Pollutants are threatening human health and marine life

By Eugene Kasuku
Every day, our environment is exposed to new chemical pollutants, Emerging Pollutants (Eps) which are substances like pharmaceuticals, cosmetics, pesticides, detergents, and micro-plastics that enter the aquatic environments through domestic waste, hospital runoff, industrial discharge and agricultural practices. While they exist in trace amounts, their long-term effects are anything but small.
Emerging pollutants have a unique and dangerous behavior in aquatic ecosystems. They do not break down easily. Instead, they bio-accumulate in the tissues of aquatic organisms, bio-concentrate in their environments, and biomagnify up the food chain from plankton to fish, and ultimately to humans. The danger lies (cancer-causing) in their property’s toxic and carcinogenic mutagenic (DNA-altering) properties. Recent research shows links between EP exposure and increased cancer rates, damage to the nervous system, delays in infant development, and endocrine disruption in both humans and wildlife.
Our coastal communities depend heavily on fisheries for both nutrition and livelihood. Unfortunately, fish exposed to Eps often show reduced productive ability, stunted growth, deformities, and compromised immune systems. For humans consuming seafood, the risk of ingesting high concentrations of these pollutants is real and growing. The sustainability of marine ecosystems and the health of those who depend on them are at stake.
Kenya Marine and Fisheries Research Institute has been at the forefront of studying aquatic pollution. Through ongoing research on water quality, sediment analysis, and fish tissue sampling in Kenya’s marine and freshwater bodies, KMFRI is helping to identify key EP sources, map pollution hotspots, and assess the ecological and health risks.
This research provides critical data to guide policymakers and inform best practices in waste management, fisheries regulation, and marine conservation efforts. KMFRI employs advanced analytical techniques, including chromatography and mass spectrometry, to detect and quantify emerging pollutants in aquatic environments.
 
The issue of emerging pollutants is complex and multifaceted, requiring a concerted effort from governments, industries, and individuals.
 
By understanding the problem, supporting research and policy initiatives, and making conscious choices in our daily lives, we can work towards reducing the impact of emerging pollutants on human health and marine life. Let's take action today to protect our planet's precious resources for future generations.
To mitigate the threat of EPs, we must improve wastewater treatment infrastructure to filter out pharmaceuticals and industrial pollutants before they reach water bodies.
We also need to strengthen regulations on the disposal of hospital, agricultural, and domestic waste, promote eco-friendly alternatives to personal care and household products, raise public awareness on how everyday choices contribute to pollution, and support research institutions like KMFRI in their monitoring and policy development efforts.
Whether you're a policymaker, consumer, or community leader, you have a role to play. You can sign petitions supporting stricter regulations on emerging pollutants, reduce your use of single-use plastics and chemicals, support organizations working on environmental conservation, and stay informed about the latest research and developments on emerging pollutants.
Did you know that even trace amounts of caffeine, painkillers, and birth control pills have been detected in fish across the world? These drugs enter water systems through human waste and are not fully removed by conventional treatment plants. Some fish have shown altered behavior and reproductive cycles as a result.