Magnetic Resonance Safety Expert (MRSE) Practice Exam

Question: 1 / 450

What effect does gadolinium have on environmental samples?

No known effect

Beneficial effects on bacteria

It is a pollutant

Gadolinium is considered an environmental pollutant primarily due to its use in contrast agents for medical imaging, specifically in MRI scans. When these agents are used, gadolinium may be excreted and can enter water systems. The presence of gadolinium in aquatic environments raises concerns as it can affect the biota, including various microorganisms and aquatic organisms, potentially disrupting ecosystems.

Research has indicated that gadolinium can accumulate in sediments and can be toxic to certain forms of aquatic life, thereby affecting the biological balance of these environments. This accumulation can have cascading effects on food chains and biodiversity, highlighting the significance of gadolinium as a concern for environmental health. Therefore, recognizing gadolinium as a pollutant is integral in understanding its potential impact on ecosystems and the need for monitoring levels in environmental samples.

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It increases fish population

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