{ "model": { "rank": 4298, "code": "thing-q104541", "model_id": "vr.tr.aerosol", "name": "aerosol", "purpose": "Let an agent reason about aerosols by particle size, composition and source, which decide their health effects, climate effects and behaviour.", "family": "Thing Registry", "category": "Physical world and living systems", "status": "research-draft", "kind": "thing", "plane": "PHY", "domain": "PHY.FLW", "industry": "", "version": "", "url": "/models/thing/q104541/", "tier": 2, "score": 76, "payload": { "layer": "wikidata", "aliases": [ "Cooking spray", "PAM", "suspension aerosol", "droplet nucleus", "salty aerosol", "Gunshot residue", "secondary organic aerosol", "Test aerosol", "bioaerosol", "Solid aerosols", "liquid aerosol" ], "aliasCount": 11, "merged": 11, "knownIn": 76, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.aerosol", "source": { "dataset": "wikidata", "item": "Q104541", "url": "https://www.wikidata.org/wiki/Q104541", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-11T04:35:51Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 1, "engine": "claude" }, "metaModel": { "id": "THING-Q104541", "registryId": "vr.tr.aerosol", "name": "aerosol", "version": "0.2.0-wave.1", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.FLW" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q104541/", "model": { "registry_id": "vr.tr.aerosol", "name": "aerosol", "purpose": "Let an agent reason about aerosols by particle size, composition and source, which decide their health effects, climate effects and behaviour.", "definition": "A suspension of fine solid particles or liquid droplets in a gas, such as mist, smoke, dust, haze or a spray.", "what_it_is_for": "Explaining air quality, disease transmission, clouds, climate effects and spray products.", "affordances": [ "measure it, by particle counters and filters as PM10 and PM2.5", "generate it, with spray cans, nebulisers and industrial processes", "filter it, with masks, filters and ventilation", "model it, in air quality and climate models" ], "distinguishing_features": [ "A two-phase system: particles in a gas", "Behaviour depends strongly on particle size", "Includes both natural and human-made sources", "Aerosol spray cans are one product use of the term" ], "appearance": "Haze, smoke, mist or a visible spray; fine aerosols can be invisible.", "visual_identification": [ "Reduced visibility and haze", "Visible plumes of smoke or spray", "Many harmful aerosols are too fine to see" ], "physical_properties": [ { "quantity": "particle diameter", "typical_range": "0.001-100", "unit": "micrometres", "note": "PM2.5 is below 2.5 micrometres" }, { "quantity": "residence time in air", "typical_range": "seconds to weeks", "unit": "time", "note": "fine particles stay aloft longest" } ], "families_and_kinds": [ "by phase: liquid droplets, solid particles", "by source: natural (sea salt, dust, volcanic), anthropogenic (combustion, industry)", "primary and secondary aerosols", "bioaerosols and respiratory aerosols" ], "related_models": [ { "relation": "includes", "target": "fog and smoke", "why": "fog is a liquid aerosol, smoke a combustion aerosol" }, { "relation": "affects", "target": "air quality and health", "why": "fine particles are major pollutants" }, { "relation": "affects", "target": "climate", "why": "aerosols scatter light and seed clouds" }, { "relation": "is filtered by", "target": "mask and air filter", "why": "protective equipment" } ], "identifiers": [], "standards_and_regulation": [ "WHO air quality guidelines for PM2.5 and PM10", "EU Ambient Air Quality Directive", "Occupational exposure limits for airborne particles", "EU Aerosol Dispensers Directive for spray cans" ], "failure_modes_and_hazards": [ "Respiratory and cardiovascular harm from fine particles", "Airborne disease transmission", "Flammable propellants in aerosol cans", "Reduced visibility for transport" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "composition-and-size", "name": "Composition and size", "description": "What the particles are and how big.", "rationale": "Size and composition decide behaviour and harm.", "layers": [ { "id": "size", "name": "Size distribution", "description": "Particle diameters.", "findings": [ { "id": "size-finding", "name": "Size data", "description": "The size distribution measured.", "questions": [ { "text": "What is the particle size distribution?", "kind": "measurement" }, { "text": "What fraction is below 2.5 micrometres?", "kind": "measurement" } ] } ] }, { "id": "composition", "name": "Composition", "description": "Chemical and biological content.", "findings": [ { "id": "composition-finding", "name": "Composition data", "description": "The chemical make-up.", "questions": [ { "text": "What are the particles made of?", "kind": "measurement" }, { "text": "Which components are toxic?", "kind": "boundary" } ] } ] } ] }, { "id": "source-and-transport", "name": "Source and transport", "description": "Where it comes from and where it goes.", "rationale": "Sources and transport explain exposure.", "layers": [ { "id": "source", "name": "Source", "description": "Natural or human-made.", "findings": [ { "id": "source-finding", "name": "Source attribution", "description": "The sources contributing.", "questions": [ { "text": "What are the main sources of this aerosol?", "kind": "provenance" }, { "text": "How was the attribution made?", "kind": "provenance" } ] } ] }, { "id": "transport", "name": "Transport and removal", "description": "Dispersion and deposition.", "findings": [ { "id": "transport-finding", "name": "Transport behaviour", "description": "How long it stays and how far it travels.", "questions": [ { "text": "How far and how long does it travel?", "kind": "measurement" }, { "text": "How is it removed from the air?", "kind": "definition" } ] } ] } ] }, { "id": "health-and-exposure", "name": "Health and exposure", "description": "Effects on people.", "rationale": "Fine aerosols are among the largest environmental health risks.", "layers": [ { "id": "exposure", "name": "Exposure", "description": "Concentrations people breathe.", "findings": [ { "id": "exposure-finding", "name": "Exposure level", "description": "Measured concentrations against limits.", "questions": [ { "text": "What concentration are people exposed to, against which limit?", "kind": "measurement" }, { "text": "Which groups are most vulnerable?", "kind": "boundary" } ] } ] }, { "id": "protection", "name": "Protection", "description": "Masks, filters, ventilation.", "findings": [ { "id": "protection-finding", "name": "Protective measures", "description": "Measures that reduce exposure.", "questions": [ { "text": "Which protective measures work for this aerosol?", "kind": "action" }, { "text": "When should people be advised to stay indoors?", "kind": "action" } ] } ] } ] }, { "id": "products-and-safety", "name": "Products and safety", "description": "Spray products.", "rationale": "Aerosol cans are pressurised products with their own hazards.", "layers": [ { "id": "dispensers", "name": "Aerosol dispensers", "description": "Spray cans.", "findings": [ { "id": "dispensers-finding", "name": "Dispenser rules", "description": "Rules for pressurised dispensers.", "questions": [ { "text": "Which rules apply to this aerosol dispenser?", "kind": "provenance" }, { "text": "Is the propellant flammable?", "kind": "boundary" } ] } ] }, { "id": "disposal", "name": "Disposal", "description": "Empty and partly full cans.", "findings": [ { "id": "disposal-finding", "name": "Disposal rules", "description": "How cans are disposed of.", "questions": [ { "text": "How should used cans be disposed of here?", "kind": "action" }, { "text": "What hazards arise in waste handling?