Protecting the health of workers and demonstrating compliance with HSE Workplace Exposure Limits (WELs). We deploy calibrated instrumentation on-site, produce legally compliant assessment reports, and recommend practical mitigation where WELs are approached or exceeded.
Employers have a legal duty under the Control of Substances Hazardous to Health (COSHH) Regulations 2002 to assess and control employees' exposure to hazardous substances in the workplace, including airborne dust, fumes, vapours and biological agents. Where engineering controls cannot reliably maintain exposure below HSE Workplace Exposure Limits (WELs), monitoring is required to demonstrate compliance. Viridian Air provides independent, calibrated monitoring services across a wide range of industries. Our reports are prepared to meet HSE requirements and, where needed, can support enforcement actions or insurance assessments.
Indoor air quality beyond WELs. Many workplaces — particularly offices, schools and healthcare facilities — are concerned about air quality parameters such as CO₂, total VOCs and fine particulates that fall outside formal WEL frameworks but affect staff productivity, wellbeing and absenteeism. We provide tailored indoor air quality surveys for these settings as well.
Our monitoring programmes are designed around the specific activities, materials and processes in your workplace. Typical parameters include:
We review your workplace activities, materials and existing controls to design a proportionate monitoring programme. We identify the most at-risk tasks and workers, and select appropriate monitoring methods (personal, static or real-time) for each parameter.
Our team deploys calibrated instruments on-site during representative work activities. Personal monitoring uses validated sampling pumps and gravimetric analysis; real-time monitoring uses optical instruments for immediate results. We ensure minimal disruption to normal operations.
Gravimetric samples are submitted to an accredited laboratory for analysis. Results are quality-assured and checked against current WEL values from HSE EH40 before inclusion in the report.
We produce a clear written report comparing measured concentrations against applicable WELs, identifying exceedances or concerning trends, and recommending proportionate engineering controls, process modifications or personal protective equipment where required.
ISO 14644 classification monitoring for pharmaceutical, aerospace and life science facilities.
Planning application air quality assessments from screening to full EIA.
IAQM-compliant AQDRA covering all construction phases.
Tell us about your scheme and we will confirm requirements and provide a fixed-fee quotation within 24 hours.
Specialist air quality consultants for planning applications and workplace compliance across the UK. From initial scoping to submission-ready reports, we work closely with clients and local authorities to ensure a fast, smooth approval process.
