About Coridum
What Coridum is
Coridum builds indoor-environment monitoring: sensor devices and a digital service which turn measurements and peer-reviewed evidence into plain answers about particles, gases, humidity and radiation indoors.
The Knowledge section of this site is the open part of that work. It publishes what the published literature, the standards and the exposure limits actually say about indoor environments, with every number traceable to the document it came from.
Who publishes this
This site and the Coridum Knowledge library are published by:
Codeset Group FZE
Al Shmookh Business Center, One UAQ, UAQ Free Trade Zone,
Umm Al Quwain, United Arab Emirates
Licence no. 3859 · coridum@coridum.com
Coridum products and services are represented in other regions through local companies — Rearden Steel s.r.o. in Slovakia and Coridum Limited in Hong Kong. Those companies are local representations; they do not publish this site or the library.
Who writes and reviews the content
Filip Križko
Specialist, systems and content
Filip is an electronics engineer, a graduate of the Faculty of Electrical Engineering and Information Technology of the Slovak University of Technology in Bratislava, where he earned the degree of Ing. — the Slovak engineering degree at master's level — in the field of electronics.
He is a specialist member of the team that designs the Coridum system and its content. He brings extensive experience in data management and in building customer portals, and his long-standing professional focus is electromagnetic radiation.
How the library is built
Every number on this site is traceable to a numbered finding extracted from a cited primary source. The method — how findings are extracted, verified and combined into claims — is described in How we build this library.
Contact
Write to coridum@coridum.com. The postal address of the publisher is given above.
Corrections
If a number, a citation or a statement on this site is wrong, please tell us at coridum@coridum.com and say which page it is on. We check it against the source it came from and correct it. Every page carries the date on which it was last changed, and the identifier of every record we cite stays the same after a correction, so the correction is visible rather than hidden.