2.D.3.b Road Paving

Last updated on 07 Mar 2017 10:01 (cf. Authors)

2.D.3.b - Road Paving

Short description
Currently, the report tables list produced quantities of mixed asphalt products (from stationary installations only) and NMVOC, NOx and SO2 emissions caused of this. Only emissions from asphalt production are reported. Figures relative to emissions released during laying of asphalt have not been examined.

Method
Activity data
The applicable quantity of mixed asphalt products produced (activity rate) has been taken from communications of the Deutscher Asphaltverband (DAV; German asphalt association).
Emission factor
Emission factors have been determined country-specifically, pursuant to Tier 2. For determination of emission factors for emissions measurements from over 400 asphalt-mixing plants, made during the period 1989 through 2000, were used. The majority of the emissions occur during drying of pertinent mineral substances. Almost all of the NMVOC emissions originate in the organic raw materials used, and they are released primarily in parallel-drum operation, as well as from mixers and loading areas. On average, about 50% of the NOx and SO2 involved come from the mineral substances (proportional process emissions). CO emissions are calculated solely in connection with fuel inputs.

pollutant Name of Category EF unit Trend
NMVOC Production of mixed asphalt 0.030 kg/t constant
NOx Production of mixed asphalt 0.015 kg/t constant
SOx Production of mixed asphalt 0.030 kg/t constant
TSP Production of mixed asphalt 0.006 kg/t constant
PM10 Production of mixed asphalt 0.0057 kg/t constant
PM2.5 Production of mixed asphalt 0.003 kg/t constant

Recalculations

Recalculation activities were not necessary.

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