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View of Shell Polymers Monaca’s ECU (ethane cracking unit) from across the Ohio River

Fence Line Monitoring (FLM) Program

Shell Polymers Monaca conducts bi-weekly passive sampling for chemicals of potential concern, including benzene, 1,3-butadiene, n-hexane, naphthalene, and toluene. Shell has installed Passive Air Monitoring Systems (PAMS) at 20 locations on-site, and four Continuous Air Monitoring Systems (CAMS) on its property.

Access the monitoring data below:

Passive Air Monitoring System (PAMS)

Supporting Documents

Continuous Air Monitoring System (CAMS)

Meteorological Data

Equipment Downtime

Map of Monaca Refinery monitoring sites.

View a full-sized map of Shell Polymers Monaca Monitoring Sites (PDF)