Skip to main content

Table 3 Classification of contamination factor

From: Estimation of pollution indices and hazard evaluation from trace elements concentration in coastal sediments of Kerala, Southwest Coast of India

Contamination factor Contamination level
CF < 1 Low contamination
1 ≤ CF < 3 Moderate contamination
3 ≤ CF < 6 Considerable contamination
CF > 6 Very high contamination
  1. Rudnick and Gao (2003), Salah et al. (2012)