TYB!
Phosgene in the thermal decomposition products of poly(vinyl chloride): Generation, detection and measurement
Toxicity of the Pyrolysis and Combustion Products of Poly(Vinyl Chlorides): A Literature Assessment.
https://www.nist.gov/publications/toxicity-pyrolysis-and-combustion-products-polyvinyl-chlorides-literature-assessment#:
https://pubmed.ncbi.nlm.nih.gov/7464068/