Air Pollution evaluates how a company prevents, measures and controls the release of harmful substances - particulate matter (PM₁₀, PM₂.₅), nitrogen oxides (NOₓ), sulphur oxides (SOₓ), volatile organic compounds (VOCs), hazardous air pollutants (HAPs), ozone-depleting substances (ODS), heavy-metal fumes and greenhouse-gas co-pollutants - into the atmosphere from its operations and value chain. It covers:

• identification of stationary (boilers, kilns, stacks) and mobile (fleets, material-handling equipment) emission sources;
• implementation of best-available abatement technologies (electrostatic precipitators, fabric filters, scrubbers, catalytic/thermal oxidisers, low-NOₓ burners, vapour-recovery units);
• fugitive-emission controls for solvents, refrigerants and dust (sealed systems, leak-detection-and-repair, enclosure & extraction, dust suppression);
• continuous or periodic monitoring, emission-factor estimation and compliance with ambient-air and point-source standards (e.g., EU Industrial Emissions Directive, US Clean Air Act, IFC EHS Guidelines);
• tracking and disclosure of pollutant loads, exceedances and improvement targets in alignment with frameworks such as GRI 305-7, EU ESRS E2 Pollution and SDG 3/11.