Sudarshan Venkatayogi, Narsimha Adimalla, Das S V G
Department of Applied Geochemistry, University College of Science, Osmania University, Hyderabad 500007, India.
School of Environmental Science and Engineering, Chang'an University, No. 126 Yanta Road, Xi'an 710054, China.
Data Brief. 2018 Mar 8;18:87-95. doi: 10.1016/j.dib.2018.02.084. eCollection 2018 Jun.
Excess fluoride in drinking water has been one of the leading problem faced by the arid and semi-arid regions of the world. Significantly in India the people suffer from fluorosis comparing to other toxic elements like Arsenic etc., in drinking water. Approximately, in India the excessive fluoride in groundwater is noticed in 177 districts covering 21 states, affecting 66 million people, including 6 million children and Moreover, the latest estimation gives nearly 200 million people, from among 25 nations the world over, are affected by the deadly disease of fluorosis [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14]. The fluoride of the groundwater varies from 0.4 to 5.8 mg/L with a mean of 1.98 mg/L (Table 1 & 2), which indicates that the concentration of fluoride is not uniform in the study area. In general intake of small quantities of fluoride in the permissible limit of 0.5 to 1 mg/L is known to be beneficial for human health in production and maintenance of proper health. However, in India safe limit of fluoride in potable water is considered to be between 0.6 to 1.2 mg/L, less than 0.6 mg/L can cause dental caries, while higher than 1.2 mg/L leads to fluorosis [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16].
饮用水中氟化物超标一直是世界干旱和半干旱地区面临的主要问题之一。在印度，与饮用水中的其他有毒元素如砷等相比，人们深受氟中毒之苦。在印度，大约有177个县（覆盖21个邦）的地下水中氟化物超标，影响了6600万人，其中包括600万儿童。此外，最新估计显示，全球25个国家中有近2亿人受到氟中毒这一致命疾病的影响[1],[2],[3],[4],[5],[6],[7],[8],[9],[10],[11],[12],[13],[14]。地下水中氟化物含量在0.4至5.8毫克/升之间，平均为1.98毫克/升（表1和表2），这表明研究区域内氟化物浓度并不均匀。一般来说，摄入0.5至1毫克/升允许限度内的少量氟化物，已知对人体健康在促进和维持正常健康方面有益。然而，在印度，饮用水中氟化物的安全限度被认为在0.6至1.2毫克/升之间，低于0.6毫克/升会导致龋齿，而高于1.2毫克/升会导致氟中毒[1],[2],[3],[4],[5],[6],[7],[8],[9],[10],[11],[12],[13],[14],[15],[16]。
