I. Bottled water consumption has increased significantly but many question whether bottled water is safer than filtered tap water and whether the environmental impact is worth the convenience.
II. While some bottled water comes from pristine sources, over 25% in the US comes from municipal water supplies that is treated and sold at a high price without always stating the source on the label.
III. Studies have found contaminants like carcinogens and phthalates in some bottled water brands, with phthalates possibly entering during processing or being present in the original water source, though most bottled water is still considered safe.