Water Quality & Pollution – Aquarius-Systems

Kinnickinnic River Restoration Combines Harvesting and Debris Removal

Fri, 17 Apr 2026 17:58:48 +0000

Decomposing Weeds After Spraying Kills Fish in Lake

Tue, 29 Jul 2025 16:34:36 +0000

Residents around Indian Lake in Worcester, Massachusetts, are raising concerns after a spike in fish deaths following the recent application of aquatic herbicides. These chemicals, intended to control the spread of invasive weeds, work by killing the plants outright. But once the plants die, they begin to decompose in the water—a process that consumes dissolved oxygen. As oxygen levels drop, fish and other aquatic life can no longer survive, resulting in visible fish kills along the shoreline.

This chain reaction—herbicide application, plant decay, and oxygen depletion—has become a growing concern for communities trying to balance weed control with aquatic health. Indian Lake residents voiced frustration over poor communication from city officials, especially after seeing and smelling the aftermath of the July 2025 treatment. This incident underscores the environmental risks of chemical plant control and the importance of considering non-chemical alternatives like mechanical weed harvesting.

Read More https://www.telegram.com/story/news/2025/07/22/dead-fish-herbicides-communication-discussed-at-indian-lake-meeting/85306476007/?gnt-cfr=1&gca-cat=p&gca-uir=true&gca-epti=z118908p000650c000650d00—-v118908d–79–b–79–&gca-ft=234&gca-ds=sophi

Chemical Spraying Causes Major Fish Kill in Florida Canal

Tue, 15 Jul 2025 18:18:06 +0000

Following a chemical treatment aimed at controlling aquatic vegetation in Port St. Lucie’s Elkhorn Canal, residents reported what they called the “worst smell in the entire world” as countless fish perished on the canal’s surface. Water tests revealed that dissolved oxygen levels plunged to levels unsustainable for aquatic life—an unintended but severe consequence of the applied chemicals.

Critics argue that proper dissolved-oxygen testing should have been completed before treatment—something the contractor failed to do. Environmental advocates now recommend exploring safer alternatives, such as mechanical harvesting or biological controls, to manage vegetation without triggering oxygen depletion or fish kills.

When Waterway Management Turns Harmful

Mon, 30 Jun 2025 18:12:20 +0000

In June 2024, a chemical herbicide application in Florida’s Elkcam Waterway resulted in a catastrophic fish kill. Within 24 hours, residents reported fish gasping at the surface, and by the end of the week, thousands of dead fish had washed up along the banks.

This devastating incident underscores the dangers of using chemicals to manage aquatic vegetation. While herbicides can offer a quick solution, the long-term damage can be severe—destroying ecosystems, harming wildlife, and raising health concerns for nearby communities.

The fish lost in Port St. Lucie were part of a balanced aquatic system that also supported birds, turtles, and other species. The sudden collapse of this environment sparked outrage and concern among residents who now question the safety and sustainability of chemical treatments.

Fortunately, there is a better way. Mechanical harvesting offers an eco-friendly, chemical-free method of aquatic weed control. It physically removes vegetation from the water without introducing toxins or disrupting the ecosystem. This method not only preserves water quality but also protects the fish, plants, and wildlife that depend on healthy aquatic habitats.

Whether managing a private lake, public waterway, or residential canal, mechanical harvesting is a responsible, sustainable solution. It’s an effective alternative for those who care about long-term water health and want to avoid the risks of herbicide use.

Hydrilla Eradication Efforts Raise PFAS Concerns in New York Lakes

Wed, 28 May 2025 14:18:19 +0000

Hydrilla, a non-native aquatic plant, has been labeled one of the world’s most invasive species. While it can dominate shallow, warm waters in places like Florida, its threat in deep, cold lakes such as those in New York is far less clear. Nevertheless, aggressive chemical eradication campaigns have been launched across the state, including in Cayuga Lake and the New Croton Reservoir—key drinking water sources for millions. These treatments have relied heavily on herbicides like fluridone, often applied in massive quantities over several years.

