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©The Author(s) 2000.
World J Gastroenterol. Aug 15, 2000; 6(4): 572-576
Published online Aug 15, 2000. doi: 10.3748/wjg.v6.i4.572
Published online Aug 15, 2000. doi: 10.3748/wjg.v6.i4.572
Table 5 Contrast in water quality before and after the change in water
Test item (ppm) | NO2- | Humic acid | COD | DO | NH4 |
1 | 0.0224 | 0.53 | 44.24 | 6.10 | 0.34 |
2 | 0.0106 | 0.05 | 0.34 | 8.21 | 0.07 |
- Citation: Lin NF, Tang J, Ismael HSM. Study on environmental etiology of high incidence areas of liver cancer in China. World J Gastroenterol 2000; 6(4): 572-576
- URL: https://www.wjgnet.com/1007-9327/full/v6/i4/572.htm
- DOI: https://dx.doi.org/10.3748/wjg.v6.i4.572