DDT
E247136
DDT is a synthetic insecticide once widely used for agricultural and disease-control purposes, now infamous for its environmental persistence, bioaccumulation, and harmful effects on wildlife and human health.
All labels observed (1)
| Label | Occurrences |
|---|---|
| DDT canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2252695 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: DDT Context triple: [Stockholm Convention on Persistent Organic Pollutants, initialChemical, DDT]
-
A.
Zyklon B
Zyklon B was a cyanide-based pesticide infamously used by Nazi Germany as a chemical agent for mass murder in extermination camps during the Holocaust.
-
B.
Dalstroy
Dalstroy was a Soviet state organization under the NKVD that managed forced labor camps and large-scale mining and construction projects in the Kolyma region.
-
C.
Agent Orange
Agent Orange is a powerful herbicidal chemical mixture used by the U.S. military as a defoliant, notorious for causing severe health problems and environmental damage.
-
D.
Balemartine
Balemartine is a small coastal village located on the island of Tiree in Scotland’s Inner Hebrides.
-
E.
VX gas
VX gas is an extremely toxic, persistent nerve agent developed for chemical warfare, known for its rapid disruption of the nervous system even at very low exposure levels.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: DDT Target entity description: DDT is a synthetic insecticide once widely used for agricultural and disease-control purposes, now infamous for its environmental persistence, bioaccumulation, and harmful effects on wildlife and human health.
-
A.
Zyklon B
Zyklon B was a cyanide-based pesticide infamously used by Nazi Germany as a chemical agent for mass murder in extermination camps during the Holocaust.
-
B.
Dalstroy
Dalstroy was a Soviet state organization under the NKVD that managed forced labor camps and large-scale mining and construction projects in the Kolyma region.
-
C.
Agent Orange
Agent Orange is a powerful herbicidal chemical mixture used by the U.S. military as a defoliant, notorious for causing severe health problems and environmental damage.
-
D.
Balemartine
Balemartine is a small coastal village located on the island of Tiree in Scotland’s Inner Hebrides.
-
E.
VX gas
VX gas is an extremely toxic, persistent nerve agent developed for chemical warfare, known for its rapid disruption of the nervous system even at very low exposure levels.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
organochlorine insecticide
ⓘ
persistent organic pollutant ⓘ synthetic chemical compound ⓘ |
| abbreviationOf | dichlorodiphenyltrichloroethane ⓘ |
| bioaccumulatesIn |
fatty tissues of animals
ⓘ
human adipose tissue ⓘ |
| causes | eggshell thinning in birds ⓘ |
| chemicalName | dichlorodiphenyltrichloroethane ⓘ |
| hasChemicalClass | organochlorine ⓘ |
| hasColor | colorless ⓘ |
| hasEnvironmentalHalfLife | years to decades ⓘ |
| hasLowWaterSolubility | true ⓘ |
| hasMolarMass | 354.49 g/mol ⓘ |
| hasMolecularFormula | C14H9Cl5 ⓘ |
| hasOdor | nearly odorless ⓘ |
| hasPhysicalStateAtRoomTemperature | solid ⓘ |
| insecticidalPropertiesDiscoveredBy | Paul Hermann Müller ⓘ |
| inspiredEnvironmentalMovement | modern environmental awareness and regulation ⓘ |
| isAssociatedWithDeclineOf |
peregrine falcons
ⓘ
raptors such as bald eagles ⓘ |
| isClassifiedAs | probable human carcinogen ⓘ |
| isHydrophobic | true ⓘ |
| isKnownFor |
bioaccumulation in food chains
ⓘ
environmental persistence ⓘ harmful effects on wildlife ⓘ potential human health risks ⓘ |
| isLipophilic | true ⓘ |
| isMonitoredIn |
human tissues
ⓘ
soil ⓘ water ⓘ wildlife tissues ⓘ |
| isPersistentInEnvironment | true ⓘ |
| isRegulatedBy | Stockholm Convention on Persistent Organic Pollutants ⓘ |
| isStillAllowedFor | limited disease vector control under specific conditions ⓘ |
| ledToNobelPrizeFor | Paul Hermann Müller ⓘ |
| NobelPrizeCategory |
Nobel Prize in Physiology or Medicine
ⓘ
surface form:
Physiology or Medicine
|
| NobelPrizeYear | 1948 ⓘ |
| wasBannedForAgriculturalUseIn |
United States of America
ⓘ
surface form:
United States
|
| wasBannedOrRestrictedIn | many countries worldwide ⓘ |
| wasCriticizedIn |
Rachel Carson
ⓘ
surface form:
Rachel Carson's book "Silent Spring"
|
| wasFirstSynthesizedBy | Othmar Zeidler ⓘ |
| wasUsedDuring | World War II ⓘ |
| wasUsedToControl |
agricultural insects
ⓘ
lice ⓘ mosquitoes ⓘ |
| wasWidelyUsedFor |
agricultural pest control
ⓘ
malaria vector control ⓘ typhus control ⓘ |
| yearBannedInUnitedStates | 1972 ⓘ |
| yearInsecticidalPropertiesDiscovered | 1939 ⓘ |
| yearOfFirstSynthesis | 1874 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: DDT Description of subject: DDT is a synthetic insecticide once widely used for agricultural and disease-control purposes, now infamous for its environmental persistence, bioaccumulation, and harmful effects on wildlife and human health.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Silent Spring