The Environmental Protection Administration (EPA) yesterday launched its annual showcase for soil and groundwater protection in Taipei, drawing hundreds of global delegates to learn about the agency’s efforts to prevent soil and water contamination and the nation’s pollution-monitoring technologies.
The three-day exhibition, dubbed the International Conference of Remediation and Management of Soil and Groundwater Contaminated Sites, highlights partnerships between the EPA, local precision manufacturing companies and academic experts to develop and apply new environmental protection technologies.
For example, National Taiwan University associate professor Huang Chien-fen (黃千芬), an expert on sediment surveying, is guiding the agency on how to operate a sub-bottom profiler — a machine that performs real-time data analysis on sediments to find areas with excessive levels of heavy metals.
Agency official Chang Chih-wei (張志偉) said that the device helps the EPA locate areas that need to be excavated to prevent heavy metals from being consumed by freshwater animals or tapped for irrigation and entering the food chain.
Regarding dioxin sampling, EPA Environmental Analysis Laboratory division head Chen Yuan-wu (陳元武) said the agency is collaborating with a private firm to develop a continuous centrifugal system to sample dioxins in groundwater, wastewater and drinking water from purification plants.
The machine uses filter paper and foam to extract dioxins in water samples before frozen samples undergo detailed analysis, he said.
The machine, although developed over a period of more than three years, cost about NT$500,000 (US$16,150), making it more time-saving than its predecessors and more cost-efficient than its Japanese counterparts, which cost twice as much, he said.
On managing defunct factories, agency official Sun Tung-ching (孫冬京) said plant or land owners must pass the EPA’s soil analysis before they can set up factories in other places or lease their land to other operators.
There are about 120,000 defunct plants nationwide, she said.
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