when did lead start being used in paint
Lead paint Lead white was being produced during the 4th century BC; the process is described by Pliny the Elder, Vitruvius and the ancient Greek author Theophrastus.
Lead-based paint in the United States Congress banned the use of lead-based paint in 1971,[3] and the Consumer Product Safety Commission followed with implementing regulations, effective in 1978.[4] Additional regulations regarding lead abatement, testing and related issues have been issued by the Environmental Protection Agency (EPA).
Pencil Although lead has not been used for writing since antiquity, lead poisoning from pencils was not uncommon. Until the middle of the 20th century the paint used for the outer coating could contain high concentrations of lead, and this could be ingested when the pencil was sucked or chewed.[42]
En plein air Artists have long painted outdoors, but in the mid-19th century, working in natural light became particularly important to the Barbizon school, Hudson River School, and Impressionists.
Pencil Although lead has not been used for writing since antiquity, lead poisoning from pencils was not uncommon. Until the middle of the 20th century the paint used for the outer coating could contain high concentrations of lead, and this could be ingested when the pencil was sucked or chewed.[60]
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