青藏高原西部、南部和东北部边界地区天然水的水化学性质及其成因

田原,余成群,查欣洁,高星,于明寨

Hydrochemical characteristics and factors controlling of natural water in the western, southern, and northeastern border areas of the Qinghai-Tibet Plateau

TIAN Yuan,YU Chengqun,ZHA Xinjie,GAO Xing,YU Mingzhai

表4 水样中人为输入的地球化学变量与中国国家饮用水和世界卫生组织标准中相关值的对比

Tab. 4 Values of anthropogenic input geochemical varaiables in waters compared with China's and WHO standards for drinking water

参数 边界地区 GB[42] WHO[48] 西部 南部 东北部 NO2- (mg/L) n.a. 0.02 0.08 - 3 NO3- (mg/L) 3.41 1.71 4.38 10 50 SO42- (mg/L) 46.91 74.45 24.53 250 250 PO43- (mg/L) n.a. n.a. n.a. - -