This chemical pollution has two sources: the factories which dump polluted water directly into the river and the local community which dumps untreated humanwastes into the river.
这种化学污染有两个来源:直接把污水倒进河里的工厂,和把未经处理的人类垃圾倒进河里的本地社区。
2
Contrary to the conventional view that human activities damage the environment, Glaser says, "Black carbon combined with humanwastes is responsible for the richness of Terra Preta soils."
与人类活动破坏环境的传统观点相反,格拉泽说:“与人类排泄物结合的黑碳是黑土高地土壤肥沃的原因。”
3
Environmental engineers are concerned with the disposal of humanwastes.