Fig. (10) The photomicrographs (20X) of histology of various organs. (A) Skin Histology after dermal exposure (Aa) Control skin, (Ab) NDF exposed skin at 2g/kg dose; (B) Lung Histology after intratracheal exposure (Ba) Control lung, (Bb) NDF exposed lung at 100mg/kg dose; (C) Lung Histology after intranasal exposure (Ca) Control lung, (Cb) NDF exposed lung at 100 mg/kg dose; (D) Liver Histology after intra-peritoneal exposure (Da) Control liver, (Db) NDF exposed liver at 570 mg/kg dose; (E) Spleen Histology after intra-peritoneal exposure (Ea) Control spleen, (Eb) NDF exposed Spleen at 567 mg/kg dose; (F) Stomach Histology after oral exposure (Fa) Control Stomach, (Fb) NDF exposed Stomach (mucous secretion is clearly visible in exposed stomach) at 5 g/kg dose; (G) Intestine Histology after oral exposure (Ga) Control Intestine, (Gb) NDF exposed Intestine.