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Table 3 The top ten ranking of subject categories for published articles associated with solid waste

From: The Arab world’s contribution to solid waste literature: a bibliometric analysis

SCRa Subject categories n (%)b
1st Environmental sciences 175 (45.8)
2nd Environmental engineering 111 (29.1)
3rd Energy fuels 45 (11.8)
4th Applied microbiology and biotechnology 44 (11.5)
5th Chemical engineering 35 (9.2)
6th Civil engineering 32 (8.4)
7th Water resources 31 (8.1)
8th Agricultural engineering 24 (6.3)
9th Applied chemistry 14 (3.7)
9th Soil science 14 (3.7)
  1. SCR Standard Competition Ranking
  2. aEqual areas of interest have the same ranking number, which leaves a gap in the ranking numbers
  3. bTotal exceeds 100 % as data are overlapping due to multidiscipline interactions