16 Wednesday Jun 2021 Original size at 1600 × 1200 ≈ Leave a comment -Water can contain pesticides, heavy metals industrial pollutants and lead. Up to 20% of human lead exposure comes from drinking water. Like this:Like Loading... Share this:Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to email a link to a friend (Opens in new window)Like this:Like Loading...