Arsenic has been used since 3000 BC. In the United Kingdom, for example, it was used to extract iron from iron ore. It has long been known that arsenic is acutely toxic. Anyone who drinks arsenic in water at 60 parts per million (ppm) will soon die.
Fresh water use is partly based on several socio-economic development factors, including population, physiography, and climatic characteristics. This graphic illustrates the world’s top 20 water consumers per capita, in cubic metres, which signify which countries are more effective in using the water.