Class information for:
Level 2: OZONE FORMATION POTENTIAL//FORMALDEHYDE DETERMINATION//NON METHANE HYDROCARBONS

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
1900 5364 26.3 50%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 3)


ID, lev.
above		 Publications Label for level above
73 81852 ATMOSPHERIC ENVIRONMENT//METEOROLOGY & ATMOSPHERIC SCIENCES//ATMOSPHERIC CHEMISTRY AND PHYSICS

Classes in level below (level 1)


ID, lev. below Publications Label for level below
4287 1737 OZONE FORMATION POTENTIAL//NON METHANE HYDROCARBONS//STATE JOINT ENVIRONM SIMULAT POLLUT CON
5428 1558 FORMALDEHYDE DETERMINATION//2 4 DINITROPHENYLHYDRAZINE//CARBONYL COMPOUNDS
13429 773 BREAKTHROUGH VOLUMES//SOLID PHASE COLLECTION//ADSORBENT TUBE
17928 512 PASSIVE SAMPLER//DIFFUSION TUBES//BADAN LINGKUNGAN HIDUP
20114 412 GASEOUS STANDARD MIXTURES//CRITICAL FLOW VENTURI NOZZLE//CRITICAL NOZZLE
27424 188 VOLATILE ORGANIC HAZARDOUS AIR POLLUTANTS//ROUNDROBIN TEST//SECT 23RD COOPERAT TEST
27632 184 TAPE MONITOR//HCL GAS SENSOR//OPTOCHEMICAL SENSOR

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 OZONE FORMATION POTENTIAL Author keyword 40 69% 1% 34
2 FORMALDEHYDE DETERMINATION Author keyword 32 88% 0% 15
3 NON METHANE HYDROCARBONS Author keyword 27 55% 1% 34
4 PASSIVE SAMPLER Author keyword 25 34% 1% 60
5 2 4 DINITROPHENYLHYDRAZINE Author keyword 25 41% 1% 46
6 GASEOUS STANDARD MIXTURES Author keyword 24 91% 0% 10
7 DIFFUSIVE SAMPLERS Author keyword 23 86% 0% 12
8 TAPE MONITOR Author keyword 23 86% 0% 12
9 AIR ANALYSIS Author keyword 23 29% 1% 66
10 STATE JOINT ENVIRONM SIMULAT POLLUT CON Address 21 47% 1% 34

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 OZONE FORMATION POTENTIAL 40 69% 1% 34 Search OZONE+FORMATION+POTENTIAL Search OZONE+FORMATION+POTENTIAL
2 FORMALDEHYDE DETERMINATION 32 88% 0% 15 Search FORMALDEHYDE+DETERMINATION Search FORMALDEHYDE+DETERMINATION
3 NON METHANE HYDROCARBONS 27 55% 1% 34 Search NON+METHANE+HYDROCARBONS Search NON+METHANE+HYDROCARBONS
4 PASSIVE SAMPLER 25 34% 1% 60 Search PASSIVE+SAMPLER Search PASSIVE+SAMPLER
5 2 4 DINITROPHENYLHYDRAZINE 25 41% 1% 46 Search 2+4+DINITROPHENYLHYDRAZINE Search 2+4+DINITROPHENYLHYDRAZINE
6 GASEOUS STANDARD MIXTURES 24 91% 0% 10 Search GASEOUS+STANDARD+MIXTURES Search GASEOUS+STANDARD+MIXTURES
7 DIFFUSIVE SAMPLERS 23 86% 0% 12 Search DIFFUSIVE+SAMPLERS Search DIFFUSIVE+SAMPLERS
8 TAPE MONITOR 23 86% 0% 12 Search TAPE+MONITOR Search TAPE+MONITOR
9 AIR ANALYSIS 23 29% 1% 66 Search AIR+ANALYSIS Search AIR+ANALYSIS
10 NMHCS 17 59% 0% 19 Search NMHCS Search NMHCS

