In 2023, France recorded the highest chemical oxygen demand (COD) in household wastewater in Europe at 6.31 million kilograms of O2 per day. Czechia followed with 1.29, and Austria with 1.06. Slovakia reported 0.56, Lithuania 0.39, and Latvia 0.18 million kilograms. Between 2022 and 2023, Austria saw a 0.71% decrease, Slovakia an increase of 0.84%, Lithuania decreased by 0.42%, and Latvia had the most significant decline of 2.34%. Over the past five years, a compound annual growth rate indicates modest fluctuations across these countries.
Future trends to monitor include technological advancements in wastewater treatment and heightened environmental regulations, which may significantly impact the COD levels in European household wastewater. Additionally, potential socio-economic changes influencing population growth and household behaviors could alter wastewater characteristics in the coming years.
Top countries in Chemical Oxygen Demand in Wastewater Generated by Households by Country
| # | 6 Countries | Thousand Kilograms of O2 Per Day | Last Year | YoY | 5-years CAGR | |
|---|---|---|---|---|---|---|
| 1 | 1 France | 6,310 | 2021 | View data | ||
| 2 | 2 Czechia | 1,290 | 2023 | |||
| 3 | 3 Austria | 1,060 | 2023 | -0.98% | -0.71% | View data |
| 4 | 4 Slovakia | 560.41 | 2023 | +0.59% | +0.84% | View data |
| 5 | 5 Lithuania | 392.16 | 2023 | +0.25% | -0.42% | View data |
| 6 | 6 Latvia | 180.83 | 2023 | -3.03% | -2.34% | View data |
