2024 No Is direct-drinking water safe for children? An analysis of direct-drinking water quality and its risk factors in Shanghai elementary and middle schools https://www.sciencedirect.com/science/article/abs/pii/S1438463920305964?via%3Dihub Hu, Fen Asia Observational Elementary (K-5) Middle/Jr High (6-8) Temperature Water quality Direct drinking water Elementary and middle school children Water safety Health Water samples from 183 Shanghai schools showed CFU, COD, and turbidity levels varied by temperature, location, and technology. Warm water (25-60 °C) raised CFU risk. Findings support regulations to improve safe school drinking water access. 2021