Western Environmental was engaged to oversee the remediation of several areas impacted by loose fill asbestos along the Roebourne-Wittenoom Road, as well as preparing a detailed risk assessment and simulated exposure exercise to quantify risks presented to human receptors who may be exposed whilst travelling along the road; this included air quality monitoring during the remedial works, simulated exposure monitoring and advanced elutriation techniques to reach ultra low level fibre counting as part of the laboratory analysis program.