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Table 7 Membership calculation (condition 3)

From: Risk assessment methodology for iron stability under water quality factors based on fuzzy comprehensive evaluation

Water quality factorValueSlight risk (vslr)Small risk (vsmr)General risk (vger)Greater risk (vgrr)Significant risk (vsir)
Chloride1808.2 mg/L00001
Sulfate267.99 mg/L00001
DOC3.83 mg/L0.54250.4575000
pH5.8400001