Esophageal Cancer
Copyright ©The Author(s) 2003.
World J Gastroenterol. Jun 15, 2003; 9(6): 1187-1190
Published online Jun 15, 2003. doi: 10.3748/wjg.v9.i6.1187
Table 3 Three nitrogenous compounds (mg/L) in well water before and after well reconstruction
No. of wellNitrate nitrogen
Nitrite nitrogen
Ammonia nitrogen
BeforeAfterBeforeAfterBeforeAfter
12#14.96218.00970.00770.00330.01310.0048
14#8.98901.90990.02080.00670.01270.0053
29#18.49290.00000.29290.01000.04590.0087