Fourth Division is responsible for ：
●Analysis of organic items in water quality, wastes, soils, toxic chemicals, environmental hygiene chemicals and biotic samples.
●The development and setting up for the standard analytical methods of organic items.
●Establishment of testing capability for dioxin, dioxin-like and PBDEs, compounds
●Provision of advanced technological and testing support for the EPA's policy making and enforcement concerning dioxin and dioxin-like compounds from various environmental matrices
Major Tasks ：
●Analysis of volatile and semi-volatile organic compounds in samples. The Revise or setting up of the relevant analysis methods for pollutants in wastes, soils, sediments and so on and the execution of these analysis.
●The Revise or setting up of the relevant analysis methods for the key components and other matrices in toxic chemicals and environmental hygiene chemicals and the execution of these analysis.
●The execution of the project for the installation of fingerprint database of potential pollution sources.
●Establishment of methods for determining trace dioxin-like chemicals in environmental samples
●Analysis of polychlorinated dibenzo-p-dioxins and dibenzofurans in stack emission samples from incinerators
●Analysis of polychlorinated dibenzo-p-dioxins and dibenzofurans in Soil
●Analysis of PCDDs/PCDFs, dioxin-like PCBs and PBDEs in fish samples from Taiwan Rivers
●Determinations of levels of polychlorinated dibenzo-p-dioxins, dibenzofurans and polybrominated diphenyl ethers in sediments from rivers in Taiwan
Facilities and Equipments ：
●Gas Chromatograph .
●Gas Chromatograph / Mass Spectrometer 8 sets.
●High Performance Liquid Chromatograph 2 sets.
●Gel Permeation Chromatograph Cleanup System 2 sets.
●Pressurized Solvent Extraction System 4 sets.
●High Performance Liquid Chromatograph / Tandam Quadrupole Mass (MS-MS) 2 sets.
●High Resolution Gas Chromatography / High Resolution Mass Spectrometer (HRGC/HRMS) 3 sets
●Gas-Chromatography X Gas Chromatography Time-of-flight Mass Spectrometer.
●TurboVap II concentration 7 sets
●Nitrogen evaporation apparatus 4 sets
●Automation of laboratory procedures Automated Soxhlet Extraction(ASE) 5 sets
●Rotary evaporator 11 sets
●Freeze Centrifuge 3 sets
- Environmental Analysis Laboratory