What is DPM?

In 2012, the World Health Organisation, classified diesel exhaust
as carcinogenic to humans (Group 1)

Understanding Diesel Particulate Matter (DPM) in Underground Coal Mining

Diesel Particulate Matter (DPM) is a significant concern in the coal mining industry, particularly for underground operations where diesel-powered machinery is widely used. DPM consists of tiny particles that are released from the exhaust of diesel engines and can pose serious health risks if inhaled over long periods.

The Importance of DPM Control in Mining

Controlling DPM emissions is not only a regulatory requirement but a moral obligation for ensuring the health and safety of coal mine workers. By investing in reliable DPM management solutions, mining operations can protect their workforce, reduce health risks, and improve overall productivity.


The Risks of DPM

DPM is composed of carbon particles, organic compounds, and trace amounts of metals. When these particles accumulate in confined environments like underground mines, they can be hazardous to workers, contributing to respiratory issues, cardiovascular problems, and even cancer. Short and long term effects include:


Short-term (Acute) effects: Short term exposure to high concentrations of diesel exhaust can irritate the eyes, nose, throat and lungs and cause light-headedness, coughing, phlegm and nausea. Very high levels of diesel exhaust exposure can lead to asphyxiation from carbon monoxide poisoning.

Long-term (Chronic) effects: Long term exposure can worsen asthma and allergies and increase the risk of heart and lung disease. Diesel engine exhaust emissions contain many known carcinogenic substances, for example PAHs adhere to the surface of the DPM. DPM is easily inhaled into the respiratory tract and there is epidemiological evidence which indicates ongoing exposure to diesel exhaust emissions may result in an increase in the risk of lung cancer.

Why Is DPM Dangerous?

Size of the Particles

DPM particles are small (less than 2.5 micron in diameter), making them easily inhaled and able to penetrate deep into the lungs.

Long-Term Exposure

Prolonged exposure to DPM can lead to chronic health issues, including reduced lung function and heart disease.

Health & Safety Standards

Mining regulations worldwide have recognised the dangers of DPM, implementing strict exposure limits to protect workers from its harmful effects. 

How DPM Is Managed

Controls exist in an underground coal mining environment to manage emissions from diesel equipment, including:

  • After treatment systems, including Diesel Particulate Filters
  • Ventilation
  • New and modern diesel engines
  • Diesel tag boards
  • Machine maintenance and engine tune
  • Operator and trade culture and training
  • Diesel fuel quality

Our Solution

Our independently tested, compliant, high-efficiency, high temperature, long life Diesel Particulate Filters are proven to minimise DPM emissions. They help create safer underground environments by significantly reducing the amount of harmful particles that workers are exposed to.

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