Air velocities, air temperatures and dust and fluoride concentrations were measured in a burning shop of a pellet plant. The results show that there is a clear relationship between the air velocities, air temperatures and airpollution concentrations. The air flow pattern consists of an air current which rises above the burning machine as a result of convection and escapes through roof grates. Air is supplied through facade grates. The transport of air and polluting substances, especially in the cross direction of the hallindicates the influence of the wind.

Notes one of the principal ways in which members of the public receive natural irradiation is by breathing the decay products of radon 222. Reviews data on radiation exposure and the incidence of cancer for uranium miners. Discusses uncertainties and inadequacies in the data. Gives estimates for the incidence of lung cancer in the general public, caused by radon exposure.

Defines the method to be used for the air permeability testing of windows to be fitted in exterior walls and supplied in the form of completely assembled and finished units. Describes apparatus, test method and expression of results.

Reports wind tunnel measurements of the wind-induced internal pressures of models of low-rise buildings of different geometry and internal volume. Three different uniform porosities (0.0 0.5 and 3.0% of the total surface area) have been examined in combination with openings in a wall ranging from 0 to 100% of that wall's area. Two terrain roughnesses were used corresponding to open country and suburban regions.< Finds that internal pressures are variable but generally lower than local external pressures.

Indoor concentrations of pollutants often equal or exceed outdoor concentrations, and since most people spend 90% of their time indoors this constitutes a health threat much greater than that posed by outdoor pollution, which has received most of the attention in the U.S.A. The problem has been made worse by energy conservation measures which reduce ventilation. Thisarticle reviews recent research findings and their implications for pollution control programmes, and considers the further research that is needed.

Encore-Canada is a Fortran IV computer program which performs a dynamic simulation of energy use on an hourly basis using weather data. The program includes the calculation of air infiltration and solar effects. This report describes the program structure, data preparation, output and procedures for running the program. Gives examples of program applied to a house giving floorplan of the house, input data and program output.

Reports measurements of air leakage in several supermarkets and an enclosed shopping mall, all constructed between 1954 and 1979. All tests were conducted by using a large fan to depressurize the building. Gives graphs of leakage rates. Finds supermarkets are two to four times leakier than schools or high-rise office buildings.

Reviews the topic of indoor air quality as it relates to energy efficient homes. Discusses air pollution from combustion, airborne particles, formaldehyde and radon. Concludes that indoor air quality in existing homes and those currently being constructed, can be managed so as to avoid adverse effects on the occupants.

Discusses use of an instrumented energy audit, as opposed to a walk-through audit. Describes use of the audit to pinpoint infiltration sites. Method used is to depressurize a building and use thermography to locate air leaks. Briefly describes equipment and gives example of an instrumented audit of a residential building. States advantage of instrumented audit is that it gives a quantitative energy analysis as opposed to a qualitative one.