Tata Steel has undertaken several initiatives, which have resulted in considerable reduction in stack emission as evidenced in the figure in the box alongside. Indian standards (norms) for SO₂, NOx, & PM for stacks in steel plants are furnished below along with actual values monitored during the reporting period. Total emission load for past two years are also furnished below. The emission loads are calculated based on the actual measurement of PM, SO₂ & NOx. The flue gas volume for Coke Oven, Power Houses chimneys is based on calculations based on carbon inputs to the boilers and Coke Ovens. For all other stacks the actual volume flow is measured. The emission for crude gas bleeding & coke quenching towers are estimated based on industry norms. On an average two-sample measurement are taken per point source in a year. Emissions from A-F BF Cast House and CAL incinerator stacks have not been included in this report.

Emission load from Steel Works - tonnes/annum Parameter 01-02 02-03 03-04 Particulate Matter, tpa 6396 5980 5832 Sulphur-di-oxide, tpa 17941 11081 9949 Oxides of Nitrogen, tpa 12247 8025 7534 The emission loads do not include fugitive emissions. These emissions represent approximately 90% emissions from the scope of the report. The gross emissions loads are presented only for the Steel Works. The loads for other units will be provided in subsequent years. This methodology for monitoring and reporting is described in Annexure-VI.