Detecting trace amounts of multiple classes of antibiotics in foods

Widespread use of antibiotics in human healthcare and livestock husbandry has led to trace amounts of the drugs ending up in food products. Long-term consumption could cause health problems, but it’s been difficult to analyze more than a few antibiotics at a time because they have different chemical properties. Now, researchers reporting in ACS’ Journal […]

Earth’s oceans are storing record-breaking amounts of heat

sea ice

Pandemic-related shutdowns may have spared Earth’s atmosphere some greenhouse gas emissions last year, but the world continued to warm. Water temperature measurements from around the globe indicate that the total amount of heat stored in the upper oceans in 2020 was higher than any other year on record dating back to 1955, researchers report online […]

Fish exposed to even small amounts of estrogen produce fewer males — ScienceDaily

Water tainted with even a small concentration of human hormones can have profound effects on fish, according to a University of Cincinnati biologist. UC assistant professor Latonya Jackson conducted experiments with North American freshwater fish called least killifish. She found that fish exposed to estrogen in concentrations of 5 nanograms per liter in controlled lab […]