Jonathon Squires, Head of Product Strategy, Synectics takes a closer look at the expanding role surveillance has in industrial settings.
In hazardous industrial environments, the consequences of failure extend far beyond security breaches.
Fire, explosions, contamination and injury can result from slight variations that go undetected.
As a result, surveillance is increasingly being deployed not simply to record incidents, but to act as an active control measure – identifying risk early, enforcing safe behaviour and guiding response in real time.
Hazardous materials are often valuable, whether due to their scarcity, their role in critical infrastructure or their potential for misuse.
As such, industrial sites can be attractive targets for theft, vandalism or more disruptive attacks.
Effective perimeter protection remains the first line of defence.
Modern surveillance systems support perimeter and intruder detection through a combination of fixed and mobile cameras, thermal imaging and intelligent analytics capable of distinguishing genuine threats from environmental noise.
When integrated with access control systems, surveillance systems provide visual verification of alarms and ensure that only authorised personnel can enter restricted zones.
The UK’s critical infrastructure sector favours this layered approach to surveillance.
Electric and gas utility operators combine perimeter surveillance with access control, lighting and intrusion detection.
In these environments, the ability to detect, track and assess an intruder before they reach sensitive assets can significantly reduce both safety and operational risks.
For hazardous sites, early detection is critical.
An unauthorised individual entering an area containing flammable gases or volatile substances presents a risk not only of theft or sabotage, but of accidental ignition or contamination.
Surveillance systems that provide real-time situational awareness allow security teams to intervene quickly.
Another key concern in hazardous environments is ensuring that materials remain stable and fit for purpose.
Many hazardous goods are sensitive to environmental conditions, with temperature fluctuations, gas build-up or moisture ingress, posing serious safety and quality risks.
Hazardous environments often occur in industrial settings where combustible dusts, such as grain, wood, chemicals and metals, are present.
When fine particles become airborne in confined or semi-confined spaces and are exposed to an ignition source, they can pose a serious fire or explosion risk.
Biomass is a pertinent example. Stored biomass can self-heat, releasing gases and in extreme cases, leading to fires or explosions.
Similar risks apply to chemicals, fuels and some industrial by-products.
Here, surveillance systems equipped with thermal and radiometric imaging provide a non-contact method of continuously monitoring material condition across large storage areas.
Thermal cameras identify atypical heat build-up long before it becomes visible to the human eye, enabling early intervention and reducing the likelihood of escalation.
When combined with gas detection sensors and environmental monitoring, these systems offer a comprehensive view of storage conditions, supporting both safety and quality control.
From an operational perspective, maintaining correct storage conditions is often critical to downstream manufacturing processes.
Materials that degrade due to poor temperature control or contamination can compromise product quality and increase waste.
The presence of hazardous materials places significant responsibility on employers to protect workers’ health and safety.
Surveillance technologies are increasingly being used to support established safety practices.
Video analytics can automatically detect the presence or absence of Personal Protective Equipment (PPE), such as hard hats, high-visibility clothing or respiratory protection and trigger alerts when behaviours are non-compliant.
This approach enables consistent enforcement of safety rules without relying on manual oversight.
Beyond PPE, analytics can be configured to enforce operational protocols, such as ensuring that areas designated for two-person working do not contain lone workers or identifying unsafe behaviour near hazardous processes.
In high-risk environments, even slight deviations from procedure have serious consequences – early intervention is essential.
Integration with lone worker and person-down sensors further enhances protection.
If a worker becomes immobile, enters a restricted zone or triggers an emergency alert, surveillance systems can provide immediate visual context to response teams to assess the situation and deploy assistance.
Hazardous industrial sites are often complex, with sprawling layouts and multiple buildings.
Traditional camera views alone may not provide sufficient context for effective monitoring and response.
Advanced surveillance systems now allow operators to seamlessly switch between live video, street-level imagery and detailed CAD maps of the site.
This layered approach enables security and safety teams to visualise incidents within the broader operational environment, including nearby utilities, access routes and evacuation points.
For large or multi-site operators, mapping functionality supports faster orientation during incidents and improves coordination between on-site staff and the Alarm Receiving Centre.
When an alarm is triggered, operators can immediately understand where it is occurring, what assets are affected and how best to respond.
Remote access collaboration tools, such as camera sharing and mobile apps, give all parties, including emergency services, real-time situational awareness, helping teams stay informed and make better decisions under pressure.
The value of modern surveillance lies not in the volume of data collected, but in the ability to turn that data into timely, actionable insight.
Integrated rules engines allow operators to define specific combinations of events, thresholds and conditions that warrant investigation or intervention.
For example, a temperature rise detected by a thermal camera, combined with a gas sensor alert and out-of-hours activity, may trigger a higher-priority alarm than any single event in isolation.
Automated workflows can then guide operators through predefined response procedures, displaying on-screen instructions based on live data.
This approach helps ensure consistency and supports compliance with security protocols.
In hazardous environments, where seconds matter and mistakes can be costly, structured workflows provide reassurance that the correct measures are being followed.
In high-consequence industrial environments, surveillance can no longer be treated as a passive security function.
When integrated with condition monitoring, AI-driven analytics and automated responses, it becomes an active control layer – identifying risk early, enforcing safe behaviour and supporting decisive intervention.
As hazardous sites face growing complexity and scrutiny, surveillance is increasingly central to reducing exposure, preventing escalation and maintaining resilient operations.
This article was originally published in the March edition of Security Journal UK. To read your FREE digital edition, click here.
