"Nitrogen is directly toxic to our peat-forming species," said ... The upturned bottom half of a plant pot, pierced with wires running down into little pots, collects samples from the air, while ...

Some highly toxic elements like lead and cadmium cannot ... a high pH and thus have limited iron available for uptake by plants). Nitrogen and phosphorus are among the elements considered most ...

Nitrogen pollution is linked to a range of health problems, including increased risk of lung and heart disease, diabetes, birth problems, cancer and even death. This pollution also leads to excess ...

A leak of liquid nitrogen at a poultry plant in the US state of Georgia has killed six people. Officials say 12 others were hospitalised following Thursday's incident at the Foundation Food Group ...