Dust affects more than visibility

Most road operators recognise dust as a visibility issue. In reality, dust affects almost every aspect of road operations.

Dust clouds reduce visibility for drivers and machine operators, increasing safety risks. Airborne particles contribute to equipment wear and place additional strain on filters, engines, and moving components. Dust also accelerates road deterioration, resulting in higher maintenance requirements and increased operating costs.

Beyond the site itself, dust can affect neighbouring communities, create environmental concerns, and increase pressure from regulators and stakeholders.

Effective dust control is therefore not simply about reducing nuisance dust. It supports safer, more efficient and more sustainable operations.

The hidden cost of repeated watering

Water can suppress dust effectively in the short term. However, the effect disappears as soon as the surface dries.

When traffic volumes are high and weather conditions are warm and dry, road operators often need to reapply water several times throughout the day to maintain acceptable dust levels. This approach consumes far more than water.

Repeated watering requires:

• Water trucks and support equipment
• Fuel
• Equipment operators
• Equipment maintenance
• Refilling time
• Ongoing management and supervision

Many organisations focus on the cost of water itself. However, the true cost of dust suppression often lies in the resources required to keep watering roads day after day. Reducing unnecessary water use can also support broader sustainability objectives. The challenge becomes even greater during prolonged dry periods, when roads dry faster and watering frequency increases.

The question is not whether water can suppress dust. The question is how much time, fuel, equipment and labour road operators must invest to keep doing it.

Rainfall does not eliminate the dust challenge

A common assumption is that regions with regular rainfall do not need alternatives to water-based dust suppression.

However, dust problems rarely occur when it is raining. They occur when the rain stops.

Road surfaces dry out. Traffic breaks down the road surface. Fine particles accumulate. Dust returns. Rainfall may temporarily suppress dust, but it does not prevent surface fines from becoming airborne once dry conditions return.

This distinction matters because many European site operators and road managers continue to face the same challenge each summer: maintaining dust control during extended dry periods without continuously increasing watering activities.

Rather than focusing on annual rainfall totals, road operators increasingly focus on what happens between rainfall events.

Looking beyond water

For generations, water has served as the default solution for dust suppression on unpaved roads. That is unlikely to change overnight. However, more road operators now recognise that dust control involves far more than simply keeping a road surface wet.

Road performance, maintenance costs, equipment utilisation, water consumption and sustainability objectives all play an increasingly important role in how organisations evaluate dust suppression strategies.

As dry periods become more frequent and road operators seek greater efficiency from their road networks, many are asking a new question:

'Can we achieve effective dust control with less water?'

For a growing number of organisations, øignosulfonate-based binders provide an alternative to repeated watering. Rather than simply wetting the road surface, they bind fine particles together to create a more cohesive and durable surface.