Traditionally, car tires have been filled with compressed air. Air is 78 percent nitrogen and just under 21 percent oxygen, ...

Chief District Judge Shelly Dick's ruling came a week before Jessie Hoffman was set to be executed by nitrogen gas at the ...

A new study in the journal Science of the Total Environment found that emissions from onroad vehicles cause 342 premature deaths annually in Greater Boston. Nearly 90 percent of these deaths are ...