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Table 1 The hazards class and concentration of each common chemical in surgical smoke before LEEP and during LEEP

From: Chemical composition of surgical smoke produced during the loop electrosurgical excision procedure when treating cervical intraepithelial neoplasia

Chemicals Hazards class (IARC) LMD (mg/m3) Air sample before LEEP (mg/m3) Smoke sample during LEEP (mg/m3)
Benzene 1 0.01 < 0.01 < 0.01
Toluene 3 0.01 < 0.01 < 0.01
Xylene 3 0.01 < 0.01 < 0.01
Ethylbenzene 2B 0.01 < 0.01 < 0.01
Styrene 2A 0.01 < 0.01 < 0.01
Butyl acetate 3 0.02 < 0.02 < 0.02
Hendecane NA 0.01 < 0.01 < 0.01
Acetone NA 0.02 < 0.02 < 0.02
Acrylonitrile 2B 0.02 < 0.02 < 0.02
1,2-dichloroethane 2B 0.02 < 0.02 < 0.02
Phenol 3 0.5 < 0.5 < 0.5
Chlorine 3 0.2 < 0.2 < 0.2
Cyanide 1 0.02 < 0.02 < 0.02
Hydrogen cyanide 1 0.1 < 0.1 < 0.1
Carbon monoxide NA 0.1 < 0.1 < 0.1
  1. LEEP, loop electrosurgical excisional procedure; LMD, lowest mass of detection; IARC, International Agency for Research on Cancer, 1, carcinogenic to humans; 2A, probably carcinogenic to humans; 2B, possibly carcinogenic to humans, less than sufficient evidence; 3, not classifiable as to its carcinogenicity to humans; NA, not available in IARC