TSI's Nick Brown discusses the types of dust monitoring available including gravimetric sampling as well as workplace monitoring.

1. Types of monitoring
TSI – Nick Brown
Regional Sales Manager UK & Ireland
6th
July 2016

2. Agenda
+Gravimetric sampling
+Real time sampling
+Personal monitoring
+Work place monitoring
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3. Measurement
Methods
2. Real time monitoring
•Aerosol mass concentration
•Particle counts
1. Gravimetric Sampling
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4. Gravimetric
Sampling
HSE Standard MDHS 14/4
+ Method for Determining Hazardous Substances
+ Sampling should be as long as possible for WEL and 15
minutes for STEL
+ Weight in mg/m3
& analysis by laboratory
+ 2-3 week turn-around time
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5. Personal Monitoring
MUST be taken in the
Breathing Zone
30 cm Sphere30 cm Sphere
around the nosearound the nose
and mouthand mouth
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6. Sampling Results
+ Laboratory identifies Amount of Hazard Collected (mg)
+ Amount of Air Pumped is identified by the Pump (m3
)
+ Occupational Hygienist can Calculate mg/m3
+ If amount is too high – Corrective Action is mandatory!
But what happened?
Was it over the limit all of the time?
Or were there Peaks during the 8 hour sample?
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7. Real Time Monitoring
TIME
Diagnostic
Instruments find
problems
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8. How do I know
if I have a problem?
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Occupational
health monitoring
Personal exposure
monitoring
Real time work
place monitoring
DustTrak/P trakDustTrak/P-Trak Photo
Ionisation
Detection
Absorbent
Tubes
(gases)
Gravimetric
Real time

9. Personal Aerosol
Monitor
+ TSI SidePak AM510 – NEW AM520
+ Wear like a Sampling Pump
+ Particle sizes 1.0, 2.5, 4.0 & 10 µm
+ Static & personal monitor
+ TrakPro software
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10. Applications for
AM510/Sidepak
+ Personal Exposure monitoring/OH studies
+ Ambient/work area monitoring
+ Trending/screening
+ Engineering studies
+ Environmental sampling – e.g. local authorities London
+ Research work – e.g. Homes in London
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11. How do I know
if I have a problem?
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Occupational
health monitoring
Personal exposure
monitoring
Real time work
place monitoring
DustTrak/P trak
DustTrak/P-
Trak/AeroTrak
Photo
Ionisation
Detection
Absorbent
Tubes
(gases)
Gravimetric
Real time

12. Real time monitoring
DustTrak family
+ Mass Concentration
Indicative measurement in mg/m3
+ Graphical representation
+ Instantaneous readings
DANGER ZONE
oil fume/mist
airborne dust
virusses colour pigment pollen
bacteria hairs
tobacco smoke coal dust
carbon black cement dust
milled flour
0 0,01 µm 0,1 µm 1 µm 10 µm 100 µm
(0,1 mm)visible by electron microscope visible by microscope visible by eye
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13. Revolution in
Real-time Monitoring
The DustTraks are:
+Continuous
+Real-time
+90 degree light scattering photometers
+2 ranges – DustTrak II and DustTrak DRX
They are used to determine
the mass concentration
of dust aerosols
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14. DUSTRAK II – The single channel
photometer
Handheld Models
+ Lightweight
+ Perfect for Walkthrough Surveys
+ Single Point Data Collection
+ Manual and Programmable Data Logging
+ Rechargeable Li-Ion Battery
+ Concentration up to 150mg/m3
+Free TrakPro Download Software
Desktop Models
+ Ideal for Long Term Surveys
+ Remote Monitoring Applications
+ Manual and Programmable Data Logging
+ Rechargeable ‘Hot Swap’ Li-Ion Batteries
+ Concentration up to 400mg/m3
+ Collects Gravimetric Samples
+ Free TrakPro Download Software
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15. Impactor
Nozzles
Collection plate
Flow
Nozzle Diameter Dj
Jet to plate distance
Jet velocity U+ PM10 – Particles less than 10um
+ PM 2.5 – Particles less than 2.5um
+ PM1.0 – Particles less than 1.0um
A built-in Pump allows the use of
a variety of size-selective inlet
conditioners
The addition of a Cyclone enables the
Respirable fraction (4.0um @ 50%)
to be measured
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16. DustTrak DRX – the
multichannel photometer
+ DustTrak DRX aerosol monitors
are advanced continuous real-time, 90° light-scattering
laser photometer that simultaneously measure mass and
size fraction
• No other monitor can do both!
+ Desktop and handheld monitors measure size-segregated
mass fraction concentration
• Total PM, PM10, PM4.0, PM2.5, and PM1.0 size fractions
• Over a wide concentration range, 0.001 – 150 mg/m3
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17. Why is particle size
important?
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+ Small particle low in mass
but can cause major health
effects
+ Occupational hygienists
interested in PM 4 and
below
+ DustTrak DRX can
measure all these
fractions, plus total mass
at the same time
+ It is essentially a
photometer and particle
counter in one!!

18. Examples of
DustTrak users
DustTrak Handheld
+Walk through surveys in industry - construction
+Identify “hotspots” – company where you have
different jobs e.g. welding, grinding etc
+Find the problem – ? Filter problem
+Demonstrate filters – sales tool
+Indoor air quality surveys
DustTrak Desktop
+Continuous monitoring in industry (after using handheld)
+Petrochem industry
+Environmental monitoring
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19. Ultrafine Particle
Counter
+ TSI P-Trak
+ New concept for air monitoring Condensation
particle counter
+ Particles size range 20nm – 1micron
+ Measured in particles / cc
+ Ultrafine and Nanoparticles
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20. P-Trak users
+ Anyone working with nanoparticles
+ Cutting/grinding of nanomaterials
+ Indoor air quality surveys – diesel exhaust
+ Environmental monitoring – ultrafine particles
+ Finding “hotspots”
+ You can’t solve a problem you can’t find!!
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21. Q trak indoor air quality meter
+ Monitors levels of
temp/humidity/CO/CO2/VOC/Velocity
+ Plug and play system
+ Battery operated
+ 39 days worth of data storage
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22. Examples of Q trak users
+ IAQ investigations
+ Industrial hygiene surveys
+ Baseline trending and screening
+ Building commissioning
+ Tracking down emissions to their source (point
source location)
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23. Indoor air quality survey tools
+ ‘Sick building Syndrome’
+ Dusttrak for particulate analysis
+ Sidepak for personal monitoring
+ P trak for nanoparticle count (diesel exhaust)
+ Q trak for measurement of
temp/humidity/C02/CO/VOC
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24. Questions?