树木统统向下风方向倾。
贫可燃浓度和1/10贫可燃浓度在排放口附近相近，在排放口下风方向差别较大。
The lean combustible concentration and the 1/10 lean combustible concentration are close at the emission point, and they have a great difference at the leeward of the emission point.
受尘降物污染最为严重的地区在爆炸点或者爆炸时的下风方向，80%的尘降物会在爆炸后的24小时内产生。
The heaviest fallout would be limited to the area at or downwind from the explosion, and 80 percent of the fallout would occur during the first 24 hours.
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