<h1>Study warns diesel generator emissions create urban hotspots, recommends mandatory testing, scrappage, solar incentives and cleaner fuel mandates</h1> A research study found widespread PM2.5, black carbon and NOx emissions from diesel generator sets, identifying several urban districts as high-emission hotspots and noting many older or poorly maintained units likely exceed Central Pollution Control Board standards. The report projects growth in the DG market that could heighten public-health harms absent intervention and recommends policy measures including mandatory emission testing, a national scrappage scheme, incentives for rooftop solar with storage, subsidies for cleaner CPCB-IV+ or gas-based generators, and mandates to favor gas-based units where pipeline infrastructure expands, raising foreseeable regulatory and compliance obligations.