Indoor Air Quality / Sick Building Assessments
Introduction
Indoor air quality has a major influence on the health, comfort and well-being of building occupants, with poor air quality often being linked to problems associated with Sick Building Syndrome. Symptoms include headaches, eye, nose or throat irritation, dry mucous membranes, dry skin, nasal irritation, breathing difficulties, abnormal taste sensation, distorted sense of smell, tiredness, dizziness, lack of concentration and nausea.
AEC occupational hygiene consultants are able to assess indoor air quality within a number of work place situations.
Indoor air quality depends on a wide range of parameters including, amongst other things, the in-air presence of volatile organic compounds (VOCs), gases such as nitrogen dioxide, ozone and carbon monoxide, particulate matter such as 'PM10' and 'PM2.5' and biological particles including bacteria and fungi. The presence of these components can be influenced by the temperature and humidity within the location.
Effects on health depend upon a wide range of factors and are influenced by the concentration, exposure period and toxicity of the pollutant.
Regulations
Whilst there are no specific regulations associated with indoor air quality, guidance on acceptable levels is available from The Chartered Institute of Building Services Engineers (CIBSE) and the 2006 revision of the Building Regulations, which have set performance criteria for several air pollutants including VOCs, nitrogen dioxide and carbon monoxide.
For an independent review and further information, call our commercial team on 0161 872 7111.
Case Study
AEC recently conducted an indoor air quality assessment within a large public sector facility following concerns from staff regarding their working environment.
During the site visit AEC assessed a number of indoor air quality parameters including temperature, humidity, carbon dioxide and airflow. In addition tests for the presence of formaldehyde were conducted which was possibly being released from new furniture in the area.
The assessment indicated the temperature was too high and relative humidity levels too low. The presence of formaldehyde was detected although not at any significant level.
Steps were taken to reduce the minor formaldehyde exposure, lower the temperature and increase humidity within the office; employees reported feeling comfortable and re-assured.
