Posted By Neil Pearson I had a consultancy customer with this problem and couldn't find any guidance to work to. In the end we commissioned a report by a university professor who was able to identify the exact types and their hazards, and recommend action. If you'd like a contact please email me.

Posted By Neil Pearson I assume that, as in the case of my customer, the problem is one of justifying resources. In the end it was just a question of quoting R5 of the Workplace Regs - the ABSOLUTE requirement to maintain the workplace in efficient state, efficient working order and good repair.

Posted By Lynne Davis This is probably about 95% blackspot mould which occurs when a room is not heated/ventilated properly. The cause is condensation, settling onto cold walls (or windows). Because the types of manufatured plasters sold today, there is a propensity for damp plasters to develop this condition - this is more common than you obviously know. Treatment consists of washing down the walls with a weak soap solution, treating with a fungicidal wash, redecorating and allowing the walls to breathe, that is ventilating and heating the room. It is not a hazard to health but shows indications of either the room is little used or not adequately heated/ventilated. Information for this condition can be obtained from any experienced LA housing or RSL maintenance department.

Posted By Jack From the website: http://www.aspergillus.man.ac.uk/ 'Aspergillus is a group of moulds, which is found everywhere world-wide, especially in the autumn and winter in the Northern hemisphere. Moulds are also called filamentous fungi. Only a few of these moulds can cause illness in humans and animals. Most people are naturally immune and do not develop disease caused by Aspergillus. However, when disease does occur, it takes several forms. The types of diseases caused by Aspergillus are varied, ranging from an allergy-type illness to life-threatening generalised infections. Diseases caused by Aspergillus are called aspergillosis. The severity of aspergillosis is determined by various factors but one of the most important is the state of the immune system of the person.' For more information google Aspergillus or aspergillosis

Posted By Ken Taylor It's generally been an issue about spores and asthmatic conditions as well as damp atmospheres whenever I have been involved with mould.