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Table 2 Comparison of metal concentrations (mg kg−1) in roadside plants from this study with data available from some previous studies

From: Heavy metals accumulation in suburban roadside plants of a tropical area (Jengka, Malaysia)

Location Area Species Heavy metal (mg kg−1) References
Fe Cu Pb Cd
Jengka, Malaysia Suburban AE 1132.7 46.4 4.39 0.12 This study
CO 1731.5 57.3 3.66 0.08
LC 1908.3 73.6 8.16 0.29
Rural (control) AE 500 20.2 1.3 0.03 This study
CO 650 33.7 1.7 0.02
LC 855 44.5 2.1 0.05
Ramrikawn, India Suburban LC 20 15 NA NA Rai (2016)
Pontian, Malaysia Suburban AE NA NA NA 0.48 Roslan et al. (2016)
Akure, Nigeria Suburban CO NA NA 30.9 NA Aiyesanmi et al. (2012)
Kanchanaburi, Thailand Suburban CO NA NA 38.1 0.9 Tanhan et al. (2007)
  1. NA no available data, AE Athyrium esculentum, CO Chromolaena odorata, LC Lantana cámara