Pollutants U.S. Korea France Italy Australia
TSS, mg L-1 20-2890 (80) 15-1021 49-498 15-377 39
BOD5, mg L-1 4-14 23-130 15-141 NA NA
COD, mg L-1 20-275 (40) 45-369 48-964 11-281 NA
NO3--N, mg L-1 0.71-1.14 0.14-6.1 NA NA 0.4
NHNH4+-N, mg L-1 NA NA NA NA 0.04
Kjeldahl N, mg L-1 0.4-20 (2.1) 1.4-23.9 NA NA 1.1
PO43--P, mg L-1 NA 0.70-6.44 NA NA 0.01
Total P, mg L-1 0.02-4.3 (0.3) 1.2-10.2 NA NA 0.07
Pb, µg L-1 10-1200 (15) 10-490 70-520 6-23 6
Zn, µg L-1 10-330 (60) NA 250-3800 28-124 100
Cu, µg L-1 10-400 (50) NA 30-190 1-53 10
TSS: total suspended solids; COD: chemical oxygen demand; BOD5: 5-day biological oxygen demand; NA: data not available
Table 1: Concentrations of pollutants in urban stormwater runoff [2,6-10]. Values in the parentheses represent an average or typical level.