Today we're looking for orthophosphate, the main culprit in Lake Erie's recurring toxic algae blooms.

今天我们要寻找是正形磷，是伊利湖不断繁殖有毒藻类罪魁祸首。

The orthophosphate levels in the Maumee River have been rising steadily since the mid-1990s and algae blooms have become the new normal.

自上世纪90年代中，毛梅河正磷水平一直在稳步上升，藻类大量繁殖已成为新常态。