Hazardous Area Sites
Data quality
How complete the data is, how we check it, and where it is still weak. The figures on this page come straight from the register and are refreshed automatically.
Figures as of 2 November 2026. Based on 14,800+ live sites. Site counts are rounded down. Groups with fewer than 20 sites are left out.
Field by field
For each field: which layer it belongs to, the share of live sites that have a value, where values come from, how often they are refreshed and the month a value was last written from a source.
| Field | Layer | Filled | Source | Updated | Last written |
|---|---|---|---|---|---|
| OpenStreetMap ID | Open map | 34% | OpenStreetMap | Monthly | November 2026 |
| Site name | Open map | 100% | OpenStreetMap name tag | Monthly | October 2026 |
| Latitude | Open map | 100% | OpenStreetMap geometry | Monthly | October 2026 |
| Longitude | Open map | 100% | OpenStreetMap geometry | Monthly | October 2026 |
| Country | Open map | 100% | Derived from the OpenStreetMap position | Monthly | October 2026 |
| Site type (coarse) | Open map | 100% | OpenStreetMap tags | Monthly | October 2026 |
| Operator (OpenStreetMap tag) | Open map | 98% | OpenStreetMap operator tag | Monthly | November 2026 |
| Industry | Enriched | 74% | Own classification | Ad hoc | August 2026 |
| Site subtype | Enriched | 1% | Own classification | Ad hoc | October 2026 |
| Pharma subtype | Enriched | 3% | Own classification | Ad hoc | n/a |
| Operating company | Enriched | 36% | Registers, operator publications, research | Nightly | October 2026 |
| Parent company | Enriched | 65% | Registers, LEI, research | Ad hoc | October 2026 |
| Local legal entity | Enriched | 3% | Company registers | Ad hoc | n/a |
| Street address | Enriched | 56% | Registers, geocoding | Ad hoc | November 2026 |
| Position precision | Enriched | 96% | Own metadata | Ad hoc | October 2026 |
| Facilities at site | Enriched | 92% | Research | Ad hoc | n/a |
| Description | Enriched | 55% | Research | Ad hoc | October 2026 |
| NAICS code | Enriched | 42% | US EPA FRS | Ad hoc | n/a |
| NAICS label | Enriched | 42% | US EPA FRS | Ad hoc | n/a |
| Website | Enriched | 61% | Research | Ad hoc | November 2026 |
| Company LinkedIn | Enriched | <1% | Research | Ad hoc | n/a |
| Site web page | Enriched | 31% | Research | Ad hoc | October 2026 |
| BSEE complex ID | Enriched | 2% | US BSEE | Ad hoc | n/a |
| BSEE operator | Enriched | 2% | US BSEE | Ad hoc | n/a |
| Operating status | Enriched | 75% | Operator and news sources | Nightly | November 2026 |
| Products (web) | Enriched | 31% | Operator publications | Nightly | October 2026 |
| Capacity | Enriched | 18% | Operator publications | Nightly | October 2026 |
| Employees (web) | Enriched | 6% | Operator publications | Nightly | October 2026 |
| Year built | Enriched | 10% | Operator publications | Nightly | October 2026 |
| Certifications (web) | Enriched | 3% | Operator publications | Nightly | October 2026 |
| Products | Enriched | 9% | Registers, operator publications | Ad hoc | October 2026 |
| Hazardous-area classification | Enriched | 43% | Seveso/COMAH registers, research | Nightly | October 2026 |
| Certifications | Enriched | <1% | Registers, research | Ad hoc | n/a |
| Process types | Enriched | <1% | Registers, research | Ad hoc | n/a |
| Confidence tier | Enriched | 100% | Own scoring | Nightly | n/a |
| Personnel on board | Enriched | 5% | BSEE, regulators, research | Nightly | October 2026 |
| Field workers | Enriched | 29% | Registers, operator reports, research | Nightly | November 2026 |
| Workforce estimate | Enriched | 15% | Own model | Nightly | November 2026 |
| Manned | Enriched | 2% | BSEE, research | Ad hoc | n/a |
| Attended | Enriched | 2% | BSEE, research | Ad hoc | n/a |
| Heliport | Enriched | 2% | BSEE | Ad hoc | n/a |
