indoors. Suspecting her tap water, she purchased a DIY testing kit and found elevated levels of chlorine and THMs. Sarah then invested in a high-quality activated carbon filter pitcher. Within a few weeks, she noticed a significant improvement in her asthma symptoms. This simple solution made a tangible difference in her quality of life.
Challenges and Considerations:
Filter Maintenance: All filters require regular maintenance, including replacing cartridges or cleaning the system. Neglecting maintenance can reduce the filter’s effectiveness and even introduce contaminants into your water. Set reminders to replace your filter cartridges according to the manufacturer’s instructions.
Cost: Filtration systems can range in price from a few dollars for a pitcher filter to several hundred dollars for a whole-house system. Consider your budget and the severity of your water quality issues when choosing a filtration system.
Water Pressure: Some filtration systems, particularly RO systems, can reduce water pressure. If you have low water pressure to begin with, choose a system that is designed to maintain adequate pressure.
While this article focuses on Austin, the principles apply to any location. Understanding your local water source, testing your water, and implementing appropriate filtration solutions are crucial steps in protecting your respiratory health. Don’t just assume your tap water is safe. Take proactive steps to ensure the water you’re drinking and using is not contributing to your asthma symptoms. Your lungs will thank you.