Turns out much of it is from drinking water treatment.

调查结果显示，大部分硫化物都产生于水处理。

It thrives where there is poor water treatment, poor sanitation and hygiene.

水未经适当处理及卫生状恶劣下会迅速传播。

It also results in additional economic costs for drinking water treatment.

它还导致水处理额外经济成本。

The consequences of this phenomenon include altered ecosystem balance, reduced soil fertility, and increased costs for drinking water treatment.

这一现象后果包括改变生态系统平衡、降低土壤肥力和增加水处理成本。