NHAI issues SOP to curb air pollution from highway works in Delhi-NCR
NHAI said on 29 October 2025 that it has issued a Standard Operating Procedure to its Delhi-NCR field offices to curb air pollution from National Highway construction and related activities.
Summary
The National Highways Authority of India (NHAI) said on 29 October 2025 that it has issued a detailed Standard Operating Procedure (SOP) to its Delhi-NCR field offices to curb air pollution from National Highway construction and related work. Measures include mechanised road sweeping, greening of medians and interchanges, Miyawaki-method plantations along highways, anti-smog guns, all-day water sprinkling at construction sites, and covering construction material with green nets. The SOP also fixes responsibility for monitoring and compliance through audits and inspections.
Key facts
- Announced
- 29 Oct 2025, NHAI
- Area
- Delhi-NCR field offices
- Measures
- Mechanised sweeping, median greening, Miyawaki plantation, anti-smog guns, water sprinkling, green nets
- Compliance
- Audits and inspections; responsibilities for officers, contractors, concessionaires
Practice MCQs 1 questions
NHAI's SOP of October 2025 to curb air pollution on Delhi-NCR highways includes forest creation along highways using which plantation method?
Show answer
Correct answer: D — Miyawaki method
The SOP includes implementing the Miyawaki method of plantation for forest creation along the highways.