‘It’s a disaster’: drought measure to suck water from River Wharfe met with anger

Campaigners accuse Yorkshire Water of negligence and say plan to top up reservoirs will kill the river’s fish

Most of Windermere polluted with sewage bacteria, finds biggest survey of its kind

Exclusive: Concentrations of faecal bacteria in the lake were found to peak in summer but there were high levels throughout year

Why COD _Mn Is Not Suitable for Assessing NOM Concentration in Source Waters

<p xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" dir="auto" id="d19423333e118">Total organic carbon (TOC) and permanganate chemical oxygen demand (COD _Mn) are the most commonly employed methods to determine the amount of natural organic matter (NOM) in raw and drinking water. However, the usage of COD _Mn is questionable due to its variable degrees of oxidation for different types of organics. Our study investigates the ratio of COD _Mn to TOC in source waters with diverse NOM compositions characterized by specific UV absorbance (SUVA) and total organic nitrogen (TON). Herein, mountainous water sources with high amounts of humic substances (high SUVA, low TON) exhibit approximately 1.8–2.5 times higher COD _Mn values than lowland algae‐laden sources (low SUVA, high TON) despite having the same TOC values. The determination of COD _Mn, therefore, can give misleading information about the amount of organics in waters with different NOM character and underestimate the NOM concentration in lowland algae‐laden water sources, which could have implications for drinking water quality. </p><p xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" dir="auto" id="d19423333e139">Permanganate chemical oxygen demand can give misleading information about the amount of organics in water sources. In algae‐laden waters, COD _Mn significantly underestimates their concentration. </p>

AWWA Water Science

<p><em>AWWA Water Science</em> is an interdisciplinary journal that publishes original, refereed research on the science, engineering, and social aspects of water. AWS explores theoretical, experimental, and practical approaches that advance fundamental understanding and application of all aspects of water works and any source water that could conceivably become a potable water supply.</p><p> </p><p> </p>

Sadhguru Pinpoints America's Drinking Water Problems

"Water quality in United United States not being good is a crime," Sadhguru told Newsweek.

Hard choice for cattle farmer after Biloela property contaminated by PFAS

As Larry Acton looks to retirement, he is grappling with whether to sell his land at a loss or hand the property, which has contaminated groundwater, to his son.

Adur River Recovery | A Sussex-Born Blueprint for Nationwide Recovery