Officials, academics and industry representatives gathered in Taipei yesterday to debate a National Health Research Institutes (NHRI) study that found students near the No. 6 Naphtha Cracker have a higher risk of developing cancer due to chronic exposure to vinyl chloride monomer (VCM).
Amid doubts about whether the research was scientifically sound and claims that results were too preliminary for policymaking, the panel brought together many stakeholders in the issue, including government officials, NHRI researchers, medical and public health researchers and academics, residents from the affected area and representatives of Formosa Plastics Group (FPG, 台塑集團), which operates the cracker in Yunlin County’s Mailiao Township (麥寮).
The forum, led by Democratic Progressive Party Legislator Liu Chien-kuo (劉建國), came after National Taiwan University Institute of Occupational Medicine and Industrial Hygiene professor Chan Chang-chuan (詹長權), who participated in the NHRI-sponsored study, revealed its findings earlier this week.
Photo: CNA
Chan said the research, controlled for other factors that might affect a metabolic process called thiodiglycolic acid (TDGA) excretion, found that students at the Syucuo branch of Ciaotou Elementary School, which is less than a kilometer from the FPG cracker, had elevated levels of TDGA in their urine. TDGA is major metabolite of VCM, which is a proven carcinogen and a gas released after standard processing by the plant, Chan said.
The average measurement from schoolchildren at the Syucuo school — 192.08 micrograms of TDGA per gram of creatinine — was much higher than that from three other elementary schools farther away from the plant, Chan said.
More than one student was found to have a urine level exceeding 500 micrograms of TDGA per gram of creatinine, he added.
Chan’s revelation of the “primary result,” in the words of the NHRI, of the research to reporters and his interpretation of the data were challenged by some officials, academics and the plant’s operator.
NHRI researcher Wen Chi-pang (溫啟邦), who was not involved in the study, countered that there is “nowhere in the world” where a company would determine the VCM exposure of its workers by testing TDGA levels in their urine.
“There is an association between VCM and TDGA, but maybe it is not that salient [for TDGA as a biomarker],” Wen said.
Wen said it is misleading for media outlets to directly link TDGA levels with cancer risks.
“Overinterpretation should not be encouraged lest panic spread among the residents,” Wen said.
Several experts, as well as the FPG in its statement, questioned the validity of urinary TDGA levels as a biomarker for VCM exposure, and the lack of a control group or a group with background value.
Yunlin County Deputy Commissioner Shih Keh-he (施克和) said he was “confused” by the perceived contradiction shown by Chan and the NHRI’s interpretations of the research result.
What Shih was referring to was that while a NHRI researcher making a presentation during the discussion said that the health examination given to the schoolchildren showed no abnormalities, Chan interpreted elevated TDGA levels as signifying a serious risk to the children’s health.
Yunlin County Government Health Bureau head Wu Chao-chun (吳昭軍), who attended a meeting held by the NHRI for local residents on Wednesday night, said that while the Syucuo students’ average urinary TDGA level is exceptionally high, that by itself does not indicate a higher risk of cancer.
The NHRI was accused of downplaying the elevated numbers and the association between TDGA and VCM in the meeting with the residents, which met with strong criticism from at least one academic.
However, many academics agreed that while the soundness of the research could be improved and the study has a long way to go, for the children’s sake it would be appropriate for the government to take action and relocate the students before the final results arise, a conclusion with which Shih agreed.
PREPAREDNESS: Given the difficulty of importing ammunition during wartime, the Ministry of National Defense said it would prioritize ‘coproduction’ partnerships A newly formed unit of the Marine Corps tasked with land-based security operations has recently replaced its aging, domestically produced rifles with more advanced, US-made M4A1 rifles, a source said yesterday. The unnamed source familiar with the matter said the First Security Battalion of the Marine Corps’ Air Defense and Base Guard Group has replaced its older T65K2 rifles, which have been in service since the late 1980s, with the newly received M4A1s. The source did not say exactly when the upgrade took place or how many M4A1s were issued to the battalion. The confirmation came after Chinese-language media reported
The Taiwanese passport ranked 33rd in a global listing of passports by convenience this month, rising three places from last month’s ranking, but matching its position in January last year. The Henley Passport Index, an international ranking of passports by the number of designations its holder can travel to without a visa, showed that the Taiwan passport enables holders to travel to 139 countries and territories without a visa. Singapore’s passport was ranked the most powerful with visa-free access to 192 destinations out of 227, according to the index published on Tuesday by UK-based migration investment consultancy firm Henley and Partners. Japan’s and
A Ministry of Foreign Affairs official yesterday said that a delegation that visited China for an APEC meeting did not receive any kind of treatment that downgraded Taiwan’s sovereignty. Department of International Organizations Director-General Jonathan Sun (孫儉元) said that he and a group of ministry officials visited Shenzhen, China, to attend the APEC Informal Senior Officials’ Meeting last month. The trip went “smoothly and safely” for all Taiwanese delegates, as the Chinese side arranged the trip in accordance with long-standing practices, Sun said at the ministry’s weekly briefing. The Taiwanese group did not encounter any political suppression, he said. Sun made the remarks when
BROAD AGREEMENT: The two are nearing a trade deal to reduce Taiwan’s tariff to 15% and a commitment for TSMC to build five more fabs, a ‘New York Times’ report said Taiwan and the US have reached a broad consensus on a trade deal, the Executive Yuan’s Office of Trade Negotiations said yesterday, after a report said that Washington is set to reduce Taiwan’s tariff rate to 15 percent. The New York Times on Monday reported that the two nations are nearing a trade deal to reduce Taiwan’s tariff rate to 15 percent and commit Taiwan Semiconductor Manufacturing Co (TSMC, 台積電) to building at least five more facilities in the US. “The agreement, which has been under negotiation for months, is being legally scrubbed and could be announced this month,” the paper said,
RSS