Class information for:
Level 1: PAHS//DIAGNOSTIC RATIOS//POLYCYCLIC AROMATIC HYDROCARBONS

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
18 4 CHEMISTRY, ANALYTICAL//TOXICOLOGY//ENVIRONMENTAL SCIENCES 697102
27 3       ENVIRONMENTAL SCIENCES//TOXICOLOGY//CHEMOSPHERE 115610
1199 2             PAHS//POLYCYCLIC AROMATIC HYDROCARBONS//POLYCYCLIC AROMATIC HYDROCARBONS PAHS 9549
1143 1                   PAHS//DIAGNOSTIC RATIOS//POLYCYCLIC AROMATIC HYDROCARBONS 2853

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PAHS authKW 1019860 20% 16% 565
2 DIAGNOSTIC RATIOS authKW 627591 3% 58% 98
3 POLYCYCLIC AROMATIC HYDROCARBONS authKW 572165 20% 9% 560
4 GAS PARTICLE PARTITIONING authKW 256967 2% 36% 64
5 POLYCYCLIC AROMATIC HYDROCARBONS PAHS authKW 221826 5% 13% 150
6 PAH authKW 194303 7% 9% 207
7 ILCR authKW 111369 0% 92% 11
8 SOURCE APPORTIONMENT authKW 107665 4% 9% 110
9 ATMOSPHERIC ENVIRONMENT journal 92939 13% 2% 382
10 GAS PARTICLE DISTRIBUTION authKW 78888 0% 71% 10

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Environmental Sciences 72776 76% 0% 2173
2 Meteorology & Atmospheric Sciences 18945 23% 0% 662
3 Engineering, Environmental 10794 16% 0% 456
4 Chemistry, Analytical 753 8% 0% 240
5 Toxicology 746 6% 0% 159
6 Water Resources 296 3% 0% 97
7 Engineering, Civil 219 3% 0% 89
8 Soil Science 74 1% 0% 37
9 Engineering, Chemical 43 3% 0% 91
10 Public, Environmental & Occupational Health 36 3% 0% 85

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 EARTH SUR E PROC 65156 3% 8% 72
2 NIDA DEV DISASTER PREVENT MANAGEMENT 45095 0% 58% 7
3 REFERENCE TRACE ORGAN 41625 0% 54% 7
4 SOCIAL ENVIRONM DEV 39745 0% 30% 12
5 DIP AMPP 33135 0% 100% 3
6 AIR PROTECT 32728 0% 23% 13
7 GUANGZHOU ENVIRONM OURCES 30676 0% 56% 5
8 POST PROGRAM REMOTE SENSING METEOROL 30676 0% 56% 5
9 IST INQUINAMENTO ATMOSFER 27710 1% 14% 18
10 STATE ENVIRONM PROTECT URBAN AMBIENT AIR 22592 1% 13% 16

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ATMOSPHERIC ENVIRONMENT 92939 13% 2% 382
2 POLYCYCLIC AROMATIC COMPOUNDS 58293 3% 7% 72
3 ENVIRONMENTAL SCIENCE & TECHNOLOGY 23583 9% 1% 250
4 AEROSOL AND AIR QUALITY RESEARCH 20932 2% 4% 52
5 SCIENCE OF THE TOTAL ENVIRONMENT 16283 6% 1% 181
6 ENVIRONMENTAL POLLUTION 15776 4% 1% 120
7 ATMOSPHERIC RESEARCH 11294 2% 2% 61
8 ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 9969 3% 1% 94
9 JOURNAL OF ENVIRONMENTAL MONITORING 9093 2% 2% 46
10 CHEMOSPHERE 8127 5% 1% 132

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PAHS 1019860 20% 16% 565 Search PAHS Search PAHS
2 DIAGNOSTIC RATIOS 627591 3% 58% 98 Search DIAGNOSTIC+RATIOS Search DIAGNOSTIC+RATIOS
3 POLYCYCLIC AROMATIC HYDROCARBONS 572165 20% 9% 560 Search POLYCYCLIC+AROMATIC+HYDROCARBONS Search POLYCYCLIC+AROMATIC+HYDROCARBONS
4 GAS PARTICLE PARTITIONING 256967 2% 36% 64 Search GAS+PARTICLE+PARTITIONING Search GAS+PARTICLE+PARTITIONING
5 POLYCYCLIC AROMATIC HYDROCARBONS PAHS 221826 5% 13% 150 Search POLYCYCLIC+AROMATIC+HYDROCARBONS+PAHS Search POLYCYCLIC+AROMATIC+HYDROCARBONS+PAHS
6 PAH 194303 7% 9% 207 Search PAH Search PAH
7 ILCR 111369 0% 92% 11 Search ILCR Search ILCR
8 SOURCE APPORTIONMENT 107665 4% 9% 110 Search SOURCE+APPORTIONMENT Search SOURCE+APPORTIONMENT
9 GAS PARTICLE DISTRIBUTION 78888 0% 71% 10 Search GAS+PARTICLE+DISTRIBUTION Search GAS+PARTICLE+DISTRIBUTION
10 PARTICULATE PAHS 78541 0% 89% 8 Search PARTICULATE+PAHS Search PARTICULATE+PAHS

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 16043 LEVOGLUCOSAN//MONOSACCHARIDE ANHYDRIDES//BIOMASS BURNING
2 1857 PAHS//PETROGENIC//MARINE POLLUTION BULLETIN
3 2952 NITRO PAH//3 NITROBENZANTHRONE//NITRO POLYCYCLIC AROMATIC HYDROCARBONS
4 29908 INCENSE//INCENSE BURNING//INCENSE SMOKE
5 13024 PINE NEEDLES//PLANT UPTAKE//DYNAMIC PLANT UPTAKE MODEL
6 33819 SOIL TECHNOGENESIS//BITUMINOUS SUBSTANCES//DARK GRAY SOIL
7 11449 SMOKED MEAT PRODUCTS//POLYCYCLIC AROMATIC HYDROCARBONS//PAH4
8 537 ORGANOCHLORINE PESTICIDES//OCPS//PCBS
9 18611 ENVIRONM CHEM WATER WASTEWATER TECHNOL//SOIL SCI ENVIRONM MANAGEMENT//SOIL SURFACES
10 7932 1 HYDROXYPYRENE//BITUMEN FUMES//COKE OVEN WORKERS

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