Assessment Of Diesel Particulate Matter
Exposure Among Underground Mine Workers
Author(s)
D. Bertolatti, K. Rumchev & B. Mullins
Abstract
Diesel motor emissions are a major source of ultrafine particles as research
shows that the particulate fraction of diesel exhaust consists mainly of very small
particles, which rapidly agglomerate to form clumps of particles with <1 μm
aerodynamic size. Substantial scientific evidence supports that inhalation of
emissions from diesel exhaust particulates is associated with a range of adverse
health effects. Measurements have shown that underground miners can be
exposed to over 100 times the typical environmental concentrations of diesel
particulate matter (DPM) and over 10 times the concentration measured in other
work environments where diesel engines are common. This paper reports
personal and environmental exposures to DPM in an underground mine in
Western Australia. The findings demonstrated that the DPM concentration
exceeded the provisional 8-hour time weighted average exposure standard of
0.1 mg/m3 for most of the assessed locations. The elemental analysis indicated
high concentrations of silica and iron in DPM which could be potentially
associated with some adverse health effects including respiratory illnesses and
irritating effects. Thermal comfort underground was also assessed and the results
showed non compliance with the standards of the American Society of Heating,
Refrigerating and Air-Conditioning Engineers (ASHRAE).
Keywords: diesel exhaust, diesel particulate matter, fine and ultrafine particles.
1 Introduction
Exhaust particles emitted from in-use diesel vehicles in underground mining
operations are a major source of ultrafine carbonaceous particles, which have the
potential to produce adverse health effects. The particulate fraction of diesel
Keywords
diesel exhaust, diesel particulate matter, fine and ultrafine particles
Related Book
Other papers in this volume
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