CORD_Data paper_Pyrola.xlsx CanopoliLuisa CoulonFrederic WaglandStuart 2020 Complete dataset of Pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS), which was used to analyse the pyrolysis decomposition products of 10 plastic samples made up of fresh and excavated samples of different ages from 4 MSW landfill sites. The samples included a single polymer for fresh and excavated polyethylene (PE) and polypropylene (PP), and two types of mixed excavated plastic materials, sample A (PE, PP, polystyrene (PS)) and sample B (PE, PP, PS, polyethylene terephthalate (PET), polyvinyl chloride (PVC)).