MMWR: Morbidity and Mortality Weekly Report: Surveillance Summaries, November 3, 2017 [open pdf - 162KB]
Alternate Title: Occupational Exposure to Vapor-Gas, Dust, and Fumes in a Cohort of Rural Adults in Iowa Compared with a Cohort of Urban Adults
"Many rural residents work in the field of agriculture; however, employment in nonagricultural jobs also is common. Because previous studies in rural communities often have focused on agricultural workers, much less is known about the occupational exposures in other types of jobs in rural settings. Characterizing airborne occupational exposures that can contribute to respiratory diseases is important so that differences between rural and urban working populations can be assessed."
Morbidity and Mortality Weekly Report: http://www.cdc.gov/mmwr/index.html/
MMWR: Morbidity and Mortality Weekly Report (November 3, 2017), v.66 no.21