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Polycyclic aromatic hydrocarbon: Nomenclature and structure, Distribution in the environment & Detection and optical properties

A polycyclic aromatic hydrocarbon (PAH) is any member of a class of organic compounds that is composed of multiple fused aromatic rings. Most are produced by the incomplete combustion of organic matter—by engine exhaust fumes, tobacco, incinerators, in roasted meats and cereals, or when biomass burns at lower temperatures as in forest fires. The simplest…

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Polycyclic aromatic hydrocarbon topic overview

The analysis highlights Nomenclature and structure, Distribution in the environment and Detection and optical properties as prominent areas in the source structure around Polycyclic aromatic hydrocarbon.

Related topics
262
Source areas
9
Connected nodes
278
Extracted relationships
72
Related term clusters
49
Bridge connections
278

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 85 topics
Distribution in the environment · 62 topics
Nomenclature and structure · 42 topics
Detection and optical properties · 24 topics
Human health · 17 topics
Biodegradation · 12 topics
Properties · 8 topics
Bonding and aromaticity · 6 topics
Regulation and oversight · 6 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

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Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Nomenclature and structure

Bonding and aromaticity

Properties

Sources

Biodegradation

Distribution in the environment

Human health

Regulation and oversight

Detection and optical properties

For the semantics nerds

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Advanced semantic analysis

How Polycyclic aromatic hydrocarbon connects Entity context

The extracted context around Polycyclic aromatic hydrocarbon shows recurring relationship patterns in the source. For example, Polycyclic aromatic hydrocarbon → Agency, ATSDR, Disease Registry, EFSA, EPA, European Food Safety Authority, European Union, NIOSH, PAHs, Priority, The European Commission, Toxic Substances, United States Environmental Protection, US Agency, US EPA Another extracted example is Polycyclic aromatic hydrocarbon → Detection, Most PAHs, PAH, PAHs, Structures, Thus, UV. Use these groups to spot repeated connection types before inspecting the individual relationships.

Polycyclic aromatic hydrocarbon

Top relations

related to Regulation and oversight · 15
Polycyclic aromatic hydrocarbon → Agency, ATSDR, Disease Registry, EFSA, EPA, European Food Safety Authority, European Union, NIOSH, PAHs, Priority, The European Commission, Toxic Substances, United States Environmental Protection, US Agency, US EPA
related to Detection and optical properties · 7
Polycyclic aromatic hydrocarbon → Detection, Most PAHs, PAH, PAHs, Structures, Thus, UV
related to Nomenclature and structure · 5
Polycyclic aromatic hydrocarbon → CDC, PAH, PNA, Sources, US EPA

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

pahs pah also exposure may rings aromatic coal carbon sediments cancer compounds two organic hydrocarbons air polycyclic sources pollution carcinogenic

Polycyclic aromatic hydrocarbon relationships Subject–Predicate–Object triples

TTTA extracted 72 structured relationships around Polycyclic aromatic hydrocarbon. Examples in this analysis include coal → instance of → Many of them are also found in fossil fuel deposits and the US EPA → instance of → Sources. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
coalinstance ofMany of them are also found in fossil fuel deposits0.80text
in petroleuminstance ofMany of them are also found in fossil fuel deposits0.80text
the US EPAinstance ofSources0.80text
CDC consider naphthalene to be the simplest PAHinstance ofSources0.80text
dung or crop residues contribute more than half of annual global PAH emissionsinstance ofwood-burning and combustion of other biofuels0.80text
particularly due to biofuel use in Indiainstance ofwood-burning and combustion of other biofuels0.80text
Chinainstance ofwood-burning and combustion of other biofuels0.80text
the United States.A year-long sampling campaign in Athensinstance ofdominating outputs in industrial countries0.80text
Greece found a thirdinstance ofdominating outputs in industrial countries0.80text
oilinstance ofFossil carbonPolycyclic aromatic hydrocarbons are primarily found in natural sources such as bitumen.PAHs can also be produced geologically when organic sediments are chemically…0.80text
coalinstance ofFossil carbonPolycyclic aromatic hydrocarbons are primarily found in natural sources such as bitumen.PAHs can also be produced geologically when organic sediments are chemically…0.80text
perylene can also be generated in anaerobic sediments from existing organic materialinstance ofthe largest moon of the planet Saturn.Minor sourcesVolcanic eruptions may emit PAHs.Certain PAHs0.80text

