Table 3: Comparison of the comprehensive seawater quality evaluation results.

Point
Number
Variable fuzzy evaluation methodFuzzy comprehensive evaluationBP neural NetworkFuzzy genetic neural Network




Average valueEvaluation grade

Q11.4641.5931.3091.4711.46Between I and II, tending toward IGrade IIGrade IIGrade II
Q21.6451.8941.3271.7621.66Between I and II, tending toward IIGrade IIGrade IIIGrade III
Q31.5971.7611.5041.6941.64Between I and II, tending toward IIGrade IIGrade IIGrade II
Q41.3541.4271.2311.3571.34Between I and II, tending toward IGrade IGrade IIGrade I
Q51.6141.8231.4651.7071.65Between I and II, tending toward IIGrade IIGrade IIIGrade III
Q61.4921.7051.3041.5531.51Between I and II, tending toward IIGrade IIGrade IIGrade II
Q71.6361.8021.4911.7161.66Between I and II, tending to IIGrade IIGrade IIGrade II
Q81.4511.5391.3701.4971.46Between I and II, tending toward IGrade IGrade IIGrade II
Q91.5121.6451.3991.5861.54Between I and II, tending toward IIGrade IIGrade IIGrade II
Q101.2731.3521.1241.2291.24Grade IGrade IGrade IGrade I
Q111.4021.5071.3091.5101.43Between I and II, tending toward IGrade IGrade IIGrade II
Q121.4631.6111.3481.5381.49Between I and II, tending toward IGrade IGrade IIGrade II
Q131.4761.5521.4531.6021.52Between I and II, tending toward IIGrade IGrade IIGrade II
Q141.4211.5291.3461.5571.46Between I and II, tending toward IGrade IGrade IIGrade II