|
The study conducted Apparent oxygen content (AOI) and pH indicators as red tide warning . According to the experimental verification and research results , the value of the red tide warning indicators and evaluation , which AOI red tide warning value 0.5 mg/dm3 , the red tide in the critical value of 1.5 mg/dm3 , the red tide determine the value of 2.0 mg/dm3 . pH red tide warning value of 8.16 , the red tide in the critical value of 8.26 , the red tide determine the value of 8.32 . In this study, the red tide strength is divided into three levels , namely mild, moderate and severe , the AOI evaluation standard red tide strength mild 2.0mg/dm3-5.0 mg/dm3, when the red tide in intensity moderate 5.0 mg/dm3- 10.0 mg/dm3, as when a severe red tide strength gt; 10mg/dm3. pH evaluation standard red tide strength mild 8.16-8.60 , when red tides strength moderate for 8.60-9.14 , severe red tide strength gt ; 9.14 .
|