NOx
|
SOx
|
BOD
|
COD
|
|
|---|---|---|---|---|
| Fiscal 2002 | 457 | 156 | 140 | 420 |
| Fiscal 2003 | 351 | 52 | 142 | 337 |
| Fiscal 2004 | 288 | 64 | 135 | 311 |
| Fiscal 2005 | 274 | 59 | 142 | 158 |
| Fiscal 2006 | 167 | 48 | 280 | 279 |
| Fiscal 2007 | 182 | 35 | 205 | 113 |
| Fiscal 2008 | 176 | 8 | 133 | 73 |
| Fiscal 2009 | 174 | 11 | 141 | 39 |
| Fiscal 2010 | 187 | 9 | 254 | 96 |
| Fiscal 2011 | 163 | 9 | 252 | 62 |