div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=of-the-tuul-riverpdfaa-national-university-of-mongolia-00-school-of-earthhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: of the Tuul Riverpdf · NATIONAL UNIVERSITY OF MONGOLIA - 00 SCHOOL OF EARTH Tuul SCIENCES River Water 1 Introduction quality assessment of the in Ulaanbaatar city Mongolia loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsmxreader034viewer20220512025a74ceef7f8b9a0d558beee6html5thumbnails1jpg width=140 height=200 divdiv