Sample ID

PAH concentration

Control

231.86 ± 22.499

Choba

404.16 ± 69.940

Elimgbu

283.81 ± 22.932

Mgbuoshimini

227.73 ± 2.352

Rukpokwu

315.26 ± 28.842

Rumuodara

537.22 ± 2.650

Rumuokwuta

330.65 ± 24.289

Rumuomasi

257.54 ± 55.446

Trans Amadi

WHO standard

214.83 ± 14.875

1.00