Microplastics in Drinking Water: The Hidden Health Risks & Why We Need Industry Action

By Finlay Gilkinson – 12/03/2025

In recent years, the prevalence of microplastics in our environment has surged, infiltrating not just oceans and soil but also the very water we drink. These tiny plastic particles—measuring less than five millimetres in diameter—pose potential risks to human health, yet they remain largely unregulated. The water industry stands at a crucial crossroads: either continue to let microplastics contaminate our drinking supply or take proactive steps to safeguard public health.

Microplastics in drinking water, 2 people working on plans to remove microplastics from drinking water.

What Are Microplastics and How Do They Enter Drinking Water?

Microplastics originate from various sources, including the breakdown of larger plastic waste, synthetic fibres from clothing, and microbeads in personal care products. They enter the water supply through:

  • Wastewater runoff: Plastics from land-based pollution make their way into rivers and reservoirs.
    • Water treatment inefficiencies: Traditional filtration methods may not fully capture microplastic particles.
      • Plastic pipes and bottles: Degradation of plastic infrastructure can leach microparticles directly into the water we drink.
      • Potential Health Risks of Consuming Microplastics in drinking water

        The long-term effects of drinking microplastics remain under investigation, but early research points to concerning implications:

        • Toxic Chemical Exposure: Many plastics contain harmful additives like BPA, phthalates, and flame retardants, which have been linked to endocrine disruption, reproductive harm, and metabolic disorders.
          • Inflammation & Cellular Damage: Studies suggest that microplastics can accumulate in human tissues, potentially triggering inflammatory responses and cellular damage.
            • Microbial Contamination: Microplastics may act as carriers for harmful bacteria and pollutants, increasing the risk of infections and other health issues.
            • Why the Water Industry Must Act Now

              With growing evidence of microplastic contamination, the water industry has a responsibility to lead the charge in mitigating risks. This presents an opportunity not only to enhance public health but also to attract forward-thinking professionals dedicated to sustainable solutions. The industry needs engineers, researchers, and policy experts to drive innovation in microplastic filtration, infrastructure upgrades, and sustainable practices.

              Careers in the Fight Against Microplastics

              As the demand for cleaner water grows, so does the need for skilled professionals in fields such as:

              • Water Quality & Environmental Engineering: Developing advanced filtration systems to remove microplastics from drinking water.
                • Policy & Regulation: Shaping new guidelines to reduce plastic pollution at the source.
                  • Sustainable Water Management: Designing alternatives to plastic infrastructure and promoting circular economy practices.
                  • Be Part of the Change

                    Microplastic contamination is not a distant problem—it’s happening now, and its impact on human health is still unfolding. If you’re passionate about environmental sustainability and public health, the water industry offers a unique chance to be at the forefront of real-world change. Whether you’re a scientist, engineer, or advocate, your expertise is needed to ensure safe, clean drinking water for future generations.

                    The fight against microplastics is just beginning—will you be part of the solution?

                    Send your CV