Delhi records best July AQI since 2018 at 78
On 31 July 2025, the Environment Ministry said Delhi's average AQI for July 2025 was 78 ('Satisfactory'), the best for the month since 2018, with 29 'Satisfactory' days.
Summary
Delhi recorded its best average Air Quality Index (AQI) for July since 2018 at 78 ('Satisfactory') in July 2025, cleaner even than in the Covid-19 lockdown year 2020, the Environment Ministry said on 31 July 2025. July 2025 also had 29 'Satisfactory' days (AQI 51–100), the highest for the month in that period. The average AQI for January–July 2025 was 184, against 204 in 2024, and the period did not have a single day with average AQI above 400 ('Severe' or 'Severe+'). The Ministry credited favourable weather and efforts by different stakeholders.
Key facts
- July 2025 average AQI
- 78 ('Satisfactory'); best since 2018
- Earlier Julys
- 104 (2018), 84 (2020), 96 (2024)
- Satisfactory days, July 2025
- 29 (17 in July 2024)
- Jan–July 2025 average
- 184 (204 in 2024)
- Severe days, Jan–July 2025
- None
Practice MCQs 2 questions
What was Delhi's average AQI for July 2025, the best for the month since 2018, as reported on 31 July 2025?
Show answer
Correct answer: B — 78
The Environment Ministry said July 2025 recorded an average AQI of 78, in the 'Satisfactory' category.
How many 'Satisfactory' AQI days did Delhi record in July 2025?
Show answer
Correct answer: D — 29
July 2025 had 29 'Satisfactory' days (AQI 51–100), the highest since 2018.