**Austin AC: Is Toxic Coolant Crashing Summer Livers?**

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
January 3, 2026

The Texas sun beats down, and your AC unit is working overtime. But what if that cool air comes at a hidden cost? Could a silent freon leak be slowly impacting your health, specifically your liver? It’s a question many Austin residents should be asking, especially during these scorching summers.

Freon, the refrigerant in most AC systems, isn’t something you want to breathe. While acute, high-level exposure is rare, chronic low-level exposure from a slow leak can be insidious. And while the link between freon and liver damage isn’t widely discussed, the potential is real, and it’s worth understanding, especially in a city like Austin where AC is a necessity.

So, let’s dive into the potential dangers lurking in your AC, how to spot them, and what you can do to protect yourself.

First, let’s talk about freon itself. It’s a colorless, odorless gas, which makes detecting leaks tricky. The older type, R-22, is being phased out due to its ozone-depleting properties, but it’s still present in many older systems. The newer replacement, R-410A (Puron), is considered less harmful to the ozone layer, but it’s still a potent greenhouse gas and can be dangerous to human health.

Now, the big question: can freon exposure lead to elevated liver enzymes? The answer is a qualified yes. Studies on animals and documented cases of high-level exposure in humans have shown a link between freon inhalation and liver damage. Freon can be metabolized by the liver, producing toxic byproducts that can injure liver cells. This injury can manifest as elevated liver enzymes (ALT and AST) in blood tests, indicating liver inflammation or damage.

However, the key here is exposure level. A small, well-ventilated leak is unlikely to cause significant harm. But a larger leak in a poorly ventilated space, or prolonged exposure over time, could potentially lead to problems, especially for individuals with pre-existing liver conditions or other health vulnerabilities.

So, how do you know if you have a freon leak in your Austin home? Here’s a step-by-step guide:

  1. Listen Carefully: A hissing or bubbling sound coming from your AC unit or refrigerant lines is a classic sign of a leak. Pay close attention to the outdoor condenser unit.

  2. Check for Ice: Ice buildup on the refrigerant lines can indicate a leak. The lack of refrigerant causes the lines to get too cold, leading to ice formation.

  3. Poor Cooling Performance: If your AC is running constantly but not cooling your home effectively, a freon leak could be the culprit. The system has to work harder to compensate for the lost refrigerant.

  4. Unusual Odors: While freon is technically odorless, a large leak can sometimes produce a slightly sweet or musty smell. This is often due to the oil that’s mixed with the refrigerant.

  5. High Energy Bills: A leaking AC unit has to work harder, leading to increased energy consumption and higher electricity bills. Compare your recent bills to previous years to see if there’s a significant jump.

  6. DIY Leak Test (Use Caution!): You can use a soapy water solution to check for leaks. Mix dish soap with water and spray it on the refrigerant lines and connections. If bubbles form, you’ve likely found a leak. Important: Turn off the AC unit before spraying any liquid on it. Wear gloves and eye protection. If you’re not comfortable doing this, call a professional.

If you suspect a leak, don’t ignore it. Contact a licensed HVAC technician in Austin immediately. Look for companies that specialize in refrigerant leak detection and repair. They have specialized equipment to pinpoint the leak and safely repair it.

Now, let’s talk about the liver. If you’re concerned about potential freon exposure and its impact on your liver, talk to your doctor. Ask for a liver enzyme test (ALT and AST). This simple blood test can help determine if your liver is functioning properly.

Here’s the tricky part: elevated liver enzymes can be caused by many things, including alcohol consumption, medications, fatty liver disease, and viral infections. So, a positive test doesn’t automatically mean freon exposure is the cause. However, if you have a known freon leak and elevated liver enzymes, it’s something to investigate further with your doctor.

What are the specific liver toxicity risks of freon exposure? As mentioned earlier, freon can be metabolized into toxic byproducts that damage liver cells. This can lead to inflammation (hepatitis), cell death (necrosis), and in severe cases, liver failure. The severity of the damage depends on the level and duration of exposure, as well as individual factors like age, health status, and genetic predisposition.

Here are some common mistakes people make when dealing with potential freon leaks:

  • Ignoring the Problem: Many people dismiss a slow leak as a minor inconvenience. They might top off the refrigerant themselves without fixing the underlying problem. This is dangerous and can lead to further exposure.

  • DIY Repairs: Attempting to repair a freon leak yourself is not recommended. Refrigerant handling requires specialized equipment and training. Improper repairs can release more freon into the environment and pose a health risk.

  • Not Ventilating the Area: If you suspect a leak, open windows and doors to ventilate the area. This will help reduce the concentration of freon in the air.

  • Using Inexperienced Technicians: Not all HVAC technicians are created equal. Choose a licensed and experienced technician who specializes in refrigerant leak detection and repair. Ask for references and check online reviews.

  • Assuming Newer Systems are Safe: While newer refrigerants like R-410A are less harmful to the ozone layer, they are still toxic and can pose a health risk if leaked. Don’t assume your newer system is immune to leaks.

Here are some local Austin resources for safe AC repair and medical testing:

  • HVAC Repair: Look for licensed HVAC contractors through the Air Conditioning Contractors of America (ACCA) website or the Better Business Bureau. Some reputable companies in Austin include ABC Home & Commercial Services, Radiant Plumbing & Air Conditioning, and Stan’s Heating, Air & Plumbing.

  • Medical Testing: Contact your primary care physician for a liver enzyme test. You can also find walk-in clinics and urgent care centers in Austin that offer blood testing services. Some options include ARCpoint Labs of Austin and Any Lab Test Now.

  • Environmental Concerns: If you’re concerned about the environmental impact of freon leaks, contact the Texas Commission on Environmental Quality (TCEQ). They have resources and information on refrigerant handling and disposal.

In conclusion, while the risk of significant liver damage from a minor freon leak is relatively low, it’s not something to ignore, especially in Austin’s hot climate where AC is essential. By being proactive, identifying potential leaks early, and seeking professional help, you can protect your health and the environment. Don’t let a silent leak compromise your well-being. Take action today to ensure your AC system is running safely and efficiently.

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