Health Implications of Brake Dust
Recent research indicates brake dust, particularly from non-asbestos organic (NAO) pads, may be more harmful to lung cells than diesel exhaust dust, with higher toxicity linked to its copper content.
The toxicity of brake dust has been associated with lung diseases such as cancer, asthma, and chronic obstructive pulmonary disease, highlighting the need for regulation of non-exhaust emissions.
Policy and Future Directions
Current vehicle regulations primarily target exhaust emissions, leaving non-exhaust emissions like brake dust unregulated. Upcoming 7 emissions standards may address this gap.
The shift to electric vehicles (EVs) does not eliminate non-exhaust dust emissions, suggesting a need for innovation in brake materials and dust-trapping mechanisms to mitigate health risks.