Discovery / map of subjects
Topic map
Page and document embeddings group records by subject. Region area represents pages; boxes and dates trace how a topic spreads across the collection. This is a map of subjects, never of people.
Machine-clustered topics and assignments, not a definitive index. Select a topic to zoom into its sub-topics, then a sub-topic to see its documents.
GCMS chemical analysis and organic compound testing64277 pages · 5113 documentsGas chromatography-mass spectrometry laboratory analysis results for environmental samples, including detection of organic compounds and unknown substances. · Boxes DEP Box 68, DEP Box 14, DEP Box 64, DEP Box 57 · Click to zoom into sub-topicsAsbestos and environmental inspections of lower Manhattan buildings28090 pages · 3887 documentsPost-9/11 asbestos surveys, environmental testing reports, and Department of Environmental Protection inspections of buildings near the World Trade Center site. · Boxes DEP Box 01, DEP Box 45, DEP Box 49, DEP Box 34 · Click to zoom into sub-topicsHVAC systems evaluation and indoor air quality testing21508 pages · 2777 documentsPost-9/11 environmental permits, scopes of work, and correspondence regarding heating, ventilation, and air conditioning system inspections and indoor air contamination assessment. · Boxes DEP Box 05, DEP Box 11, DEP Box 43, DEP Box 26 · Click to zoom into sub-topicsEnvironmental permits and stipulations for lower Manhattan sites13355 pages · 3052 documentsPermits, permit conditions, and correspondence regarding environmental compliance at properties in lower Manhattan following 9/11. · Boxes DEP Box 42, DEP Box 43, DEP Box 09, DEP Box 03 · Click to zoom into sub-topicsHeavy metals ICP-MS analysis and extraction testing12135 pages · 936 documentsLaboratory analytical results for inductively coupled plasma mass spectrometry testing of environmental samples for lead, mercury, arsenic, and selenium. · Boxes DEP Box 58, DEP Box 59, DEP Box 66, DEP Box 24 · Click to zoom into sub-topicsWorld Trade Center environmental testing and permits10834 pages · 3242 documentsEnvironmental inspections, air quality testing, and regulatory permits for lower Manhattan buildings following 9/11. · Boxes 7DCAS, DEP Box 39, DEP Box 45, DEP Box 47 · Click to zoom into sub-topicsOrganic contaminant and volatile organic compound testing records7269 pages · 520 documentsLaboratory chain of custody records and chemical analysis results for soil, water, and environmental samples testing for PCBs, phthalates, and volatile organic compounds. · Boxes DEP Box 62, DEP Box 61, DEP Box 19, DEP Box 58 · Click to zoom into sub-topicsConstruction permits and HVAC system design for 7 World Trade Center6180 pages · 2767 documentsPermits, cost estimates, and environmental compliance documentation for building systems and construction at 7 WTC. · Boxes 7DCAS, DEP Box 05, DEP Box 56, DEP Box 07 · Click to zoom into sub-topicsHexachlorocyclopentadiene and organic compound analysis5856 pages · 855 documentsLaboratory analysis records for persistent organic pollutants and synthetic compounds, October–December 2001. · Boxes DEP Box 20, DEP Box 58, DEP Box 30 · Click to zoom into sub-topicsAsbestos and lead program training and certification records1890 pages · 296 documentsDepartment of Environmental Protection documentation of staff training, certification, and inspections for asbestos and lead hazard management. · Boxes DEP Box 32, DEP Box 06 · Click to zoom into sub-topics
Machine extraction can misread a scan. Check the source page. Stored confidence scores are extractor outputs, not a guarantee of accuracy; regex matches currently carry 1.00.