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TRANSFORMING         TRANSFORMING         TRANSFORMING
 SUSTAINABILITY REPORT  FY 2023                      COMMUNITIES           THE PLANET         THE WORKPLACE












 Air emissions and quality


 Air quality management and   the air quality at our sites so that   Air Emission (metric tonnes)*
 emissions control are issues that   effects of our operations can be
 affect a large number of stakeholders   evaluated in real time and suitable
 and need strong oversight and   interventions for maintaining   89,857
 regular monitoring. The efficient   mandated standards of air quality,   FY 2023  18,275   502,403
 management of air emissions from   can be taken. We do this with the
 our sites, their impact on the ambient   help of emission control    84,641
 air quality is a vital component of our   technologies and advanced   FY 2022  11,827   509,069
 sustainability strategy and crucial for   monitoring systems, which flag off
 fostering positive relationships with   any potential issues. We actively    66,305
 our neighbouring communities.   monitor SPM, sulphur oxides (SO ),   FY 2021   526,421    PM Emissions
 x
 and nitrogen oxides (NO ) as part of   19,693                                             SOx Emissions
                                                                                           NOx Emissions
 x
 Further, it is mandatory for us to   our ambient air quality monitoring   67,317
 comply with environmental   process. Additionally, lead emissions   FY 2020  508,206
 regulations on a variety of air   from our zinc operations, fluoride   11,215
 emissions like emissions of   emissions from our copper and
 particulate matter, sulphur dioxide   aluminium operations, and Polycyclic   SOx emissions have been recalculated based on revised SOx emission factor in FY23
 (SO ), nitrogen oxides (NO ), and   Aromatic Hydrocarbons (PAHs) from
 2
 x
 others. Non-compliance can result in   our aluminium operations are being
 fines, penalties, and legal   monitored to align them with our   Air quality improvements
 consequences for the company and   Environmental Management
 also disrupt regular operations.   Standard.  Operations/Units   Activities (Policies/Technological interventions etc.)
 Therefore, rigorous air emissions
 management is necessary as   Measures to enhance air quality  ESL   HFTR Installation in Sinter

                                            High Frequency rectifier transformer is installed in Sinter Plant to bring the
 significant operational and   As in other areas, our focus on air      emission below 100 mg/Nm3 by improving the frequency of Electrostatic
 reputational risks are involved.  emissions management goes well      Precipitator (ESP).
 beyond mere compliance. We are   HZL       Tail Gas Plant (TGT)
 Processes involved in mining, such as   using advanced technologies and      Installed in smelter to further cut down SO  emissions from stack.
                                                                              2
 drilling, processing, and   processes to minimize our emissions
 transportation, all have an impact on   and reduce our environmental   VAL Jharsuguda   Installation of Wheel Wash System

                                            Wheel Wash System improves the ambient air quality at Ash Handling Plant AHP
 air quality. We have established   impact. In 100% of our sites we have      & Coal Handling Plant CHP area during transportation has been improved and it
 systems for continuous monitoring of   met the compliance requirements.     meets NAAQS






















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