Analysis is used to quantify specific problems within buildings such as stuffiness, headaches, watering eyes/ dry throats and dampness. Real-time carbon dioxide measurements can assess ventilation problems. For example in one office employee's were complaining of stuffiness and headaches. The carbon dioxide levels were found to be as high as 2,500 ppm in certain areas.
Watering eyes and dry throats at a recently refurbished Health Clinic was traced to amines outgassing from the glue used to adhere the carpet to the flooring.
At a Bank in London facing onto a busy high street, pollution (oxides of nitrogen and sulphur dioxide) from passing traffic was found to be entering through the front air curtain. Formaldehyde and acetic acid used as preservatives in furnishings and wood products can be found at elevated levels, often associated with new builds and refitting of offices.
Odours such as mercaptans and hydrogen sulphide from leaking drainage systems can be quantified and traced to source.