The state of the immune system was studied in the women working at the OAO Uralkalii (Berezniki) and OAO Sil'vinit (Solikamsk), where they were permanently exposed to salts and halite waste, and their children born after at least three years of such exposure. The control group consisted of women who had no occupational contact with salts and halite wastes and of their children. No significant differences between the differential leukocyte counts and immunograms of the women working at the OAO Uralkalii and OAO Sil'vinit and their children were found. The main parameters of the immune system of women and their children both in the first and second groups were within the norm.