| Summary: | Diesel-powered equipment is widely used in the mining industry
due to its superb performance, cost-effectiveness, efficiency as well as durability.
However, there is a potential for miners in underground mines to be overexposed
to high diesel particulate matter (DPM) concentrations with the increasing use of
diesel engines. In 2012, the International Agency for Research on Cancer (IARC)
classified DPM as a carcinogen to humans (group 1) based on sufficient evidence
from animal and epidemiological studies. Regulations and control methods have
been developed to minimize DPM health hazard in underground mines. This paper firstly reviewed the adverse health effects of DPM on humans based on related animal and epidemiological studies. Findings indicated that both short-term
and long-term exposure to high concentrations of DPM have adverse impacts
(acute irritation, asthma, cough, light-headedness, lung cancer, etc.) on humans,
and a recommended limit of DPM concentration (0.1 mg/m3, measured as element carbon) should be established to help reduce miners’ risk of lung cancer.
The effects of DPM control methods were also evaluated, which include source
controls and exposure controls. Finally, an optimum DPM controlling strategy
was obtained to lower DPM concentrations and provide a safe and healthy working environment for miners.
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