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Health and safety hazards

Pastels are a dry medium and produce a great deal of dust, which can cause respiratory irritation. More seriously, pastels might use the same pigments as artists' paints, many of which are toxic. For example, exposure to cadmium pigments, which are common and popular bright yellows, oranges, and reds, can lead to cadmium poisoning. Pastel artists, who use the pigments without a strong painting binder, are especially susceptible to such poisoning. For this reason, many modern pastels are made using substitutions for cadmium, chromium, and other toxic pigments, while retaining the traditional pigment names. Also to note that all brands that have the AP Label by ASTM International are not considered toxic, and they might use extremely insoluble varieties of cadmium or cobalt pigments that will not be readily absorbed by the human body. Although less toxic when swallowed, they should still be treated with care.