Prevalence and implications of microplastic contaminants in general human seminal fluid: A Raman spectroscopic study

微塑料 精液 精子 精液质量 精子活力 污染 人口 生物 男科 化学 环境化学 医学 环境卫生 生态学
作者
Ning Li,Huijun Yang,Yunling Dong,Bin Wei,Liyang Liang,Yun Xiang,Jiaqi Tian,Yong‐Fei Zheng,Shuyin Duan,Lin Zhang
出处
期刊:Science of The Total Environment [Elsevier BV]
卷期号:937: 173522-173522 被引量:33
标识
DOI:10.1016/j.scitotenv.2024.173522
摘要

Microplastics are ubiquitous environmental contaminants that have been detected in human semen from polluted areas, yet their prevalence and effects in the general population remain largely unexplored. To examine microplastic presence, abundance, polymer types, and associations with semen quality parameters in individuals without occupational exposures, this study was conducted by collecting semen samples from 40 participants undergoing premarital health assessments in Jinan, China. Raman microspectroscopy was employed to identify, quantify, and categorize microplastic polymers, sperm motility was assessed via computer-assisted analysis, and morphology was evaluated through Diff-Quik staining. Correlations between demographics, semen parameters, and microplastic content were examined by statistical analysis. We found that microplastics were detected in all semen samples, with 2 particles per sample (ranging from 0.72 to 7.02 μm). Eight distinct polymers were identified, with polystyrene (31 %) being most prevalent. Semen exposed to polystyrene demonstrated higher sperm progressive motility as compared to polyvinyl chloride exposure group (43.52 ± 14.21 % vs 19.04 ± 13.46 %). Sperm morphological abnormalities were observed but not significantly associated with specific plastic types. In conclusion, this study reveals microplastic contamination in semen from individuals without occupational exposure, with PS, PE, and PVC being the most prevalent and exhibiting differential correlations with sperm progressive motility, and highlight the need for further research into the potential reproductive impacts of microplastic exposure.
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