Class information for:
Level 2: PAHS//POLYCYCLIC AROMATIC HYDROCARBONS//POLYCYCLIC AROMATIC HYDROCARBONS PAHS

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
849 1                   PHENANTHRENE//ENVIRONMENTAL SCIENCE & TECHNOLOGY//SORPTION 3049
1143 1                   PAHS//DIAGNOSTIC RATIOS//POLYCYCLIC AROMATIC HYDROCARBONS 2853
11449 1                   SMOKED MEAT PRODUCTS//POLYCYCLIC AROMATIC HYDROCARBONS//PAH4 1008
13024 1                   PINE NEEDLES//PLANT UPTAKE//DYNAMIC PLANT UPTAKE MODEL 896
17023 1                   PASSIVE SAMPLING//SEMIPERMEABLE MEMBRANE DEVICES//POCIS 648
18611 1                   ENVIRONM CHEM WATER WASTEWATER TECHNOL//SOIL SCI ENVIRONM MANAGEMENT//SOIL SURFACES 567
19458 1                   CANADIAN ENVIRONM MODELLING//MULTIMEDIA MODEL//FUGACITY 528

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PAHS authKW 842474 10% 27% 940
2 POLYCYCLIC AROMATIC HYDROCARBONS authKW 756861 12% 20% 1179
3 POLYCYCLIC AROMATIC HYDROCARBONS PAHS authKW 266634 3% 27% 301
4 PASSIVE SAMPLING authKW 252188 2% 39% 196
5 PAH authKW 226301 4% 17% 409
6 ENVIRONMENTAL SCIENCES WoSSC 207780 71% 1% 6733
7 DIAGNOSTIC RATIOS authKW 195101 1% 59% 100
8 ENVIRONMENTAL SCIENCE & TECHNOLOGY journal 177662 13% 4% 1251
9 SEMIPERMEABLE MEMBRANE DEVICES authKW 144784 1% 73% 60
10 POCIS authKW 111406 1% 68% 50

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Environmental Sciences 207780 71% 1% 6733
2 Engineering, Environmental 66470 21% 1% 2049
3 Toxicology 9921 10% 0% 980
4 Meteorology & Atmospheric Sciences 7147 8% 0% 792
5 Water Resources 4581 7% 0% 621
6 Chemistry, Analytical 2464 8% 0% 796
7 Food Science & Technology 1876 6% 0% 594
8 Soil Science 1544 3% 0% 259
9 Engineering, Civil 733 3% 0% 298
10 Chemistry, Applied 524 3% 0% 287

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 EARTH SUR E PROC 43682 1% 12% 108
2 SOIL SCI ENVIRONM MANAGEMENT 40632 0% 41% 30
3 CANADIAN ENVIRONM MODELLING 38138 0% 43% 27
4 SOIL RECLAMAT WASTE MANAGEMENT 32786 0% 76% 13
5 STATE ORGAN GEOCHEM 32099 1% 7% 140
6 ENVIRONM CHEM WATER WASTEWATER TECHNOL 29687 0% 100% 9
7 OSLO INTERDISCIPLINARY ENVIRONM SOCIAL 27485 0% 83% 10
8 COMPARAT ENVIRONM TOXICOL 17256 0% 19% 27
9 ENVIRONM SCI 17041 6% 1% 547
10 DEV INNOVAT RD I 16493 0% 100% 5

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ENVIRONMENTAL SCIENCE & TECHNOLOGY 177662 13% 4% 1251
2 CHEMOSPHERE 93924 9% 4% 815
3 ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 71096 5% 5% 448
4 ENVIRONMENTAL POLLUTION 48740 4% 4% 386
5 POLYCYCLIC AROMATIC COMPOUNDS 47456 1% 12% 119
6 ATMOSPHERIC ENVIRONMENT 33008 4% 2% 420
7 SCIENCE OF THE TOTAL ENVIRONMENT 19607 4% 2% 366
8 ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 17091 2% 2% 226
9 JOURNAL OF ENVIRONMENTAL MONITORING 12514 1% 4% 99
10 JOURNAL OF ENVIRONMENTAL QUALITY 8598 1% 2% 135

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PAHS 842474 10% 27% 940 Search PAHS Search PAHS
2 POLYCYCLIC AROMATIC HYDROCARBONS 756861 12% 20% 1179 Search POLYCYCLIC+AROMATIC+HYDROCARBONS Search POLYCYCLIC+AROMATIC+HYDROCARBONS
3 POLYCYCLIC AROMATIC HYDROCARBONS PAHS 266634 3% 27% 301 Search POLYCYCLIC+AROMATIC+HYDROCARBONS+PAHS Search POLYCYCLIC+AROMATIC+HYDROCARBONS+PAHS
4 PASSIVE SAMPLING 252188 2% 39% 196 Search PASSIVE+SAMPLING Search PASSIVE+SAMPLING
5 PAH 226301 4% 17% 409 Search PAH Search PAH
6 DIAGNOSTIC RATIOS 195101 1% 59% 100 Search DIAGNOSTIC+RATIOS Search DIAGNOSTIC+RATIOS
7 SEMIPERMEABLE MEMBRANE DEVICES 144784 1% 73% 60 Search SEMIPERMEABLE+MEMBRANE+DEVICES Search SEMIPERMEABLE+MEMBRANE+DEVICES
8 POCIS 111406 1% 68% 50 Search POCIS Search POCIS
9 PHENANTHRENE 99938 2% 17% 182 Search PHENANTHRENE Search PHENANTHRENE
10 SPMDS 89792 0% 83% 33 Search SPMDS Search SPMDS

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 2


rank cluster_id2 link
1 1511 OIL SPILL//MARINE POLLUTION BULLETIN//PAHS
2 759 BIOSURFACTANT//RHAMNOLIPID//BIOREMEDIATION
3 36 DIOXIN//POLYCHLORINATED BIPHENYLS//PCBS
4 2404 BIOCHAR//WOODCERAMICS//BLACK CARBON
5 321 PESTICIDES//GLYPHOSATE//HERBICIDE
6 2493 ELECTROKINETIC REMEDIATION//SOIL WASHING//ELECTROKINETICS
7 714 HETEROCYCLIC AMINES//DNA ADDUCTS//HETEROCYCLIC AROMATIC AMINES
8 4190 DECAMETHYLCYCLOPENTASILOXANE//VOLATILE METHYLSILOXANES//SILOXANE
9 3873 AZAARENES//7H DIBENZOC GCARBAZOLE//DIBENZA JACRIDINE
10 84 METEOROLOGY & ATMOSPHERIC SCIENCES//ATMOSPHERIC ENVIRONMENT//ATMOSPHERIC CHEMISTRY AND PHYSICS

Go to start page