Fluridone is a PFAS chemical—a class of compounds known for their persistence in the environment and growing links to serious health issues. Despite being banned from use in food packaging and other consumer products in New York, it’s being deliberately applied to drinking water sources at concentrations vastly exceeding current PFAS safety thresholds. Native aquatic plant populations have sharply declined, and no monitoring has been conducted on the impacts to fish, birds, or invertebrates. With millions of New Yorkers at potential risk, experts are calling for more transparency, scientific scrutiny, and a halt to unnecessary herbicide use in critical water supplies.

Water Hyacinths May Help Remove Microplastics From Water

Thu, 01 May 2025 17:15:16 +0000

Water hyacinth is often seen as a serious problem in lakes and rivers around the world. The fast-growing invasive plant can clog waterways, block sunlight, reduce oxygen levels, and harm native wildlife. Managing large infestations is difficult and expensive, especially in tropical and subtropical regions where the plant spreads quickly.

Now, researchers are exploring whether this problematic plant might also offer some benefits. A new study suggests that water hyacinths could help remove microplastics from freshwater. Scientists found that the plants trapped tiny plastic particles in their roots, potentially helping clean up polluted waterways.

In the experiment, researchers placed water hyacinths in tanks containing microplastics and observed how the particles clung to the plant roots. After just four days, the plants removed more than half of the microplastics from the water.

While more research is needed, this study adds to the growing interest in finding new ways to manage invasive aquatic plants and fight plastic pollution in lakes and rivers.

Salvinia Threat Emerges in Lake Victoria Waters

Tue, 25 Mar 2025 20:16:39 +0000

A new invasive type of water hyacinth, Salvinia spp., has been discovered in Lake Victoria. It reproduces rapidly, doubling its biomass within 8 days due to high nutrient levels caused by human activities such as improper waste disposal and deforestation. Over 36 tons have already been removed, but the plant continues to spread, threatening fish populations, water transport, and biodiversity by depleting oxygen and reducing water quality.

The newly discovered Salvinia spp. in Lake Victoria likely entered the lake through contaminated fishing gear, boats, or water currents connecting nearby ecosystems. Unlike the regular water hyacinth (Eichhornia crassipes), which forms thick mats on the surface, Salvinia spp. spreads faster and is more resilient under varying environmental conditions. It depletes oxygen more aggressively, suffocating aquatic life and reducing biodiversity. This variant poses a greater ecological threat and requires immediate control measures.

The species negatively impacts fishing, tourism, and water supply, making urgent action necessary.

Milwaukee, Wisconsin: Leading the Charge as a Global Water Hub

Tue, 28 Jan 2025 18:26:51 +0000

Milwaukee, a city steeped in history and industry, is emerging as a global leader in addressing one of humanity’s most pressing challenges: water. As the world faces growing concerns over water scarcity, contamination, and climate resilience, Milwaukee has positioned itself at the forefront of innovative solutions. Through strategic investments, world-class institutions, and a commitment to sustainability, the city has earned its reputation as “Water Forward.”

The Freshwater Capital of the World

Located on the shores of Lake Michigan, one of the largest freshwater bodies on the planet, Milwaukee has long recognized the value of water as a vital resource. The city’s proximity to this vast freshwater supply provides not only a critical natural asset but also a responsibility to protect and manage it wisely. This understanding has driven Milwaukee to establish itself as a center of excellence for water research, technology, and innovation.

The Global Water Center

At the heart of Milwaukee’s water innovation efforts lies the Global Water Center, a state-of-the-art facility that serves as a hub for research, collaboration, and entrepreneurship. Opened in 2013, this cutting-edge center brings together academic researchers, startups, established businesses, and policymakers to develop solutions for water-related challenges. From advanced filtration technologies to sustainable wastewater management practices, the Global Water Center is a beacon of hope for regions grappling with water crises.

