Chinese scientists are considering whether a small but gradual increase in environmental radiation picked up by monitoring stations close to the border with North Korea is related to the nuclear test carried out over the weekend.
The changes could be down to environmental factors and unrelated to the nuclear test, but the trend was “worthy of attention”, said a scientist who sits on a panel that advises the Chinese government on emergency responses to radioactive hazards.
Landslides detected at North Korea’s nuclear test site after Chinese expert warns blast zone at risk of imploding
The radiation level in Changbai Korean autonomous county – the closest Chinese urban area to the Punggye-ri test facility – climbed gradually from an average of 104.9 nanograys per hour immediately after the test on Sunday to 108.5 on Tuesday, according to figures released by China’s environment ministry.
By Wednesday morning the average level in the county, which lies about …
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