Radon susceptibility at the address point

radon3 fields3 of these fields open in the demo

Source: NGU/DSA national radon aktsomhet map
Geography: The address point
Reported stale after: 400 days
Access: Requires an API key granted this section
Contract version: 1
In packages: hazard_screen

What this does not say

Quoted verbatim from the section’s warnings field, exactly as the API returns it. They are not translated: a translation would show something other than what your response actually contains.

Screening class from geology and indoor-air measurements, not a measured radon level for this building. High/særlig høy means measurement is recommended; missing coverage is 'usikker', never low risk.
National aktsomhet map (NGU/DSA), NLOD. In 'høy aktsomhet' areas at least ~20% of dwellings are expected above 200 Bq/m³, but the actual level depends on construction and must be measured.

Fields

1 of 3 fields are value fields — the ones that decide whether a record actually says anything. The rest are context: identifiers, codes and timestamps. Fields marked “open” return values to anonymous callers; the rest require a key.

Field	Type	Role	Demo
aktsomhet_grad	string \| null	context	open
aktsomhet_grad_navn	string \| null	value	open
datauttaksdato	string \| null	context	open

Fetch this section

curl -H "X-API-Key: $APPROACH_API_KEY" \
  "https://api.approach.no/api/v1/addresses/285717643?include=radon"

# paginated, one section at a time
curl -H "X-API-Key: $APPROACH_API_KEY" \
  "https://api.approach.no/api/v1/addresses/285717643/sections/radon?limit=25"

Try it now

This is a real call against the public demo, from here. What appears below is what the API returned — not a sample.