Convenient substitute indices to toxic equivalent quantity for controlling and monitoring dioxins in stack gas from waste incineration facilities

• Published in: Waste management (Elmsford) Vol. 21; no. 1; pp. 55 - 62
• Main Authors: KATO, M, URANO, K
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Science 2001; New York, NY
• Subjects: Air Pollution - analysis; Air pollution caused by fuel industries; Applied sciences; Atmospheric pollution; Combustion and energy production; Dioxins - analysis; Dioxins - toxicity; Energy; Energy. Thermal use of fuels; Environmental Monitoring - methods; Exact sciences and technology; Incineration; Metering. Control; Pollution; Pollution sources. Measurement results; Quality Control; Reference Values; Refuse Disposal - standards; Regression Analysis; Sensitivity and Specificity; Correlation; Heat treatment; Chemical analysis; Dioxin derivatives; Toxicity; Waste treatment; Urban waste; Emission content; Pollutant creation; Gas analysis; Oxygen heterocycle; Pollutant emission; Precursor; Chlorine Organic compounds; Stoker furnace; Emission measure; Sampling; Coupled method; Fluidized bed oven; Rotary kiln; Polychlorobiphenyl; Indicator; Gaseous effluent; Gas chromatography; Industrial waste; Incineration; Solid waste; Toxic equivalency factor; Air pollution; Mass spectrometry; Monitoring control system
• ISSN: 0956-053X; 1879-2456
• DOI: 10.1016/S0956-053X(00)00048-9

It is necessary to develop technical systems for controlling and monitoring dioxins in stack gas from waste incineration facilities. However, it required much labor, high technical skill and extreme cost to measure dioxins for obtaining the toxic equivalent quantity (TEQ) values. In this study, the positive correlations of the WHO-TEQ values of PCDDs/PCDFs/Co-PCBs or PCDDs/PCDFs with the conventional I-TEQ values of PCDDs/PCDFs were confirmed beforehand for a large number of incineration facilities in a wide concentration range of a hundred thousand times. The relationships between the TEQ values and the concentrations of total PCDDs/PCDFs, each toxic isomer of PCDDs/PCDFs, total Cl4-6BZs, or each homologue of Cl4-6BZs were investigated for various incineration facilities. And it was found that positive correlations of the TEQ values with the concentrations of total PCDDs/PCDFs, 2,3,4,7,8-P5CDF, or Cl5BZ for a large number of different incineration facilities and in a wide concentration range. Consequently, the concentrations of total PCDDs/PCDFs, 2,3,4,7,8-P5CDF and Cl5BZ, whose measuring methods are much easier than that of obtaining the TEQ values, could be used as convenient substitute indices to the TEQ values for controlling and monitoring dioxins in stack gas from various waste incineration facilities.