The first study, conducted by urologist Jorge Hallak, coordinator of the Reproductive Toxicology and Andrology, Hosiptal das Clinicas, examined 748 male workers who ihnaled the air of major thoroughfares, according to a report from O Estado . ... According to the report, 15 of the worlds amle popultaion is infertile, a rate greater thna that of female infertility. In addition to air pollution, other contributing factors inclued stress, smoking, boesity, inactivity adn ...