Delaware City Refinery to emit elevated sulfur dioxide during repairs 6 ABC / WPVI-TV 04:58 Fri, 08 May
Delaware City Refinery will have higher sulfur dioxide emissions during upcoming repairs Delaware Public Media 23:30 Thu, 07 May
Del. refinery likely to emit more sulfur dioxide for 1 month, officials say CBS Philadelphia 18:35 Thu, 07 May
Ecovyst Announces Agreement to Acquire Calabrian Sulfur Dioxide & Sulfur Derivatives Business PR Newswire (Press Release) 11:50 Fri, 01 May
