4 out of 5 workers (80%) showed lung damage linked to asbestos exposure

Population: Bethlehem Steel's Baltimore shipyard workers · late 1970s

86% of ship repair workers, including those not directly handling asbestos, developed asbestosis

Population: ship repair workers · unknown

Sparrows Point Shipyard listed as EPA Superfund site (CERCLIS ID MD0000605049). Contaminants of concern include asbestos in building materials and soils. ROD signed 2004. Site operated by Bethlehem Steel Corporation; shipbuilding operations 1890–2012.

Population: Site-wide environmental record; not a worker cohort · 1890–2012

Limitation: Environmental record documents site contamination, not worker exposure dose. Asbestos listed as COC in building materials and soils per EPA SEMS. Separate from Bethlehem Steel Quincy MA and San Francisco CA yards.

Bethlehem Steel Corporation Sparrows Point facility (3,100-acre Patapsco River peninsula, Baltimore Harbor) subject to EPA RCRA Corrective Action; 1997 Consent Decree with EPA and Maryland Department of the Environment; contaminants include shipyard wastes, heavy metals, PAHs, coal tar, and oils from more than 100 years of steelmaking and shipbuilding operations.

Limitation: RCRA record covers the combined steel mill and shipyard complex; asbestos is not listed as a named primary contaminant in the RCRA record. Shipyard operations (1889–1997) were co-located with the steel mill. Verification report found no named-yard cohort study or NIOSH HHE specific to Sparrows Point shipyard workers.

Bethlehem Steel shipyards included in landmark U.S. shipyard asbestos disease survey documenting mesothelioma and lung cancer excess across the industry

Population: U.S. shipyard workers including Bethlehem Steel facilities · WWII era through 1970s

Limitation: Multi-yard survey; does not name individual Bethlehem Steel yards separately