Job Task Name
Work for railroad in 1960s or 1970s as engineer, fireman, conductor, brakeman, or hostler
Comments
First-generation diesel engines were introduced in the 1940s and 1950s. Emissions decreased with second-generation engines in the 1960s and third-generation engines in the 1980s. COPD mortality was associated with years of work in jobs exposed to diesel exhaust. Selected workers were 40-64 years old in 1959 and had 10-20 years of prior railroad work. [Hyperlink]