Class information for:
Level 1: OZONE FORMATION POTENTIAL//NON METHANE HYDROCARBONS//VOLATILE ORGANIC COMPOUNDS

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
3 4 GEOSCIENCES, MULTIDISCIPLINARY//GEOCHEMISTRY & GEOPHYSICS//METEOROLOGY & ATMOSPHERIC SCIENCES 1953906
16 3       METEOROLOGY & ATMOSPHERIC SCIENCES//ATMOSPHERIC ENVIRONMENT//JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 126179
1575 2             ISOPRENE//BIOGENIC EMISSIONS//VOLATILE ORGANIC COMPOUNDS 7519
2386 1                   OZONE FORMATION POTENTIAL//NON METHANE HYDROCARBONS//VOLATILE ORGANIC COMPOUNDS 2297

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 OZONE FORMATION POTENTIAL authKW 496788 2% 77% 47
2 NON METHANE HYDROCARBONS authKW 481811 3% 56% 63
3 VOLATILE ORGANIC COMPOUNDS authKW 411881 14% 9% 332
4 VOCS authKW 241924 7% 12% 153
5 STATE JOINT ENVIRONM SIMULAT POLLUT CON address 211624 2% 43% 36
6 BTEX authKW 181778 4% 13% 99
7 NMHCS authKW 179442 1% 59% 22
8 OZONE PRECURSORS authKW 173437 1% 41% 31
9 AIR ANALYSIS authKW 164605 2% 23% 53
10 ATMOSPHERIC ENVIRONMENT journal 163481 20% 3% 454

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Environmental Sciences 43781 66% 0% 1519
2 Meteorology & Atmospheric Sciences 39586 37% 0% 848
3 Engineering, Environmental 5818 13% 0% 303
4 Chemistry, Analytical 4023 19% 0% 436
5 Biochemical Research Methods 629 6% 0% 147
6 Public, Environmental & Occupational Health 201 5% 0% 121
7 Toxicology 180 3% 0% 79
8 Water Resources 59 2% 0% 47
9 Construction & Building Technology 51 1% 0% 25
10 Engineering, Civil 31 2% 0% 40

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 STATE JOINT ENVIRONM SIMULAT POLLUT CON 211624 2% 43% 36
2 AIR GRP 30866 0% 75% 3
3 E KOLKATA AREA DEV PROJECT 30866 0% 75% 3
4 NACL CONDICIONES TRABAJO 30866 0% 75% 3
5 NETCEN 28576 0% 42% 5
6 CHIM ANALYT ORGAN 27438 0% 100% 2
7 LCSQA 27438 0% 100% 2
8 TESTZENTRUM ENERGIETECH 27438 0% 100% 2
9 LCMA 26377 0% 38% 5
10 MUMBAI ZONAL 24686 0% 30% 6

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ATMOSPHERIC ENVIRONMENT 163481 20% 3% 454
2 JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION 32181 4% 3% 91
3 AIR QUALITY ATMOSPHERE AND HEALTH 19893 1% 6% 25
4 JOURNAL OF ATMOSPHERIC CHEMISTRY 13955 2% 3% 37
5 JOURNAL OF ENVIRONMENTAL MONITORING 9427 2% 2% 42
6 SCIENCE OF THE TOTAL ENVIRONMENT 7554 5% 1% 111
7 AEROSOL AND AIR QUALITY RESEARCH 5989 1% 2% 25
8 ENVIRONMENTAL SCIENCE & TECHNOLOGY 5573 5% 0% 110
9 ATMOSPHERIC POLLUTION RESEARCH 5133 1% 3% 15
10 JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 4429 4% 0% 85

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 OZONE FORMATION POTENTIAL 496788 2% 77% 47 Search OZONE+FORMATION+POTENTIAL Search OZONE+FORMATION+POTENTIAL
2 NON METHANE HYDROCARBONS 481811 3% 56% 63 Search NON+METHANE+HYDROCARBONS Search NON+METHANE+HYDROCARBONS
3 VOLATILE ORGANIC COMPOUNDS 411881 14% 9% 332 Search VOLATILE+ORGANIC+COMPOUNDS Search VOLATILE+ORGANIC+COMPOUNDS
4 VOCS 241924 7% 12% 153 Search VOCS Search VOCS
5 BTEX 181778 4% 13% 99 Search BTEX Search BTEX
6 NMHCS 179442 1% 59% 22 Search NMHCS Search NMHCS
7 OZONE PRECURSORS 173437 1% 41% 31 Search OZONE+PRECURSORS Search OZONE+PRECURSORS
8 AIR ANALYSIS 164605 2% 23% 53 Search AIR+ANALYSIS Search AIR+ANALYSIS
9 AIR TOXICS 140443 2% 27% 38 Search AIR+TOXICS Search AIR+TOXICS
10 NMHC 120774 1% 46% 19 Search NMHC Search NMHC

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 13132 AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL//GASEOUS STANDARD MIXTURES//PERMEATION TUBE
2 3292 ISOPRENE//BIOGENIC EMISSIONS//BVOC
3 20150 PASSIVE SAMPLER//DIFFUSION TUBES//TAPE MONITOR
4 5619 INDOOR CHEMISTRY//INDOOR AIR//INDOOR AIR QUALITY
5 16436 IN VEHICLE EXPOSURE//TRANSPORT MICROENVIRONMENT//SUBWAY
6 5676 FORMALDEHYDE//2 4 DINITROPHENYLHYDRAZINE//FORMALDEHYDE DETERMINATION
7 7020 PEROXYACETYL NITRATE//ALKYL NITRATES//PEROXY RADICALS
8 20930 TRANSITION STATES THEORY//AMINOTOLUENE//ANAL PESTICIDES MICROPOLLUANTS ORGAN
9 13429 HALOCARBONS//GLOBAL CHANGE SCI//MONTREAL PROTOCOL
10 4569 DRIVING CYCLE//VEHICLE EMISSIONS//TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT

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