| Structure type | Enriched | 2% | BSEE, research | Ad hoc | n/a |
| Water depth | Enriched | 2% | BSEE | Ad hoc | n/a |
| Reserves | Enriched | 1% | Government data, research | Ad hoc | September 2026 |
| Reserves basis | Enriched | <1% | Government data, research | Ad hoc | July 2026 |
| Production | Enriched | 6% | Government data, research | Ad hoc | September 2026 |
| First production | Enriched | 2% | Government data, research | Ad hoc | September 2026 |
| Reserve life | Enriched | 1% | Derived | Ad hoc | September 2026 |
| Certification regime | Enriched | 84% | Jurisdiction rules | Ad hoc | n/a |
| Certification regime note | Enriched | 84% | Jurisdiction rules | Ad hoc | n/a |
| Turnaround interval (modelled) | Enriched | 82% | Own model | Ad hoc | n/a |
| Turnaround duration (modelled) | Enriched | 82% | Own model | Ad hoc | n/a |
| Turnaround basis | Enriched | 82% | Own model | Ad hoc | n/a |
| Photo | Enriched | 80% | Own capture, open imagery | Nightly | November 2026 |
| Photo credit | Enriched | 41% | Own capture, open imagery | Nightly | n/a |
| Photos | Enriched | <1% | Own capture, open imagery | Nightly | n/a |
| Photo (Google) | Enriched | 18% | Google Places | Ad hoc | October 2026 |
| Photo credit (Google) | Enriched | 18% | Google Places | Ad hoc | n/a |
| Photo (Wikimedia) | Enriched | 4% | Wikimedia Commons | Nightly | August 2026 |
| Photo (Wikimedia) | Enriched | 4% | Wikimedia Commons | Nightly | n/a |
| Photo licence | Enriched | 4% | Wikimedia Commons | Nightly | n/a |
| Photo author | Enriched | 4% | Wikimedia Commons | Nightly | n/a |
| Operator logo | Enriched | 29% | Operator website | Ad hoc | November 2026 |
| Operator logo source | Enriched | 29% | Operator website | Ad hoc | n/a |
| Switchboard phone | Enriched | 20% | Google Places, operator sites | Ad hoc | November 2026 |
| Added | Enriched | 100% | Own metadata | Per request | n/a |
Coverage by region
| Region | Sites | Share with workforce or classification |
|---|---|---|
| Europe | 6,100+ | 63% |
| North America | 4,470+ | 53% |
| Asia-Pacific | 1,620+ | 46% |
| Latin America | 1,080+ | 28% |
| Middle East | 690+ | 45% |
| Other | 520+ | 21% |
| Africa | 350+ | 44% |
Coverage by site type
| Site type | Sites | Share with workforce or classification |
|---|---|---|
| Oil gas | 6,770+ | 34% |
| Other | 4,240+ | 45% |
| Chemical | 3,160+ | 96% |
| Pharma | 590+ | 92% |
| Agri retail | 50+ | 100% |
How values are checked
- Every fact keeps its source. Each value in the enriched layer carries a citation you can open from the site record.
- Checks before a value goes live. New values pass validation rules first. Values that fail are held back, not published.
- Independent re-checks. Samples of researched values are checked again from the source, separately from the first pass.
- People review reports. Every record has a button to report an error or suggest a site. A person reviews each report.
Known limitations
- Coverage is uneven. It is strongest where public registers exist: the EU, the UK, the US, Norway, Canada and Australia. Elsewhere, records rely more on research and are thinner.
- Not every site has every field. Workforce in particular is unknown for many sites. When a value is unknown, the record says so. It is never filled in with a zero.
- Classification is mostly researched. Registers give Seveso and COMAH status. Zone 1 and Zone 2 classification usually comes from public documents and the type of site, not from the operator’s own hazardous-area drawings.
- Changes can lag. Closures, sales and new operators reach the register after they become public, sometimes months later.
- The open map layer is only as good as OpenStreetMap. Names, types and outlines come from volunteers and vary by region.
- Research can be wrong. Values are read from public sources and checked, but mistakes get through. Please report them.