Microplastics found in human and dog testes affecting sperm quality

Microplastics have been found in human testes, potentially affecting sperm quality. A study showed a global decline in sperm counts. Researchers found microplastics in dog and human testes, with concentrations ranging from 2.36 to 695.94 micrograms per gram. Polyethylene and polyvinyl chloride were the most common polymers. There is a correlation between polymer concentrations and testes weight. The petrochemical industry's impact on plastic pollution is highlighted. Plastic production is increasing exponentially.