Atmospheric Conditions and Air Pollution
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Questions and Answers

What is the primary driver of atmospheric circulation?

  • Atmospheric stability
  • Wind direction
  • Energy from the sun and earth's rotation (correct)
  • Precipitation and humidity
  • What type of atmospheric stability occurs when the temperature falls faster than the dry adiabatic lapse rate?

  • Absolutely unstable (correct)
  • Neutral stability
  • Absolutely stable
  • Conditionally unstable
  • What is the approximate moist adiabatic lapse rate in the lower troposphere?

  • 10°C/km
  • 5.4 °F/1000 ft
  • 1.00 °C/100 m
  • 6°C/km (correct)
  • What is the effect of a lake breeze on plume dispersion?

    <p>It decreases dispersion</p> Signup and view all the answers

    What occurs when the ambient lapse rate is less than the dry adiabatic lapse rate?

    <p>Absolutely stable conditions</p> Signup and view all the answers

    What is the primary factor affecting air pollution in a region?

    <p>Wind direction and speed</p> Signup and view all the answers

    What is the assumption of the Point Source Gaussian Plume Model regarding the terrain?

    <p>It is flat and unobstructed</p> Signup and view all the answers

    What is the formula used to calculate the effective stack height in the Point Source Gaussian Plume Model?

    <p>H = h + DH</p> Signup and view all the answers

    What is the category of atmospheric stability characterized by a high rate of vertical mixing?

    <p>A - Extremely Unstable</p> Signup and view all the answers

    What is the purpose of Holland's formula in the Point Source Gaussian Plume Model?

    <p>To calculate the plume rise</p> Signup and view all the answers

    What is the unit of measurement for the emission rate of pollutant (E) in the Point Source Gaussian Plume Model?

    <p>g/s</p> Signup and view all the answers

    What is the correction formula used to estimate the wind speed at the virtual stack height from the ground wind speed?

    <p>u2 = u1 × (z2 / z1)^p</p> Signup and view all the answers

    What is the atmospheric condition when the lapse rate is less than Г?

    <p>Stable</p> Signup and view all the answers

    What type of temperature inversion is caused by the descent of a layer of air within a high-pressure air mass?

    <p>Subsidence inversion</p> Signup and view all the answers

    What is the term for the trapping of pollutants close to the surface due to atmospheric conditions?

    <p>Plume trapping</p> Signup and view all the answers

    What is the temperature lapse rate that indicates an unstable atmosphere?

    <p>Greater than 1.00 °C/100 m</p> Signup and view all the answers

    What is the name of the graph used to display the relationship between temperature and altitude?

    <p>Tephigram</p> Signup and view all the answers

    What is the term for the release of pollutants into the atmosphere, resulting in a disaster?

    <p>Air quality disaster</p> Signup and view all the answers

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