铝（Al）化合物用于许多应用，包括作为水处理的混凝剂。Al也是一种公认的神经毒素。流行病学研究表明，铝与不良神经影响之间存在潜在联系，因此，是否需要制定铝的饮用水标准引发了争议。本文讨论了饮用水中铝的监管价值，以及监管机构对铝监管的不同意见。

Aluminum (Al) compounds are used in many applications, including as a coagulant for water treatment. Al is also a well-established neurotoxin. Epidemiological studies indicating a potential link between Al and adverse neurological effects has generated controversy as to whether a drinking water standard for Al is needed. This article discusses regulatory values for Al in drinking water and the differences in opinion of regulatory agencies regarding the regulation of Al.