Volume 15, Issue 57, 2026 (January – March)
Research Article
Industrial Air pollutants and Chemical Control Strategies: Insight from NCR-Delhi and Haryana
Hiteshi Gahlawat, Ravinder Singh
Keywords: Industrial pollution; OCEMS; GRAP; CAQM; HSPCB; NCAP; NCR-Delhi; Haryana; DG
emissions; hotspot management.
DOI:10.37273/chesci.cs032056121
Abstract
The present case study evaluates government policies and implementation steps used to control pollutants from factories in NCR-Delhi and Haryana. The study integrates primary survey data (factory managers, workers, pollution officials, residents) with up-to-date secondary sources including CAQM orders, CPCB/National Clean Air Programme material, CSE industrial-assessment reports, Haryana’s State Environment Plan (SEP), and recent technical studies on diesel generator emissions. The paper finds that while Delhi-NCR’s interventions prioritize real-time monitoring (OCEMS), emergency responses (GRAP), and hotspot action plans, Haryana has developed a strategic State Environment Plan focused on non-CO₂ pollutants and is actively upgrading industrial monitoring but faces implementation gaps (monitoring station downtime, under-utilised NCAP funds in some districts, and persistent DG pollution). The study concludes with targeted recommendations: universal OCEMS for medium industries, outcome-based emission standards, finance for SME upgrades, stronger cross-state data integration, and community-facing transparency dashboards.
References
[1] Press Information Bureau / CAQM press release on OCEMS identification (PIB / CAQM, 2025). Press Information Bureau
[2] Commission for Air Quality Management (CAQM). Graded Response Action Plan (GRAP) orders and GRAP document. Commission for Air Quality Management+1
[3] Government of NCT of Delhi Air Pollution Control at Pollution Hotspots (Hotspot list and action plans). Department of Environment Delhi+1
[4] Haryana State Environment Plan (SEP, 2025) IGSD/TERI / HSPCB collaboration announcement and SEP document. igsd.org+1
[5] CSTEP study and press reporting — DG emissions in Haryana (2022 estimate: ~1,121 tonnes PM₂.₅). The Times of India
[6] Press reporting on NCAP fund use in Faridabad (under-utilisation and sectoral spend patterns). The Times of India
[7] CPCB / CAQM monitoring reports ambient monitoring data and gaps (CPCB AQ-NCR reports). Central Pollution Control Board+1
[8] Centre for Science and Environment (CSE) assessment of industrial air pollution in Delhi-NCR (scoping/cluster assessments). cseindia.org+1
[9] CAQM website & policy pages on regional policy and OCEMS cell overview.