Dust management is an essential part of managing a construction site. From ensuring the health and safety of site workers to complying with environmental regulations, it’s essential to implement dust management systems on-site. 

A dust monitoring system can help you effectively manage and control dust on a construction site. Before we get stuck into what equipment is used for dust monitoring, let’s take a quick look at what particulate matter actually is:

What is Particulate Matter? (PM10 and PM2.5)

Particulate matter, often referred to as particle pollution or PM, consists of extremely small solid particles and liquid droplets suspended in the air. This matter can include various components such as dusts, nitrates, sulfates, organic chemicals, metals, soil or dust particles, and allergens like pollen or mold spores.

The size of the particles influences their potential health risks and overall impact on human health:

PM10:

These are particles with a diameter of 10 micrometers or less. They are small enough to bypass the throat and nose and enter the lungs, where respirable dust can cause serious health issues affecting both the heart and lungs.

PM2.5:

These particles have a diameter of 2.5 micrometers or less, allowing them to penetrate deep into the lungs and even enter the bloodstream. Long-term exposure to PM2.5 has been proven to cause adverse health effects. Notably, PM10 particles include PM2.5 particles within their range.

What are the Australian standards for dust monitoring?

There are several different standards and regulations that construction sites need to adhere to to remain compliant. These standards and regulations are designed to protect the local community, the surrounding environment and site workers through appropriate control measures.

Safe Work Australia Workplace Exposure Standards (WES)

The WES details exposure standards for airborne contaminants in the workplace. Under the WES, substances are assigned a time weighted average (TWA), short term exposure limit (STEL) or peak limitation (peak) value depending on the effect of the substance.

Australian standard: 3580

The AS 3580 Series provides methods for sampling and analysing airborne particles, including:

• AS 3580.1.1-2007: Guide to siting air monitoring equipment.
• AS 3580.9.6-2015: Determination of suspended particulate matter (PM10) using a tapered element oscillating microbalance (TEOM).
• AS 3580.10.1-2016: Methods for sampling and gravimetric determination of PM2.5 and PM10 in ambient air.

The National Environment Protection (Ambient Air Quality) Measure (NEPM)

The NEPM sets ambient air quality standards for particulate matter, including PM10 and PM2.5, which are common indicators of dust pollution at construction sites.

State and territory regulations

In addition to observing national standards and regulations, construction sites must also comply with dust monitoring guidelines set out by the local authorities. These regulations are often governed by the state or territory Environment Protection Authority (EPA) and enforced by the local council.

For instance, in New South Wales, the state government worked with SafeWork NSW to implement a state-wide Dust Strategy. 

How do you monitor dust?

Most dust particles can’t be seen with the naked eye, which is why it’s essential to conduct dust monitoring on-site to ensure your construction project complies with the relevant standards and regulations. 

The first step in monitoring dust is to identify the common sources and activities that generate dust, such as excavation, demolition, material handling and vehicle movement. While you’re at it, be sure to determine areas on-site and nearby that are sensitive to dust, including residential areas, schools or natural habitats. 

From here, you can identify monitoring locations. To get accurate readings of dust dispersion, place monitors near dust sources, site boundaries and sensitive receptors. It’s important to ensure monitors are placed at appropriate heights (breathing zone level for workers) and distances from dust sources to capture relevant data. 

There are several types of dust monitoring devices, so it’s important to make sure you pick the right tool for the job. 

What are the different types of dust monitors?

There are three main types of dust monitors: real-time monitors, high-volume air samplers, and personal dust monitors. At Control Hire, we have a range of monitoring equipment available for hire, including our dust monitor, our real-time silica dust monitor and our environmental dust monitor.

Here’s a quick rundown of how each of these monitors works so you can determine what is the right dust monitoring equipment for you:

Portable real-time dust monitors

Portable real-time dust monitors, such as light-scattering instruments, are often used to measure particulate matter levels on-site. These provide immediate data and help in taking prompt corrective actions.

Use our industrial particulate matter (PM) sensor to monitor air quality and dust emissions on site. Providing high-range measurements from 0 to 100,000 μg/m3, this dust monitor can be used to monitor dust levels in the surrounding environment and small silica particles.

High volume air samplers

High volume air samplers are used to collect dust samples over a 24-hour period for subsequent analysis in a laboratory. This method is often used for compliance purposes.

Our environmental dust monitor is ideal for measuring dust levels on construction sites and other work environments. Suitable for use indoors and outdoors, this monitor provides real time data to ensure your workplace remains safe.

Personal dust monitors

Personal dust monitoring devices are worn by workers to monitor their dust exposure throughout the workday. Tracking personal dust levels allow workers to identify potential health risks sooner and take action to stay protected.

The Real-Time Silica Dust Monitor provides accurate and reliable data on silica levels in real time so that you can implement dust control solutions, like ventilation and extraction systems immediately. This monitor uses optical sensing technology to identify and measure particulate matter in the target RCS identification range of 1 μm – 10 μm.

Other dust control solutions

Monitoring dust on site is one thing, but it’s important to implement a range of different dust control solutions to minimise the impact of dust on construction sites. 

Water spraying systems, including fog lances and dust cannons, can be used to suppress dust and airborne particles on construction sites. These dust control solutions spray a fine mist into the air, which binds to dust particles causing them to drop to the ground. 

When it comes to reducing dust indoors, air scrubbers are ideal for capturing hazardous dust, like silica and lead, in confined spaces. Available in a range of sizes, small air scrubbers can be positioned near the source to extract dust from the air, while larger air scrubbers can be used to filter air on larger construction projects. 

You may also be able to use a cutting station to limit dust exposure by isolating the activity inside the barrier. Available in several different sizes, cutting stations are quick to erect and easy to move around your site. Not only do cutting stations help to reduce the spread of dust, but they’re also ideal for minimising noise pollution. 

Whether you’re looking for a dust monitoring system or dust control solutions, Control Hire can help. Specialising in dust management systems for construction, Control Hire has a range of dust control equipment available for hire. For hassle-free hazard control, contact the Control Hire team for a free quote or on-site consultation.