1. Introduction to Tisch Instruments
John Tisch
Tisch Environmental

2. TheβAttenuation method PM2
TheβAttenuation method PM2.5 Automated Dichotomous Monitor Model SPM-612D
Continuous PM analyzer developed by joint patent with Japan Science and Technology Corporation
Black Carbon feature originated from work of DRI/EPA and measurement of OC/EC

3. Features
Ambient PM2.5 fraction is emphasis of medical, epidemiological researchers
Ambient PM10 or PM2.5 and optical black carbon can be measured simultaneously on a continuous basis. PM Coarse is calculated and reported as PM10 - PM2.5 = PMC
Use of virtual impactor uses two measurements of fine and coarse particles simultaneously
Monitor’s fluorocarbon membrane filter reduces gas, moisture effect to minimum, assures high sensitivity
Sample spots on fluorocarbon membrane filter are useful for analyzing ion components and metal components after mass and Carbon direct measurements

4. Structure

5. Virtual Impactor PM10 and PM2.5 Simultaneously

6. Validation and Calibration Device for Particle Size-Cut Testing
Particle generator and chamber test separators for size-cut and penetration curves

7. Cut off curves

8. Comparison of Virtual Impactor vs WINS Impactor. (1-hour value)
Fig. 1
Comparison of Virtual Impactor vs WINS Impactor. (1-hour value)
Fig. 2.
Comparison of SPM-612D vs FRM sampler. (24-hour average)
WINS vs. VI and FRM vs. Continuous

9. Fig. 3.
Comparison of GRIMM, TEOM (at 50 ℃ controlled) vs SPM-612D　　　　　　　　　　 (1 hour value)
Fig. 4.
Comparison of EC by carbon monitor vs OBC by SPM-612D　　　　　　 (1 hour value)

10. Fig.5.
Plot of continuous ambient PM measurements

11. Element analysis

12. Time series Chemical Compositon

13. Gas and Particles

14. N & S

15. Winter Time Series/Chemical composition

16. Summer Time series/Chemical compositoin

17. Sampling time comparisons