Air Quality Data
|
Parameter |
Advised Limits |
Source |
Proposed Survey Limit to Trigger Monitoring |
|
Temperature |
19 - 20°C Min 16°C Min 13°C with severe physical exercise |
HSE guidance on SBS Workplace Regs 1992 Workplace Regs 1992 |
Outside range 18-2°C |
|
Humidity |
40 - 70% |
HSE Guidance on SBS |
Outside range 40 - 70% |
|
Air Flow Velocity |
0.1 to 0.15 m/s Winter
0.1 to 0.25 m/s Summer
|
HSG202 General Ventilation in the Workplace HSG202 General Ventilation in the Workplace |
>0.15
>0.25
|
|
Carbon Dioxide CO2 |
1000 ppm max 5000 ppm max 15000 ppm |
HSE Guidance on SBS 8 hour OES EH40 15 min OES EH40 |
>1000 ppm |
|
Carbon Monoxide CO |
30 ppm max 200 ppm max |
8 hour OES EH40 15 min OES EH40 |
>10 ppm |
|
Ozone |
0.2 ppm max |
8 hour and 15 min OES EH40 |
>0.1 ppm |
|
Formaldehyde |
2 ppm max |
8 hour and 15 min MEL EH40 |
>1 ppm |
|
Solvents / Gases |
As per COSHH EH40 |
COSHH / EH40 |
No test at survey stage |
|
Dust – Inhalable - Respirable |
10mg / m3 8 hours 4mg / m3 8 hours |
COSHH EH40
|
>5 mg/ m3 >2 mg/ m3 |
|
Bacteria |
1500 cfu / m3 |
CIBSE |
>1500 cfu / m3 |
|
Fungi |
1500 cfu / m3 |
CIBSE |
>200 cfu / m3 |
Key
HSE - Health and Safety Executive
HSG - HSE Guidance Document
SBS - Sick building Syndrome
OES - Occupational Exposure Standard
MEL - Maximum Exposure Limit
EH40 - Workplace Exposure Limits (for COSHH)
CFU - Colony Forming Units
CIBSE - Chartered Institute of Building Service Engineers
