Keywords: فضای فضایی; DiamST; Diameter of seminiferous tubule; IntS; Interstitial space; L; Lumen of seminiferous tubule; Sc; Spermatocyte; Sg; Spermatogonia; St; Spermatids; Sz; Spermatozoa; Air pollution; Volcanism; Testicular damage; Apoptosis; Histomorphometry;