Damage caused by natural gas

I am looking for any information on the possible damage to artifacts
that have been subjected to long term exposure to natural gas (the
type used for heating with hydrogen disulfide added for smell).
There is nothing in the literature that I have been able to find.
Are there long term adverse effects that can damage furniture
finishes, even if they are removed and replaced?

Craig Deller
Deller Conservation
Geneva, Illinois USA


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                  Conservation DistList Instance 24:4
                   Distributed: Sunday, June 13, 2010
                        Message Id: cdl-24-4-025
                                  ***