Data field · Event · Geographic area

Population exposure estimate

The estimated resident population within a stated event buffer or source-selected exposure radius, pinned to radius, population surface, event methodology, date, and model version.

Who carries it ↓
3Data sources
2Providers
2Free to access

Sources that carry it

3 sources
Armed Conflict Location & Event Data …
ACLED Event Data

Global event-level living dataset of reported political violence, demonstrations (including protests and riots), and selected strategic developments. Available through an authenticated API in JSON, CSV, and XML and through account-gated export/download surfaces, with arbitrary country, administrative-area, location, date, taxonomy, actor, and other filters. Event rows are revised as better information appears; row timestamp, response update metadata, and a coordinated deleted-event endpoint support refreshes, but ACLED no longer publishes formal dataset versions after Version 8. This Source excludes CAST forecasts, Trends risk intelligence, alerts, Explorer summaries, and other modeled products. It is not a verified property-loss record: property effects are explicit only where the taxonomy or notes report them.

Paid APIFull file Global 12 fields
U.S. Environmental Protection Agency
UST Finder Md Hist LUST

EPA's national UST Finder ArcGIS FeatureServer (Releases layer), server-side filtered to Maryland releases reported before 1999-01-01 — the frozen pre-1999 slice of MDE's legacy 'Recovery Sites Database,' distinct from MDE's live OCP case system (already covered by md_mde__ocp_case_search). 4,543 rows, no auth, paginated via resultOffset/resultRecordCount. Note: this data overlaps with the separately-scoped us_epa__ust_finder source — both draw from what is verifiably the same underlying UST Finder Releases dataset (published via two distinct-but-data-identical ArcGIS items), and this Maryland/pre-1999 slice is fully reproducible by filtering us_epa__ust_finder's fetched output. Kept as an isolated single-attribute source per the developer's explicit decision (Integration 216) rather than folded into the multi-attribute us_epa__ust_finder source.

Free API Subnational 13 fields
U.S. Environmental Protection Agency
UST Finder Nj LUST

EPA's national UST Finder ArcGIS FeatureServer (Releases layer, item US_Underground_Storage_Tank_2019), server-side filtered to State='New Jersey' — 16,816 leaking underground storage tank (LUST) release records covering New Jersey's full release history regardless of status (4,672 Open, 12,144 No Further Action/closed). This is a NJ-filtered slice of EPA's UST Finder Releases dataset, not a source published directly by NJDEP; NJDEP's own DataMiner LUST portal was investigated first and abandoned due to an hCaptcha wall with no programmatic bypass. Note: this data has been verified to overlap byte-for-byte (identical LUST_ID sets) with the separately-scoped us_epa__ust_finder source, which draws from a newer-but-data-identical ArcGIS item (UST_Finder_Feature_Layer_2). Kept as a standalone single-attribute source per established developer precedent (Integrations 216/294) rather than folded into the multi-attribute source.

Free API Subnational 13 fields

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