Particulate Matter Formation
An impact category for the health damage caused by fine particles in the air, emitted directly or formed from gases such as sulphur dioxide, nitrogen oxides and ammonia. It is…
Glossary Terms
Working definitions for the terms that recur across this project: the circular economy, water resource recovery and reuse, and the life cycle methods -- LCA, LCC and S-LCA -- that AWARE combines into one sustainability assessment. They are written for a general reader rather than for specialists.
Showing entries beginning with P.
P
Photochemical Ozone Formation
The formation of ground-level ozone -- summer smog -- when nitrogen oxides and volatile organic compounds react in sunlight. Ozone at ground level irritates the lungs and damages crops, unlike…
Primary and Secondary Data
Primary data are measured or calculated directly from the process being studied -- meter readings, dosing logs, lab analyses of effluent quality. Secondary data come from elsewhere: databases, literature, industry…
Product System
The set of connected processes, linked by flows of products and services, that together deliver the function being studied. For a water reuse scheme it includes the treatment plant, but…
Definitions are written for this site in plain language. The selection of terms was checked against the Life Cycle Initiative terminology (UNEP), the ILCA Common Glossary and the SimaPro LCA glossary, and against ISO 14040/14044, ISO 14046, ISO 14075 and the UNEP Guidelines for Social Life Cycle Assessment (2020).
