Duisburg vs Dortmund
Water hardness comparison — how the two cities differ and what it means for your home.
HarderFull Duisburg data →
Duisburg
germany
169mg/L
Hard Water
11.83°e
Hard
Base Unit (CaCO3): 169 mg/LLocal Unit
Dortmund
germany
159mg/L
Hard Water
11.13°e
Hard
Base Unit (CaCO3): 159 mg/LLocal Unit
Side-by-Side Impact
| Impact Area | Duisburg | Dortmund |
|---|---|---|
| Limescale buildup | Moderate — monthly descaling | Moderate — monthly descaling |
| Boiler/heating risk | Monitor annually | Monitor annually |
| Dishwasher salt setting | High salt setting (3–5) | High salt setting (3–5) |
| Skin & hair impact | Moderate risk | Moderate risk |
| Detergent usage | +15–25% more | +15–25% more |
Key Findings
Hardness Difference: 10 mg/L
The difference between Duisburg and Dortmund is relatively small. Both cities fall into the same hardness category and would use similar appliance settings and treatment products.
Compare With Other Cities
Duisburg vs IstanbulDuisburg vs MoscowDuisburg vs ParisDuisburg vs LondonDuisburg vs New YorkDuisburg vs MadridDuisburg vs BarcelonaDuisburg vs AnkaraDortmund vs IstanbulDortmund vs MoscowDortmund vs ParisDortmund vs LondonDortmund vs New YorkDortmund vs MadridDortmund vs BarcelonaDortmund vs Ankara