Fourth Symposium on Our Environment Proceedings of the Fourth Symposium on Our Environment, Held in Singapore, May 21-23, 1990

Analytical Methods.- Chromatographic Techniques for Pollution Analyses.- Separation of Large Polycyclic Aromatic Hydrocarbons in Particulate Matter by Liquid Chromatography.- The Effect of Oxygen Addition on the Determination of Cadmium and Lead in Blood and Foods by Graphite Fumace Atomic Absorption Spectrometry.- An Optimization Procedure for the Isocratic High-Performance Liquid Chromatographic Separations of Environmental Pollutants.- Some Applications of Freon-22 in Supercritical Fluid Chromatographic Analysis of Environmental Pollutants.- Identification of Residual Pesticides in Water by GC/QPMS.- Direct Coupling of Supercritical Fluid Extraction - Supercritical Fluid Chromatography for the Determination of Selected Polycyclic Aromatic Hydrocarbons in Aqueous Environmental Samples.- Separation of Selected PAHs by Using High Performance Capillary Electrophoresis with Modifiers.- Optimization of the Gradient HPLC Separation of Selected Phthalates Using the Overlapping Resolution Mapping Technique.- Analysis of Priority Substituted Phenols by Micellar Electrokinetic Chromatography.- Waste Management.- Incineration of Hazardous Wastes.- Environmental Management in Singapore.- Catalytic CO Oxidation over Manganese-Containing Perovskites.- Water Purification with Magnetic Particles.- Entrapping of Organic Wastes by Coordination Clathrates.- In Search of a Recyclable Sulphur Dioxide Sponge - A New Look at an Old System.- Leachate of Fly Ash Derived from Refuse Incineration.- Mercury Contamination - What We Have Leamed Since Minamata.- The Legal Control of Chlorofluorocarbon and Halon Substances in Hong Kong.- The Effectiveness of Composite Lining Systems in Controlling the Leakage of Leachate from Sanitary Landfills to Groundwater.- Factors Affecting the Leaching of Lead from UPVC Pipes.- Poly(Sodium Acrylamidoalkanoates) in Water Treatment.- Ecosystems Management.- Atmospheric Acidification in the Asian Region.- Improving the Living Environment of Singapore.- The New Environmentalist.- Proposals for the Conservation of Nature in Urban Singapore.- Microplankton Bloom in a Brackish Water Lagoon of Terengganu.- Temporal Variation in a Coral Reef Community at Pattaya Bay, Gulf of Thailand.- Water Quality Planning and Management for Dapeng Bay, China.- Ecology of Marine Fouling Organisms at Eastern lohore Strait.- Exposure/Risk Assessment.- DNA Adducts as Early Bioindicators of Chemical Exposure.- Some Gaseous Pollutants in Nakorn Sri Thammarat.- Management and Control of Pollution in Inner Johore Strait.- A Feasibility Study for Appraising Recreational Water Quality in a Southeast Asian Beach Complex.- Diurnal Models of Traffic-Generated CO for Penang, Malaysia.- Non-Radiological Contaminants from Uranium Mining and Milling at Ranger, Jabiru, Northern Territory, Australia.- Environmental and Biological Monitoring of Methyl Ethyl Ketone (MEK).- The Determination of Chlorofluorocarbons and Extractives in the Expanded and Disposable Polystyrene Ware.- Phenolic Water Pollutants in a Malaysian River Basin.- Lake Destratification and Speciation of Iron and Manganese.- Quality of Stormwater Runoff from an Urbanised Watershed.- The Distribution of Organic Matter in Songkhla Lake Basin (SLB).- Analysis of Pesticide Residues in Peninsular Malaysian Waterways.- A Study of the Heavy Metal Concentrations of the Singapore River.- Wind Flow in an Urban Environment.- Uptake, Distribution and Immunotoxicological Effects of Mercury in Mice.- Noise Surveys of Hand-Held Pneumatic Rock Drills in Hong Kong.- Major Factors of Industrial Noise-Induced Hearing Loss in Hong Kong.- Analysis of Pollution Monitoring by Expert Systems.