Journal of Environmental and Public Health / 2013 / Article / Tab 2

Review Article

The Distributional Characteristics of Heavy Metal in Jiangsu Province Shoal Sea

Table 2

Grade standard of and RI.

Pollution coefficient Pollution index RIPollution level

<40<150Light ecological risk
40–79150–299Middle ecological risk
80–159300–600Strong ecological risk
160–320>600Very strong ecological risk
>320Extremely strong ecological risk

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