This blog may help people explore some of the 'hidden' issues involved in certain media treatments of environmental and scientific issues. Using personal digital images, it's also intended to emphasise seasonal (and other) changes in natural history of the Swansea (South Wales) area. The material should help participants in field-based modules and people generally interested in the natural world. The views are wholly those of the author.
Wednesday, 5 October 2022
'Forever Chemicals' and Human Fertility
Yet another negative impact of the now ubiquitous 'forever chemicals' on our human species! A Copenhagen University Hospital (Denmark) study has linked a mother's exposure, in early pregnancy, to these Per and Polyfluoroalkyl substances (PFASs) to impaired testicular function in her male offspring (https://www.theguardian.com/society/2022/oct/05/pfas-sperm-count-mobility-testicle-development). PFASs are the extensive 'family' of synthetic chemicals, manufactures use to make items water, stain and stick-resistant. PFASs are called 'forever chemicals' as they don't break down in the environment. This Danish study linked a mother's exposure to PFASs in early pregancy, to reduced sperm count and lowered sperm motility in her sons. These changes would, of course, have an impact on that child's fertility. Many, many drugs (I used to research the area) have lasting impacts, when individuals are exposured to them in early life. It's also highly likely that environmental PFASs would, impair the fertilities of other animals. These human-manufactured chemicals could, consequently, also reduce productivity in domestic and wild species of other animals.
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