Student Research Reports
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The Impact of a Spring and an Artificial Lake on the Ahja River
Organization(s):Estonian Learning Expedition
Country:Estonia
Student(s):Uku Raasik
Triinu Liis Kuul
Lille-Mai Kangur
Drevon Küttim
Beatriche Huber
Evemina Erilaid
Helleri Hirv
Roberto Navarrete
Mari-Ann Loit
Ekke Lasse Lüdimois
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Educator(s):Taavi Tammela, Laura Altin
Contributors:Johanna Raudsepp
Report Type(s):International Virtual Science Symposium Report
Protocols:Alkalinity, Conductivity, Dissolved Oxygen, Nitrates, pH, Water Temperature, Water Transparency
Presentation Poster:
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Language(s):English
Date Submitted:03/05/2025
Overconsumption, water waste, climate change and pollution limit our access to quality drinking water. Due to this, our ability to grow crops and keep livestock is greatly inhibited, dehydration is an everyday occurrence, and more ecosystems are drying up daily. This is why it is crucial to study various water bodies, including rivers. The aim of our research was to assess the effect of an artificial lake and a spring on the Ahja river by taking samples of the river water and measuring various parameters. We found that the spring causes the river water to be more transparent, but does not have a significant effect on temperature. The concentration of dissolved oxygen and nitrates should be studied further in order to see what causes the concentration to be higher or lower.
Keywords: Ahja river; spring; artificial lake; water quality