Abstract

Fluoride (F⁻) in the environment has appealed the contemplation of numerous researchers across the globe; which is an essential element for human health within certain limits and toxic beyond that. Therefore, knowledge of variation of F⁻ is thus a necessity for taking preventative measures. In view of this, 60 samples were collected to study health risk assessment from Ambadongar area representing geological diversities. The F⁻ concentration in the study area varies from 0.43 to 4.25 mg/L with an average of 1.5 mg/L. From which 41% of wells show F⁻ concentration greater than the recommended limit (GRL) of 1.25 to 2.25 mg/L from Basalt, Limestone and alkaline rocks and 43% excess than recommended limit (ERL) of more than 2.25 mg/L from Nephelinite lithology. Out of these, 22% wells are from Sandstone, 7% from Basalt, 26% from limestone and 4% from Carbonatite breccia show F concentration above GRL, whereas 14% from Basalt, 29% from Limestone and 14% from Carbonatite Breccia display that F concentration to be exceeding ERL. Most of the wells show values of total hazard quotients exceeding unity which suggests the possibility of health risk hazard. The hydrogeochemical analysis supports the prevalence of F⁻ and its effect in form of dental fluorosis in the study area. It is envisioned that in addition to the people already affected large fraction of population is at potential risk.

摘要

氟（F ^- ）环境中呼吁世界各地的众多研究者的思考; 在一定范围内是人体健康必不可少的元素，超出此范围则有毒。因此，F变化的知识^-从而为采取预防措施是必要的。有鉴于此，从Ambadongar地区收集了60个样本，以研究代表地质多样性的健康风险评估。在F ^-浓度在研究区域变化从0.43到4.25毫克/升，平均为1.5毫克/升。从该井的41％，显示˚F ^-浓度大于玄武岩，石灰岩和碱性岩石的建议限值（GRL）1.25至2.25 mg / L，并且比霞石岩性建议的建议限值（ERL）超出建议限值（ERL）超过2.25 mg / L 43％。其中22％的井来自砂岩，7％的玄武岩，26％的石灰石和4％的碳酸盐岩角砾岩表明F浓度高于GRL，而14％的玄武岩，29％的石灰岩和14％的碳酸盐岩角砾岩表明： F浓度超过ERL。大多数井的总危害商值均超过1，这表明存在健康风险隐患。水文地球化学分析支持F的患病率^-及其在研究区域以氟斑牙形式出现的效果。可以预见，除了已经受到影响的人之外，很大一部分人口还处于潜在风险中。