Water
Humans use water every day. We use it for bathing, washing/cleaning, swimming, but most importantly, drinking. Water is one of the essential substances for life. But did you know that water is never pure? Water always has some dissolved minerals (including ions) and microorganisms.15 This doesn't necessarily imply that water is unsafe however – some dissolved minerals are healthy. But others are not. Today, we will be focusing on one particular dissolved ion which is definitely not beneficial: lead. Today, we will be evaluating the merits of three commonly used filters for filtering out lead ions: the coffee filter, the Brita filter, and the pop bottle filter. We will also be recommending some other ways you can deal with lead in your water in the bonus section.