In 2007 the Yellow River Conservancy Commission, a government agency, surveyed 13,000 kilometres( 8,000 miles) of the river and its tributaries and concluded that a third of the water is unfit even for agriculture.
2007年,政府组织黄河保护委员会调查了13,000公里(8,000英里)黄河及其支流,结论是三分之一水域不甚健康,甚至无法用于农业生产。