CPM is nearly useless because it doesn’t tell you what type of radiation… But for couple generic references, background radiation is usually about 60 cpm, and an international flight can be about 800 cpm.
So again, cpm is a useless metric without other context. It’s just the raw number of “hits” on the detector from any source it detects. Some particles are basically harmless, others not so much.
CPM is nearly useless because it doesn’t tell you what type of radiation… But for couple generic references, background radiation is usually about 60 cpm, and an international flight can be about 800 cpm.
So again, cpm is a useless metric without other context. It’s just the raw number of “hits” on the detector from any source it detects. Some particles are basically harmless, others not so much.