Image: When phenols, compounds that are commonly found in drinking water, mix with chlorine, hundreds of unknown, potentially toxic byproducts are formed. Credit: Marissa Lanterman/Johns Hopkins University
Mixing drinking water with chlorine, the United States’ most common method of disinfecting drinking water, creates previously unidentified toxic byproducts, says Carsten Prasse from Johns Hopkins University and his collaborators from the University of California, Berkeley and Switzerland.
The researchers’ findings were published … [more…]
Water samples taken from three upstate watersheds by New York City’s Department of Environmental Protection (DEP) revealed 14 different drugs, and unspecified types personal care products in New York City’s drinking water.
The water samples were extracted between March and December of last year and analyzed for 72 compounds, including antibiotics and prescription drugs. DEP officials deny any risk, but Dr. Olga Naidenko, a scientist with a Washington, D.C. watchdog … [more…]
Photo: Kate O’Connell: “I think in London the eels were behaving bizarrely in the Thames at some point.” Photograph: Alan Betson
Data involving 50 cities published in 2015 found that London’s river Thames was the worst for cocaine levels in sewage
The environmental watchdog has been asked what it is doing to monitor the presence of illicit drugs in Irish water following research in some European cities that traced high … [more…]
The environmental risks of ciprofloxacin in fresh water have increased worldwide between 1995 and 2015. Inset: Counts of ecoregions where specific percentage of the water volume exceeds PNEC, or "predicted no effect concentrations." R. OLDENKAMP ET AL, ENVIRONMENTAL RESEARCH LETTERS
Concentrations of pharmaceuticals in rivers and lakes have significantly increased across the globe over the past 20 years, according to a new study published in the journal Environmental Research Letters. … [more…]
Exposure to emerging contaminants, even at extremely low doses, can cause adverse health effects for humans, including endocrine disruption which can lead to developmental malformations, interference with reproduction, increased cancer risk and disturbances in the immune and nervous system functions. These emerging contaminants include pharmaceuticals and personal care products, hormones, perfluorinated alkyls and volatile organics, and they may pose a threat to both the environment and human health. … [more…]