Mercury vapour is invisible and biologically persistent.
Mercury vapour surveys, surface sampling and remediation oversight for dental surgeries, laboratories, historic chlor-alkali sites, oil and gas equipment, and accidental spill response.
- UK-wide since 2013
- Independent assessments
- ISO 9001 accredited
- Practical control advice
What this means for you
Evidence you can act on and defend.
Measured exposure evidence
Data suitable for HSE, insurers and audits.
Independent assessment
Occupational hygiene review of real exposure risk.
Practical control recommendations
Prioritised actions based on risk and operational practicality.
Compliance support
Evidence to support COSHH and internal governance.
Speak with a mercury specialist
0800 433 7914
sales@sysco-env.co.ukMon–Fri · 08:00–18:00 · Independent advice · Fixed-price scope
Typical response: same working day
What happens next
Most mercury surveys complete in one visit.
We attend with continuous and integrated sampling, map the contamination, advise on controls and verify clearance after remediation.
No unnecessary disruption. No generic paperwork. No unnecessary complexity.
Whether exposure is controlled
A clear yes or no, backed by measurement.
Where the highest risks are
Locations, tasks and roles ranked by exposure.
What actions matter most
A prioritised plan you can budget and schedule.
What you get
Four answers. One clear plan.
You need to know what your workforce is exposed to, whether your controls are effective, what actions matter most, and how to demonstrate control confidently.
That is exactly what we deliver.
Know what your team breathes
We measure real exposure on the people most at risk, using validated methods for mercury vapour — no guesswork.
Know where you stand legally
We compare measured exposure to the EH40 WEL of 0.02 mg/m³ for mercury vapour (8-h TWA).
Know if your controls work
An independent review of your LEV, ventilation, RPE and work practices — what's effective and what isn't.
Get a report you can act on
Clear findings and a prioritised action plan suitable for HSE, insurers and operational management.
Why clients call
If any of this sounds familiar, you're in the right place.
- 01
An auditor is asking
HSE, your insurer or a client wants evidence — not assurances
We provide measured mercury data and a clear technical report that resolves the issue quickly.
- 02
Your team is worried
Operatives are reporting concerns or symptoms
We attend site, quantify workforce exposure and provide clear evidence of current risk levels.
- 03
You suspect a problem
You know there's a risk and you want measured data before it becomes a crisis
We quantify exposure, assess it against current limits and provide a prioritised corrective action plan.
What we answer for you
Three questions, settled.
- Where your people are exposed
- We map the tasks, areas and shifts where mercury matters, then sample what your team actually breathes — not a generic site average.
- Whether your controls are working
- An independent review of your LEV, ventilation, PPE and work practices — what is effective and what requires improvement.
- What you need to fix first
- A prioritised, costed action list — the smallest set of changes that gets you compliant and measurably safer.
How we work with you
From your first call to your action plan.
- 1
We listen first — your site, your concerns, your deadline.
- 2
We walk the workplace with your team to see exposure as it actually happens.
- 3
We sample on the people most at risk, using validated occupational hygiene methods for mercury.
- 4
We assess your existing controls honestly — what's working, what isn't.
- 5
You receive a clear technical report suitable for operational, compliance and regulatory readers.
- 6
We hand you a prioritised action plan you can budget, schedule and defend.
Typical survey outputs
What you receive at the end of the engagement.
- Continuous Hg vapour mapping
- Personal exposure results
- Surface wipe sampling
- Spill clearance verification
- WEL benchmarking
- LEV / hygiene review
- Defensible report
- Occupational health data pack
Client testimony
“Sysco verified the post-spill clearance and gave us a defensible report — straight to our occupational physician.”
— Practice manager
UK dental group
Typical environments we assess
Wherever mercury risk affects your people.
- Dental practices
- Laboratories
- Petrochemical equipment
- Decommissioning
- Historic chlor-alkali sites
- Spill response
Background
Workplace mercury, in detail.
Where mercury is encountered
Dental amalgam in surgery floors and traps, historic laboratory thermometers and manometers, fluorescent tube breakages, gas industry pigging operations, chlor-alkali process plant, and uncovered legacy contamination during demolition.
How we monitor
Continuous direct-reading mercury vapour monitors (gold-film or atomic absorption) for area mapping and personal sampling, plus surface wipe sampling for hand-transfer hazard. Workplace personal sampling against EH40.
Practical controls
Source removal where possible, mercury-specific spill kits, prohibition of vacuum cleaners (other than mercury-specific), enclosed handling under LEV, and post-incident clearance sampling.
Related services
Often assessed alongside mercury.
Asbestos surveys
Management and R&D surveys to HSG264.
Explore 02Lead paint
Pre-disturbance surveys and disturbance monitoring.
Explore 03LEV testing (TExT)
Statutory thorough examination & test of extraction systems under COSHH reg 9.
Explore 04Hazardous substances (COSHH)
Full COSHH exposure assessments across solvents, dusts, fumes and bio-aerosols.
ExploreCommon questions
Mercury — FAQs.
Quick answers to the questions we hear most from operations, HSE and procurement teams.
- What's the WEL for mercury?
- 0.02 mg/m³ for mercury vapour (8-h TWA).
- Do you respond to spills?
- Yes — typically within 24–48 hours for verification and clearance monitoring.
- Dental practice surveys?
- Yes — including pre-refurbishment baselines and waste-trap assessments.
- Decommissioning oversight?
- Yes — including chlor-alkali and oil/gas equipment.
- Bio-monitoring?
- We provide exposure data for occupational health programmes.
- Where in the UK?
- Nationwide UK coverage.
Speak with a mercury specialist
Tell us the source. We'll scope a survey.
Tell us
- where the mercury is,
- the activity of concern,
- any spill or incident detail,
- and your reporting deadline.
We will provide
- a clear scope,
- fixed quotation,
- proposed attendance strategy,
- and expected reporting timeframe.
Send us a brief
Outline the sites, tasks and timelines of concern — we'll reply with a clear scope and fixed quotation.
From the field