Lead is decreasing, but be careful.

Autor: Wells, Cindy
Předmět:
Zdroj: Countryside & Small Stock Journal; May/Jun96, Vol. 80 Issue 3, p64, 2/5p
Abstrakt: Focuses on the decrease in levels of lead in the environment since the phase out of leaded gasoline in the early 1980s. Problem caused by peeling lead-based paint; Avoiding remaining sources of lead; Soil contamination.
Databáze: Supplemental Index