Exposure of the general population to lead in the environment is mainly caused by motor traffic exhaust and by industrial pollution. The aim of the study in Greece was to assess lead exposure in children living in point source impacted areas (Lavrion and Aspropyrgos-Eleusis) using the biological monitoring parameter "blood lead concentration".In addition, workers of a lead smelter, a battery plant and an oil refinery were investigated in these areas at the same time.Five hundred and thirty-four children and 105 workers took part in this investigation.The highest blood lead levels (mean: 24.16 µg/100ml; range: 10.40-60.49 µg/100 ml) were found in children living in a 500m-area around the lead smelter at Lavrion. Blood lead decreases corresponded to the increasing distance from the emitter. Nevertheless the values of children living in a 1500 m distance to the smelter are significantly higher than those of children living next to other kinds of industrial lead sources.The mean values of the children living in the two industrial towns were manifold higher than those of the control group.The blood lead levels of the investigated workers did not exceed the German BAT-value (Biologischer Arbeitsstoff-Toleranzwert) of 70 µg/100ml.
Since November, 1999 environmental medical advice is offered to interested citizens in the Aachen district at the District Aachen Public Health Office in cooperation with the outpatient unit of environmental medicine (UEM) of the Institute of Hygiene and Environmental Medicine of the University Hospital at Aachen, Germany. Advisory cases are documented in a data bank of Microsoft(R) Access 97. Until now, all advisory cases between November, 1999 and March, 2001 have been descriptively analysed. In this period, 34 personal and two telephonic advices were performed. The frequency of advisory activities is in the lower rang of published experiences in environmental medicine. Age distribution, more frequent advice utilization by women than by men and predominance of unspecific health disorders are comparable with published environmental medical experiences. However, in respect of suspected exposures, unspecific indoor-related environmental factors are predominant. In the past this was true for wood preservatives. Judgement about possible relationships between suspected environmental factors and health disorders or diseases was positive among 11.8 % of the persons seeking advice. This percentage is higher than published experiences which mostly show values below 10 %. It must be considered that this judgement depends primarily on the physician. Other reasons may be the too small number of advice seeking persons and selective influences. Furthermore, a definite judgement can be made only after environmental medical diagnostics (biological monitoring, local inspection, ambient monitoring) and differential diagnostics. Conspicuously, 76.5 % of the advisory cases had no contact to environmental medicine prior to the environmental medical advice at the Aachen District Public Health Office. This points to an information deficit about possibilities to clarify questions concerning environmental medicine in the population. In this context a regional guide on environmental medicine may be helpful. The environmental medical advice for citizens is an excellent example of a successful cooperation between a public health office and an university, which have different special experience in environmental hygiene and environmental medicine. This cooperation brings selectively citizens seeking for advice in environment-related health risks and disorders to practitioners specialised in environmental medicine.
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