The Diet in Japan moved closer to the enactment of a bill aimed at reducing dioxin emissions when the House of Councillors unanimously approved it. The anti-dioxin bill, which was sent to the House of Representatives for further discussion, would legally set the level of tolerable daily intake of dioxin at four picograms per kilogram of body mass. A picogram is one-trillionth of a gram. The lower house is expected to pass the bill by the end of the current Diet session, which ends on Aug. 13. It will go into effect within six months after its passage by the Diet.