8-37  Sea Area with Water Quality Not Reaching Standard of Grade 1 (2014)|8-37SeaAreawithWaterQualityNotReachingStandardofGrade1(2014)|(sq.km)|Item|SeaAreawith|SeaAreawith|SeaAreawith|SeaAreawith|WaterQuality|WaterQuality|WaterQuality|WaterQuality|atGrade2|atGrade3|atGrade4|BelowGrade4|Total|43280|42740|21550|41140|BohaiSea|8180|6600|3770|5750|HuanghaiSea|12510|13540|4990|2970|DonghaiSea|17470|10700|11200|28330|NanhaiSea|5120|11900|1590|4090