Pharmaceutical pollution: Medications in our water

Image created using ChatGPT shows clear corked bottle containing a few multi-coloured pills on surface of green-blue water, background blurred.
Image created using ChatGPT generative artificial intelligence (AI)

In this SustMeme Guest Post, Jane Marsh, Editor-in-Chief at Environment.co, investigates environmental and human impacts of pharmaceutical pollution, and considers collective next steps.

JM: Pharmaceutical pollution is on the rise; and this widespread increase is raising compliance, reputational and long-term viability concerns amongst business-to-business (B2B) stakeholders.

In response, businesses must address these challenges — and they must do so amid the disruption of advancing technologies and under pressure from growing public awareness and scrutiny.

Necessary next steps include overhauling safer operations to meet federal standards, as well as demonstrating ecological stewardship.

Scope of contamination in water

Recent studies reveal that most global water systems contain medicinal residues, including antibiotics, hormones and analgesics. Some 62% of site samples showed carbamazepine, which is administered for epilepsy and nerve pain. Over 50% uncovered the diabetes medication metformin and caffeine.

Most medicines in the environment derive from wastewater treatment plants, drug manufacturing facilities and healthcare clinics. Unfortunately, the plants cannot remove these substances entirely.

As a result, these contaminants are allowed to accumulate over time in surface water and drinking-water sources. Their persistence in the environment and municipal networks underscores the urgent need for action across the pharmaceutical, medical, and utility sectors. The warning signs are plain to see.

Ecosystems and biodiversity risks

Pharmaceutical contamination of water systems poses significant concerns for ecosystems and wildlife. Many medicines disrupt endocrine functions in fish and amphibians, change reproductive habits, and cause different moods and behaviours. This could have dire impacts on populations and environmental services.

For example, antibiotics impede photosynthesis in algae and aquatic flora, making it more difficult for them to grow and thrive. Other bacteria become resistant after chronic exposure to these compounds, which in turn enables superbugs to spread and wreak havoc on the environment and society.

The long-term consequences of these multiple impacts could cause a chain reaction through food webs, also diminish biodiversity and ultimately compromise ecosystems’ ability to adapt.

Implications for human health

Even trace amounts of pharmaceuticals in drinking water pose human health risks. Like wildlife, chronic exposure could lead to altered bodily processes and antibiotic resistance.

Antimicrobial resistance causes 700,000 deaths from bacterial infections annually. Scientists predict 10 million deaths by 2050, and related expenditures will reach 3.8% of the gross domestic product.

Knock-on effects of human health implications could also drive many people into extreme poverty.

In response, regulatory bodies actively pursue stricter guidelines and limits for B2B stakeholders to follow.

Consumer awareness is leading the charge as populations demand greater transparency. For instance, 73% of consumers in the US, Europe, and Asia would pay more for clean-label food and supplements, including those free from unwanted chemicals and pharmaceutical residues.

Regulatory landscape and compliance 

Compliance standards for pharmaceuticals are tightening worldwide. In 2019, the US Environmental Protection Agency finalised a cost-saving rule for the healthcare sector to handle hazardous waste pharmaceuticals while protecting people and the environment.

The European Union’s Water Framework Directive also protects regional water bodies. Officials review the list of pollutants for the Groundwater Directive every six years.

B2B organisations need to follow these stringent regulations to prevent legal disciplinary action. From 2013 to 2024, corporations and governments faced over 200 environmental lawsuits globally for pollution-related crimes. Without proactive measures, these situations will pose financial and reputational risks to business.

Solutions and innovations for mitigation

Investments in cutting-edge water treatment technologies effectively remove pharmaceutical residues from wastewater. Research indicates over 90% removal success through photocatalysis, ozonation and gas-phase pulsed corona discharge-based oxidation methods.

Reducing pharmaceutical effluents at source — by integrating green chemistry at manufacturing plants, for example, or implementing take-back programmes — also prevents excessive environmental leaching.

Joined-up action is needed; and this means stakeholders must collaborate. Working together will require alliances to be formed between healthcare manufacturers and providers, environmental scientists, and utility companies to develop standard practices and promote collective responsibility. This is a team game.

On top of wider environmental and healthcare benefits, such initiatives are also good for business. Staying ahead of regulatory changes, adopting sustainability principles and practices, plus taking measures to improve transparency all serve to enhance regulatory compliance and build organisational resilience.

Turning risk into opportunity

The reality is that pharmaceuticals will continue threatening ecosystems and human health without proper checks. So, to overcome these challenges, B2B enterprises must comply with evolving standards and invest in innovative treatment technologies. In short, business-as-usual is not the answer.

Engaging across various sectors to develop solutions and best practices is the most effective way forward. The next steps to implement safeguards and transform industries must therefore be taken together.


Portrait of Jane Marsh, smiling leant against white pillar, stood on harlequin tiled red and white floor, wearing white sleeveless silk top and black jeans.

Jane Marsh is the Editor-in-Chief of Environment.co, where she leads the publication’s mission to make sustainability accessible and actionable for readers worldwide. With a background in environmental journalism and communications, Jane has spent her career exploring the intersection of technology, policy, and sustainable living. Jane is passionate about advancing awareness around clean energy transitions, circular economy practices, and the future of green infrastructure. Through her editorial direction, Environment.co continues to highlight the people and technologies driving a more sustainable planet.


Further Reading:


You can check out the full archive of past Guest Blog posts here.

Would you like to Guest Blog for SustMeme? For more info, click here.



SUSTMEME: Get the Susty Story Straight!