| |
Integralmeasurement
Delayed Direct |
Particledistributionmeasurements
Delayed Direct |
| |
Advantages |
-necessarytoensurecontinuityin professionalassessments |
-informativemeasurementandseems relevantwitheffectsofpufinhumanhealth |
| |
Limitations |
-spatio-temporal variabilitynot accounted |
-what diameter should be measured-complex instrumentation -results difficult to interpret |
|
Particle number concentration |
-relatively simpleto perform |
-background noiseparticles inambientair cancause difficulties |
-sampling+ countingwithmebormet |
-condensation nucleuscounter (cpc,p-trak, portacount) |
|
-mobilityparticle sizer(smps,fmps, dms50)
-diffusionbattery
-electricallow pressureiimpactor(elpi)
-aerodynamic particlesizer(aps) |
|
Particlesurface area concentration |
-seems relevantwith effectsofpufin humanhealth |
- instrumentation performance
arenotyet
sufficiently known |
-sampling+
countingwithbet |
-diffusioncharging (nsam,lq1-dc,ead, dc2000)
-pas2000 |
|
|
|
Particlemass concentration |
-necessaryto ensure continuityin professional assessments |
-seemsnot enoughrelevant witheffectsof pufinhuman health
-difficultiesas asensitivity analysisin samplers |
-sampling+ gravimetric measurement |
-particulatematter samplerwith microbalance (teom) |
-cascadeimpactor
(moudi)
-lowpressure impactor(lpi)
-sampling+selection (filter,cyclone)+ gravimetric measurement |
-opticalparticle counter(opc) |
|
Particleshape/component measurement |
-informative measurement |
-isitrelevant?
-howto characterize theseparticles?
-thereisno methodof stabilized |
-sampling+ analysiswithmebormetorchemical analysis |
|
|
|
