NCAP 对 131 个城市进行了排名，在 47 个人口超过 100 万的城市中，德里排名第 9；NCAP 的目标是到 2024 年将 PM 降低 20-30%。 131 cities ranked under NCAP, Delhi 9th among 47 cities over 10 lakh population; NCAP aims to reduce PM by 20-30% by 2024.

印度环境、森林和气候变化部 (MoEF&CC) 对国家清洁空气计划 (NCAP) 下的 131 个城市进行了排名，在人口超过 100 万的 47 个城市中，德里排名第 9。 131 cities under the National Clean Air Programme (NCAP) have been ranked by the Ministry of Environment, Forest & Climate Change (MoEF&CC), with Delhi ranking 9th in a group of 47 cities with populations over 10 lakh. NCAP 于 2019 年 1 月启动，旨在通过一项长期、有时限的国家空气污染防治战略，到 2024 年将 PM 浓度降低 20-30%。 Launched in January 2019, NCAP aims to reduce PM concentration by 20-30% by 2024 through a long-term, time-bound national strategy for air pollution prevention, control, and abatement.