This chemical pollution has two sources: the factories which dump polluted water directly into the river and the local community which dumps untreated human wastes 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
Beyond New York's financial advantage, the appeal to Asian buyers includes a large Chinese-speaking community in Manhattan and in the outer boroughs, as well as a lack of suffocating pollution.
Individual and population are good indicators of environment pollution, and there are still some questions about the guild monitoring and community monitoring.