Last updated on 29 Aug 2019 09:29 (cf. Authors)
Short description
NFR-Code | Name of Category | Method | AD | EF | Key Category 1 |
---|---|---|---|---|---|
5.D.1 | Domestic & Commercial Wastewater Handling | T1 | NS | D | no key category |
In category 5.D.1, NMVOC emissions from domestic and commercial wastewater handling are reported. The domestic section is covered by wastewaters of municipal origin (large centralised plants; ranging from 1,000 up to >100,000 resident values). The commercial section is covered by industrial and commercial wastewaters, co-treated in municipal wwt-plants.
Method
Emissions reported under this category are calculated using the Tier 1 approach of the EMEP/EEA Guidebook 2016 [1], where the emission factor (EF) is 15 mg/m³ wastewater (Part B, 5.D, chap. 3.2.2, Table 3-1, p. 7). This EF is multiplied with the total amount of wastewater (AD) treated in domestic and commercial wwt-plants, following the equation:
EM(NMVOC) = AD * EF (ibid., chap. 3.2.1).
Activity data
Total volumes of treated municipal wastewater are derived by the German statistical agency (Statistisches Bundesamt, Fachserie 19, Reihe 2.1.2) [2]. The data source is published on a three year basis with new data only for the respective year of the update. The availability of the data starts in 1991 with an exception for the following update, which was for 1995. Missing data are inter- or extrapolated
Emisson factors
See "Method"
Uncertainties
The AD from Statistisches Bundesamt have an uncertainty of ±3% whereas the uncertainty for the EF is -5/+50%.
Recalculations
Due to a review recommendation, emissions from domestic origin and septic tanks had to be removed from the estimation due to being decentralised technologies, thus recalculations were necessary.
1990 | 1995 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
2018 | 0.134 | 0.154 | 0.156 | 0.147 | 0.152 | 0.151 | 0.150 | 0.149 | 0.148 | 0.147 | 0.146 | - |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019 | 0.125 | 0.148 | 0.153 | 0.144 | 0.150 | 0.149 | 0.148 | 0.147 | 0.147 | 0.146 | 0.145 | 0.144 |
absolute change | -0.008 | -0.006 | -0.003 | -0.002 | -0.002 | -0.002 | -0.002 | -0.002 | -0.002 | -0.002 | -0.002 | - |
Planned improvements
Currently no improvements are planned.