What are the gas manufacturing byproducts and residues?
A – Tar was the primary byproduct of the gas manufacturing process and was often sold to other manufacturers. Tar is a component of several products we use today, including dyes, some shampoos, driveway sealants, and asphalt roofing and paving materials. Residual ashes, cinders and tar may be found on the ground surface or below ground in storage wells and bases of the gas holders.
