Excellent Analytical Ability for All 5 Items Including BOD

The water quality analysis capability of Yongin City in Gyeonggi Province has been internationally recognized for two consecutive years.


On the 8th, Yongin City announced that it had been certified as a 'Laboratory of Excellence' in the international proficiency evaluation by the Environmental Resource Association (ERA) in the United States. The city added that it received this certification for two consecutive years following last year.

A staff member from the Yongin City Sewerage Office is conducting water quality analysis in the in-house laboratory. Provided by Yongin City

A staff member from the Yongin City Sewerage Office is conducting water quality analysis in the in-house laboratory. Provided by Yongin City

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ERA operates a program that provides unspecified samples to public and private water quality analysis institutions worldwide and evaluates the accuracy and reliability of their analytical capabilities based on the results. This year, 936 institutions worldwide participated in the evaluation.


The proficiency evaluation is part of quality control that comprehensively assesses not only the performance of analytical instruments and equipment but also the skills of technicians handling them, laboratory environment, and document management practices. It also examines testing and inspection capabilities for standard samples and the operational capacity of equipment for sample collection.


The city explained that the water quality analysis laboratory at the Sewage Treatment Office in Pogok-eup, Cheoin-gu, analyzed test samples for five items: BOD (Biochemical Oxygen Demand), TOC (Total Organic Carbon), SS (Suspended Solids), T-N (Total Nitrogen), and T-P (Total Phosphorus), and received excellent ratings in all fields.


With this certification proving the accuracy and reliability of public sewage treatment facility analysis, the city plans to use it as basic data to improve the water quality management level of sewage treatment facilities and to establish mid- to long-term policies in the sewage sector.


A city official said, "This certification is significant as it internationally recognizes the city's water quality analysis capability," adding, "We will continue to strengthen the expertise in water quality analysis so that citizens can trust it."



Meanwhile, Yongin City purifies an average of 373,530 tons of sewage inflow daily at 36 sewage treatment facilities and discharges it into nearby streams. The laboratory at the Sewage Treatment Office regularly inspects sewage and livestock manure treatment facilities in the region based on water quality analysis data for major processes.


This content was produced with the assistance of AI translation services.

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