Ozone pollution hits sperm count: study
Smog is not just bad for the lungs, it can hit a man's sperm count too, a study says.
Researchers with the University of Southern California in the US looked at the sperm counts of 48 men who donated at least 10 times in two years to a Los Angeles sperm bank.
Using air pollution measurements from the area where each man lived, the team estimated how much pollutant they were exposed to in the days leading up to each donation.
The team, from the University's Keck School of Medicine, found that ozone formed in smoggy air was the only pollutant that appeared to be linked to decreased sperm production.
Carbon monoxide seemed to have no effect.
Ozone cannot reach the testicles directly but the researchers said it may cause an inflammatory response or produce toxic substances in the blood that damage sperm.
The findings were published in the New Scientist magazine.
- Reuters
Smog is not just bad for the lungs, it can hit a man's sperm count too, a study says.
Researchers with the University of Southern California in the US looked at the sperm counts of 48 men who donated at least 10 times in two years to a Los Angeles sperm bank.
Using air pollution measurements from the area where each man lived, the team estimated how much pollutant they were exposed to in the days leading up to each donation.
The team, from the University's Keck School of Medicine, found that ozone formed in smoggy air was the only pollutant that appeared to be linked to decreased sperm production.
Carbon monoxide seemed to have no effect.
Ozone cannot reach the testicles directly but the researchers said it may cause an inflammatory response or produce toxic substances in the blood that damage sperm.
The findings were published in the New Scientist magazine.
- Reuters
Vastaukset 1
Vanhimmat
otsoniaukko on suurentumassa.
ja mikä pakko spermaa on säilyttää ulkona ?