Jarrupäästöjen

Jarrupäästöjen, or brake wear emissions, refer to the particulate matter released into the atmosphere from the friction of brake pads against brake discs during braking. These emissions are a significant source of fine particulate matter, particularly PM2.5 and PM10, which can have adverse effects on air quality and human health. Unlike tailpipe emissions, which have been significantly reduced through catalytic converters and stricter fuel standards, brake wear particles are not regulated in the same way.

The composition of jarrupäästöjen varies depending on the brake materials used, which typically include metals like copper, iron, and aluminum, as well as binders and friction modifiers. As these components wear down, they are released as microscopic particles. These particles can remain suspended in the air for extended periods, contributing to urban air pollution. Studies have shown that brake wear can be a dominant source of particulate matter in areas with heavy traffic, sometimes exceeding tailpipe emissions.

The impact of jarrupäästöjen on health is a growing concern. Inhaling fine particulate matter can lead to respiratory and cardiovascular problems. Efforts are underway to mitigate these emissions, including the development of low-emission brake materials and the exploration of advanced filtration systems for vehicles. Public awareness and policy changes are also considered crucial in addressing this non-exhaust emission source.