published_or_final_version / abstract / Architecture / Doctoral / Doctor of Philosophy

Kin-Fai Ho. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1999. / Includes bibliographical references (leaves [61-66]). / Abstracts in English and Chinese. / Contents / ACKNOWLEDGMENT / ABSTRACT / Chapter CHAPTER 1 --- INTRODUCTION / Chapter 1.1 --- Air Pollution in Hong Kong / Chapter 1.2 --- Brief introduction of Particulate Matter / Chapter 1.2.1 --- Total suspended particulates / Chapter 1.2.2 --- Respirable suspended particulates / Chapter 1.2.3 --- PM2.5 / Chapter 1.3 --- Lead in Air Particulate and its Harmful Effects on Human / Chapter 1.4 --- Air Sampling / Chapter 1.5 --- Sample Treatment / Chapter 1.5.1 --- Acid digestion method / Chapter 1.5.2 --- Slurry sampling method / Chapter 1.5.3 --- Comparison between acid digestion and slurry sampling method / Chapter 1.5.4 --- Chemical modification / Chapter CHAPTER 2 --- EXPERIMENTAL / Chapter 2.1 --- Apparatus / Chapter 2.2 --- Instrumental analysis / Chapter 2.2.1 --- Electrothermal atomic absorption spectrometry / Chapter 2.2.2 --- Background correction by the Zeeman effect / Chapter 2.3 --- Reagents / Chapter 2.4 --- Procedure / Chapter 2.4.1 --- Collection of air sample / Chapter 2.4.2 --- Treatment of sample collected on filter / Chapter 2.4.2.1 --- Digestion Procedure / Chapter 2.4.2.2 --- Procedure for Slurry Preparation / Chapter 2.4.3 --- Temperature program employed / Chapter 2.4.4 --- Sample introduction / Chapter 2.4.5 --- Determination of Lead in PM 2.5 by Acid Digestion Method / Chapter 2.4.6 --- Determination of Lead in PM 2.5 by Developed Method / Chapter 2.4.7 --- Study of particle size and suspension behavior of PM 2.5 in solvent / Chapter CHAPTER 3 --- RESULTS AND DISCUSSION / Chapter 3.1 --- Choice of filter for air sampling / Chapter 3.2 --- Choice of Solvents for Suspension of Air Particulates / Chapter 3.3 --- Ultrasonic agitation / Chapter 3.4 --- Effect of the sonication time / Chapter 3.5 --- Particle size and Effect of stabilization agents / Chapter 3.6 --- Effect of acid predigestion of the slurry sample / Chapter 3.7 --- Chemical Modification / Chapter 3.7.1 --- Use palladium as chemical modifier / Chapter 3.7.2 --- Amount of chemical modifier / Chapter 3.7.3 --- Effect of nitric acid / Chapter 3.8 --- Optimization of the graphite furnace temperature / Chapter 3.9 --- Effect of using platform / Chapter 3.10 --- Sample injection volume / Chapter 3.11 --- Recovery study of Lead in PM2.5 / Chapter 3.12 --- The limit of detection and precision of the developed method / Chapter CHAPTER 4 --- CONCLUSION / APPENDIX / REFERENCES

published_or_final_version / Housing Management / Master / Master of Housing Management

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

published_or_final_version / Urban Studies / Master / Master of Social Sciences

published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

published_or_final_version / Geography / Master / Master of Philosophy

published_or_final_version / Community Medicine / Doctoral / Doctor of Philosophy

Sze Sai-tim. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2001. / Includes bibliographical references (leaves 77-82). / Abstracts in English and Chinese. / Acknowledgment --- p.i / Abstract (English) --- p.ii / Abstract (Chinese) --- p.iii / List of Figures --- p.iv / List of Tables --- p.v / Chapter 1. --- INTRODUCTION / Chapter 1.1 --- Air pollution in Hong Kong --- p.1 / Chapter 1.2 --- Chemical speciation of carbon in air particulates --- p.3 / Chapter 1.3 --- Carbonaceous compounds in air and their harmful effects --- p.6 / Chapter 1.4 --- Review of analytical techniques for carbon determination --- p.14 / Chapter 1.5 --- Research objective --- p.18 / Chapter 1.6 --- Brief description of the project --- p.20 / Chapter 2. --- INSTRUMENTATION AND THEORY / Chapter 2.1 --- Thermal-optical-FID method --- p.21 / Chapter 2.2 --- Combustion-NDIR method --- p.27 / Chapter 2.3 --- Comparison between two methods --- p.28 / Chapter 2.4 --- Materials used for preparing standards --- p.30 / Chapter 2.5 --- Filter media for thermal analysis of carbon containing aerosols --- p.31 / Chapter 3. --- EXPERIMENTAL / Chapter 3.1 --- Instrumentation --- p.33 / Chapter 3.2 --- Apparatus --- p.33 / Chapter 3.3 --- Reagents --- p.35 / Chapter 3.4 --- Analysis time and operation temperature --- p.36 / Chapter 3.5 --- Procedures --- p.38 / Chapter 4. --- RESULTS AND DISCUSSION / Chapter 4.1 --- Particulate matter concentration in air --- p.43 / Chapter 4.2 --- Calibration --- p.43 / Chapter 4.3 --- Recovery study of total carbon in Standard Reference Material --- p.47 / Chapter 4.4 --- Study of filter deposit homogeneity --- p.50 / Chapter 4.5 --- Determination of total carbon in air particulates --- p.52 / Chapter 4.6 --- Further comparison of two methods by determination of total carbon in different sample type (river suspended solids) --- p.61 / Chapter 4.7 --- Repeatability of time of evolution and quantity of carbon determined by thermal optical-FID --- p.70 / Chapter 4.8 --- Reproducibility of measuring total carbon in PM2 5 and PM10 --- p.73 / Chapter 5. --- CONCLUSION --- p.75 / Chapter 6. --- REFERENCES --- p.77