Biomedical subjects
M Hangartner
Publications and source records attributed to M Hangartner.
Evaluation of annoyance caused by motor traffic.
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[A passive sampler for nitrogen dioxide].
Passive samplers run without electric power supply, are easy to handle and thus are suitable for exposure measurements in epidemiological studies, to evaluate indoor air quality, to control ambient concentrations etc. Passive sampler values agree with continuous measuring apparatus within 85 to 105% and the lower detection limit is 4 micrograms/m3 for a one week exposure or longer.
[Measurement and evaluation of environmental odors].
The odor problem in the vicinity of a sludge drying plant was solved by installation of a biofilter. The success of this measure was examined by olfactometric measurements such as dilution to threshold determination and scaling of hedonic tone. The odor emissions were evaluated by questioning of the population in the neighbourhood of the plant. The question of acceptability was answered by a simple empiric model based on the percentage of highly annoyed people in the afflicted areas.
[Irtitation by smell in the neighborhood of a garbage burning plant].
Dilution threshold values were measured using sensory methods for an evaluation of odorous emissions of an incineration plant. The dispersion of odours was estimated based on recording of the local wind. The level of public annoyance in the neighbouring residential areas will be assessed by special questionnaires.