Fluorescein Dye Tracing in a Chalk Stream C016 / 4221
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Fluorescein Dye Tracing in a Chalk Stream C016 / 4221
Evidence of the bright-green fluorescein water dye that has been added to an Oxfordshire chalk stream to confirm the source of a pollutant that is contaminating the stream. Environment and water resource agencies use fluorescein dyes to trace ground water flows to assist in the location or presence of pollutants. Fluorescein is a fluorescent water dye considered ecologically safe and often chosen for tracer studies because of its low toxicity, water solubility, ease of detection, ready availability and low cost. Dye tracking may be either qualitative, that is, showing the presence of particular flow and quantitative, when the amount of the traced dye can be measured by special instruments
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9204471
© SHEILA TERRY/SCIENCE PHOTO LIBRARY
Ecology Fluorescent Pollutants Toxic Toxicity Tracer Tracking Agencies Environment Agency Groundwater Water Resource Waterflow
EDITORS COMMENTS
This print captures the mesmerizing beauty of fluorescein dye tracing in a chalk stream. The vibrant, bright-green hue stands out against the serene backdrop of an Oxfordshire chalk stream, providing undeniable evidence of a pollutant contaminating its waters. Fluorescein dyes are invaluable tools used by environment and water resource agencies to trace ground water flows and identify the presence or location of pollutants. Chosen for their ecological safety, low toxicity, and ease of detection, these fluorescent water dyes offer a cost-effective solution for pollution studies. In this image, we witness the power of fluorescein as it illuminates the path taken by contaminated water. Its vivid color serves as a visual marker that guides researchers towards identifying potential sources of pollution within the stream. Dye tracking can be both qualitative and quantitative; it not only reveals the presence or absence of specific flow patterns but also allows for precise measurements using specialized instruments. This technique aids in sewer analysis, flow mapping, leak detection, and other crucial aspects related to environmental preservation. Sheila Terry's remarkable photograph reminds us of our responsibility to protect our precious water resources from harm. It highlights how science plays an essential role in understanding and mitigating pollution through innovative methods like dye tracing.
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