In 2023, Austria led with a Chemical Oxygen Demand (COD) in urban wastewater of 98.73 thousand kilograms of O2 per day, experiencing a slight year-on-year increase of 1.05%. Conversely, the Czech Republic and Slovakia saw declines of 0.71% and 0.41%, with COD values of 64.43 and 23.85 thousand kilograms, respectively. Lithuania and Latvia had similar decreases in COD, showing values of 19.8 and 18.54 thousand kilograms, while Costa Rica observed a notable expansion of 15.21% with a COD of 13.77 thousand kilograms per day.
Future trends to watch include potential policy changes affecting wastewater treatment standards and technological advancements in waste processing that may influence COD levels. Emerging markets like Costa Rica display significant volatility, which could reflect broader regional economic and infrastructure developments. Monitoring environmental regulations and urbanization rates will be essential for forecasting long-term trends in COD emissions across countries.
Top countries in Chemical Oxygen Demand in Urban Wastewater Discharged by Country
| # | 6 Countries | Thousand Kilograms of O2 Per Day | Last Year | YoY | 5-years CAGR | |
|---|---|---|---|---|---|---|
| 1 | 1 Austria | 98.73 | 2023 | +0.87% | +1.05% | View data |
| 2 | 2 Czech Republic | 64.43 | 2023 | -1.31% | -0.71% | View data |
| 3 | 3 Slovakia | 23.85 | 2023 | -0.74% | -0.41% | View data |
| 4 | 4 Lithuania | 19.8 | 2023 | -0.34% | -1.12% | View data |
| 5 | 5 Latvia | 18.54 | 2023 | -0.91% | +0.64% | View data |
| 6 | 6 Costa Rica | 13.77 | 2023 | +9.47% | +15.21% | View data |
