Some results of mobile measurements of the influence of the town Sofia on air pollution in the surrounding area
During the Complex Air Pollution Experiment carried out in two monthly periods (20.XI.-20.XII.1981 and 15.VI.-15.VII.1982), hereinafter conventionally named “winter” and “summer” periods, 62 and 104 air samples respectively were taken by laboratory car at different distances on the lee side of Sofia — the largest Bulgarian city and industrial center. These measurements aimed at investigating the influence that this large town has on the air pollution of the surrounding area. Wind data are a decisive factor for this type of investigations, therefore data processing started with a test in order to ascertain that a given sample had been taken on the lee side of the town. First of all, the azimuth and the distances of the observational points have been precisely defined by maps.
KeywordsWind Direction City Centre Summer Period Metallurgical Plant Domestic Heating
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