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3 青藏高原边界地区超过饮用水标准的天然水水样分布

Tab. 3 Distribution of natural water samples exceeding the drinking water standards in border areas of Qinghai-Tibet Plateau

参数 GB[42] WHO[48] 浓度超过饮用水标准的数量 西部边界 南部边界 东北部边界 pH 6.5~8.5 6.5~9.5 9 (50%) 0 0 TDS 1000 1000 0 0 0 TH 450 500 0 4 (7.5%) 1 (5.9%) Ca2+ - 300 0 0 0 Mg2+ - 300 0 0 0 Na+ 200 200 0 0 0 Cl- 250 250 0 0 0 SO42- 250 250 0 6 (11%) 0 NO3- 10 50 1 (5.6%) 1 (1.9%) 1 (5.9%)