<h1>Air quality standards: Indore can meet national limits with targeted measures reducing vehicle emissions and road dust.</h1> Indore's ambient air quality has improved and can fully comply with national air quality standards within a year through modest additional measures. Current levels of PM10 and PM2.5 remain marginally above limits, and a study attributes the majority of pollution to vehicular emissions and road dust, indicating that traffic and dust-control interventions are the primary compliance levers.