Environmental monitoring is integral for identifying potential health, safety and compliance risks on live construction sites

Environmental monitoring is the process of observing, collecting and assessing data to understand the quality of a particular environment, detect changes and evaluate potential impacts as a result. Analysing environmental data over time can help identify trends and inform future decision-making.

When considered in the context of construction activity, environmental monitoring involves measuring parameters such as air quality, noise levels, vibration output and water quality to assess the environmental impact of that activity and develop strategies to minimise the impact. Environmental monitoring is integral for identifying potential health, safety and compliance risks on live construction sites and for helping implement appropriate measures to mitigate those risks.

Why is environmental monitoring important during construction?

Monitoring in construction involves the placement of sensors on or around buildings, infrastructure and construction sites. The measurements provided by these sensors gives a real-time picture of the environment or condition of a structure.

Data from environmental monitoring helps to highlight when certain construction activities pose a risk to individual team members, local communities and surrounding buildings and environments so protective measures can be put in place before a hazard becomes unsafe or unmanageable.

6 key benefits of environmental monitoring during construction:

• Helps to identify potential risks and hazards from activity taking place
• Keeps accurate and real-time data logs to prove compliance with regulation
• Can help inform decision-making and internal policy development
• Disproves unfound allegations to avoid costly remedial work or litigation
• Tests and evaluates existing environmental management strategies
• Acts as an early warning system for environmental impacts, promoting sustainability

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The risks of not having environmental monitoring in place

If hazards breach pre-set limits by HSE, the Environment Agency and even local councils, there can be serious penalties including:

• Increased chance of complaints and costly litigation
• Indefinite delays whilst investigations are underway and works cannot continue
• Fines and, in some extreme circumstances, prosecution of individuals
• Company reputation being brough into disrepute

Don’t forget – over-exposure to certain hazards can have severe health consequences as well as project risk. Hazard exposure can impact the long-term health of teams working on a project.

What types of environmental monitoring are available?

As with most construction projects, the type of monitoring that benefits you and your team will depend on the type of activity taking place, the location of the project etc. Some of the most common hazards that require measuring during construction are dust, noise, vibration and water quality.

Air Quality

Air quality can be reduced in a number of ways:

• Significant dust and fumes being created from construction or maintenance activity
• Works taking place in confined spaces with limited access to fresh air
• Specific working environments at increased risk of gas exposure, for example sewer work encountering H2S build-up.

Dust monitoring is important wherever people could be affected. Dust is both hazardous and a nuisance so monitoring the air quality is especially important near homes, the public and sensitive environments. Even when the health risks are lower because of work taking place outside, dust can still cause complaints and damage a site’s reputation.

Sensitive environments such as hospitals, data centres and food or pharmaceutical factories will need to be extra cautious when works are taking place. Should dust from works become airborne and migrate outside of the work area, it can interfere with clinical areas, equipment and machinery if not properly measured and controlled when required.

Maintaining adequate air quality can be vital, not only to a project’s success, not only to team health but to whether your client can continue with their regular operations.

Noise Levels

When construction involves noisy activities and loud machinery or equipment such as demolition, excavation etc, there is a risk that noise can disrupt nearby neighbours or businesses, especially if taking place outside of daylight hours or in rural and otherwise quiet areas.

By monitoring noise levels, it empowers the site team with a log of data to prove compliance when needed and alerts them when activity may approach dangerous levels, allowing them to intervene and implement noise reduction measures. This may be pausing work to reduce noise when timelines allow or could be the introduction of temporary acoustic barriers or enclosures to best protect both people on-site and the nearby environment.

Vibration Output

Work such as piling, demolition, jackhammering and more will create a level of vibration which may be felt by those nearby. Vibrations are not just a risk to people but can impact the structural integrity of neighbouring buildings, especially if the site is in a busy city.

If a nearby building is already subject to cracks, vibration from work nearby could worsen existing damage and be partially liable for additional damage caused. As vibration exposure is regulated, measuring the vibration output in real-time and adjusting when necessary will help protect people near the work and maintain the integrity of buildings close by.

If vibration monitoring is not in place, it can leave contractors open to complaints as it is difficult to prove whether vibrations are coming from site activity. Having monitoring helps protect the project, reassure neighbours and separate real issues from perceived ones.

Water Quality

Although slightly different from other environmental parameters, water quality is becoming increasingly important for construction sites where work takes places near a water source or where water may need to be discharged from site in-line with an environmental permit.

By measuring water quality near active works before, during and as the project completes, you will have an accurate log of data to show that the construction activity has had minimal impact on local water sources.

External factors can affect water quality, not just your site. Other nearby sites and natural changes can influence the water, so monitoring both upstream and downstream gives you accurate data for your own works. This helps demonstrate compliance and quickly address any concerns raised later in the project.

Don’t forget – environmental monitoring may not necessarily be the best option. For environments such as confined spaces where hazards are more targeted and individuals are more at risk of hazard exposure, personal monitoring may be more appropriate.

Best practice for environmental monitoring on construction sites

After you have determined that environmental monitoring would be best used on your project, it is important to follow best practice and ensure it is used as effectively as possible. Some best practice considerations include:

1. Develop a thorough plan for monitoring throughout the project including details on the parameters to be monitored, how they will be monitored, frequency of monitoring and analysis etc.
2. Select the monitors that work best for you. Some teams will undergo a free hazard control assessment to determine which monitors would work best for activity taking place, establish baseline measurements, best location for the monitors etc.
3. Install the monitors in an appropriate location (usually at the boundary of an active site) and ensure your chosen limits are set-up and programmed in.
4. Train on-site teams on the monitoring plan, equipment and any software so they are fully empowered to read, adjust and interpret monitoring information as required.
5. Use information for future planning, integrating data, patterns and trends identified. For example, if excavation in one area creates noise close to pre-set limits, try to plan the project so that other noisy activity is avoided during excavation works to keep below the limit.

Environmental monitoring with RVT Group

Dust Monitors

Our dust monitors available for hire are designed to deliver accurate measurement of PM10, PM2.5, PM1, or TSP at 1-minute intervals. These units are ideal for use both indoors and outdoors, built to withstand long-term outdoor monitoring in all weather conditions.

See all dust monitors >

Noise Monitors

RVT Group offers a range of noise monitors that record and log data from noisy activities in real-time. Our range includes a traffic light-style system so teams can use the visual cues to identify when the noise is too loud in close-quarters. All noise monitors are designed to plug and play from a standard 110v outlet.

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Vibration Monitors

We offer two different vibration monitors, what works best for you will depend on the type of application it will be used for. Both monitors offer remote access via a web connection, removing the need to download and learn new software.

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Water Monitors

Our EnviroHub In-Stream Monitor is highly sensitive and designed to report on the quality of water in ponds, rivers and brooks etc. It can measure turbidity, suspended solids, pH and temperature, with further bespoke options available on request.

See the water monitor >

It’s likely that your site and project will encounter some, if not all, of these hazards and by having monitoring on site, it minimises the need for manual data tracking and allows teams to react only when necessary so they can focus on the job at hand.

For specialist advice on what monitoring solution will work best for your project and site activities, speak with a technical consultant today >