North America’s Great Lakes Change Color Due to Toxic Algae Attack

NEW MEXICO – Great Lakes of North America , Lake Erie in particular, has experienced toxic algae blooms that have impacted water quality and its ecosystem.

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According to a report from NASA Earth Observatory, Landsat-9 satellite imagery shows a dramatic change in the condition of Lake Erie in August 2024. The algal bloom, which is mostly caused by cyanobacteria or blue-green algae, caused the water to turn bright green.

As reported by IFL Science, these Cyanobacteria grow rapidly due to warm water temperatures and high nutrient content such as nitrogen and phosphorus, which often come from agricultural and industrial waste.

Extreme weather events, such as heavy rain and heat waves, contribute to this situation by providing an ideal environment for algal blooms.

At its peak, the algal bloom covered an area of ​​1,700 square kilometers on August 22, 2024. This algal bloom can cause a variety of environmental and health problems.

Toxins produced by cyanobacteria, such as microcystins, can be harmful to wildlife and humans. In humans, exposure to these toxins can cause allergic reactions, skin, eye, and respiratory tract irritation. In pets and livestock, exposure to the toxins can cause serious illness or even death if they consume contaminated water.

Additionally, algal blooms can reduce oxygen levels in the water, leading to mass fish deaths and other negative impacts on the ecosystem.

The toxin monitoring is conducted by NOAA’s Great Lakes Environmental Research Laboratory using data from monitoring stations on Lake Erie. This data is important for understanding algal bloom patterns and predicting similar events in other large lakes, such as Lake Superior.

Climate change is a major factor thought to be contributing to the increased frequency and intensity of algal blooms in large lakes.

This highlights the need for further action to address pollution and climate change issues to protect freshwater ecosystems and public health.

(wbs)