ólommentesek

Ólommentesek refers to a category of products or materials that are free from lead. This term is most commonly associated with unleaded gasoline, also known as gasoline without tetraethyllead. Historically, tetraethyllead was added to gasoline to increase its octane rating and prevent engine knocking. However, lead is a toxic heavy metal that poses significant health and environmental risks. Its release into the atmosphere through vehicle exhaust contributed to widespread lead pollution.

The transition to unleaded gasoline began in the 1970s and has become a global standard in most countries. This shift was driven by concerns about the detrimental health effects of lead exposure, including neurological damage, particularly in children, and cardiovascular problems in adults. Environmental regulations played a crucial role in mandating the use of unleaded fuels.

Beyond gasoline, the term "ólommentesek" can also apply to other products where lead has been historically used and is now being phased out or prohibited due to toxicity. Examples include lead-free paint, lead-free solder, and lead-free crystal. Regulations and consumer demand for safer alternatives have led to the development and widespread availability of ólommentesek versions of these products. The objective is to reduce human exposure to lead and minimize its environmental impact.