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sector:ippu:mineral_industry:construction_demolition:start [2026/03/16 10:53] – [Recalculations] kludtsector:ippu:mineral_industry:construction_demolition:start [2026/03/18 13:53] (current) – [Emission factors] kludt
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 ==== Emission factors ==== ==== Emission factors ====
  
-The emission factors used are results of the adaptation of EMEP/EEA Guidebook defaults (EMEP/EEA, 2023) [(EMEPEEA2023)].+The emission factors used are results of the adaptation of EMEP/EEA Guidebook defaults (EMEP/EEA, 2023) [(EMEPEEA2023)], for our inventory so-called 'apllied emission factors' with following parameters: 
 +\\ 
 +- pollutant-specific emission factor, not corrected for soil moisture and silt content (kg of emitted pollutants/m² affected area/year), 
 +\\ 
 +- average affected area as product of number of buildings constructed multiplied with conversion factor (average affected area per building), 
 +\\ 
 +- duration of construction activity from default values (EMEP/EEA, 2023)[(EMEPEEA2023)], 
 +\\ 
 +- specification of precipitation-evaporation index and soil silt content as constants, 
 +\\ 
 +- efficiency of emission control measures at the moment see FAQ below. 
  
 __Table 1: Overview of apllied emission factors, in [kg/m<sup>2</sup> * y], for roads in [tons/km<sup>2</sup> * y]__ __Table 1: Overview of apllied emission factors, in [kg/m<sup>2</sup> * y], for roads in [tons/km<sup>2</sup> * y]__
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 | :::                           |  PM<sub>2.5</sub>  |  50.2      |  constant over time  | | :::                           |  PM<sub>2.5</sub>  |  50.2      |  constant over time  |
  
-However, further assumptions were necessary in order to calculate: 
- 
-For example, the emission factors are adapted with correction factors of (i) 0.20 for the moisture level and (ii) 2.22 for the silt content. 
-  
-The assumption about the duration of the construction activity uses default values from (EMEP/EEA, 2023)[(EMEPEEA2023)]: 
  
-__Table 2: default duration of different construction activities, in years [y]__ 
-^ Type of building                                   ^^  estimated duration       ^^ 
-| Construction of houses (single and two family)     ||  0.5 (6 months)                 || 
-| Construction of apartments (all types)             ||  0.75 (9 months)                || 
-| Non-residential construction                       ||  0.83 (10 months)               || 
-| Road construction                                  ||  1 (12 months)                  || 
  
  
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 [{{:sector:ippu:mineral_industry:EM_2A5b_since_1990.PNG|**Emission trends in NFR 2.A.5.b**}}] [{{:sector:ippu:mineral_industry:EM_2A5b_since_1990.PNG|**Emission trends in NFR 2.A.5.b**}}]
  
-Note for all: small change for 2023 
  
 Notes on PCB emissions from old buildings are provided in chapter [[sector:ippu:pops_and_hm_consumption:start|2.K - Consumption of POPs and Heavy Metals]] of this report. Notes on PCB emissions from old buildings are provided in chapter [[sector:ippu:pops_and_hm_consumption:start|2.K - Consumption of POPs and Heavy Metals]] of this report.