Timber is a ubiquitous material used in various applications, from construction to furniture-making. However, not all timber is created equal, and some come with a hefty environmental and health cost. In New Zealand, timber treated with copper chromium arsenic (CCA) is widespread, sporting a distinct green-gray hue. Still, the question remains: how many people are aware of its detrimental effects?
Firstly, CCA-treated timber pollutes the environment. The chemicals used in the treatment process leach into the soil, contaminating the surrounding area. This can have severe consequences, such as harming plant life and disrupting the local ecosystem. Additionally, when disposed of improperly, CCA-treated timber can further contribute to pollution, posing a risk to both human health and the environment.
Moreover, CCA-treated timber is associated with health risks. Exposure to the chemicals used to treat the timber can lead to various health problems, including skin irritation, respiratory issues, nausea, and vomiting. Workers involved in the manufacturing or handling of CCA-treated timber are particularly vulnerable to these health risks.
Finally, CCA-treated timber presents a significant challenge to transitioning to a circular bioeconomy. A circular bioeconomy aims to eliminate waste by reusing materials and resources continuously. However, CCA-treated timber poses a problem as it is considered toxic waste that cannot be easily recycled or repurposed. This creates a hurdle in achieving a fully sustainable and circular economy.
Despite the known negative effects of CCA-treated timber, its use continues to persist in New Zealand. This highlights the need for greater public awareness and action towards sustainable practices. Alternatives to CCA-treated timber exist, such as non-toxic treatments or using naturally durable timber species. By making informed choices and opting for sustainable materials, we can play our part in creating a healthier and more environmentally-friendly future.
