Eczema or spongiotic dermatitis is a very general term. Most patients will not have occupational causes.
See this page for a definition of spongiotic dermatitis: http://www.dermnetnz.org/pathology/eczema-path.html
See this page from the Mayo Clinic on dermatitis: http://www.mayoclinic.org/diseases-conditions/dermatitis-eczema/basics/definition/con-20032183
According to Cecil Medicine, 24th edition:
"The more commonly encountered eczemas (Table 446-1) share similar histological characteristics. However, they have varying degrees of edema within the epidermis (spongiosis) and of infiltration with lymphocytes and macrophages in the superficial dermis."
The six types of eczema listed in table 446-1 are: nummular dermatitis, dyshidrosis, atopic dermatitis, seborrheic dermatitis, allergic contact dermatitis, and irritant contact dermatitis.
There is a useful table in the chapter on "Contact Dermatitis" in Textbook of Clinical Occupational and Environmental Medicine. Table 29.1.4 shows the Mathias criteria for probable occupational causation in terms of seven questions:
"Answering yes to at least four questions may provide adequate probability for workplace exposure."
The abstract of the original Mathias article is here: http://www.ncbi.nlm.nih.gov/pubmed/2523909
This is an abstract of a recent study assessing the Mathias criteria: http://www.ncbi.nlm.nih.gov/pubmed/?term=22578296
Recent study of occupational irritant contact dermatitis done in Denmark: http://www.ncbi.nlm.nih.gov/pubmed/?term=25302958
Recent study of occupational allergic contact dermatitis done in Denmark: http://www.ncbi.nlm.nih.gov/pubmed/?term=23948033
There are currently 1048 agents in Haz-Map that are potential skin sensitizers. For the most common ones, see this page: Click here.
Select "skin sensitizer." You can also limit the results by selecting one of the industrial processes.