Normalized potential impacts of the food waste composting system in HongKong (Scenario B1).
GW100: global warming (100 years);
AC: acidification; NE:nutrient enrichment;
POF: photochemical ozone formation;
OD: ozone depletion;
ETw: ecotoxicity in water;
ETs: ecotoxicity in soil;
HTa: human toxicity via air;
HTw:human toxicity via water;
HTs: human toxicity via soil;
SETw: stored ecotoxicity inwater;
SETs: stored ecotoxicity in soil.