L1 Source

US EPA RadNet + Safecast (ambient radiation measurements)

L1 source pull — radiation-observations from /api/radiation/v1/list-radiation-observations at 2026-08-24T07:16:03Z. Verbatim transform; never edit by hand.

field	value
observations	[{"baselineValue": 42.7, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": 1.3, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:PA:PHILADELPHIA:1787552940000", "location": {"latitude": 39.9526, "longitude": -75.1652}, "locationName": "Philadelphia", "observedAt": 1787552940000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 44, "zScore": 0.42}, {"baselineValue": 27.3, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": 1.7, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:HI:HONOLULU:1787552640000", "location": {"latitude": 21.3099, "longitude": -157.8581}, "locationName": "Honolulu", "observedAt": 1787552640000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 29, "zScore": 1.91}, {"baselineValue": 38.5, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": 0.5, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:TX:HOUSTON:1787552580000", "location": {"latitude": 29.7604, "longitude": -95.3698}, "locationName": "Houston", "observedAt": 1787552580000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 39, "zScore": 0.45}, {"baselineValue": 27.2, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": -0.2, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:WA:SEATTLE:1787552580000", "location": {"latitude": 47.6062, "longitude": -122.3321}, "locationName": "Seattle", "observedAt": 1787552580000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 27, "zScore": -0.19}, {"baselineValue": 68.3, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": 1.7, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:MA:BOSTON:1787552160000", "location": {"latitude": 42.3601, "longitude": -71.0589}, "locationName": "Boston", "observedAt": 1787552160000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 70, "zScore": 0.77}, {"baselineValue": 43.9, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": 0.1, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:NY:ALBANY:1787551440000", "location": {"latitude": 42.6526, "longitude": -73.7562}, "locationName": "Albany", "observedAt": 1787551440000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 44, "zScore": 0.05}, {"baselineValue": 30.1, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": -1.1, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:DC:WASHINGTON:1787551380000", "location": {"latitude": 38.9072, "longitude": -77.0369}, "locationName": "Washington, DC", "observedAt": 1787551380000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 29, "zScore": -0.23}, {"baselineValue": 32.2, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": -0.2, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:AK:ANCHORAGE:1787551260000", "location": {"latitude": 61.2181, "longitude": -149.9003}, "locationName": "Anchorage", "observedAt": 1787551260000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 32, "zScore": -0.15}, {"baselineValue": 29.7, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": 1.3, "freshness": "RADIATION_FRESHNESS_LIVE", "id": "epa:CA:SAN%20FRANCISCO:1787550780000", "location": {"latitude": 37.7749, "longitude": -122.4194}, "locationName": "San Francisco", "observedAt": 1787550780000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 31, "zScore": 0.98}, {"baselineValue": 42.1, "confidence": "RADIATION_CONFIDENCE_MEDIUM", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_EPA_RADNET"], "convertedFromCpm": false, "corroborated": false, "country": "United States", "delta": -4.1, "freshness": "RADIATION_FRESHNESS_RECENT", "id": "epa:IL:CHICAGO:1787333160000", "location": {"latitude": 41.8781, "longitude": -87.6298}, "locationName": "Chicago", "observedAt": 1787333160000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_EPA_RADNET", "sourceCount": 1, "unit": "nSv/h", "value": 38, "zScore": -0.77}, {"baselineValue": 68.6, "confidence": "RADIATION_CONFIDENCE_LOW", "conflictingSources": false, "contributingSources": ["RADIATION_SOURCE_SAFECAST"], "convertedFromCpm": true, "corroborated": false, "country": "Japan", "delta": 5.7, "freshness": "RADIATION_FRESHNESS_HISTORICAL", "id": "safecast:jp-fukushima:276622389", "location": {"latitude": 37.760893333333335, "longitude": 140.47587666666666}, "locationName": "Fukushima", "observedAt": 1769484538000, "severity": "RADIATION_SEVERITY_NORMAL", "source": "RADIATION_SOURCE_SAFECAST", "sourceCount": 1, "unit": "nSv/h", "value": 74.3, "zScore": 0}]
fetchedAt	1787555755833
epaCount	10
safecastCount	1
anomalyCount	0
elevatedCount	0
spikeCount	0
corroboratedCount	0
lowConfidenceCount	1
conflictingCount	0
convertedFromCpmCount	1
dataAvailable	true