Skip to main content

Table 6 Classification of modified degree of contamination

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

Modified degree of contamination Contamination status
mCd < 1.5 Nil to a very low degree of contamination
1.5 ≤ mCd < 2 Low degree of contamination
2 ≤ mCd < 4 A moderate degree of contamination
4 ≤ mCd < 8 A high degree of contamination
8 ≤ mCd < 16 A very high degree of contamination
16 ≤ mCd < 32 An extremely high degree of contamination
mCd ≤ 32 Ultrahigh degree of contamination
  1. Abrahim and Parker (2008), Bramha et al. (2014), Mazurek et al. (2017), Sivakumar et al. (2016)