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Measuring Particle Pollution ITEP Air Quality Training Lower Kalskag 2014. Mansel Nelson & Bob Morgan ITEP & ADEC. What Are We Measuring And Why?. Particles suspended in air that can have a significant effect on a person’s health and welfare.

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Measuring Particle Pollution ITEP Air Quality Training Lower Kalskag 2014

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Measuring particle pollution itep air quality training lower kalskag 2014

Measuring Particle PollutionITEP Air Quality TrainingLower Kalskag 2014

Mansel Nelson & Bob Morgan

ITEP & ADEC


What are we measuring and why

What Are We Measuring And Why?

  • Particles suspended in air that can have a significant effect on a person’s health and welfare.

  • In terms of protecting human health, we are measuring particles of a size range that penetrate deep into lungs.


Why size matters pm 10 pm 2 5

PM10

(10 µm)

PM2.5

(2.5 µm)

Why Size Matters PM10/ PM2.5

Hair cross section (60 µm)

Human Hair

(60 µmdiameter)


Things that all particulate samplers have in common

Things That All Particulate Samplers Have In Common

  • Size-selective sampling inlet (which separates out large dust particles from small particles that penetrate deep into lungs)

  • Filter or electronic sensing device

  • Electronics to maintain precision flow control

  • Vacuum source (vacuum motor or vacuum pump)


Particle sampler block diagram

Particle Sampler Block Diagram


Types of measurement methods

Types Of Measurement Methods

  • Filter Based Methods

  • Automated Electronics-Based Methods


Differences in method characteristics

Differences In Method Characteristics

  • Filter-Based Measurements

    • Requires laboratory analysis

    • Typically provides 24-hour avg value

    • Results are accurate and precise

    • Used for EPA-type measurements

  • Electronics-Based Measurements

    • Provides real-time results or near-real-time results

    • More portable (most of the time)

    • Good indicator of pollutant levels

    • Not as accurate


Types of filter based samplers

Types Of Filter-based Samplers

  • PM10 Hi-Volume Sampler

  • PM10 Low-Volume Sampler


Partisol 2000 filter based low volume sampler

Partisol 2000 – Filter Based Low-Volume Sampler


Examples of automated electronic monitors

Examples Of Automated Electronic Monitors

Dust Trak™

Laser - Light Scattering Sensor

Beta Attenuation Monitor (BAM)


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