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From Salted Streets to Salty Streams
| Challenge: | Environment | | Category: | Junior | | Region: | | | City: | , | | School: | | | Abstract: | This experiment assessed whether road-salt was toxic to invertebrates that live in roadside streams. Freshwater shrimp (Hyalella azteca) were exposed to different concentrations (0-7200mg Cl/L) of road-salt (NaCl). After seven days, almost all (>85%) animals in the control and lower concentrations (900, 1800mg Cl/L) survived, but all animals in the highest concentration died. These results indicate invertebrates in urban streams are at risk from road-salt. |
| Awards | Value | Excellence Award - Junior
Silver Medal
Sponsor: Youth Science Canada | $700.00 | Western University Scholarship
Silver Medallist - $2000 Entrance Scholarship
Sponsor: Western University | $2 000.00 | | Total | $2 700.00 | |
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