Related concept clusters Related term clusters

The concept neighborhoods around Polycyclic aromatic hydrocarbon bring nearby vocabulary together. In this analysis, examples include Hydrocarbons, Polycyclic and Hydrocarbon. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Polycyclic aromatic hydrocarbon
    • Hydrocarbons
    • Polycyclic
    • Hydrocarbon
    • Rings
    • Two
    • Compounds
    • Phenanthrene
    • Anthracene
    • Pah
    • Cancer
    • Disease
    • Human
  • polycyclic aromatic hydrocarbon
    • Hydrocarbons
    • Polycyclic
    • Hydrocarbon
    • Rings
    • Human
    • Cancer
    • Two
    • Compounds
    • Phenanthrene
    • Anthracene
    • Disease
    • Pah
  • organic compounds
    • Sediments
    • Carbon
    • Rings
    • Compounds
    • Organic
    • Degradation
    • Also
    • Polycyclic
    • Coal
    • Pahs
    • Pah
    • Dna
  • aromatic rings
    • Polycyclic
    • Hydrocarbons
    • Two
    • Hydrocarbon
    • Rings
    • Phenanthrene
    • Anthracene
    • Compounds
    • Disease
    • Human
    • Pah
    • Sources
  • aryl hydrocarbon receptor
    • Polycyclic
    • Hydrocarbons
    • Human
    • Rings
    • Cancer
    • Enzymes
    • Urban
    • May
    • Cardiovascular
    • Development
    • Disease
    • Environment
  • air pollution
    • Air
    • Pollution
    • Particulate
    • Water
    • Urban
    • Higher
    • Sources
    • Concentrations
    • Exposure
    • Coal
    • Sediments
    • Pahs
  • indoor particulate air pollution
    • Air
    • Pollution
    • Particulate
    • Water
    • Urban
    • Higher
    • Sources
    • Concentrations
    • Exposure
    • Coal
    • Sediments
    • Pahs
  • urban
    • Pollution
    • Environmental
    • Sources
    • Air
    • Sediments
    • Particulate
    • Pyrene
    • Cardiovascular
    • Development
    • Disease
    • Environment
    • Human

Connections between topic areas Semantic bridges

For Polycyclic aromatic hydrocarbon, one of the stronger structural bridges in this analysis connects Polycyclic aromatic hydrocarbon with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Polycyclic aromatic hydrocarbon — Overview · splits 193 ⟂ 86
Polycyclic aromatic hydrocarbon — Distribution in the environment · splits 216 ⟂ 63
Polycyclic aromatic hydrocarbon — Nomenclature and structure · splits 236 ⟂ 43
Polycyclic aromatic hydrocarbon — Detection and optical properties · splits 254 ⟂ 25
Polycyclic aromatic hydrocarbon — Human health · splits 261 ⟂ 18
Polycyclic aromatic hydrocarbon — Biodegradation · splits 266 ⟂ 13
Polycyclic aromatic hydrocarbon — Properties · splits 270 ⟂ 9
Polycyclic aromatic hydrocarbon — Bonding and aromaticity · splits 272 ⟂ 7
Polycyclic aromatic hydrocarbon — Sources · splits 272 ⟂ 7
Polycyclic aromatic hydrocarbon — Regulation and oversight · splits 272 ⟂ 7

Map overview Semantic statistics

Polycyclic aromatic hydrocarbon

Nodes279
Edges278
Triples72
Avg. degree1.99
Density0.007168
Components1

Source & methodology

TTTA analyzes the structure around Polycyclic aromatic hydrocarbon to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Nomenclature and structure, Distribution in the environment & Detection and optical properties, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Polycyclic aromatic hydrocarbon · EN edition · Analysis: TopicsToTalkAbout

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