frequent harmful algal bloom areas
Harmful algal bloom HAB
harmful algal bloom hazard
Harmful algal bloom species
harmful algal blooms HAB
harmful algal blooms HABs
algal bloom
藻类大量繁殖
藻类水华
藻类过量繁殖
藻类过量繁殖现象
水华
藻华
藻花
蓝藻水华
赤潮
Cyanophyta algal bloom monitoring
benefical or harmful element
concentration of harmful substance
danger and harmful factor
dangerous and harmful factors
detection of harmful substances
environmentally harmful