Question : The ambient air quality standards (24 hours average) for lead in industrial areas are:
Option 1: 0.65 µg/m3
Option 2: 0.75 µg/m3
Option 3: 1.0 µg/m3
Option 4: 1.5 µg/m3
Correct Answer: 1.5 µg/m 3
Solution : The correct answer is 1.5 µg/m 3.
The ambient air quality standard for lead in an industrial area is specified as 1.5 µg/m³ for a 24-hour average, which means that the concentration of lead in the air should not exceed this limit over 24 hours to comply with the National Ambient Air Quality Standards (NAAQS).
Related Questions
Know More about
Staff Selection Commission Multi Tasking ...
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Get Updates BrochureYour Staff Selection Commission Multi Tasking Staff Exam brochure has been successfully mailed to your registered email id “”.