South Houston Exposure Map
● Critical ● High ● Moderate
Major Asbestos Exposure Sites
| Facility | Industry | Risk Level | Est. Workers |
|---|---|---|---|
| Missouri-Pacific Railroad – South Houston Shops | Railroad maintenance / repair | High | ~1,500 peak |
| Sheffield Steel / Sheffield Division | Steel fabrication | High | ~1,200 peak |
| Commercial Construction – South Houston / Pasadena | Building construction | Moderate | ~2,000 peak concurrent |
| Gulf States Utilities – South Houston Area | Electric utility | Moderate | ~600 peak |
Railroad Workers: A Distinct Asbestos Exposure Category
Railroad maintenance workers — carmen, machinists, boilermakers, and shop craftsmen — were exposed to asbestos from multiple sources in repair shop environments: locomotive boiler insulation, brake shoe friction material, pipe insulation in shop buildings, and asbestos gasket material used in locomotive engine components. The Federal Employers’ Liability Act (FELA) governs railroad worker injury claims against railroad employers — a separate legal framework from standard asbestos product liability. Railroad workers have rights under both FELA (against their employer) and standard asbestos product liability (against the manufacturers of asbestos products used in railroad applications).
Additionally, many South Houston area workers who worked in commercial construction in the postwar era were exposed to asbestos-containing joint compound, floor tiles, ceiling tiles, spray fireproofing, and pipe insulation used in school, hospital, and commercial building construction in the rapidly expanding South Houston / Pasadena suburbs throughout the 1950s, 1960s, and early 1970s.