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 NONMETHANE HYDROCARBONS 82 39% 3% 167
2 2 4 DINITROPHENYLHYDRAZONES 65 67% 1% 59
3 AMBIENT AIR 56 14% 7% 373
4 ROME AMBIENT AIR 51 91% 0% 21
5 COMPOUNDS VOCS 44 41% 2% 83
6 HYDROCARBON SOURCE APPORTIONMENT 37 100% 0% 14
7 2 4 DINITROPHENYLHYDRAZINE 35 54% 1% 45
8 TRACE FORMALDEHYDE 32 88% 0% 15
9 CALCULATED REACTIVITIES 31 92% 0% 12
10 HYDRAZINE REAGENTS 31 92% 0% 12

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
Monitoring the ambient environment with diffusive samplers: theory and practical considerations 2000 127 57 95%
Sorbent trapping of volatile organic compounds from air 2000 147 105 73%
Sampling and preconcentration techniques for determination of volatile organic compounds in air samples 2009 67 50 64%
Sorbent-based sampling methods for volatile and semi-volatile organic compounds in air Part 1: Sorbent-based air monitoring options 2010 53 13 62%
Sources of ambient volatile organic compounds and their contributions to photochemical ozone formation at a site in the Pearl River Delta, southern China 2011 21 50 80%
Sorbent-based sampling methods for volatile and semi-volatile organic compounds in air. Part 2. Sorbent selection and other aspects of optimizing air monitoring methods 2010 51 12 58%
Review of volatile organic compound source apportionment by chemical mass balance 2001 209 74 43%
Hydrazine reagents as derivatizing agents in environmental analysis - a critical review 2000 94 100 85%
Transportable, fast and high sensitive near real-time analyzers: Formaldehyde detection 2013 10 35 71%
Passive sampling of ambient, gaseous air pollutants: an assessment from an ecological perspective 2000 108 69 67%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 STATE JOINT ENVIRONM SIMULAT POLLUT CON 21 47% 0.6% 34
2 STATE JOINT ENVIRONM SIMULAT POLLUT CONTROL 6 80% 0.1% 4
3 ABT ANALYT CHEM 6 36% 0.3% 14
4 ORGAN STAND SECT 1 4 67% 0.1% 4
5 IST INQUINAMENTO ATMOSFER 4 18% 0.4% 22
6 NACL CONDICIONES TRABAJO 4 75% 0.1% 3
7 AIR QUAL ANAL SECT 3 50% 0.1% 5
8 CHIM ENVIRONM 3 11% 0.5% 28
9 REG AIR MONITORING GRP 3 57% 0.1% 4
10 AIR CHEM SECT 3 100% 0.1% 3

Related classes at same level (level 2)


Rank Relatedness score Related classes
1 0.0000024751 DIMETHYLSULFONIOPROPIONATE//ISOPRENE//DIMETHYLSULFIDE
2 0.0000023166 ATMOSPHERIC ENVIRONMENT//ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS//PRECIPITATION CHEMISTRY
3 0.0000014856 AIR POLLUTION//PARTICULATE MATTER//DIESEL EXHAUST PARTICLES
4 0.0000014683 MEMBRANE INTRODUCTION MASS SPECTROMETRY//RESIDUAL SOLVENTS//PL ENVIRONM S
5 0.0000013748 COMPREHENSIVE TWO DIMENSIONAL GAS CHROMATOGRAPHY//GCXGC//JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY & CHROMATOGRAPHY COMMUNICATIONS
6 0.0000009881 ATMOSPHERIC ENVIRONMENT//ATMOSPHERIC CHEMISTRY AND PHYSICS//AEROSOL SCIENCE AND TECHNOLOGY
7 0.0000009543 TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY//GLOBAL MONITORING//EFFECTIVE HAMILTONIAN MODEL
8 0.0000009251 GRAPHITIZED THERMAL CARBON BLACK//MOLECULAR STATISTICAL CALCULATIONS//THERMODYNAMIC CHARACTERISTICS OF ADSORPTION
9 0.0000008976 BIOFILTRATION//BIOTRICKLING FILTER//BIOFILTER
10 0.0000007338 INHALANT ABUSE//BENZENE//TRICHLOROETHYLENE