How does plastic pollution in water systems affect water quality?

Plastic pollution in water systems significantly impacts water quality by introducing toxic substances into the ecosystem. Plastics can break down into smaller particles known as microplastics, which can adsorb and carry harmful chemicals and pollutants. These toxic substances can include heavy metals, persistent organic pollutants (POPs), and other hazardous materials, leading to adverse effects on aquatic life and potentially entering the food chain.

When wildlife ingests plastics, these toxins can bioaccumulate and biomagnify, resulting in harmful effects not only on individual organisms but also on entire ecosystems and human health. Therefore, the introduction of plastics into water systems poses a serious threat to both the environment and public health, highlighting the importance of addressing plastic pollution.

The other options do not accurately reflect the consequences of plastic pollution. They suggest positive effects that are not supported by scientific evidence regarding the impacts of plastics on water systems.