Air pollution and decreased semen quality: A comparative study of Chongqing urban and rural areas

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• 作者：Niya Zhou^a ; ¹ ; Zhihong Cui^a ; ¹ ; Sanming Yang^b ; Xue Han^a ; Gangcai Chen^b ; Ziyuan Zhou^a ; ^f ; Chongzhi Zhai^b ; Mingfu Ma^c ; ^d ; Lianbing Li^c ; ^d ; Min Cai^d ; Yafei Li^e ; Lin Ao^a ; Weiqun Shu^f ; Jinyi Liu^a ; ^{jinyiliutmmu@163.com" class="auth_mail} ; Jia Cao^a ; ^{caojia1962@126.com" class="auth_mail}
• 关键词：PM10 ; SO2 ; NO2 ; Regional variation ; Semen quality ; Urban area ; Rural area
• 刊名：Environmental Pollution
• 出版年：April, 2014
• 年：2014
• 卷：187
• 期：Complete
• 页码：145-152
• 全文大小：848 K

文摘

To investigate the association and effects of air pollution level on male semen quality in urban and rural areas, this study examines the outdoor concentrations of particulate matter (PM₁₀), sulfur dioxide (SO₂), nitrous dioxide (NO₂) and semen quality outcomes for 1346 volunteers in both urban and rural areas in Chongqing, China. We found the urban area has a higher pollution level than the rural area, contrasted with better semen quality in the rural residents, especially for sperm morphology and computer assistant semen analysis (CASA) motility parameters. A multivariate linear regression analysis demonstrates that concentrations of PM₁₀, SO₂, and NO₂ significantly and negatively are associated with normal sperm morphology percentage (P聽<聽0.001) and sperm kinetic parameters. In conclusion, exposure to higher concentrations of PM₁₀, SO₂, and NO₂ in urban ambient air may account for worse semen quality in urban males.