Class information for:
Level 1: PFOS//PFOA//PERFLUOROOCTANE SULFONATE

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
2761 2             PFOS//PFOA//PERFLUOROOCTANE SULFONATE 3427
479 1                   PFOS//PFOA//PERFLUOROOCTANE SULFONATE 3427

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PFOS authKW 4339200 15% 92% 515
2 PFOA authKW 3834289 13% 94% 446
3 PERFLUOROOCTANE SULFONATE authKW 2174022 8% 89% 265
4 PERFLUOROOCTANOIC ACID authKW 1910440 7% 84% 248
5 PERFLUORINATED COMPOUNDS authKW 1715440 7% 81% 231
6 PERFLUOROOCTANE SULFONATE PFOS authKW 1012130 3% 97% 113
7 PERFLUOROALKYL SUBSTANCES authKW 833712 3% 88% 103
8 PERFLUOROALKYL ACIDS authKW 801485 3% 96% 91
9 PERFLUOROOCTANOATE authKW 774795 3% 95% 89
10 PERFLUOROOCTANOIC ACID PFOA authKW 686936 2% 91% 82

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Environmental Sciences 50733 59% 0% 2006
2 Toxicology 25543 26% 0% 893
3 Engineering, Environmental 19992 20% 0% 675
4 Public, Environmental & Occupational Health 1232 9% 0% 311
5 Chemistry, Analytical 1084 9% 0% 310
6 Biochemical Research Methods 382 4% 0% 153
7 Water Resources 279 3% 0% 106
8 Reproductive Biology 248 2% 0% 69
9 Marine & Freshwater Biology 108 2% 0% 83
10 Pharmacology & Pharmacy 107 6% 0% 207

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 MAN TECHNOL ENVIRONM MTM 172611 1% 57% 33
2 PL ENVIRONM SCI ITM 68125 1% 15% 50
3 CORP TOXICOL 58843 0% 80% 8
4 UNIT ECOPHYSIOL BIOCHEM TOXICOL 49644 0% 60% 9
5 DEV TOXICOL BRANCH 47286 0% 86% 6
6 ENVIRONM 3M 45974 0% 100% 5
7 ENVIRONM TOXICOL HLTH 45050 0% 70% 7
8 HUMAN EXPOSURE ATMOSPHER SCI 43373 1% 20% 24
9 ANALYT ENVIRONM TOXICOL 41145 1% 16% 28
10 STATE ENVIRONM CHEM ECOTOXICOL 40519 3% 5% 89

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ENVIRONMENTAL SCIENCE & TECHNOLOGY 65498 13% 2% 455
2 CHEMOSPHERE 41948 10% 1% 326
3 ENVIRONMENT INTERNATIONAL 31319 3% 3% 117
4 ENVIRONMENTAL POLLUTION 12016 3% 1% 115
5 TOXICOLOGICAL SCIENCES 9827 2% 1% 74
6 REPRODUCTIVE TOXICOLOGY 9815 2% 2% 53
7 ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 7916 3% 1% 90
8 ENVIRONMENTAL RESEARCH 6823 2% 1% 62
9 ENVIRONMENTAL HEALTH PERSPECTIVES 6771 2% 1% 82
10 TOXICOLOGY 5729 2% 1% 67

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PFOS 4339200 15% 92% 515 Search PFOS Search PFOS
2 PFOA 3834289 13% 94% 446 Search PFOA Search PFOA
3 PERFLUOROOCTANE SULFONATE 2174022 8% 89% 265 Search PERFLUOROOCTANE+SULFONATE Search PERFLUOROOCTANE+SULFONATE
4 PERFLUOROOCTANOIC ACID 1910440 7% 84% 248 Search PERFLUOROOCTANOIC+ACID Search PERFLUOROOCTANOIC+ACID
5 PERFLUORINATED COMPOUNDS 1715440 7% 81% 231 Search PERFLUORINATED+COMPOUNDS Search PERFLUORINATED+COMPOUNDS
6 PERFLUOROOCTANE SULFONATE PFOS 1012130 3% 97% 113 Search PERFLUOROOCTANE+SULFONATE+PFOS Search PERFLUOROOCTANE+SULFONATE+PFOS
7 PERFLUOROALKYL SUBSTANCES 833712 3% 88% 103 Search PERFLUOROALKYL+SUBSTANCES Search PERFLUOROALKYL+SUBSTANCES
8 PERFLUOROALKYL ACIDS 801485 3% 96% 91 Search PERFLUOROALKYL+ACIDS Search PERFLUOROALKYL+ACIDS
9 PERFLUOROOCTANOATE 774795 3% 95% 89 Search PERFLUOROOCTANOATE Search PERFLUOROOCTANOATE
10 PERFLUOROOCTANOIC ACID PFOA 686936 2% 91% 82 Search PERFLUOROOCTANOIC+ACID+PFOA Search PERFLUOROOCTANOIC+ACID+PFOA

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 3837 PEROXISOME PROLIFERATOR//PEROXISOME PROLIFERATION//3 THIA FATTY ACIDS
2 16350 MOL CELL NUTR//OBESOGEN//PERSISTENT ORGANIC POLLUTANTS
3 30264 SKJLESPC//ENVIRONMPOPS//MECHANOCHEMICAL DESTRUCTION
4 32925 BIOMONITORING EQUIVALENTS//EXPOSURE GUIDANCE VALUES//SOCIAL SCI ENVIRONM HLTH
5 180 POLYBROMINATED DIPHENYL ETHERS//BROMINATED FLAME RETARDANTS//PBDES
6 13625 FLUORINATED AMPHIPHILE//FLUORINATED LIPOSOME//FLUORINATED SURFACTANT
7 28571 WATERPROOFING SPRAY//SMOKE BOMBS//WATERPROOFING AGENT
8 34644 LONGITUDINAL BIRTH COHORT//NATIONAL CHILDRENS STUDY//BIRTH COHORT STUDIES
9 7966 SULFATE RADICAL//PERSULFATE//PEROXYMONOSULFATE
10 5252 EGGSHELL THINNING//ORGANOCHLORINES//GLAUCOUS GULL

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