harmful algal blooms HAB
frequent harmful algal bloom areas
Harmful algal bloom HAB
harmful algal bloom hazard
Harmful algal bloom species
benefical or harmful element
concentration of harmful substance
danger and harmful factor
dangerous and harmful factors
detection of harmful substances
environmentally harmful
forestry harmful biology
harmful
有害
危害
有
赤潮
不良
赤
敌害
有毒
有害辐射
不利
有害的
药害
危害性