Year | Total | Industrial pollution | Domestic use | COD in wastewater emissions | Ammonia residues | Industrial COD | Industrial ammonia |
2002 | 43,950 | 20,720 | 23,230 | 13.66 | 1.28 | 5.84 | 0.421 |
2003 | 46,000 | 21,240 | 24,760 | 13.33 | 1.29 | 5.12 | 0.404 |
2004 | 48,240 | 22,110 | 26,130 | 13.39 | 1.33 | 5.09 | 0.422 |
2005 | 52,450 | 24,310 | 28,140 | 14.14 | 1.49 | 5.54 | 0.525 |
2006 | 53,680 | 24,020 | 29,660 | 14.28 | 1.41 | 5.41 | 0.425 |
2007 | 55,680 | 24,660 | 31,020 | 13.81 | 1.32 | 5.11 | 0.341 |
2008 | 57,170 | 24,170 | 33,000 | 13.20 | 1.27 | 4.57 | 0.297 |
2009 | 58,970 | 23,450 | 35,520 | 12.78 | 1.22 | 4.40 | 0.273 |
2010 | 61,730 | 23,750 | 37,980 | 12.38 | 1.23 | 4.34 | 0.273 |
2011 | 65,920 | 23,090 | 42,790 | 24.99 | 2.60 | 3.54 | 0.281 |
2012 | 68,480 | 22,160 | 46,270 | 24.23 | 2.53 | 3.38 | 0.264 |
2013 | 69,544 | 20,984 | 48,511 | 23.53 | 2.46 | 3.19 | 0.246 |
2014 | 71,620 | 20,530 | 51,030 | 22.94 | 2.32 | 3.11 | 0.232 |