1.   But there are legitimate concerns about what any incinerator emits into the atmosphere, not just chemical weapons incinerators.

2.   Even the most sophisticated incinerators emit substances such as dioxin, critics say.

3.   New technology, he said, dramatically reduces the amount of ash and other particulates emitted by incinerators.

4.   On Wednesday, opponents of the plant released an engineering study showing that the incinerator was emitting toxic chemicals into the atmosphere.

5.   Environmentalists say incinerators emit toxic substances such as dioxin, carbon dioxide, mercury and lead.