Why the Lincoln Memorial Reflecting Pool keeps turning green: The science behind the algae blooms
By
Ana Georgescu
Summary
The article examines why the Lincoln Memorial Reflecting Pool in Washington, DC, keeps turning green with algae shortly after being refilled following a $14 million renovation. Despite President Trump's promise of "American flag blue" waters, the pool suffers from recurring algal blooms due to the combination of nitrogen, phosphorus, sunlight, and stagnant water. The piece explores the scientific, environmental, and logistical challenges of maintaining a large, shallow, outdoor water feature in an urban setting, including nutrient runoff, warm temperatures, and the limitations of filtration systems.
Source
bskyWhy the Lincoln Memorial Reflecting Pool keeps turning green: The science behind the algae bloomscen.acs.orgKey quotes
· 3 pulledThough President Donald J. Trump promised 'American flag blue' waters, the Lincoln Memorial Reflecting Pool in Washington, DC, quickly turned bright green with algae after it was refilled on June 10 following renovations that cost more than $14 million
Nitrogen, phosphorus, sunlight, and stagnant water can combine to create the perfect conditions for algal blooms
The pool's shallow depth and exposure to direct sunlight create an ideal environment for photosynthetic algae to thrive
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