I believe the owners decided that they might not be able to recover the costs for all the pollution control equipment over time so they decided to retire the facility. (pragmaticenvironmentalistofnewyork.blog)
This might be a good way to help cut it down, along with other improvements such as mandated better engines and emission control equipment and low - sulfur fuels. (treehugger.com)
• Developed water, air, and soil quality control equipment. (resume-now.com)