GATE ES · 2022 · ES
Question 64: Air quality management
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Question 64
ESNAT2 marksNeeds review
A ground level source emits 1000 g per day of SO
. In vicinity of the source, ambient temperature is measured at 10 m and 110 m as 25°C and 24.5°C, respectively. The mean wind speed is found to be 2 m per second. The dispersion coefficients at 1000 m downwind distance from the source are given in table below: | Dispersion coefficients (in m) | | |
|---|---|---|---|
| Stable | Neutral | Unstable |
Crosswind direction | 50.5 | 80.0 | 156.0 |
Vertical direction | 21.4 | 41.5 | 110.2 |
Estimated ground level concentration (in μg/m
, rounded off to two decimal places) of SO
at a downwind distance of 1000 m (at the plume centerline) from the source is __________.Log in to check the answer
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2022ES
GATE ES 2022 · Paper 1
Environmental Science and Engineering · Original paper archive
- Section
- Environmental Science and Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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