Word: toxically
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Dates: during 1980-1989
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...effects spread beyond the lakes. In some areas, humans may also be affected. In the Lac la Croix lake system of Ontario, where the Ojibway Indians fish for their livelihood, catches are showing high levels of mercury. Reason: the toxic metal, ordinarily concentrated in sediment, changes into an organic form, methyl mercury, in acid water and is then easily absorbed by the fish. While the threat to plants is not as well understood, acid rain can eat away at leaves, leach nutrients from the soil, interfere with photosynthesis, and affect the nitrogen-fixing capabilities of such plants as peas...
...have any evidence to support your claim that the Vietnamese are using toxic gas against...
...were thought to be hiding. An Army handout for one such mission, Operation Ranch Hand in 1966, assured the troops that "the sprayed chemical is nontoxic to human or animal life." But Agent Orange was contaminated by a byproduct of the manufacturing process, dioxin, which is perhaps the most toxic synthetic chemical known. When a few pounds of it were released into the air by an explosion at an Italian chemical plant in 1976, more than 700 people in the town of Seveso were evacuated. Some of them have never been allowed to return to their homes, which are still...