In the case of increasing environmental pollution, human fertility continues to decline, including emissions from cars can make male fertility decline. A new study suggests that prolonged exposure to vehicle emissions will cause low sperm quality, thus affecting male fertility. This is an issue of particular concern to people, because this is related to the human environment, related to human reproduction, major issues related to social development.
Italy medical researchers at the University of Naples, on 85 men working in the highway toll station
Research that showed their sperm counts and other young men in the same area there is no difference, but sperm weakened, thus a decrease in their reproductive capacity. In this study, the highway toll station staff had received comprehensive medical examination, 83% of men married married 71 of 7 per cent of them were married not procreate.
Male if exposure to vehicle emissions environment 6 hours a day, their levels of male hormones in the body does not change, but will decline in sperm mobility, thus affecting the ability of fertilization. About one-third of female infertility is caused by abnormal man\'s sperm count and quality. Men\'s sperm counts, if less than 20 million sperm per millilitre of semen, you poor fertility. Sperm weakened form exceptions also affects male fertility.
Researchers believe that this part of the male in the high concentration of nitrogen oxide, sulfur oxide, carbon monoxide and lead, motor vehicle emissions in the environment, and nitrogen oxide, lead, most likely to damage sperm quality. Researchers call for more in-depth study should be made on this subject, at the same time, health workers also should pay attention to the negative effects of environmental pollution on human health, pay attention to people\'s health, concerns human reproductive capacity.
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