Global survey: Wastewater extensively used in agriculture

WASHINGTON, Aug. 18 (Xinhua) — A new 53-city survey conducted by the International Water Management Institute (IWMI) indicates that most cities are using untreated or partially treated wastewater for agriculture. Wastewater use is critical to farmers’ incomes and urban food security but raises health concerns, IWMI said in a statement released on Monday. In over 70 percent of the cities studied, more than half of urban agricultural land is irrigated with wastewater that is either raw or diluted in streams.

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