Comment by DoingIsLearning

> Another potential contamination of EE2 is aquaculture. Based on a recent investigation, high concentrations of EE2 ranging from <0.3–7.67 ng/L in estuarine water nearby aquaculture activities in Malaysia, were re- ported (Ismail et al., 2019)

Why is aquaculture waste water contributing to EE2 contamination?

What step in aquaculture would create this..