Environment & Ecology · Environmental Pollution & Control
Under the Graded Response Action Plan (GRAP), which of the following PM2.5 and PM10 concentration thresholds respectively (in μg/m3, persisting for 48+ hours) trigger the 'Severe+' (Stage IV) protocol that halts construction and activates vehicle rationing schemes?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1>300 and >500✓
- 2>250 and >430
- 3121-250 and 351-430
- 461-120 and 101-350
Correct answer
>300 and >500
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Environment & Ecology?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Environmental Pollution & Control MCQs →Want more practice questions on Environmental Pollution & Control?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Environment & Ecology · Environmental Pollution & Control