New research finds that PFAS chemicals in products and contaminated drinking water can reduce antibody production in adults, making the immune response to a new virus weaker. The study highlights risks for some groups and supports water regulation.
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A study from Iowa State University shows some common cleaning methods for recyclable plastic can release phthalates into wash water. Ultrasonic cleaning and detergent with sodium hydroxide released DEHP and DCHP, and reuse of water raised DEHP levels.
Guanacaste is Costa Rica's driest province and attracts tourists and foreign buyers. Rapid coastal development has increased water shortages, pollution and local protests, while officials and studies warn aquifers and ageing water systems are under pressure.
A University of Notre Dame study using national survey data finds that improved access to safe drinking water lowers the odds of stunting in Mozambican children by about 20%. Improved sanitation showed no independent effect on stunting.
