§ 5. Sir J. Langford-Holt
asked the Minister of Technology what is the level of radioactive fall-out at present; how this compares with previous years; and how much is attributable to the Chinese tests carried out in the summer.
§ The Joint Parliamentary Secretary to the Ministry of Technology (Dr. Jeremy Bray)
The present levels of long-lived radioactive fall-out are similar to those of 1967. About half of the current long-lived radioactivity may be attributed to the Chinese explosion of 17th June, 1967.