The ambient air quaility standard (24 hours average) for lead in industrial area is

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Q: 99 (SSC/NA)
The ambient air quaility standard (24 hours’ average) for lead in industrial area is

question_subject: 

Science

question_exam: 

SSC

stats: 

0,3,4,0,3,1,3

keywords: 

{'ambient air quaility standard': [1, 0, 0, 0], 'average': [1, 1, 0, 1], 'lead': [7, 1, 11, 11], 'hours': [7, 2, 16, 9], 'm3': [1, 2, 2, 1]}

The correct answer is option 4, which is 1.5 pg/m3. The ambient air quality standard refers to the acceptable level of lead in the air over a 24-hour period in an industrial area. Lead is a harmful substance that can have detrimental effects on human health and the environment. It is important to monitor and regulate the levels of lead in the air to ensure the well-being of individuals in the area. Options 1, 2, and 3 are lower than the correct answer, suggesting that they would not meet the standard for lead in industrial areas. Alert - The correct answer should be 1.5 pg/m3, which is option 4.