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The Air Infiltration and Ventilation Centre's world wide survey of current research into air infiltration and related topics, provides organisations in participating countries with regularly updated information about ongoing research in this field. In particular, the major objectives of the survey are to encourage the international cross-fertilization of research ideas and to promote co-operation between research organisations in different countries. The results of the first survey were published in October 1980, and contained an analysis of 65 research summaries received from researchers in 14 countries. The second edition followed in December 1981, with the number of new entries almost doubling to 126. In November 1983 the third survey was published, this edition extended its scope to cover research into indoor air quality. For this survey the response again increased, with 187 summaries being received from organisations in 22 countries. In addition to the increased scope of the survey, researchers were also asked to provide an indication for project size in terms of allocation of staff time.
This, the fourth survey, is based on summaries received from researchers following the distribution of a standardized survey form (Appendix 1) to organisations thought likely to be involved in air infiltration/ air quality research. Essentially similar to the form used for the 1983 survey, additional space was provided in order that specific information regarding the type of building/building component under examination could be obtained. Once again there has been an increase in the number of projects reported, with a total of 219 summaries being received from organisations in 19 countries. The origin and distribution of survey replies is shown in Table 1.
The analysis of the survey is presented in two sections. In the first, the results are analysed in terms of the various headings on the survey form, i.e. specific objectives, project details, building or component type, parameters with which infiltration and indoor air quality are related and allocation of staff time. This information is presented in such a way that the reader may use the analysis to ascertain which research summaries lie within the bounds of any given subject area. In order to facilitate this type of analysis and enable easy access to the data, the research summaries are stored on a micro computer database which can be rapidly searched using the Air Infiltration and Ventilation Centre's free text retrieval system. The task of analysing the research replies was also eased by the allocation of a set of keywords to each research summary. These keywords are presented, both in alphabetical order and by subject classification, in Appendix 2.
All the research summaries are presented in Section Two. They are divided into two sub sections i.e. participating countries and non-participating countries. Each project is identified by a reference number comprised of a country identification code (Table 1) followed by a number indicating the order in which it appears under the relevant country heading (countries listed in alphabetical order within each sub section). A list of principal researchers and organisation addresses is contained in Appendix 3.
The preparation of this report was only possible as a result of the co-operation of researchers in forwarding details of their studies. The assistance of all who contributed to this survey is acknowledged with gratitude.