Clarity designs biological monitoring around your actual processes, exposure scenarios and risk assessments – not generic timetables. We help you decide who to test, when to test and how often, so results truly reflect day‑to‑day conditions.
We integrate biological monitoring into your existing health surveillance and site routines, planning testing windows that fit around shifts and production. We provide clear instructions and support for sample collection, storage and transport to accredited laboratories.
Our reports translate technical lab output into plain‑language guidance. You see where there is no evidence of exposure, where low‑level exposure suggests improvements are needed, and where results demand immediate investigation and corrective action.
Biological monitoring can sit alongside health surveillance, respiratory assessments, spirometry and other checks, giving you a more coherent, cost‑effective approach to managing chemical and respiratory risk.
Clarity can design biological monitoring for a range of workplace substances where this approach is recommended or widely used, for example:
Respiratory sensitisers such as isocyanates used in paints, coatings, foams and resins
Certain solvents and organic chemicals
Metals and other agents with recognised biological indicators
We will work with you to identify which substances are relevant to your processes and what type of monitoring is most appropriate.
A typical programme will involve:
Planning – identifying relevant substances, roles and tasks, and agreeing who will be included and at what frequency.
Sample collection – usually timed to coincide with or follow periods of potential exposure, using appropriate containers and handling methods.
Laboratory analysis – accredited labs analyse samples for agreed markers (for example, metabolites of isocyanates or other substances).
Interpretation and follow‑up – Clarity interprets the findings with you, highlighting what they mean for controls, training and work practices, and what needs to happen next.
The aim is not to catch people out, but to provide objective feedback on how well your exposure controls are working in real life.
Biological monitoring results support you to:
Confirm where exposure is being well controlled
Identify where controls, PPE or work practices need improvement
Prioritise training, engineering changes or process adjustments
Demonstrate that you are actively checking whether your risk controls protect people in practice
This evidence can be invaluable when you are reporting internally, engaging with workforce representatives or responding to external scrutiny.
If your workforce is exposed to noise, vibration, chemicals, dust or other hazards, Clarity can help you design and deliver a health surveillance programme that protects people, supports compliance and fits the way your business really operates.
Biological monitoring is the measurement of a chemical or its breakdown products in a biological sample (usually urine, blood or breath) to indicate how much of a substance has entered a worker’s body via all routes of exposure, helping assess workplace exposure and the effectiveness of control measures.
Biological monitoring is typically used where employees may be exposed to certain chemicals—such as isocyanates, nickel, chromium, styrene, toluene and other solvents—and where employers want to check that engineering controls, PPE and work practices are adequately limiting absorption of these substances.
In the UK, biological monitoring is generally not a statutory requirement under COSHH, except in specific cases such as monitoring blood lead levels under the Control of Lead at Work Regulations. In most situations it is a recommended tool to support exposure assessment and health surveillance, guided by HSE and industry standards.
Biological monitoring usually involves planned collection of biological samples (for example urine or blood) from workers in defined roles, laboratory analysis to determine levels of the substance or its metabolites, comparison with relevant guidance values or benchmarks, and interpretation by occupational health and exposure specialists.
Results can show whether control measures are effectively limiting exposure, highlight workers or tasks with higher absorption, inform improvements to PPE, ventilation or work processes, and support early intervention before adverse health effects occur.
Frequency depends on the substance, exposure pattern and risk assessment. Programmes are normally designed with an occupational health professional to ensure monitoring is targeted, proportionate and aligned with process changes, introduction of new chemicals or evidence of potential over‑exposure.
Clarity supports biological monitoring by helping define the monitoring strategy, arranging sample collection through onsite clinics, Mobile Medical Units or local clinics, coordinating laboratory analysis and providing clear, actionable reports to employers.
Biological monitoring programmes are set up with attention to ethics, consent and confidentiality. Clarity operates under clinical governance and data protection standards, ensuring workers understand the purpose of monitoring, that results are handled sensitively and securely, and that only appropriate summary information is shared with managers.
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