China's National Nuclear Emergency Coordination Committee said Friday in its daily notice that no obvious change had been found in the levels of radioactive material in the environment and food samples in the Chinese mainland.

No protective measures need to be taken against contamination from these materials, the notice said, adding that a sample survey indicated no abnormality in drinking water.

In addition, no obvious changes had been observed in the situation of the quake-damaged Fukushima Daiichi Nuclear Power Plant in Japan, and readings from on-site radiation monitoring posts at the nuclear complex remained stable, according to the notice, quoting the International Atomic Energy Agency's Friday report.