**Tucson Trackers: Asphalt Lies Crashing Senior Livers?**
By Franklin Everett ShawIt’s a familiar scene in Tucson: the sun beats down, the mountains shimmer in the distance, and the city’s walking and running tracks are filled with people getting their exercise. But what if those tracks, especially the asphalt ones, are silently impacting the health of our senior citizens? It’s a question worth asking, and one that demands a closer look.
Tucson’s love affair with outdoor activity is undeniable. The city boasts an impressive network of walking and running tracks, many of which are surfaced with asphalt. While asphalt is durable and relatively inexpensive, it also releases volatile organic compounds (VOCs), especially in the intense Arizona heat. These VOCs, including benzene, toluene, ethylbenzene, and xylene (BTEX), are known to be harmful to human health, particularly the liver.
Are Tucson’s seniors, who frequently use these tracks for exercise, disproportionately exposed to these toxins? And if so, is this exposure contributing to higher rates of liver disease compared to similar Arizona cities with less asphalt track usage? Let’s delve into the evidence and explore potential solutions.
First, let’s consider the potential link between asphalt exposure and liver health. The liver is the body’s primary detoxification organ. It filters toxins from the blood and breaks them down for elimination. Chronic exposure to VOCs, like those released from asphalt, can overwhelm the liver’s capacity, leading to inflammation, oxidative stress, and ultimately, liver damage.
Seniors are particularly vulnerable. Their livers may already be compromised due to age-related decline, pre-existing conditions, or medication use. This makes them less efficient at processing toxins and more susceptible to the harmful effects of VOCs.
Now, let’s look at Tucson. The city’s extensive network of asphalt tracks, combined with its high temperatures and abundant sunshine, creates a perfect storm for VOC release. Seniors who regularly walk or run on these tracks are likely inhaling these toxins, potentially putting their livers at risk.
Comparing Tucson to other Arizona cities is crucial. Consider Prescott, for example. While Prescott also enjoys a sunny climate, it has fewer asphalt tracks and a greater emphasis on natural trails. If Tucson’s liver disease rates among seniors are significantly higher than Prescott’s, even after accounting for other factors like age, socioeconomic status, and access to healthcare, it could suggest a link between asphalt exposure and liver health.
Unfortunately, pinpointing a direct causal relationship is challenging. Liver disease is complex and can be influenced by numerous factors, including genetics, diet, alcohol consumption, and viral infections. However, by analyzing epidemiological data, conducting environmental monitoring studies, and considering the biological plausibility of the link, we can gain a better understanding of the potential risks.
So, what can Tucson’s seniors do to mitigate these potential risks? Here are some practical tips:
Choose Safer Routes: Opt for walking or running routes with less asphalt exposure. Parks with natural trails, shaded areas, and good ventilation are preferable. The Rillito River Park, with its mix of paved and unpaved paths, offers a good alternative. Consider exploring trails in the Santa Catalina Mountains, but be mindful of elevation and heat.
Time Your Exercise: Avoid exercising during the hottest part of the day, when VOC emissions are likely to be highest. Early morning or late evening are better options.
Support Liver Detoxification: Incorporate liver-friendly foods into your diet. These include:
- Cruciferous Vegetables: Broccoli, cauliflower, and Brussels sprouts contain compounds that support liver detoxification.
- Garlic and Onions: These contain sulfur compounds that aid in the detoxification process.
- Leafy Greens: Spinach, kale, and collard greens are rich in antioxidants and nutrients that protect the liver.
- Beets: Beets contain betaine, which helps protect the liver from damage.
- Green Tea: Green tea is rich in antioxidants that can protect the liver from oxidative stress.
Stay Hydrated: Drinking plenty of water helps flush toxins from the body and supports liver function.
Consider Supplements: Certain supplements, such as milk thistle and dandelion root, may support liver health. However, it’s essential to consult with a healthcare professional before taking any supplements, especially if you have pre-existing liver conditions or are taking medications.
Air Purifiers: Using an air purifier with a HEPA filter in your home can help remove VOCs from the air.
Advocate for Change: Encourage the city of Tucson to prioritize the use of safer, more environmentally friendly materials for walking and running tracks. Explore alternatives like recycled rubber or permeable pavement, which can reduce VOC emissions and improve air quality.
It’s also crucial to investigate the specific materials used in Tucson’s asphalt tracks. Are some types of asphalt more prone to releasing VOCs than others? Are there additives or sealants that can reduce emissions? Conducting material testing and comparing the VOC emissions of different track surfaces can provide valuable insights.
Furthermore, consider the impact of track maintenance practices. Regular sweeping and cleaning can help remove debris and reduce the surface temperature of the asphalt, potentially lowering VOC emissions.
The challenges are real. Convincing city officials to invest in safer track materials can be difficult, especially given budget constraints. Changing ingrained habits and encouraging seniors to adopt new exercise routines can also be challenging.
However, the potential benefits are significant. By taking proactive steps to reduce asphalt exposure and support liver health, Tucson’s seniors can continue to enjoy the city’s beautiful outdoor spaces for years to come. It’s about making informed choices, advocating for change, and prioritizing the health and well-being of our community.
This isn’t just about Tucson; it’s a cautionary tale for any city with a love of asphalt and an aging population. By understanding the potential risks and implementing practical solutions, we can create healthier and more sustainable communities for everyone.