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should aerosol spray products be a separate entry from the physical aerosol?", "How should particle size distributions be represented?", "Which air quality standards should be linked by jurisdiction?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "generic", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a aerosol, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent reason about aerosols by particle size, composition and source, which decide their health effects, climate effects and behaviour.", "characteristics": { "substance": "energy", "origin": "natural", "agency": "inert", "mobility": "varies" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: Cooking spray, PAM, suspension aerosol, droplet nucleus, salty aerosol, Gunshot residue, secondary organic aerosol, Test aerosol, bioaerosol, Solid aerosols, liquid aerosol.", "11 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 76 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a aerosol, and on what evidence are they told apart?" ], "whatItIsMadeOf": "energy or a flow of it", "physicalCharacter": [ "Mobility varies between examples.", "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "Cooking spray", "PAM", "suspension aerosol", "droplet nucleus", "salty aerosol", "Gunshot residue", "secondary organic aerosol", "Test aerosol", "bioaerosol", "Solid aerosols", "liquid aerosol" ] } ], "standing": "Described in 76 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 11 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one aerosol from another, and a aerosol from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a aerosol sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a aerosol from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "form-and-composition", "name": "Form, composition and condition", "description": "What a aerosol is made of, what shape and size it takes, and what state it is in.", "rationale": "A physical thing can be measured, and a model that cannot record its measurements cannot support any decision that depends on them.", "layers": [ { "id": "form-and-dimensions", "name": "Form and dimensions", "description": "Shape, size, mass and the ranges these take across examples.", "findings": [ { "id": "measurable-dimensions", "name": "Measurable dimensions and their units", "description": "The quantities worth recording and the units they are recorded in.", "questions": [ { "id": "measurable-dimensions-q01", "text": "What identifies and describes the dimensions of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "measurable-dimensions-q02", "text": "Who or what asserted this about the dimensions of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "measurable-dimensions-q03", "text": "What may an agent decide or do once the dimensions of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "material-and-composition", "name": "Material and composition", "description": "Materials, parts and how they are put together.", "findings": [ { "id": "parts-and-materials", "name": "Parts and materials", "description": "What a aerosol is built from and which parts are replaceable.", "questions": [ { "id": "parts-and-materials-q01", "text": "What identifies and describes the composition of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "parts-and-materials-q02", "text": "Who or what asserted this about the composition of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "parts-and-materials-q03", "text": "What may an agent decide or do once the composition of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "condition-and-integrity", "name": "Condition and integrity", "description": "Wear, damage, health and the difference between working and broken.", "findings": [ { "id": "condition-assessment", "name": "Condition, damage and health", "description": "How the condition of a aerosol is judged and by whom.", "questions": [ { "id": "condition-assessment-q01", "text": "What identifies and describes the condition of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "condition-assessment-q02", "text": "Who or what asserted this about the condition of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "condition-assessment-q03", "text": "What may an agent decide or do once the condition of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "place-and-movement", "name": "Place and movement", "description": "Where a aerosol is, how it got there and where it may go (varies).", "rationale": "A thing that can move needs its position recorded with a time, or every later claim about it is about a place it has left.", "layers": [ { "id": "location-and-placement", "name": "Location and placement", "description": "Position, containment and the reference frame the position is given in.", "findings": [ { "id": "position-and-frame", "name": "Position, container and reference frame", "description": "Where a aerosol is, and what that position is measured against.", "questions": [ { "id": "position-and-frame-q01", "text": "What identifies and describes the location of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "position-and-frame-q02", "text": "Who or what asserted this about the location of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "position-and-frame-q03", "text": "What may an agent decide or do once the location of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "movement-and-transfer", "name": "Movement and transfer", "description": "How a aerosol is carried, installed or relocated.", "findings": [ { "id": "movement-events", "name": "Movement events and constraints", "description": "What counts as a movement, what records it and what limits it.", "questions": [ { "id": "movement-events-q01", "text": "What identifies and describes the movement of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "movement-events-q02", "text": "Who or what asserted this about the movement of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "movement-events-q03", "text": "What may an agent decide or do once the movement of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a aerosol passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a aerosol between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a aerosol, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a aerosol is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a aerosol came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a aerosol and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a aerosol is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a aerosol, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a aerosol, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a aerosol is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 11, "findings": 13, "questions": 39 } } } }