镀铬工人由于经常接触电镀槽所放出的铬酸雾,感觉刺鼻,灼热和憋气,鼻子不通气,流出水样鼻涕,打喷嚏,流眼泪,经过1至2个月后,这些感觉就消失了。以后逐渐出现鼻中隔粘膜轻度充血,在充血部位的中心区出现粘膜表面浅糜烂,糜烂部位逐渐被浸蚀,使鼻中隔变薄,软骨也逐渐消失,中心部位开始形成穿孔,并向四周扩展,穿孔的边缘光滑整齐。这种鼻中隔病变的发生,主要决定于接触铬酸雾的浓度。一般浓度越高,它的腐 Chromium workers feel irritating, burning and suffocating due to constant contact with chromic acid mist released from the plating tank. The nose is not ventilated, watery nose, sneezing, and tears are shed. After 1 to 2 months, these feelings disappear . Subsequent nasal septum mucosal mild congestion occurred in the central hyperemia area mucosal surface superficial erosion, erosion sites gradually being eroded, so that nasal septum thinning, cartilage also gradually disappear, the central part of the formation of perforation, and to the expansion of the circumference, perforation The edges are smooth and tidy. The occurrence of this nasal septum lesions, mainly determined by exposure to chromic acid mist concentration. The higher the general concentration, it’s rot