A Thriving Water Technology Cluster

Milwaukee’s water technology sector is one of the fastest-growing in the world. The city is home to The Water Council, an organization that connects water-focused businesses and institutions to drive innovation and economic growth. By fostering collaboration among its members, The Water Council has helped Milwaukee attract global companies and startups eager to tackle issues like water scarcity, pollution, and climate adaptation.

Academic Excellence and Research

Milwaukee’s educational institutions play a pivotal role in its water-forward strategy. The University of Wisconsin-Milwaukee’s School of Freshwater Sciences is the only graduate school in the United States dedicated solely to the study of freshwater. This world-renowned institution trains the next generation of scientists and engineers, equipping them with the skills to address global water challenges.

Sustainability in Action

Milwaukee’s commitment to sustainability extends beyond research and innovation. The city has implemented practical measures to improve water quality and resilience. Initiatives like green infrastructure projects, stormwater management systems, and river restoration efforts showcase Milwaukee’s dedication to protecting its waterways while reducing environmental impact.

A Global Model for Water Solutions

Milwaukee’s water-forward approach has not gone unnoticed. The city has become a model for other regions seeking to address their own water challenges. By leveraging public-private partnerships, investing in education and technology, and fostering a culture of collaboration, Milwaukee demonstrates how cities can take proactive steps to secure their water future.

Facing the Future with Confidence

As the global demand for clean, accessible water continues to grow, Milwaukee stands ready to lead. By harnessing its unique assets, fostering innovation, and maintaining a commitment to sustainability, the city exemplifies what it means to be a global water hub. Milwaukee is not just addressing today’s water challenges—it is shaping the future of water for generations to come.

Chloraminated Water Causes Massive Fish Kill in Minnesota

Thu, 19 Sep 2024 15:01:09 +0000

The Minnesota Pollution Control Agency released new information regarding its ongoing efforts to determine what caused a massive fish kill in Duluth’s Tischer Creek in August.

MPCA Communications Specialist Beverly Godfrey says the city of Duluth drained an estimated 1.7 million gallons of chloraminated water into the creek from the Woodland Reservoir over a 15-hour period as part of a maintenance operation for the city’s drinking water system. Chloraminated water is drinking water that has been treated with chloramine, a disinfectant that’s made by combining chlorine and ammonia.

Chloramine is more stable than chlorine, so it can protect water from bacterial regrowth for longer, it produces fewer disinfection byproducts than chlorine and has a less noticeable chlorine odor and taste.

How much trash does the Mississippi River funnel from the heartland to the ocean?

Thu, 01 Feb 2024 15:06:19 +0000

Although many people might think oceanside cities bear the responsibility to keep plastic and trash out of the water, the Mississippi River can act as a funnel for that trash from the heart of the country to the Gulf of Mexico. The Mississippi River drains more than 40% of the continental U.S. – just how much debris does it take along with it?

That’s what a group of researchers and environmental advocates wanted to find out when they began a litter analysis of a handful of cities along the river a few years ago. This fall, they released what they’re calling the “first-ever snapshot of the state of plastic pollution along the Mississippi River.”

About 80,000 litter items were logged during the study’s data collection period.

Plastic was the top material found in and around the river, making up 75% of the total trash. Paper and lumber was next at 9%, followed by metal at 7%, glass at 5%, and personal protective equipment like masks at 2%.

The top 10 most commonly found items included:

11,278 cigarette butts
9,809 food wrappers
6,723 beverage bottles
5,747 foam fragments
4,239 hard plastic fragments
4,210 paper and cardboard items
3,882 plastic bags
3,640 aluminum or tin cans
3,260 foam or plastic cups
3,149 film fragments

Other notable finds include 825 masks, 480 items of clothing and shoes and 291 pieces of fishing gear.

Read More https://mississippitoday.org/2023/12/29/mississippi-river-trash/