1. What is the maximum allowable annual average concentration of Sulfur Dioxide (SO₂) in ambient air according to Punjab Environmental Quality Standards?
(A) 50 µg/m³
(B) 120 µg/m³
(C) 100 µg/m³
(D) 80 µg/m³
2. Which method is used to measure annual average Sulfur Dioxide (SO₂)?
(A) Gas Chromatography
(B) Ultraviolet Fluorescence
(C) Infrared Absorption
(D) β-Ray Absorption
3. The 24-hour concentration limit for Oxides of Nitrogen (NO) is:
(A) 20 µg/m³
(B) 30 µg/m³
(C) 40 µg/m³
(D) 50 µg/m³
4. Which pollutant has a 1-hour limit of 130 µg/m³ and is measured using Non-dispersive UV absorption?
(A) SO₂
(B) CO
(C) PM₁₀
(D) Ozone (O₃)
5. What is the annual average concentration of Suspended Particulate Matter (SPM)?
(A) 250 µg/m³
(B) 300 µg/m³
(C) 360 µg/m³
(D) 400 µg/m³
6. Which method is recommended for measuring Respirable Particulate Matter (PM₁₀)?
(A) Gravimetric
(B) β-Ray Absorption
(C) UV Fluorescence
(D) Gas Chromatography
7. The 24-hour concentration limit for PM₂.₅ is:
(A) 35 µg/m³
(B) 25 µg/m³
(C) 50 µg/m³
(D) 75 µg/m³
8. Which method is used to determine Lead (Pb) concentration in ambient air?
(A) Non-dispersive Infrared
(B) β-Ray Absorption
(C) ASS Method using EPM 2000 or equivalent filter paper
(D) Ultraviolet Fluorescence
9. The 1-hour limit for Carbon Monoxide (CO) concentration is:
(A) 5 mg/m³
(B) 8 mg/m³
(C) 12 mg/m³
(D) 10 mg/m³
10. According to Punjab Environmental Standards, the annual arithmetic mean for measurement of pollutants is based on at least:
(A) 52 measurements per year
(B) 104 measurements per year
(C) 156 measurements per year
(D) 208 measurements per year