Turns out much of it is from drinking water treatment.

调查结果显示，大部分的硫化物于饮用水的处理。

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

在饮用水未经适当处理及卫状况恶劣的情况下会迅速传播。

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

还导致饮用水处理的额外经济成本。

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

这一现象的后果包括改变态系统平衡、降低土壤肥力和增加饮用水处理成本。