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Table 1 Top-20 chemicals covered by environmental journals during 2000-2009.

From: The Matthew effect in environmental science publication: A bibliometric analysis of chemical substances in journal articles

Rank Substance name Number of links 2000-2009 Fraction of total titles published > 2000 Average number of citations*
1 Copper 9573 53 11.5
2 Lead 8926 42 9.9
3 Zinc 8323 45 11.9
4 Cadmium 8199 41 11.7
5 Iron 6948 60 13.6
6 Nickel 5395 49 13.0
7 Chromium 5123 54 12.3
8 Arsenic 4626 74 14.4
9 Mercury 4399 51 11.8
10 Manganese 4311 53 10.8
11 1,1'-Biphenyl 3897 42 14.5
12 Aluminum 3416 31 6.5
13 Benzo[a]pyrene 2842 66 9.1
14 Phenanthrene 2669 72 12.4
15 Pyrene 2447 43 9.8
16 Naphthalene 2206 53 13.4
17 Ethanol 2197 42 8.8
18 Cobalt 2143 49 10.1
19 Benzene 2113 47 10.1
20 Fluoranthene 2091 54 8.3
   Sum = 91,844 Average = 51 Average = 11.2
  1. Number of article links from SciFinder for 2000-2009, the relative number of publications during this decade compared to the total number since 1900, and the average number of citations per article for the given substance during the period 2000-2009 from the Web of Science.