Documenting ‘dirty’ jobs: miners at work

Earl Dotter has been photographing workers since the 1960s – here are some of his photos from the early 70s of American coal miners and the health problems caused by their working conditions.

See the whole series: http://www.npr.org/blogs/pictureshow/2012/07/06/156386882/documenting-dirty-jobs-miners-at-work?ft=1&f=1143