the re(SPECIATE) sysdata, a local versions of SPECIATE, the EPA's repository of organic gas and particulate matter (PM) speciation profiles of air pollution sources.
sysdataA (long) list, containing:
The main data.frame of profile-specific meta-data,
with one row per profile, key term PROFILE_CODE.
The main data.frame of individual record meta-data,
with one row per species in each profile, key terms PROFILE_CODE
and SPECIES_ID linking PROFILES and
SPECIES_PROPERTIES.
The main data.frame of species-specific
meta-data, with one row per species, key term SPECIES_ID.
The data.frame linking profile and
reference meta-data, one row per references per profile, key terms
PROFILE_CODE and REF_Code.
The main data.frame of references for profile
source meta-data, one row per reference, key term REF_Code.
Currently not documented.
https://www.epa.gov/air-emissions-modeling/speciate
Simon, H., Beck, L., Bhave, P.V., Divita, F., Hsu, Y., Luecken, D., Mobley, J.D., Pouliot, G.A., Reff, A., Sarwar, G. and Strum, M., 2010. The development and uses of EPA SPECIATE database. Atmospheric Pollution Research, 1(4), pp.196-206.