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5 advances to protect water sources, availability

2025-08-01
(Press-News.org) Water is an essential requirement for life on Earth — it supports everything from cellular processes to ecosystems. Five papers published in ACS journals provide new insights to help protect natural water sources and ensure that more people have access to safe drinking water. Reporters can request free access to these papers by emailing newsroom@acs.org.

Reducing salt contamination of tidal rivers. Across the globe, the saltwater portion of tidal rivers — which rise and fall with the ocean tides — has been traveling farther upstream in the last few decades. Researchers publishing in Environmental Science & Technology Letters have identified three reasons: deeper water from rising sea levels or dredging, extreme climate events such as droughts or storm surges, and runoff from road salts or fertilizers. Because increasing salinity can threaten drinking water, agricultural water resources, and water infrastructure, the researchers propose monitoring salt concentrations in rivers to inform management strategies. Strategies for stormwater capture. Dry wells are underground water reservoirs meant to capture stormwater and replenish groundwater in flood- and drought-prone regions. A study published in ACS ES&T Water evaluates the effect of precipitation and location on dry well performance in Southern California. Results show that a series of dry wells along storm drain outlets maximizes stormwater capture during long-duration, moderate-intensity rainstorms. However, distributing dry wells evenly across an area of land would more effectively reduce street runoff and mitigate flooding. Monitoring plastic pollution with sea turtles. To better understand the impacts of marine plastic pollution, researchers publishing in Environmental Science & Technology have assessed sea turtle foraging habits. They found that certain types of plastic in the water, rather than the abundance of plastic, increase the chances of ingestion by sea turtles. Sea turtles are more likely to eat sheet-like flexible plastics, and smaller sea turtles are more likely to eat plastics because of their varied diet. A trumpet flower-shaped fog harvester. Researchers in ACS Applied Materials & Interfaces drew inspiration from nature and developed a trumpet flower-shaped fog harvesting system. The system features an exterior water-repellent surface with water-attracting spots that capture droplets from fog. Then a V-shaped channel directs the water into a storage container and may eventually be used for drinking. Hydrogel beads for water softening. Hard water contains high levels of calcium and magnesium, which can clog pipes, damage appliances and reduce the effectiveness of soaps and detergents. To remove these ions and soften water, researchers publishing in ACS ES&T Water developed reusable hydrogel beads. The beads removed up to 96% of water hardness and exhibited antimicrobial properties against Staphylococcus aureus and E. coli. The researchers say that the hydrogel beads offer an effective and safe alternative to ion-exchange resins, which can cause excessive sodium levels.

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The American Chemical Society (ACS) is a nonprofit organization founded in 1876 and chartered by the U.S. Congress. ACS is committed to improving all lives through the transforming power of chemistry. Its mission is to advance scientific knowledge, empower a global community and champion scientific integrity, and its vision is a world built on science. The Society is a global leader in promoting excellence in science education and providing access to chemistry-related information and research through its multiple research solutions, peer-reviewed journals, scientific conferences, e-books and weekly news periodical Chemical & Engineering News. ACS journals are among the most cited, most trusted and most read within the scientific literature; however, ACS itself does not conduct chemical research. As a leader in scientific information solutions, its CAS division partners with global innovators to accelerate breakthroughs by curating, connecting and analyzing the world’s scientific knowledge. ACS’ main offices are in Washington, D.C., and Columbus, Ohio.

Registered journalists can subscribe to the ACS journalist news portal on EurekAlert! to access embargoed and public science press releases. For media inquiries, contact newsroom@acs.org.

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[Press-News.org] 5 advances to protect water sources, availability