Sulfur dioxide is a byproduct of refining fossil ... Updated 5:50 p.m. May 2, 2023: This story has been updated to correct information about Suncor’s fenceline monitoring program.

An equipment failure causing the Delaware City Refinery to emit sulfur dioxide above permitted levels is expected to take two weeks to fix, according to fuel company that operates it, causing concern ...

Industrial waste gas — known as flue gas — often contains sulfur compounds which, when burned, release dangerous sulfur ...

Sulfur is a substance frequently discovered in volcanic regions and used to produce particular kinds of weaponry in Ark Genesis Part 2. The crystal-like formations are off-white or yellowish ...