https://www.vedomosti.ru/library/news/2007/05/10/kitaj-priznaet-chto-reka-sungari-stanovitsya-vse-bolee-zagryaznennoj?utm_source=telegram&utm_campaign=share&utm_medium=social&utm_content=kitaj-priznaet-chto-reka-sungari-stanovitsya-vse-bolee-zagryaznennoj