Hi Rengifo,
I've done it for EPER and Australia's
NPI.
I'm currently working on the US TRI but it is dependent on my available spare time. The TRI is
already available in Google Earth, but not with the visual comparison of emission levels (excepting Arizona). IMHO I think that my method of comparison is superior.

In order for a country to join the
OECD it must have a
pollutant release and transfer register. I'd like to do them all, but not every country presents its data in an accessible format and there are well known issues surrounding data quality.