Class information for:
Level 1: PAHS//PETROGENIC//OIL SPILL IDENTIFICATION

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
1333 2614 36.6 62%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
846 11070 PAHS//OIL SPILL//PETROLEUM HYDROCARBONS

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 PAHS Author keyword 99 17% 20% 523
2 PETROGENIC Author keyword 87 94% 1% 31
3 OIL SPILL IDENTIFICATION Author keyword 17 79% 0% 11
4 POLYCYCLIC AROMATIC HYDROCARBONS PAHS Author keyword 16 13% 4% 110
5 DIAGNOSTIC RATIOS Author keyword 14 38% 1% 29
6 PYROGENIC Author keyword 14 60% 1% 15
7 MOLECULAR RATIOS Author keyword 13 80% 0% 8
8 ENVIRONMENTAL FORENSICS Journal 12 15% 3% 73
9 ISOMER RATIOS Author keyword 12 86% 0% 6
10 PAH RATIOS Author keyword 12 86% 0% 6

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 PAHS 99 17% 20% 523 Search PAHS Search PAHS
2 PETROGENIC 87 94% 1% 31 Search PETROGENIC Search PETROGENIC
3 OIL SPILL IDENTIFICATION 17 79% 0% 11 Search OIL+SPILL+IDENTIFICATION Search OIL+SPILL+IDENTIFICATION
4 POLYCYCLIC AROMATIC HYDROCARBONS PAHS 16 13% 4% 110 Search POLYCYCLIC+AROMATIC+HYDROCARBONS+PAHS Search POLYCYCLIC+AROMATIC+HYDROCARBONS+PAHS
5 DIAGNOSTIC RATIOS 14 38% 1% 29 Search DIAGNOSTIC+RATIOS Search DIAGNOSTIC+RATIOS
6 PYROGENIC 14 60% 1% 15 Search PYROGENIC Search PYROGENIC
7 MOLECULAR RATIOS 13 80% 0% 8 Search MOLECULAR+RATIOS Search MOLECULAR+RATIOS
8 ISOMER RATIOS 12 86% 0% 6 Search ISOMER+RATIOS Search ISOMER+RATIOS
9 PAH RATIOS 12 86% 0% 6 Search PAH+RATIOS Search PAH+RATIOS
10 ALIPHATIC HYDROCARBONS 11 25% 1% 39 Search ALIPHATIC+HYDROCARBONS Search ALIPHATIC+HYDROCARBONS

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 PAHS 105 19% 19% 500
2 FRASER RIVER BASIN 72 81% 2% 43
3 PAH DISTRIBUTIONS 49 94% 1% 17
4 SURFACE SEDIMENTS 36 12% 11% 284
5 PAH SOURCE 33 49% 2% 49
6 HONG KONG SOILS 29 77% 1% 20
7 RECENT LAKE SEDIMENTS 27 56% 1% 33
8 SURFICIAL SEDIMENTS 26 22% 4% 103
9 POTENTIAL TOXICOLOGICAL SIGNIFICANCE 23 86% 0% 12
10 PETROLEUM HYDROCARBONS 21 16% 5% 124

Journals


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 ENVIRONMENTAL FORENSICS 12 15% 3% 73

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
Beyond 16 Priority Pollutant PAHs: A Review of PACs used in Environmental Forensic Chemistry 2015 3 32 69%
PAH diagnostic ratios for the identification of pollution emission sources 2012 155 103 44%
PAHs in the Fraser River basin: a critical appraisal of PAH ratios as indicators of PAH source and composition 2002 1169 93 42%
Source Characterization of Polycyclic Aromatic Hydrocarbons by Using Their Molecular Indices: An Overview of Possibilities 2015 1 165 65%
Global patterns of polycyclic aromatic hydrocarbons (PAHs) in soil 2007 108 42 71%
Distribution of polycyclic aromatic hydrocarbons (PAHs) in rivers and estuaries in Malaysia: A widespread input of petrogenic PAHs 2002 238 88 74%
Oil spill identification 1999 236 113 57%
Stable carbon isotopic ratio measurement of polycyclic aromatic hydrocarbons as a tool for source identification and apportionment-A review of analytical methodologies 2013 6 66 68%
Native polycyclic aromatic hydrocarbons (PAH) in coals - A hardly recognized source of environmental contamination 2009 66 70 36%
Historical records of organic pollutants in sediment cores 2014 5 104 35%

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 EOALRSD 6 100% 0.2% 4
2 ETC 5 29% 0.5% 14
3 WATERSHED PROTECT DEV REVIEW 4 75% 0.1% 3
4 REFERENCE TRACE ORGAN 4 56% 0.2% 5
5 GEOCHEM ENVIRONM GRP 4 16% 0.9% 23
6 EMERGENCIES SCI TECHNOL SECT 3 39% 0.3% 7
7 EMERGENCIES SCI 3 27% 0.3% 9
8 QUIM AMBIENTAL BIOGEOQUIM 2 32% 0.2% 6
9 ENVIRONM ASSESSMENT MONITORING 2 67% 0.1% 2
10 GREAT LAKES STUDIES 2 18% 0.4% 10

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000147497 PASSIVE AIR SAMPLING//GAS PARTICLE PARTITIONING//PAHS
2 0.0000108476 ORGANOCHLORINE PESTICIDES//DDTS//HCHS
3 0.0000105116 IP25//RHIZOSOLENIA SETIGERA//HIGHLY BRANCHED ISOPRENOID ALKENES
4 0.0000104433 SMOKED MEAT PRODUCTS//PAH4//SMOKE FLAVOURING
5 0.0000094597 DISPERSED OIL//DEEPWATER HORIZON//COREXIT
6 0.0000086896 PROGRAMA POS GEOL GEOFIS MARINHA//AIRBORNE SAMPLES//BACTERIAL RESPIRATORY ACTIVITY
7 0.0000086352 EUROPEAN REG ECOHYDROL//ECOSYST ANAL//AQUAT TOXICOL ECOL SECT
8 0.0000073509 PASSAIC RIVER//COASTAL MARINE WATERS//S POLLUT CONTROL TECHNOL
9 0.0000072876 COPROSTANOL//ALKENONES//ORGANIC GEOCHEMISTRY
10 0.0000069591 PHOTOINDUCED TOXICITY//PHOTOENHANCED TOXICITY//PHOTOMODIFICATION