EBS is dedicated to improving the quality
of the built environment and the health, comfort and productivity of building
occupants. A systematic assessment of the causal agents of stress and
illnesses in buildings is made by a multi-disciplinary team of scientists
and engineers. Technical reports are prepared including recommendations
for remedial action and specifications for the management of sick buildings.
The causal agents of stress and illness in buildings can be divided
into the following categorises: 
| Inorganic |
Gaseous |
S0x, NOx, COx, 0x, Chlorine, Ammonia |
| Liquid |
Aerosols |
| Particulate |
Heavy metals, Mineral fibres |
| Organic |
Very Volatile Organic Compounds
(VVOC) |
Formaldehyde, Benzene, Toluene |
| Volatile Organic Solvents, Compounds
(VOC) |
Solvents, Plasticisers, Wood Preservatives |
Semi-Volatile Organic (SVOC)
|
Pesticides, Fungicides |
| Particulate Organic Matter (POM) |
Soot, Dust |
| Microbes |
Viruses |
Influenza |
| Bacteria, Mycobacteria |
Endotoxins, Legionella pneumophila |
| Fungi, Moulds, Mycoplasmas |
Spores, Toxins, Mycotoxins, Conidia
and Hyphae
|
| Thermophilics |
Thermoactinomyces Vulgaris |
| Actinomycetes |
Saccharopolyspora rectivirgula
(Micropolyspora faeni) |
| Plants |
Seed Plants |
Pollen |
| Anthropods |
Mites |
House-dust mites |
| Insects |
Cockroaches (disease carriers) |
| Animals |
Rodents |
Rats (disease carriers) |
| Insects |
Excretions, Animal dander, Skin,
Scales, Fur, Feathers, Serum proteins |
| Birds |
Disease transmission |
| Humans |
C02, Ammonia, Disease carriers |

| Sensible |
Temperature, Humidity |
(at extremes) |
| Light |
Glare, Flicker, Circadian Dis-synchronisation |
| Noise |
Printers |
| Vibration |
Traffic, Trains, Aircraft |
| Insensible |
Static electricity |
-ve/+ve ion imbalance |
| E/mag radiation: Ionising |
Radon |
| Non-Ionising |
UV under/over exposure Bio-electromagnetic
effects |
|