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2008年四川“5.12”地震对人民生命和生活造成巨大的破坏。为对震后水环境的现状进行一个面上的调查,2008年6月对受地震影响四川局部地区的水取样分析。对66个水样中8大离子的分析结果表明,水体中阳离子的含量特征均为Ca2+>Mg2+>Na+>K+,而阴离子平均含量依次为SO42->NO3->Cl->PO43-。Ca2+在水井中的含量最高,PO34-在水体中含量最低,66个采样点中有16个水样未检出PO43-。井水中离子含量在所有采样区中最高。除PO43-含量在河流中的含量最高外,其余各离子在水井中的含量居7个分类采样区之首;地裂缝渗出的水中Ca2+、Na+、Cl-仅次于井水含量居第二。在空间位置上水体中Na/Ca比值在0.106上下波动。
The “5.12” earthquake in Sichuan in 2008 caused tremendous damage to people’s lives and lives. In order to investigate the current situation of the water environment after the earthquake, in June 2008, the water sampling analysis of some areas affected by the earthquake in Sichuan Province was conducted. The analysis of 8 large ions in 66 water samples showed that the content of cations in water was Ca2 +> Mg2 +> Na +> K +, while the average content of anions was SO42-> NO3-> Cl-> PO43-. Ca2 + was the highest in wells, PO34- was the lowest in water, and PO43- was not detected in 16 of the 66 samples. The well water has the highest ion content in all sample zones. Except PO43-content was the highest in river, the content of other ions in the wells was the first of seven classification sampling areas. Ca2 +, Na + and Cl- in the water exuded from ground fissures were second only to well water content . The Na / Ca ratio in the water body fluctuated from 0.106 up to down in space.