A recent study of bottled water, conducted by the journalism organization Orb Media, found that almost every major brand of bottled water is contaminated with particles of plastic. The researchers tested 250 bottles of water—from nine countries and 11 brands. They dropped a red dye in each, which stuck to the plastic and glowed when
Phosphorus is one of the most important components in the ongoing struggle to balance agricultural prosperity with water quality. When farmers fertilize their fields with this essential nutrient, plants use some, with precipitation carrying excess amounts into nearby bodies of water, fueling algal blooms that can kill fish and and endanger drinking water quality. But
An estimated 9 to 10 percent of Wisconsin wells have tested over safe limits for nitrate. Studies have estimated that 90% of nitrate in groundwater comes from spreading of synthetic fertilizers and dairy manure on farm fields, with most of the remainder from septic systems. Nitrate behaves differently. Relatively little lingers near roots where it