|
From Salted Streets to Salty Streams
| Défi: | Environnement | | Catégorie: | Junior | | Région: | | | Ville: | , | | École: | | | Sommaire: | 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. |
| Prix | Valeur | Prix d'excellence - Junior
Médaille d'argent
Sponsor: Sciences jeunesse Canada | 700,00 $ | Bourse d’études de Western University
Médaillé d’argent - Bourse d'admission de 2 000 $
Sponsor: Université Western | 2 000,00 $ | | Total | 2 700,00 $ | |
Imprimer/Télécharger en format PDF