The original dye that was used in the attempt to clean Chicago was oil-based. Since then, it has been changed to an orange powder which turns green once mixed into the river. The city has kept the ...

But is green beer bad for you? Spoiler alert: The dye is not any worse for you than the alcohol itself. Here's when St. Patrick's Day 2025 is, the origin of the holiday, why we wear green and what ...

Every year as part of the city’s St. Patrick’s Day celebrations, thousands of onlookers clad in green cheer on a boat crew sprinkling orange powder into the Chicago River to turn it a festive ...

As Chicago prepares for the St. Patrick’s Day parade, it's that time of year when members of the Chicago Journeymen Plumbers Local Union 130 dye the city’s river green. Indiana Pacers guard ...

As Chicago prepares for the St. Patrick’s Day parade, it's that time of year when members of the Chicago Journeymen Plumbers Local Union 130 dye the city’s river green.

Methyl orange (MO) is a water-soluble synthetic organic azo dye commonly employed as a pH indicator and as a coloring agent in many industries. Its discharge into aquatic ecosystems poses significant ...