Page 94 - Materials Chemistry, Second Edition

Part 2a: Guide 81

Main choices and guidelines

Method status Characterisation method/factor Table in Part 2b
baseline high NOx POCP 4.3.9.1
alternative 1 MIR 4.3.9.2
alternative 2 MOIR 4.3.9.2
alternative 3 EBIR 4.3.9.2
alternative 4 low NOx POCP 4.3.9.3
additional – –
variant – –

Example (for baseline)

impact category photo-oxidant formation
LCI results emissions of substances (VOC, CO) to air (in kg)
characterisation model UNECE Trajectory model
category indicator tropospheric ozone formation
characterisation factor photochemical ozone creation potential (POCP) for each
emission of VOC or CO to the air (in kg ethylene equivalents/kg
emission)
unit of indicator result kg (ethylene eq)

4.3.3.10 Acidification

Topic
Acidifying pollutants have a wide variety of impacts on soil, groundwater, surface waters,
biological organisms, ecosystems and materials (buildings). Examples include fish mortality
in Scandinavian lakes, forest decline and the crumbling of building materials. The major
acidifying pollutants are and Areas of protection are the natural environment,
the man-made environment, human health and natural resources.

Main choices and guidelines
Method status Characterisation method/factor Table in Part 2b
baseline average European AP 4.3.10.1
alternative generic AP 4.3.10.2
additional region (site) dependent AP 4.3.10.3
variant see Part 3 –

Example (for baseline)

impact category acidification
LCI results emissions of acidifying substances to the air (in kg)
characterisation model RAINS10 model, developed at IIASA, describing the fate and
deposition of acidifying substances, adapted to LCA
category indicator deposition/acidification critical load
characterisation factor acidification potential (AP) for each acidifying emission to the air
(in kg equivalents /kg emission)
unit of indicator result kg