大连地区氟化物分布及其影响因素分析

通过离子色谱法，对大连地区重要水库及主要河流共22个断面进行氟化物的测定。结果显示，大连地区水质较好，氟化物浓度低，平均值为0.23 mg/L，检测断面中只有同益大桥断面超标，其他均符合标准，可作为水源区放心饮用。此外，对3个不同类型的水库，考察10个月期间氟化物与蓄水量的关系，得出氟化物浓度与蓄水含量呈负相关，并且蓄水量越大的水库氟化物浓度波动越小。

Research of fluoride distribution in Dalian and influencing factors

The fluoride content of the important reservoirs and main rivers in Dalian(22 sections in total) were measured through ion chromatography method.The results showed that the water quality was well in Dalian and the fluoride concentration was at a low level with an average concentration of 0.23 mg/L.Except exceed fluoride of Tongyi Bridge,all other test sections were below the standard requirements,which can be used as drinking-water sources.Besides,the relationship between fluoride and water storage in ten months for three different types of reservoirs were studied.Results indicated that the fluoride concentration showed negative correlation with water storage.Meanwhile,the larger water storage of the reservoirs offered,the smaller fluoride volatilities were detected.