Atmospheric ammonia (NH3) from various anthropogenic sources has become a serious problem for natural vegetation. Ammonia not only causes changes in plant nitrogen metabolism, but also affects the ...
State officials say Missouri's current standards, last revised a quarter century ago, are based on outdated science. For ...
Lyophilized salmonella cells exposed to atmospheres of 3 different water activities ( a w) showed negligible death rates at very low a w both without ammonia and with ammonia at 100 to 400 μg/ml air.
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