Table 1. Land use and peak chloride concentrations in streams of Baltimore.
| Population density, people per ha
|
Maximum CI− concentration, mg/liter | ||||||
|---|---|---|---|---|---|---|---|
| Station | Land use | Drainage area, ha | Winter | Spring | Summer | Fall | |
| With roadways | |||||||
| Baisman Run | Suburban/forest (≈ 1% impervious surface) | 381 | 1 | 38-116 | 19-29 | 22-37 | 23-29 |
| Gwynnbrook | Suburbanizing | 1,066 | 16 | 181-1,051 | 34-57 | 30-216 | 24-33 |
| Glyndon | Suburban | 81 | 9 | 229-1,509 | 79-117 | 96-469 | 72-606 |
| Villa Nova | Suburban/urban | 8,348 | 12 | 341-2,458 | 45-285 | 38-54 | 39-55 |
| Dead Run | Suburban/urban | 1,414 | 13 | 1,786-4,629 | 249-336 | 176-211 | 101-391 |
| Carroll Park | Urban | 16,278 | 20 | 960-2,085 | 63-86 | 44-86 | 49-66 |
| Without roadways | |||||||
| Pond Branch | Forested | 32.3 | 0 | 3-6 | 3-8 | 3-4 | 2-3 |
| McDonogh | Agriculture | 7.8 | 0 | 5-8 | 4-5 | 4-5 | 5-7 |
Range in the maximum concentration of chloride from 1998 through 2003 during winter, spring, summer, and fall in the streams of the Baltimore LTER site.