Kierdorf U, Kierdorf H
Institute of General and Systematic Zoology, Justus-Liebig-University of Giessen, Germany.
Comp Biochem Physiol C Toxicol Pharmacol. 2000 May;126(1):61-8. doi: 10.1016/s0742-8413(00)00096-7.
In order to study temporal and spatial variation of environmental fluoride levels, we analyzed the mandibular bone fluoride content of 157 roe deer (age range: 1-11 years) from two industrialized regions (Ruhr area: n = 76, sampling period 1955-1998; area W of Cologne: n = 81, sampling period 1983 1998) in the federal state of North Rhine-Westphalia, Germany. Bone fluoride values (dry weight basis) ranged between 150 mg F/kg (2 year-old specimen taken in 1997) and 5724 mg F/kg (10 year-old specimen taken in 1957). In both study areas, a pronounced decline in mandibular bone fluoride concentrations occurred over the respective sampling periods. In consequence, bone fluoride content of animals (both study areas pooled) taken during the period 1990-1998 was significantly (P < 0.00001) lower than that of roe deer from the period 1955 1989, while the two animal groups did not significantly differ in age. These findings are regarded as indicative of a considerable reduction of fluoride deposition into the animals' habitats, due to effective emission control measures. Bone fluoride values for the period 1990-1998 in the roe deer from the Ruhr area significantly (P < 0.005) exceeded those of the individuals from the study area W of Cologne, while the difference in age between the two groups was not significant. In both study areas, a significant (P < 0.00001) positive correlation between age and mandibular bone fluoride content (Ruhr area: rs = 0.601; area W of Cologne: rs = 0.725) was found for animals taken during this period. The present study underscores the suitability of analyzing skeletal fluoride concentrations in wild roe deer in order to monitor the magnitude of environmental contamination by fluoride and thereby to assess the efficiency of measures taken to reduce fluoride emissions from industrial sources.
为研究环境氟含量的时空变化，我们分析了德国北莱茵 - 威斯特法伦州两个工业化地区（鲁尔区：n = 76，采样期1955 - 1998年；科隆以西地区：n = 81，采样期1983 - 1998年）157只狍（年龄范围：1 - 11岁）的下颌骨氟含量。骨氟值（以干重计）在150毫克氟/千克（1997年采集的2岁标本）至5724毫克氟/千克（1957年采集的10岁标本）之间。在两个研究区域，各自采样期内下颌骨氟浓度均显著下降。因此，1990 - 1998年期间采集的动物（两个研究区域合并）的骨氟含量显著低于1955 - 1989年期间的狍（P < 0.00001），而两组动物的年龄无显著差异。这些发现被认为表明由于有效的排放控制措施，动物栖息地的氟沉积量大幅减少。1990 - 1998年期间鲁尔区狍的骨氟值显著高于科隆以西地区的个体（P < 0.005），而两组的年龄差异不显著。在两个研究区域，此期间采集的动物年龄与下颌骨氟含量之间均存在显著的正相关（鲁尔区：rs = 0.601；科隆以西地区：rs = 0.725，P < 0.00001）。本研究强调了分析野生狍骨骼氟浓度对于监测氟对环境污染程度以及评估减少工业源氟排放措施效率的适用性。
