Reading a couple of times, my best interpretation is that the degree sign ° got mangled into 0. So the phrases should be: "water temperatures of 15–35 °C best s

Reading a couple of times, my best interpretation is that the degree sign ° got mangled into 0. So the phrases should be: "water temperatures of 15–35 °C best satisfied physiological needs. Water temperatures above 35° or below 15 °C resulted in a reduction in water consumption". Reference: https://www.who.int/water_sanitation_health/dwq/nutrientschap12.pdf#page=8 https://www.who.int/water_sanitation_health/dwq/nutrientscha...