Blackfoot disease was prevalent in a limited area on the southwest coast of Taiwan, where artesian well water containing arsenic (median = 0.78 ppm arsenic) had been used for many years. Previous studies of arsenic exposure in the blackfoot disease endemic area have been focused on malignant tumors. We, therefore, conducted this study to analyze mortality of all death causes in blackfoot diseas...

BACKGROUND The incidence of differentiated thyroid carcinoma (DTC) is low in people of African origin and higher in populations living on islands, but there is no well-established explanation for these differences. Cuba is a multiethnic nation with people of African and Spanish descent. Until now, no study on the risk factors of DTC has focused on the Cuban population. Our aim is to establish t...

Current Brazilian law regarding water fluoridation classification is dichotomous with respect to the risks of and benefits for oral diseases, and fluoride (F) concentrations less than 0.6 or above 0.8 mg F/L are considered outside the normal limits. Thus, the law does not consider that both caries and fluorosis are dependent on the dosage and duration of fluoride exposure because they are both ...

Tầng chứa nước hạn chế được xem như là tầng ngầm nằm phía dưới mực tự do. này tích tụ trong lớp cát, đá hoặc sỏi sạn có tính thấm lớn, thường giữa hai nhiều không đất sét, sét yếu. Vì áp suất lớn hơn khí quyển, nên khi tiến hành một lỗ xuống từ mặt đất, thể bị đẩy lên trên (artesian pressure) qua khoan đó. Có thấy rằng (sét, yếu) chịu lực đi (áp artesian). Hiện tượng địa chất tìm ở các khu vực ...

The influence of climate change and anthropogenic activities (e.g., water withdrawals) on groundwater basins has gained attention recently across the globe. However, understanding hydrological stores storage) in one largest deepest artesian basins, Great Artesian Basin (GAB) is limited due to poor distribution monitoring bores. In this study, Gravity Recovery Climate Experiment (GRACE) satellit...