ISQG

AcronymDefinition
ISQGInterim Sediment Quality Guidelines (Canada)
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The concentrations of Cu and As in sediments exceeded ISQG in all sites besides SS-5.
SS Fe Ti V Cr Mn Co Ni 1 8962 840 25.4 8.89 450 5.34 11.3 2 4674 2037 45.9 9.42 239 8.12 14.8 3 20018 4203 121 11.1 245 13.8 17.0 4 4471 1499 35.3 1.95 75.4 4.36 3.22 5 2053 2094 39.3 11.8 172 6.73 18.8 6 13674 3176 84.6 7.16 176 7.76 5.78 8 6537 1382 36.5 7.17 200 5.51 8.14 ISQG -- -- -- 37.3 -- -- -- SS Cu Zn As Mo Cd Sb Pb 1 119 41.4 6.93 24.0 0.32 0.23 11.5 2 620 99.6 9.41 109 0.44 1.54 30.1 3 494 54.4 29.7 80.0 0.33 2.96 40.5 4 137 67.2 11.8 25.4 0.97 1.62 18.4 5 15.4 26.9 2.50 0.27 0.09 0.12 3.52 6 126 92.3 13.1 33.1 0.84 1.46 13.8 8 192 36.8 8.21 12.3 0.14 0.79 15.5 ISQG 35.7 123 5.9 -- 0.6 -- 35.0 Table 6: Water quality of the Voghji River basin based on only heavy metals.
Ecological risk as assessed by ISQG and the method developed by Hakanson (1980) was low to medium in RDS and low in BLS and WBS.