Highlighting the need for public awareness, a medical encyclopedia states that, at present, 1 in 20 preschoolers in the United States has high levels of lead in his or her blood.
Üks meditsiinientsüklopeedia rõhutab vajadust rahvast teavitada, mainides, et praegu on USA - s iga 20. koolieeliku veres liiga suures koguses pliid.