Biomonitoring of polycyclic aromatic hydrocarbons from coke oven emissions and reproductive toxicity in nonsmoking workers

• Published in: Journal of hazardous materials Vol. 244-245; pp. 436 - 443
• Main Authors: Jeng, Hueiwang Anna, Pan, Chih-Hong, Lin, Wen-Yi, Wu, Ming-Tsang, Taylor, Steven, Chang-Chien, Guo-Ping, Zhou, Guodong, Diawara, Norou
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 15.01.2013
• Subjects: 1-Hydroxypyrene; Adult; Air Pollutants, Occupational - analysis; Air Pollutants, Occupational - toxicity; Coke; DNA - drug effects; DNA - metabolism; DNA Adducts - analysis; DNA Fragmentation; Environmental Monitoring; Humans; Male; Middle Aged; Morphology; Occupational Exposure - adverse effects; Occupational Exposure - analysis; Polycyclic aromatic hydrocarbons; Polycyclic Aromatic Hydrocarbons - analysis; Polycyclic Aromatic Hydrocarbons - toxicity; Pyrenes - urine; Semen Analysis; Semen quality; Spermatozoa - drug effects; Steel; Vitality; Semen quality; Polycyclic aromatic hydrocarbons; Vitality; Morphology; 1-Hydroxypyrene; DNA fragmentation
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2012.11.008

► Coke oven workers were exposed to PAHs despite the use of personal protection equipment. ► Sperm quality was independent of sperm DNA integrity. ► Exposure to PAHs was linked to increased levels of bulky DNA adducts in sperm. ► Research results could be useful to develop reproductive disease prevention strategy. The objective of the cross-sectional study was to assess whether exposure to polycyclic aromatic hydrocarbons (PAHs) from coke oven emissions contributed to alteration of semen quality and sperm DNA integrity in nonsmoking workers. Nonsmoking coke oven workers from a steel plant in Taiwan served as the exposure groups (topside-oven workers for the high exposure group and side-oven workers for the low exposure group), and administrators and security personnel in the plant served as the control. An exposure assessment was conducted to determine both particulate and gaseous phase of PAH levels and urinary 1-hydroxypyrene (1-OHP) levels. Semen quality was analyzed according to WHO guidelines. DNA fragmentation and bulky DNA adducts were measured to assess sperm DNA integrity. There was no significant difference in sperm concentrations, vitality, and DNA fragmentation between the exposed group and the control. The high exposure group experienced significantly lower percentages of normal morphology as compared with the control (p=0.0001). Bulky DNA adducts were detected in the exposed group that were significant higher than the control (p=0.04). Exposure to PAHs from coke-oven emissions could contribute to increased levels of bulky DNA adducts in sperm.